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Segfault in tinyfiledialogs causing test failures as kill races with crash dump reporter #12314

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larsbergstrom opened this issue Jul 7, 2016 · 13 comments
Closed

Segfault in tinyfiledialogs causing test failures as kill races with crash dump reporter #12314

larsbergstrom opened this issue Jul 7, 2016 · 13 comments
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A-infrastructure P-mac

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@larsbergstrom
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@larsbergstrom larsbergstrom commented Jul 7, 2016

@aneeshusa Do you have any logs from this update:
http://logs.glob.uno/?c=mozilla%23servo&s=6+Jul+2016&e=6+Jul+2016&h=mac#c475033
?

From what I can tell, after this happened we have been unable to land any PRs, with all test runs on the macs failing with:

  ▶ ERROR [expected OK] /geometry-1_dev/html/DOMRect-001.htm
  └   → Traceback (most recent call last):
  File "/Users/servo/buildbot/slave/mac-rel-css/build/tests/wpt/harness/wptrunner/executors/base.py", line 149, in run_test
    result = self.do_test(test)
  File "/Users/servo/buildbot/slave/mac-rel-css/build/tests/wpt/harness/wptrunner/executors/executorservo.py", line 133, in do_test
    self.proc.kill()
  File "/Users/servo/buildbot/slave/mac-rel-css/build/python/_virtualenv/lib/python2.7/site-packages/mozprocess/processhandler.py", line 749, in kill
    self.proc.kill(sig=sig)
  File "/Users/servo/buildbot/slave/mac-rel-css/build/python/_virtualenv/lib/python2.7/site-packages/mozprocess/processhandler.py", line 165, in kill
    send_sig(signal.SIGTERM)
  File "/Users/servo/buildbot/slave/mac-rel-css/build/python/_virtualenv/lib/python2.7/site-packages/mozprocess/processhandler.py", line 152, in send_sig
    os.killpg(pid, sig)
OSError: [Errno 1] Operation not permitted

The internet seems to think that we're trying to kill zombie processes, but I don't know if that's a red herring:
http://stackoverflow.com/questions/12521705/why-would-killpg-return-not-permitted-when-ownership-is-correct/12522688#12522688

The last PR we landed before all of this started was:
#12289

And all WPT / WPTRUNNER updates happened several days ago, so I'm not thinking they are related.

cc @edunham @metajack

This is currently blocking landing anything to servo master.
@highfive
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@highfive highfive commented Jul 7, 2016

cc @aneeshusa
@larsbergstrom
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@larsbergstrom larsbergstrom commented Jul 7, 2016

I suppose that one thing we could consider doing is putting a python exception handler around the call to self.proc.kill in the servo executor? I don't know if that's kosher, though.

cc @jdm @Ms2ger @jgraham
@larsbergstrom
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@larsbergstrom larsbergstrom commented Jul 7, 2016

I think that highstate was just intended to install ffpmeg via brew install:
servo/saltfs@bf61ddd
@larsbergstrom
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@larsbergstrom larsbergstrom commented Jul 7, 2016

Hrm, if I try to run ./mach test-css ./tests/wpt/css-tests/geometry-1_dev/html/DOMPoint-001.htm locally, I get:

Process:               servo [80837]
Path:                  /Users/USER/*/servo
Identifier:            servo
Version:               0.0.1
Code Type:             X86-64 (Native)
Parent Process:        Python [80833]
Responsible:           Terminal [394]
User ID:               501

Date/Time:             2016-07-07 10:19:20.605 -0500
OS Version:            Mac OS X 10.11.5 (15F34)
Report Version:        11
Anonymous UUID:        F0DF09A4-CB85-B3AC-A651-6FC77C655F55


Time Awake Since Boot: 590000 seconds

System Integrity Protection: enabled

Crashed Thread:        24

Exception Type:        EXC_CRASH (SIGABRT)
Exception Codes:       0x0000000000000000, 0x0000000000000000

Application Specific Information:
detected buffer overflow

Thread 0:: Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib          0x00007fff9026af72 mach_msg_trap + 10
1   libsystem_kernel.dylib          0x00007fff9026a3b3 mach_msg + 55
2   com.apple.CoreFoundation        0x00007fff9e2ca1c4 __CFRunLoopServiceMachPort + 212
3   com.apple.CoreFoundation        0x00007fff9e2c968c __CFRunLoopRun + 1356
4   com.apple.CoreFoundation        0x00007fff9e2c8ed8 CFRunLoopRunSpecific + 296
5   com.apple.HIToolbox             0x00007fff8dc9a935 RunCurrentEventLoopInMode + 235
6   com.apple.HIToolbox             0x00007fff8dc9a76f ReceiveNextEventCommon + 432
7   com.apple.HIToolbox             0x00007fff8dc9a5af _BlockUntilNextEventMatchingListInModeWithFilter + 71
8   com.apple.AppKit                0x00007fff9e761df6 _DPSNextEvent + 1067
9   com.apple.AppKit                0x00007fff9e761226 -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 454
10  servo                           0x0000000110c124de objc::message::{{impl}}::invoke<u64,*mut objc::runtime::Object,*mut objc::runtime::Object,i8,*mut objc::runtime::Object> + 158 (mod.rs:120)
11  servo                           0x0000000110c12412 objc::message::send_unverified<objc::runtime::Object,(u64, *mut objc::runtime::Object, *mut objc::runtime::Object, i8),*mut objc::runtime::Object> + 194 (mod.rs:187)
12  servo                           0x0000000110c12153 _$LT$$BP$mut$u20$objc..runtime..Object$u20$as$u20$cocoa..appkit..NSApplication$GT$::nextEventMatchingMask_untilDate_inMode_dequeue_::h2e9549921027be24 + 339 (mod.rs:197)
13  servo                           0x0000000110bfc791 _$LT$glutin..api..cocoa..WaitEventsIterator$LT$$u27$a$GT$$u20$as$u20$core..iter..iterator..Iterator$GT$::next::hea4d8b8d0439c3c6 + 833
14  servo                           0x0000000110c1014c _$LT$glutin..window..WaitEventsIterator$LT$$u27$a$GT$$u20$as$u20$core..iter..iterator..Iterator$GT$::next::h6ede7615f372b1dc + 28 (lib.rs:156)
15  servo                           0x0000000110927008 glutin_app::window::Window::handle_next_event::he63027b367daa47d + 104
16  servo                           0x0000000110927a0f glutin_app::window::Window::wait_events::hdeeb50f01d32ee71 + 975
17  servo                           0x000000010dc899c7 servo::main + 2071 (main.rs:127)
18  servo                           0x0000000111ba78ce std::panicking::try::call::h852b0d5f2eec25e4 + 30
19  servo                           0x0000000111bacbdc __rust_try + 12
20  servo                           0x0000000111ba76f2 std::rt::lang_start::hfe4efe1fc39e4a30 + 562
21  servo                           0x000000010ddb374a main + 42

Thread 1:
0   libsystem_kernel.dylib          0x00007fff902715e2 __workq_kernreturn + 10
1   libsystem_pthread.dylib         0x00007fff90295578 _pthread_wqthread + 1283
2   libsystem_pthread.dylib         0x00007fff90293341 start_wqthread + 13

Thread 2:: Dispatch queue: com.apple.libdispatch-manager
0   libsystem_kernel.dylib          0x00007fff90271efa kevent_qos + 10
1   libdispatch.dylib               0x00007fff92225165 _dispatch_mgr_invoke + 216
2   libdispatch.dylib               0x00007fff92224dcd _dispatch_mgr_thread + 52

Thread 3:
0   libsystem_kernel.dylib          0x00007fff902715e2 __workq_kernreturn + 10
1   libsystem_pthread.dylib         0x00007fff90295578 _pthread_wqthread + 1283
2   libsystem_pthread.dylib         0x00007fff90293341 start_wqthread + 13

Thread 4:
0   libsystem_kernel.dylib          0x00007fff902715e2 __workq_kernreturn + 10
1   libsystem_pthread.dylib         0x00007fff90295578 _pthread_wqthread + 1283
2   libsystem_pthread.dylib         0x00007fff90293341 start_wqthread + 13

Thread 5:
0   libsystem_kernel.dylib          0x00007fff902715e2 __workq_kernreturn + 10
1   libsystem_pthread.dylib         0x00007fff90295578 _pthread_wqthread + 1283
2   libsystem_pthread.dylib         0x00007fff90293341 start_wqthread + 13

Thread 6:: Time profiler
0   libsystem_kernel.dylib          0x00007fff9026af72 mach_msg_trap + 10
1   libsystem_kernel.dylib          0x00007fff9026a3b3 mach_msg + 55
2   servo                           0x0000000111a607b3 ipc_channel::platform::macos::select::h3e27b5cad5402db6 + 675
3   servo                           0x0000000111a600d1 ipc_channel::platform::macos::MachReceiver::recv_with_blocking_mode::h38675809999a4142 + 65
4   servo                           0x0000000111a5c8fe ipc_channel::platform::macos::MachReceiver::recv::hc772b032a3f18042 + 30
5   servo                           0x0000000110f6ebff _$LT$ipc_channel..ipc..IpcReceiver$LT$T$GT$$GT$::recv::hbd47299f60e0ae61 + 47
6   servo                           0x0000000110f6e4b1 profile::time::Profiler::create::_$u7b$$u7b$closure$u7d$$u7d$::hd49cd8e57770603d + 81
7   servo                           0x0000000110f6e423 _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h5869c9faef383e73 + 51
8   servo                           0x0000000110f6e3dd std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h8e8e586cd2d1f466 + 77
9   servo                           0x0000000110f6e965 std::panicking::try::call::h5a65620015872dcc + 21
10  servo                           0x0000000111bacbdc __rust_try + 12
11  servo                           0x0000000110f6e33e std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::h9b3db82efcb9aa87 + 158
12  servo                           0x0000000110f6e290 _$LT$std..thread..local..LocalKey$LT$T$GT$$GT$::with::hc529af1b7cb2ac17 + 208
13  servo                           0x0000000110f6e101 std::panicking::try::h32b86d80ce1836be + 113
14  servo                           0x0000000110f6e04a std::panic::catch_unwind::h370e6df3133cd84e + 58
15  servo                           0x0000000110f6df0a std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h9ce03fb3d4c89831 + 314
16  servo                           0x0000000110f6eb41 _$LT$F$u20$as$u20$alloc..boxed..FnBox$LT$A$GT$$GT$::call_box::h9d857e0108296fb5 + 65
17  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
18  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
19  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
20  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 7:: Memory profiler
0   libsystem_kernel.dylib          0x00007fff9026af72 mach_msg_trap + 10
1   libsystem_kernel.dylib          0x00007fff9026a3b3 mach_msg + 55
2   servo                           0x0000000111a607b3 ipc_channel::platform::macos::select::h3e27b5cad5402db6 + 675
3   servo                           0x0000000111a600d1 ipc_channel::platform::macos::MachReceiver::recv_with_blocking_mode::h38675809999a4142 + 65
4   servo                           0x0000000111a5c8fe ipc_channel::platform::macos::MachReceiver::recv::hc772b032a3f18042 + 30
5   servo                           0x0000000110f2b5df _$LT$ipc_channel..ipc..IpcReceiver$LT$T$GT$$GT$::recv::h3c4411fef04ba704 + 47
6   servo                           0x0000000110f2514b profile::mem::Profiler::start::he4752479bdae7092 + 43
7   servo                           0x0000000110f24a5c profile::mem::Profiler::create::_$u7b$$u7b$closure$u7d$$u7d$::hef9535e26b0c212e + 92
8   servo                           0x0000000110f249c3 _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h85b91913ee9f520a + 51
9   servo                           0x0000000110f2497d std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h670632056e4f6981 + 77
10  servo                           0x0000000110f24e25 std::panicking::try::call::h81f6dfea36944ef2 + 21
11  servo                           0x0000000111bacbdc __rust_try + 12
12  servo                           0x0000000110f248de std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::h362394575054e23e + 158
13  servo                           0x0000000110f24830 _$LT$std..thread..local..LocalKey$LT$T$GT$$GT$::with::ha49939f85a23c15e + 208
14  servo                           0x0000000110f246a1 std::panicking::try::h7e2f8f3772991484 + 113
15  servo                           0x0000000110f245ea std::panic::catch_unwind::h6fc776d0a467717c + 58
16  servo                           0x0000000110f244aa std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h21f15542446fb60b + 314
17  servo                           0x0000000110f25001 _$LT$F$u20$as$u20$alloc..boxed..FnBox$LT$A$GT$$GT$::call_box::hbfa29c873eb6db23 + 65
18  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
19  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
20  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
21  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 8:
0   libsystem_kernel.dylib          0x00007fff9026af72 mach_msg_trap + 10
1   libsystem_kernel.dylib          0x00007fff9026a3b3 mach_msg + 55
2   servo                           0x0000000111a607b3 ipc_channel::platform::macos::select::h3e27b5cad5402db6 + 675
3   servo                           0x0000000111a6253c ipc_channel::platform::macos::MachReceiverSet::select::h2da983a365a6596e + 76
4   servo                           0x0000000111a4e6e4 ipc_channel::ipc::IpcReceiverSet::select::h6b9ed832edfbb634 + 52 (ipc.rs:224)
5   servo                           0x0000000111a688ef ipc_channel::router::Router::run::hfa02a8c1d6e7fc17 + 111
6   servo                           0x0000000111a67e2b ipc_channel::router::RouterProxy::new::_$u7b$$u7b$closure$u7d$$u7d$::h5aa42a2ef9f63120 + 139
7   servo                           0x0000000111a67d6a _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h2ba17c48d0062095 + 106
8   servo                           0x0000000111a67ce4 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h2aba3be52f078c88 + 68
9   servo                           0x0000000111a68385 std::panicking::try::call::h7f5794717bedf154 + 21
10  servo                           0x0000000111bacbdc __rust_try + 12
11  servo                           0x0000000111a679ee std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::hf83032ec21e123c9 + 158
12  servo                           0x0000000111a678d0 _$LT$std..thread..local..LocalKey$LT$T$GT$$GT$::with::ha88bdc2e637ad54e + 208
13  servo                           0x0000000111a6772d std::panicking::try::he6fa018d0a3d040d + 173
14  servo                           0x0000000111a67641 std::panic::catch_unwind::hdc3fc18ac209eb09 + 113
15  servo                           0x0000000111a674c9 std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::hfa6ca8d293078db0 + 345
16  servo                           0x0000000111a68725 _$LT$F$u20$as$u20$alloc..boxed..FnBox$LT$A$GT$$GT$::call_box::h8a0fb11568a4077b + 101
17  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
18  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
19  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
20  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 9:: BluetoothThread
0   libsystem_kernel.dylib          0x00007fff9026af72 mach_msg_trap + 10
1   libsystem_kernel.dylib          0x00007fff9026a3b3 mach_msg + 55
2   servo                           0x0000000111a607b3 ipc_channel::platform::macos::select::h3e27b5cad5402db6 + 675
3   servo                           0x0000000111a600d1 ipc_channel::platform::macos::MachReceiver::recv_with_blocking_mode::h38675809999a4142 + 65
4   servo                           0x0000000111a5c8fe ipc_channel::platform::macos::MachReceiver::recv::hc772b032a3f18042 + 30
5   servo                           0x0000000110112bcf _$LT$ipc_channel..ipc..IpcReceiver$LT$T$GT$$GT$::recv::h4949527f3e1dd3d9 + 47
6   servo                           0x00000001101098f3 net::bluetooth_thread::BluetoothManager::start::h8e1bd027f820c04f + 179
7   servo                           0x000000011010914c _$LT$ipc_channel..ipc..IpcSender$LT$net_traits..bluetooth_thread..BluetoothMethodMsg$GT$$u20$as$u20$net..bluetooth_thread..BluetoothThreadFactory$GT$::new::_$u7b$$u7b$closure$u7d$$u7d$::hf9f5593f0420d6e3 + 108
8   servo                           0x00000001101090a1 _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h6ba9423ae99b9814 + 65
9   servo                           0x0000000110109044 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::hf89d1f6bef8f0f03 + 68
10  servo                           0x0000000110109565 std::panicking::try::call::he0c5d9068ac737b6 + 21
11  servo                           0x0000000111bacbdc __rust_try + 12
12  servo                           0x0000000110108fae std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::hddaaa6fd7164fb05 + 158
13  servo                           0x0000000110108f00 _$LT$std..thread..local..LocalKey$LT$T$GT$$GT$::with::h93fb126f294479b0 + 208
14  servo                           0x0000000110108d70 std::panicking::try::h08cec4a81c37183a + 128
15  servo                           0x0000000110108ca8 std::panic::catch_unwind::h64289d2161d74307 + 72
16  servo                           0x0000000110108b59 std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h25a14b501c68158e + 313
17  servo                           0x000000011010974d _$LT$F$u20$as$u20$alloc..boxed..FnBox$LT$A$GT$$GT$::call_box::hb3ec5b47b8d734ff + 77
18  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
19  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
20  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
21  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 10:: ResourceManager
0   libsystem_kernel.dylib          0x00007fff9026af72 mach_msg_trap + 10
1   libsystem_kernel.dylib          0x00007fff9026a3b3 mach_msg + 55
2   servo                           0x0000000111a607b3 ipc_channel::platform::macos::select::h3e27b5cad5402db6 + 675
3   servo                           0x0000000111a6253c ipc_channel::platform::macos::MachReceiverSet::select::h2da983a365a6596e + 76
4   servo                           0x0000000111a4e6e4 ipc_channel::ipc::IpcReceiverSet::select::h6b9ed832edfbb634 + 52 (ipc.rs:224)
5   servo                           0x000000010fff95e8 net::resource_thread::{{impl}}::start + 696 (resource_thread.rs:251)
6   servo                           0x000000010fff8812 net::resource_thread::new_core_resource_thread::{{closure}} + 626 (resource_thread.rs:201)
7   servo                           0x000000010fff854c std::panic::{{impl}}::call_once<(),closure> + 156 (panic.rs:251)
8   servo                           0x000000010fff8499 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h94eaa394806c2cb0 + 89
9   servo                           0x000000010fff8e45 std::panicking::try::call<closure> + 21 (panicking.rs:271)
10  servo                           0x0000000111bacbdc __rust_try + 12
11  servo                           0x000000010fff83ee std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::ha5417aeabe8fc5d8 + 158
12  servo                           0x000000010fff8340 std::thread::local::{{impl}}::with<core::cell::Cell<usize>,closure,core::result::Result<(), Box<Any>>> + 208 (local.rs:206)
13  servo                           0x000000010fff8176 std::panicking::try<(),std::panic::AssertUnwindSafe<closure>> + 198 (panicking.rs:235)
14  servo                           0x000000010fff805b std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,()> + 155 (panic.rs:307)
15  servo                           0x000000010fff7ebb std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h40909f7855d9d5aa + 363
16  servo                           0x000000010fff905e alloc::boxed::{{impl}}::call_box<(),closure> + 126 (boxed.rs:544)
17  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
18  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
19  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
20  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 11:: StorageManager
0   libsystem_kernel.dylib          0x00007fff9026af72 mach_msg_trap + 10
1   libsystem_kernel.dylib          0x00007fff9026a3b3 mach_msg + 55
2   servo                           0x0000000111a607b3 ipc_channel::platform::macos::select::h3e27b5cad5402db6 + 675
3   servo                           0x0000000111a600d1 ipc_channel::platform::macos::MachReceiver::recv_with_blocking_mode::h38675809999a4142 + 65
4   servo                           0x0000000111a5c8fe ipc_channel::platform::macos::MachReceiver::recv::hc772b032a3f18042 + 30
5   servo                           0x0000000110185d8f _$LT$ipc_channel..ipc..IpcReceiver$LT$T$GT$$GT$::recv::hc77788649fa6b3eb + 47
6   servo                           0x000000011017adc3 net::storage_thread::StorageManager::start::h0003ab532c7620c6 + 179
7   servo                           0x000000011017a6cb _$LT$ipc_channel..ipc..IpcSender$LT$net_traits..storage_thread..StorageThreadMsg$GT$$u20$as$u20$net..storage_thread..StorageThreadFactory$GT$::new::_$u7b$$u7b$closure$u7d$$u7d$::hba6d1a44325c7ec0 + 91
8   servo                           0x000000011017a633 _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h91a4aabe6b78225d + 51
9   servo                           0x000000011017a5ed std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::hfb9e926c4620470c + 77
10  servo                           0x000000011017aaa5 std::panicking::try::call::h13d3cddf8b91e85e + 21
11  servo                           0x0000000111bacbdc __rust_try + 12
12  servo                           0x000000011017a54e std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::ha4b7f7623cce3dfb + 158
13  servo                           0x000000011017a4a0 _$LT$std..thread..local..LocalKey$LT$T$GT$$GT$::with::hbaa062d3be393306 + 208
14  servo                           0x000000011017a311 std::panicking::try::h72590ff82b7dc2f8 + 113
15  servo                           0x000000011017a25a std::panic::catch_unwind::he8cb748f1493f525 + 58
16  servo                           0x000000011017a11a std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h7d7775aa6633979f + 314
17  servo                           0x000000011017ac81 _$LT$F$u20$as$u20$alloc..boxed..FnBox$LT$A$GT$$GT$::call_box::hdbf6b8b31f4961c3 + 65
18  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
19  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
20  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
21  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 12:: FileManager
0   libsystem_kernel.dylib          0x00007fff9026af72 mach_msg_trap + 10
1   libsystem_kernel.dylib          0x00007fff9026a3b3 mach_msg + 55
2   servo                           0x0000000111a607b3 ipc_channel::platform::macos::select::h3e27b5cad5402db6 + 675
3   servo                           0x0000000111a600d1 ipc_channel::platform::macos::MachReceiver::recv_with_blocking_mode::h38675809999a4142 + 65
4   servo                           0x0000000111a5c8fe ipc_channel::platform::macos::MachReceiver::recv::hc772b032a3f18042 + 30
5   servo                           0x000000010ffc1ddf ipc_channel::ipc::{{impl}}::recv<net_traits::filemanager_thread::FileManagerThreadMsg> + 47 (ipc.rs:73)
6   servo                           0x000000010ffc0392 net::filemanager_thread::{{impl}}::start<net::filemanager_thread::TFDProvider> + 290 (filemanager_thread.rs:129)
7   servo                           0x000000010ffbfc1e net::filemanager_thread::{{impl}}::new::{{closure}}<net::filemanager_thread::TFDProvider> + 78 (filemanager_thread.rs:86)
8   servo                           0x000000010ffbfb92 std::panic::{{impl}}::call_once<(),closure> + 66 (panic.rs:251)
9   servo                           0x000000010ffbfb34 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h0fb27fc88f2fcda5 + 68
10  servo                           0x000000010ffbfff5 std::panicking::try::call<closure> + 21 (panicking.rs:271)
11  servo                           0x0000000111bacbdc __rust_try + 12
12  servo                           0x000000010ffbfa9e std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::hece1ba50a44bba0e + 158
13  servo                           0x000000010ffbf9f0 std::thread::local::{{impl}}::with<core::cell::Cell<usize>,closure,core::result::Result<(), Box<Any>>> + 208 (local.rs:206)
14  servo                           0x000000010ffbf85a std::panicking::try<(),std::panic::AssertUnwindSafe<closure>> + 122 (panicking.rs:235)
15  servo                           0x000000010ffbf799 std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,()> + 73 (panic.rs:307)
16  servo                           0x000000010ffbf648 std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h3fde998fdda1412b + 312
17  servo                           0x000000010ffc01dd alloc::boxed::{{impl}}::call_box<(),closure> + 77 (boxed.rs:544)
18  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
19  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
20  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
21  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 13:: ImageCacheThread
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767
2   servo                           0x0000000111b8dec9 std::thread::park::h64c43444d3bbf238 + 297
3   servo                           0x0000000111b9e2e0 std::sync::mpsc::select::Select::wait::h02f8a8034ad0eeb3 + 288
4   servo                           0x000000011022ba10 net::image_cache_thread::Receivers::recv::hf0b7895cde291184 + 432
5   servo                           0x000000011025bff2 net::image_cache_thread::ImageCache::run::hc353f58fdf992d51 + 2274
6   servo                           0x000000011029cf82 net::image_cache_thread::new_image_cache_thread::_$u7b$$u7b$closure$u7d$$u7d$::h9afb473bbac2f524 + 178
7   servo                           0x000000011029ce94 _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::hd5da528a04092c56 + 148
8   servo                           0x000000011029cddd std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h4af36a0d916ab909 + 77
9   servo                           0x000000011029d4e5 std::panicking::try::call::h2fdc74ca5e8c0119 + 21
10  servo                           0x0000000111bacbdc __rust_try + 12
11  servo                           0x000000011029cd3e std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::h30a7bf59ea519255 + 158
12  servo                           0x000000011029cc90 _$LT$std..thread..local..LocalKey$LT$T$GT$$GT$::with::he4bb858a181e992f + 208
13  servo                           0x000000011029cade std::panicking::try::h28063ea69c2ca348 + 222
14  servo                           0x000000011029c9bb std::panic::catch_unwind::h9ebce2ac7849eaed + 155
15  servo                           0x000000011029c818 std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::hec762b6323f2b812 + 376
16  servo                           0x000000011029d6fd _$LT$F$u20$as$u20$alloc..boxed..FnBox$LT$A$GT$$GT$::call_box::h90d2b3f8e3d24cec + 125
17  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
18  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
19  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
20  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 14:: FontCacheThread
0   libsystem_kernel.dylib          0x00007fff9026af72 mach_msg_trap + 10
1   libsystem_kernel.dylib          0x00007fff9026a3b3 mach_msg + 55
2   servo                           0x0000000111a607b3 ipc_channel::platform::macos::select::h3e27b5cad5402db6 + 675
3   servo                           0x0000000111a600d1 ipc_channel::platform::macos::MachReceiver::recv_with_blocking_mode::h38675809999a4142 + 65
4   servo                           0x0000000111a5c8fe ipc_channel::platform::macos::MachReceiver::recv::hc772b032a3f18042 + 30
5   servo                           0x0000000110fb6f1f ipc_channel::ipc::{{impl}}::recv<gfx::font_cache_thread::Command> + 47 (ipc.rs:73)
6   servo                           0x0000000110fb5431 gfx::font_cache_thread::{{impl}}::run + 145 (font_cache_thread.rs:163)
7   servo                           0x00000001110115e5 gfx::font_cache_thread::{{impl}}::new::{{closure}} + 709 (font_cache_thread.rs:410)
8   servo                           0x00000001110112d8 std::panic::{{impl}}::call_once<(),closure> + 168 (panic.rs:251)
9   servo                           0x0000000111011216 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h7409be0386f147d5 + 86
10  servo                           0x0000000111011bc5 std::panicking::try::call<closure> + 21 (panicking.rs:271)
11  servo                           0x0000000111bacbdc __rust_try + 12
12  servo                           0x000000011101116e std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::h06dc41e8b9afb6fb + 158
13  servo                           0x00000001110110c0 std::thread::local::{{impl}}::with<core::cell::Cell<usize>,closure,core::result::Result<(), Box<Any>>> + 208 (local.rs:206)
14  servo                           0x0000000111010ef8 std::panicking::try<(),std::panic::AssertUnwindSafe<closure>> + 248 (panicking.rs:235)
15  servo                           0x0000000111010db2 std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,()> + 178 (panic.rs:307)
16  servo                           0x0000000111010bf7 std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h0f6903993680a896 + 391
17  servo                           0x0000000111011dc1 alloc::boxed::{{impl}}::call_box<(),closure> + 97 (boxed.rs:544)
18  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
19  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
20  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
21  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 15:: Constellation
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767
2   servo                           0x0000000111b8dec9 std::thread::park::h64c43444d3bbf238 + 297
3   servo                           0x0000000111b9e2e0 std::sync::mpsc::select::Select::wait::h02f8a8034ad0eeb3 + 288
4   servo                           0x000000010de6c503 constellation::constellation::{{impl}}::handle_request<script_layout_interface::message::Msg,layout_thread::LayoutThread,script::script_thread::ScriptThread> + 547 (<std macros>:6)
5   servo                           0x000000010de67386 constellation::constellation::{{impl}}::run<script_layout_interface::message::Msg,layout_thread::LayoutThread,script::script_thread::ScriptThread> + 70 (constellation.rs:390)
6   servo                           0x000000010ddd157a _$LT$constellation..constellation..Constellation$LT$Message$C$$u20$LTF$C$$u20$STF$GT$$GT$::start::_$u7b$$u7b$closure$u7d$$u7d$::hd6210ebf2830a8dc + 4858
7   servo                           0x000000010ddd0228 std::panic::{{impl}}::call_once<(),closure> + 136 (panic.rs:251)
8   servo                           0x000000010ddd017c std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h9b8fd4f779b72972 + 92
9   servo                           0x000000010ddd1bb5 std::panicking::try::call<closure> + 21 (panicking.rs:271)
10  servo                           0x0000000111bacbdc __rust_try + 12
11  servo                           0x000000010ddcfe0e std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::he2d82a6e81c29884 + 158
12  servo                           0x000000010ddcfcf0 std::thread::local::{{impl}}::with<core::cell::Cell<usize>,closure,core::result::Result<(), Box<Any>>> + 208 (local.rs:206)
13  servo                           0x000000010ddcfb20 std::panicking::try<(),std::panic::AssertUnwindSafe<closure>> + 192 (panicking.rs:235)
14  servo                           0x000000010ddcf9ff std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,()> + 143 (panic.rs:307)
15  servo                           0x000000010ddcf85d std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::he6e59797a75a2975 + 349
16  servo                           0x000000010ddd1f58 alloc::boxed::{{impl}}::call_box<(),closure> + 104 (boxed.rs:544)
17  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
18  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
19  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
20  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 16:
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767
2   servo                           0x0000000111b8dec9 std::thread::park::h64c43444d3bbf238 + 297
3   servo                           0x0000000111b9e000 std::sync::mpsc::blocking::WaitToken::wait::hb941be4e59b860e4 + 48
4   servo                           0x000000011098d89f _$LT$std..sync..mpsc..oneshot..Packet$LT$T$GT$$GT$::recv::h6d1cfb05d81c02ab + 431
5   servo                           0x000000011098cf46 _$LT$std..sync..mpsc..Receiver$LT$T$GT$$GT$::recv::hf2c6f76a9ea979c3 + 198
6   servo                           0x000000011098a0ed compositing::delayed_composition::DelayedCompositionTimer::run::h0ad770bb42423e98 + 77
7   servo                           0x00000001109896b6 compositing::delayed_composition::DelayedCompositionTimerProxy::new::_$u7b$$u7b$closure$u7d$$u7d$::h5a410a50476cdd8e + 150
8   servo                           0x00000001109895de _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h71259a07c589fe4b + 126
9   servo                           0x0000000110989547 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h63db8719fdb7dbdb + 71
10  servo                           0x0000000110989be5 std::panicking::try::call::h558863ede63102d6 + 21
11  servo                           0x0000000111bacbdc __rust_try + 12
12  servo                           0x000000011098924e std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::hd620e28a614adc2d + 158
13  servo                           0x0000000110989130 _$LT$std..thread..local..LocalKey$LT$T$GT$$GT$::with::hbf78a740edb46f96 + 208
14  servo                           0x0000000110988f89 std::panicking::try::hc98fe502dc6a4aa3 + 185
15  servo                           0x0000000110988e95 std::panic::catch_unwind::h39f9f326a47aae16 + 133
16  servo                           0x0000000110988d08 std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::hd1a3f254f5f9d3b3 + 360
17  servo                           0x0000000110989f41 _$LT$F$u20$as$u20$alloc..boxed..FnBox$LT$A$GT$$GT$::call_box::h5804ae0db9594279 + 113
18  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
19  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
20  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
21  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 17:: TimerScheduler
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767
2   servo                           0x0000000111ba08dc std::sys::condvar::Condvar::wait_timeout::h26167a9e822e997d + 188
3   servo                           0x0000000111b8e44e std::thread::park_timeout::he72b5af46bc5f43f + 350
4   servo                           0x000000010e10ba0b constellation::timer_scheduler::TimerScheduler::start::_$u7b$$u7b$closure$u7d$$u7d$::h7c7b857199ca5a35 + 1355
5   servo                           0x000000010e10b486 _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h6d0aca9466b270b8 + 86
6   servo                           0x000000010e10b414 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h14a9afd539e5adb2 + 68
7   servo                           0x000000010e10c055 std::panicking::try::call::h45e27f1fc3a11159 + 21
8   servo                           0x0000000111bacbdc __rust_try + 12
9   servo                           0x000000010e10b11e std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::h67b0e9c95042819c + 158
10  servo                           0x000000010e10b000 _$LT$std..thread..local..LocalKey$LT$T$GT$$GT$::with::hcccb158e1b5eabb1 + 208
11  servo                           0x000000010e10ae69 std::panicking::try::h41b60dba079e5403 + 153
12  servo                           0x000000010e10ad8d std::panic::catch_unwind::ha8e134e1d51ccfe2 + 93
13  servo                           0x000000010e10ac2a std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h4282b232c98640f3 + 330
14  servo                           0x000000010e10c2a9 _$LT$F$u20$as$u20$alloc..boxed..FnBox$LT$A$GT$$GT$::call_box::h0f8b604d70e14b3c + 89
15  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
16  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
17  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
18  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 18:: TimerProxy
0   libsystem_kernel.dylib          0x00007fff9026af72 mach_msg_trap + 10
1   libsystem_kernel.dylib          0x00007fff9026a3b3 mach_msg + 55
2   servo                           0x0000000111a607b3 ipc_channel::platform::macos::select::h3e27b5cad5402db6 + 675
3   servo                           0x0000000111a600d1 ipc_channel::platform::macos::MachReceiver::recv_with_blocking_mode::h38675809999a4142 + 65
4   servo                           0x0000000111a5c8fe ipc_channel::platform::macos::MachReceiver::recv::hc772b032a3f18042 + 30
5   servo                           0x000000010e11527f _$LT$ipc_channel..ipc..IpcReceiver$LT$T$GT$$GT$::recv::h8885361505b5057f + 47
6   servo                           0x000000010e114830 constellation::timer_scheduler::TimerScheduler::start::_$u7b$$u7b$closure$u7d$$u7d$::hae4aeb1a98f65857 + 304
7   servo                           0x000000010e1146ca _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::hdadf092d4849ce3b + 106
8   servo                           0x000000010e114644 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::hb6043e78c3369046 + 68
9   servo                           0x000000010e114fc5 std::panicking::try::call::h8e8574b0f8ff6ffc + 21
10  servo                           0x0000000111bacbdc __rust_try + 12
11  servo                           0x000000010e1145ae std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::h18c3937fa9af4d8f + 158
12  servo                           0x000000010e114500 _$LT$std..thread..local..LocalKey$LT$T$GT$$GT$::with::hcc1e05da42aefff0 + 208
13  servo                           0x000000010e114365 std::panicking::try::hc40ead20a5be849e + 165
14  servo                           0x000000010e114281 std::panic::catch_unwind::h20163c8ec5b5b421 + 113
15  servo                           0x000000010e114109 std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h128800e9933c8569 + 345
16  servo                           0x000000010e1151c5 _$LT$F$u20$as$u20$alloc..boxed..FnBox$LT$A$GT$$GT$::call_box::h6fce3f99b46d6173 + 101
17  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
18  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
19  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
20  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 19:
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767
2   servo                           0x0000000111b8dec9 std::thread::park::h64c43444d3bbf238 + 297
3   servo                           0x0000000111b9e000 std::sync::mpsc::blocking::WaitToken::wait::hb941be4e59b860e4 + 48
4   servo                           0x000000011031ec6f std::sync::mpsc::oneshot::{{impl}}::recv<Box<FnBox>> + 431 (oneshot.rs:156)
5   servo                           0x000000011031e246 std::sync::mpsc::{{impl}}::recv<Box<FnBox>> + 198 (mod.rs:855)
6   servo                           0x000000011031ccff threadpool::spawn_in_pool::{{closure}} + 735 (lib.rs:304)
7   servo                           0x000000011031c9d9 std::panic::{{impl}}::call_once<(),closure> + 169 (panic.rs:251)
8   servo                           0x000000011031c916 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h9a14b8e0afeda039 + 86
9   servo                           0x000000011031d485 std::panicking::try::call<closure> + 21 (panicking.rs:271)
10  servo                           0x0000000111bacbdc __rust_try + 12
11  servo                           0x000000011031c5ae std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::he326f32c10457adb + 158
12  servo                           0x000000011031c490 std::thread::local::{{impl}}::with<core::cell::Cell<usize>,closure,core::result::Result<(), Box<Any>>> + 208 (local.rs:206)
13  servo                           0x000000011031c2cd std::panicking::try<(),std::panic::AssertUnwindSafe<closure>> + 237 (panicking.rs:235)
14  servo                           0x000000011031c193 std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,()> + 179 (panic.rs:307)
15  servo                           0x000000011031bfd6 std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h932ff782482c8563 + 390
16  servo                           0x000000011031d821 alloc::boxed::{{impl}}::call_box<(),closure> + 97 (boxed.rs:544)
17  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
18  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
19  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
20  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 20:
0   libsystem_kernel.dylib          0x00007fff90270de6 __psynch_mutexwait + 10
1   libsystem_pthread.dylib         0x00007fff90295e4a _pthread_mutex_lock_wait + 89
2   servo                           0x000000011031de46 std::sync::mutex::{{impl}}::lock<std::sync::mpsc::Receiver<Box<FnBox>>> + 38 (mutex.rs:244)
3   servo                           0x000000011031ccb6 threadpool::spawn_in_pool::{{closure}} + 662 (lib.rs:303)
4   servo                           0x000000011031c9d9 std::panic::{{impl}}::call_once<(),closure> + 169 (panic.rs:251)
5   servo                           0x000000011031c916 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h9a14b8e0afeda039 + 86
6   servo                           0x000000011031d485 std::panicking::try::call<closure> + 21 (panicking.rs:271)
7   servo                           0x0000000111bacbdc __rust_try + 12
8   servo                           0x000000011031c5ae std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::he326f32c10457adb + 158
9   servo                           0x000000011031c490 std::thread::local::{{impl}}::with<core::cell::Cell<usize>,closure,core::result::Result<(), Box<Any>>> + 208 (local.rs:206)
10  servo                           0x000000011031c2cd std::panicking::try<(),std::panic::AssertUnwindSafe<closure>> + 237 (panicking.rs:235)
11  servo                           0x000000011031c193 std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,()> + 179 (panic.rs:307)
12  servo                           0x000000011031bfd6 std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h932ff782482c8563 + 390
13  servo                           0x000000011031d821 alloc::boxed::{{impl}}::call_box<(),closure> + 97 (boxed.rs:544)
14  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
15  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
16  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
17  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 21:
0   libsystem_kernel.dylib          0x00007fff90270de6 __psynch_mutexwait + 10
1   libsystem_pthread.dylib         0x00007fff90295e4a _pthread_mutex_lock_wait + 89
2   servo                           0x000000011031de46 std::sync::mutex::{{impl}}::lock<std::sync::mpsc::Receiver<Box<FnBox>>> + 38 (mutex.rs:244)
3   servo                           0x000000011031ccb6 threadpool::spawn_in_pool::{{closure}} + 662 (lib.rs:303)
4   servo                           0x000000011031c9d9 std::panic::{{impl}}::call_once<(),closure> + 169 (panic.rs:251)
5   servo                           0x000000011031c916 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h9a14b8e0afeda039 + 86
6   servo                           0x000000011031d485 std::panicking::try::call<closure> + 21 (panicking.rs:271)
7   servo                           0x0000000111bacbdc __rust_try + 12
8   servo                           0x000000011031c5ae std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::he326f32c10457adb + 158
9   servo                           0x000000011031c490 std::thread::local::{{impl}}::with<core::cell::Cell<usize>,closure,core::result::Result<(), Box<Any>>> + 208 (local.rs:206)
10  servo                           0x000000011031c2cd std::panicking::try<(),std::panic::AssertUnwindSafe<closure>> + 237 (panicking.rs:235)
11  servo                           0x000000011031c193 std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,()> + 179 (panic.rs:307)
12  servo                           0x000000011031bfd6 std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h932ff782482c8563 + 390
13  servo                           0x000000011031d821 alloc::boxed::{{impl}}::call_box<(),closure> + 97 (boxed.rs:544)
14  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
15  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
16  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
17  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 22:
0   libsystem_kernel.dylib          0x00007fff90270de6 __psynch_mutexwait + 10
1   libsystem_pthread.dylib         0x00007fff90295e4a _pthread_mutex_lock_wait + 89
2   servo                           0x000000011031de46 std::sync::mutex::{{impl}}::lock<std::sync::mpsc::Receiver<Box<FnBox>>> + 38 (mutex.rs:244)
3   servo                           0x000000011031ccb6 threadpool::spawn_in_pool::{{closure}} + 662 (lib.rs:303)
4   servo                           0x000000011031c9d9 std::panic::{{impl}}::call_once<(),closure> + 169 (panic.rs:251)
5   servo                           0x000000011031c916 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h9a14b8e0afeda039 + 86
6   servo                           0x000000011031d485 std::panicking::try::call<closure> + 21 (panicking.rs:271)
7   servo                           0x0000000111bacbdc __rust_try + 12
8   servo                           0x000000011031c5ae std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::he326f32c10457adb + 158
9   servo                           0x000000011031c490 std::thread::local::{{impl}}::with<core::cell::Cell<usize>,closure,core::result::Result<(), Box<Any>>> + 208 (local.rs:206)
10  servo                           0x000000011031c2cd std::panicking::try<(),std::panic::AssertUnwindSafe<closure>> + 237 (panicking.rs:235)
11  servo                           0x000000011031c193 std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,()> + 179 (panic.rs:307)
12  servo                           0x000000011031bfd6 std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h932ff782482c8563 + 390
13  servo                           0x000000011031d821 alloc::boxed::{{impl}}::call_box<(),closure> + 97 (boxed.rs:544)
14  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
15  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
16  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
17  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 23:
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767
2   servo                           0x0000000111b8dec9 std::thread::park::h64c43444d3bbf238 + 297
3   servo                           0x0000000111b9e000 std::sync::mpsc::blocking::WaitToken::wait::hb941be4e59b860e4 + 48
4   servo                           0x00000001110a69cf _$LT$std..sync..mpsc..oneshot..Packet$LT$T$GT$$GT$::recv::h1c3b634b4566fe7e + 431
5   servo                           0x00000001110a5f86 _$LT$std..sync..mpsc..Receiver$LT$T$GT$$GT$::recv::h62a67004435fb238 + 198
6   servo                           0x00000001110a5bc2 gfx::paint_thread::WorkerThreadProxy::painted_tile_buffer::hafaae815aba6efc0 + 66
7   servo                           0x000000010df9927a _$LT$gfx..paint_thread..PaintThread$LT$C$GT$$GT$::paint::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::hf9078fdc8191aa1f + 122
8   servo                           0x000000010df991ed core::ops::impls::{{impl}}::call_once<(usize),closure> + 29 (ops.rs:2009)
9   servo                           0x000000010df991a2 core::option::{{impl}}::map<usize,Box<layers::layers::LayerBuffer>,&mut closure> + 82 (option.rs:385)
10  servo                           0x000000010df99140 core::iter::{{impl}}::next<Box<layers::layers::LayerBuffer>,core::ops::Range<usize>,closure> + 48 (mod.rs:897)
11  servo                           0x000000010df99770 collections::vec::{{impl}}::extend_desugared<Box<layers::layers::LayerBuffer>,core::iter::Map<core::ops::Range<usize>, closure>> + 112 (vec.rs:1417)
12  servo                           0x000000010df9904f collections::vec::{{impl}}::from_iter<Box<layers::layers::LayerBuffer>,core::iter::Map<core::ops::Range<usize>, closure>> + 767 (vec.rs:1325)
13  servo                           0x000000010df98d3a core::iter::iterator::Iterator::collect<core::iter::Map<core::ops::Range<usize>, closure>,collections::vec::Vec<Box<layers::layers::LayerBuffer>>> + 74 (iterator.rs:1208)
14  servo                           0x000000010df96c09 _$LT$gfx..paint_thread..PaintThread$LT$C$GT$$GT$::paint::_$u7b$$u7b$closure$u7d$$u7d$::h9508240b6e466c40 + 1673
15  servo                           0x000000010df96438 profile_traits::time::profile<(),closure> + 280 (time.rs:108)
16  servo                           0x000000010df962c5 gfx::paint_thread::{{impl}}::paint<Box<CompositorProxy>> + 245 (paint_thread.rs:506)
17  servo                           0x000000010df78fa8 gfx::paint_thread::{{impl}}::start<Box<CompositorProxy>> + 4216 (paint_thread.rs:449)
18  servo                           0x000000010df77f25 _$LT$gfx..paint_thread..PaintThread$LT$C$GT$$GT$::create::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::hb7d3f1543f52bc9a + 37
19  servo                           0x000000010df723d2 profile_traits::mem::{{impl}}::run_with_memory_reporting<closure,fn(profile_traits::mem::ReportsChan) -> gfx_traits::ChromeToPaintMsg,gfx_traits::ChromeToPaintMsg,std::sync::mpsc::Sender<gfx_traits::ChromeToPaintMsg>> + 690 (mem.rs:59)
20  servo                           0x000000010df65b98 _$LT$gfx..paint_thread..PaintThread$LT$C$GT$$GT$::create::_$u7b$$u7b$closure$u7d$$u7d$::h6f0e2794712b7078 + 1480
21  servo                           0x000000010df61f6f util::thread::spawn_named_with_send_on_panic::_$u7b$$u7b$closure$u7d$$u7d$::h42183bc7ac008e34 + 495
22  servo                           0x000000010df61d28 std::panic::{{impl}}::call_once<(),closure> + 136 (panic.rs:251)
23  servo                           0x000000010df61c7c std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h3ddd6a6ce7cc4993 + 92
24  servo                           0x000000010df62525 std::panicking::try::call<closure> + 21 (panicking.rs:271)
25  servo                           0x0000000111bacbdc __rust_try + 12
26  servo                           0x000000010df61bce std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::h595a3db3165d85db + 158
27  servo                           0x000000010df61b20 std::thread::local::{{impl}}::with<core::cell::Cell<usize>,closure,core::result::Result<(), Box<Any>>> + 208 (local.rs:206)
28  servo                           0x000000010df61950 std::panicking::try<(),std::panic::AssertUnwindSafe<closure>> + 192 (panicking.rs:235)
29  servo                           0x000000010df6182f std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,()> + 143 (panic.rs:307)
30  servo                           0x000000010df6168d std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h43137265b1d3d897 + 349
31  servo                           0x000000010df62728 alloc::boxed::{{impl}}::call_box<(),closure> + 104 (boxed.rs:544)
32  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
33  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
34  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
35  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 24 Crashed:
0   libsystem_kernel.dylib          0x00007fff90270f06 __pthread_kill + 10
1   libsystem_pthread.dylib         0x00007fff902984ec pthread_kill + 90
2   libsystem_c.dylib               0x00007fff9e0bc6e7 abort + 129
3   libsystem_c.dylib               0x00007fff9e0bc85e abort_report_np + 181
4   libsystem_c.dylib               0x00007fff9e0e2a14 __chk_fail + 48
5   libsystem_c.dylib               0x00007fff9e0e29e4 __chk_fail_overflow + 16
6   libsystem_c.dylib               0x00007fff9e0e2d9b __strcat_chk + 121
7   servo                           0x0000000111be61d4 tinyfd_messageBox + 196
8   servo                           0x00000001102a0a6e tinyfiledialogs::message_box + 830 (lib.rs:59)
9   servo                           0x00000001102a14da tinyfiledialogs::message_box_ok::h4cb5cfae3ddb9949 + 186 (lib.rs:87)
10  servo                           0x000000010f3689a1 script::dom::window::display_alert_dialog::h26a6ecf4341dd89c + 49
11  servo                           0x000000010f36abca _$LT$script..dom..window..Window$u20$as$u20$script..dom..bindings..codegen..Bindings..WindowBinding..WindowMethods$GT$::Alert::had3c7b4be3801045 + 1082
12  servo                           0x000000010ec1a3ce script::dom::bindings::codegen::Bindings::WindowBinding::alert::_$u7b$$u7b$closure$u7d$$u7d$::h4aa0781fd42bbbfd + 606
13  servo                           0x000000010ec1a4a9 extern$u20$$u22$rust.call$u22$$u20$fn$LP$$u5b$closure$SP$$u2f$Users$u2f$larsberg$u2f$servo$u2f$target$u2f$debug$u2f$build$u2f$script.fb6f140000bfd9ef$u2f$out$u2f$Bindings$u2f$WindowBinding.rs.830.55.$u20$857.11$u20$this.$RF$$BP$const$u20$dom..window..Window$C$$u20$args.$RF$$BP$const$u20$js..jsapi..JSJitMethodCallArgs$C$$u20$cx.$RF$$BP$mut$u20$js..jsapi..JSContext$u5d$$C$$u20$$LP$$RP$$RP$$u20$.$GT$$u20$bool::once_shim.193052::h579f69cc8c509a5b + 9
14  servo                           0x000000010ec1a163 _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::hdb87f6e9f3244f78 + 67
15  servo                           0x000000010ec1a104 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h0ba1318ec9db1de9 + 68
16  servo                           0x000000010ec1a735 std::panicking::try::call::h041a8af6c4493b67 + 21
17  servo                           0x0000000111bacbdc __rust_try + 12
18  servo                           0x000000010ec1a06e std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::hbc778e100543d076 + 158
19  servo                           0x000000010ec19fc0 _$LT$std..thread..local..LocalKey$LT$T$GT$$GT$::with::h8531748f57dcc5e8 + 208
20  servo                           0x000000010ec19e54 std::panicking::try::hf33bf1ec6af71fa8 + 132
21  servo                           0x000000010ec19dba std::panic::catch_unwind::hd48082bba42e22b7 + 74
22  servo                           0x000000010ec19bd8 script::dom::bindings::codegen::Bindings::WindowBinding::alert::he998321f7db0847f + 72
23  servo                           0x000000011032fed1 CallJitMethodOp + 241
24  servo                           0x000000010f3f51c7 script::dom::bindings::utils::generic_call::h1db15b0685737ace + 1447
25  servo                           0x000000010f3f620c script::dom::bindings::utils::generic_method::hdf51219b6072865d + 44
26  servo                           0x0000000110763351 js::Invoke(JSContext*, JS::CallArgs const&, js::MaybeConstruct) + 897 (jscntxtinlines.h:236)

Thread 25:
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767
2   servo                           0x0000000111b8dec9 std::thread::park::h64c43444d3bbf238 + 297
3   servo                           0x0000000111b9e2e0 std::sync::mpsc::select::Select::wait::h02f8a8034ad0eeb3 + 288
4   servo                           0x000000010e1d1447 layout_thread::{{impl}}::handle_request + 615 (<std macros>:6)
5   servo                           0x000000010e185ac2 layout_thread::{{impl}}::start + 370 (lib.rs:480)
6   servo                           0x000000010e1858f6 layout_thread::{{impl}}::create::{{closure}}::{{closure}} + 118 (lib.rs:271)
7   servo                           0x000000010e17c650 profile_traits::mem::{{impl}}::run_with_memory_reporting<closure,fn(profile_traits::mem::ReportsChan) -> script_layout_interface::message::Msg,script_layout_interface::message::Msg,std::sync::mpsc::Sender<script_layout_interface::message::Msg>> + 912 (mem.rs:59)
8   servo                           0x000000010e151167 layout_thread::{{impl}}::create::{{closure}} + 2071 (lib.rs:270)
9   servo                           0x000000010e1496af util::thread::spawn_named_with_send_on_panic::_$u7b$$u7b$closure$u7d$$u7d$::h6592ad6ab656fca9 + 495
10  servo                           0x000000010e149468 std::panic::{{impl}}::call_once<(),closure> + 136 (panic.rs:251)
11  servo                           0x000000010e1493bc std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h838a28a09aa57222 + 92
12  servo                           0x000000010e149c65 std::panicking::try::call<closure> + 21 (panicking.rs:271)
13  servo                           0x0000000111bacbdc __rust_try + 12
14  servo                           0x000000010e14904e std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::h4f484816e4a56520 + 158
15  servo                           0x000000010e148f30 std::thread::local::{{impl}}::with<core::cell::Cell<usize>,closure,core::result::Result<(), Box<Any>>> + 208 (local.rs:206)
16  servo                           0x000000010e148d60 std::panicking::try<(),std::panic::AssertUnwindSafe<closure>> + 192 (panicking.rs:235)
17  servo                           0x000000010e148c3f std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,()> + 143 (panic.rs:307)
18  servo                           0x000000010e148a9d std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h74cf32b6a8aabf6d + 349
19  servo                           0x000000010e149ec8 alloc::boxed::{{impl}}::call_box<(),closure> + 104 (boxed.rs:544)
20  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
21  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
22  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
23  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 26:: LayoutWorker worker 1/6
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767
2   servo                           0x0000000111b8dec9 std::thread::park::h64c43444d3bbf238 + 297
3   servo                           0x0000000111b9e000 std::sync::mpsc::blocking::WaitToken::wait::hb941be4e59b860e4 + 48
4   servo                           0x000000010e199d2d std::sync::mpsc::stream::{{impl}}::recv<style::workqueue::WorkerMsg<layout::context::SharedLayoutContext, style::parallel::WorkQueueData>> + 733 (stream.rs:194)
5   servo                           0x000000010e197e8a std::sync::mpsc::{{impl}}::recv<style::workqueue::WorkerMsg<layout::context::SharedLayoutContext, style::parallel::WorkQueueData>> + 330 (mod.rs:863)
6   servo                           0x000000010e197216 style::workqueue::{{impl}}::start<layout::context::SharedLayoutContext,style::parallel::WorkQueueData> + 118 (workqueue.rs:111)
7   servo                           0x000000010e1968f2 _$LT$style..workqueue..WorkQueue$LT$QueueData$C$$u20$WorkData$GT$$GT$::new::_$u7b$$u7b$closure$u7d$$u7d$::h1536c6e86aeedfab + 226
8   servo                           0x000000010e1967c0 std::panic::{{impl}}::call_once<(),closure> + 160 (panic.rs:251)
9   servo                           0x000000010e196709 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h19c5d8f5bdb890a5 + 89
10  servo                           0x000000010e196e85 std::panicking::try::call<closure> + 21 (panicking.rs:271)
11  servo                           0x0000000111bacbdc __rust_try + 12
12  servo                           0x000000010e19665e std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::ha54bcaaa3b5bd6e6 + 158
13  servo                           0x000000010e1965b0 std::thread::local::{{impl}}::with<core::cell::Cell<usize>,closure,core::result::Result<(), Box<Any>>> + 208 (local.rs:206)
14  servo                           0x000000010e1963ea std::panicking::try<(),std::panic::AssertUnwindSafe<closure>> + 202 (panicking.rs:235)
15  servo                           0x000000010e1962cf std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,()> + 159 (panic.rs:307)
16  servo                           0x000000010e19611f std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h806e13f084333413 + 367
17  servo                           0x000000010e1970a5 alloc::boxed::{{impl}}::call_box<(),closure> + 133 (boxed.rs:544)
18  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
19  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
20  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
21  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 27:: LayoutWorker worker 2/6
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767
2   servo                           0x0000000111b8dec9 std::thread::park::h64c43444d3bbf238 + 297
3   servo                           0x0000000111b9e000 std::sync::mpsc::blocking::WaitToken::wait::hb941be4e59b860e4 + 48
4   servo                           0x000000010e199d2d std::sync::mpsc::stream::{{impl}}::recv<style::workqueue::WorkerMsg<layout::context::SharedLayoutContext, style::parallel::WorkQueueData>> + 733 (stream.rs:194)
5   servo                           0x000000010e197e8a std::sync::mpsc::{{impl}}::recv<style::workqueue::WorkerMsg<layout::context::SharedLayoutContext, style::parallel::WorkQueueData>> + 330 (mod.rs:863)
6   servo                           0x000000010e197216 style::workqueue::{{impl}}::start<layout::context::SharedLayoutContext,style::parallel::WorkQueueData> + 118 (workqueue.rs:111)
7   servo                           0x000000010e1968f2 _$LT$style..workqueue..WorkQueue$LT$QueueData$C$$u20$WorkData$GT$$GT$::new::_$u7b$$u7b$closure$u7d$$u7d$::h1536c6e86aeedfab + 226
8   servo                           0x000000010e1967c0 std::panic::{{impl}}::call_once<(),closure> + 160 (panic.rs:251)
9   servo                           0x000000010e196709 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h19c5d8f5bdb890a5 + 89
10  servo                           0x000000010e196e85 std::panicking::try::call<closure> + 21 (panicking.rs:271)
11  servo                           0x0000000111bacbdc __rust_try + 12
12  servo                           0x000000010e19665e std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::ha54bcaaa3b5bd6e6 + 158
13  servo                           0x000000010e1965b0 std::thread::local::{{impl}}::with<core::cell::Cell<usize>,closure,core::result::Result<(), Box<Any>>> + 208 (local.rs:206)
14  servo                           0x000000010e1963ea std::panicking::try<(),std::panic::AssertUnwindSafe<closure>> + 202 (panicking.rs:235)
15  servo                           0x000000010e1962cf std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,()> + 159 (panic.rs:307)
16  servo                           0x000000010e19611f std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h806e13f084333413 + 367
17  servo                           0x000000010e1970a5 alloc::boxed::{{impl}}::call_box<(),closure> + 133 (boxed.rs:544)
18  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
19  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
20  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
21  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 28:: LayoutWorker worker 3/6
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767
2   servo                           0x0000000111b8dec9 std::thread::park::h64c43444d3bbf238 + 297
3   servo                           0x0000000111b9e000 std::sync::mpsc::blocking::WaitToken::wait::hb941be4e59b860e4 + 48
4   servo                           0x000000010e199d2d std::sync::mpsc::stream::{{impl}}::recv<style::workqueue::WorkerMsg<layout::context::SharedLayoutContext, style::parallel::WorkQueueData>> + 733 (stream.rs:194)
5   servo                           0x000000010e197e8a std::sync::mpsc::{{impl}}::recv<style::workqueue::WorkerMsg<layout::context::SharedLayoutContext, style::parallel::WorkQueueData>> + 330 (mod.rs:863)
6   servo                           0x000000010e197216 style::workqueue::{{impl}}::start<layout::context::SharedLayoutContext,style::parallel::WorkQueueData> + 118 (workqueue.rs:111)
7   servo                           0x000000010e1968f2 _$LT$style..workqueue..WorkQueue$LT$QueueData$C$$u20$WorkData$GT$$GT$::new::_$u7b$$u7b$closure$u7d$$u7d$::h1536c6e86aeedfab + 226
8   servo                           0x000000010e1967c0 std::panic::{{impl}}::call_once<(),closure> + 160 (panic.rs:251)
9   servo                           0x000000010e196709 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h19c5d8f5bdb890a5 + 89
10  servo                           0x000000010e196e85 std::panicking::try::call<closure> + 21 (panicking.rs:271)
11  servo                           0x0000000111bacbdc __rust_try + 12
12  servo                           0x000000010e19665e std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::ha54bcaaa3b5bd6e6 + 158
13  servo                           0x000000010e1965b0 std::thread::local::{{impl}}::with<core::cell::Cell<usize>,closure,core::result::Result<(), Box<Any>>> + 208 (local.rs:206)
14  servo                           0x000000010e1963ea std::panicking::try<(),std::panic::AssertUnwindSafe<closure>> + 202 (panicking.rs:235)
15  servo                           0x000000010e1962cf std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,()> + 159 (panic.rs:307)
16  servo                           0x000000010e19611f std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h806e13f084333413 + 367
17  servo                           0x000000010e1970a5 alloc::boxed::{{impl}}::call_box<(),closure> + 133 (boxed.rs:544)
18  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
19  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
20  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
21  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 29:: LayoutWorker worker 4/6
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767
2   servo                           0x0000000111b8dec9 std::thread::park::h64c43444d3bbf238 + 297
3   servo                           0x0000000111b9e000 std::sync::mpsc::blocking::WaitToken::wait::hb941be4e59b860e4 + 48
4   servo                           0x000000010e199d2d std::sync::mpsc::stream::{{impl}}::recv<style::workqueue::WorkerMsg<layout::context::SharedLayoutContext, style::parallel::WorkQueueData>> + 733 (stream.rs:194)
5   servo                           0x000000010e197e8a std::sync::mpsc::{{impl}}::recv<style::workqueue::WorkerMsg<layout::context::SharedLayoutContext, style::parallel::WorkQueueData>> + 330 (mod.rs:863)
6   servo                           0x000000010e197216 style::workqueue::{{impl}}::start<layout::context::SharedLayoutContext,style::parallel::WorkQueueData> + 118 (workqueue.rs:111)
7   servo                           0x000000010e1968f2 _$LT$style..workqueue..WorkQueue$LT$QueueData$C$$u20$WorkData$GT$$GT$::new::_$u7b$$u7b$closure$u7d$$u7d$::h1536c6e86aeedfab + 226
8   servo                           0x000000010e1967c0 std::panic::{{impl}}::call_once<(),closure> + 160 (panic.rs:251)
9   servo                           0x000000010e196709 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h19c5d8f5bdb890a5 + 89
10  servo                           0x000000010e196e85 std::panicking::try::call<closure> + 21 (panicking.rs:271)
11  servo                           0x0000000111bacbdc __rust_try + 12
12  servo                           0x000000010e19665e std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::ha54bcaaa3b5bd6e6 + 158
13  servo                           0x000000010e1965b0 std::thread::local::{{impl}}::with<core::cell::Cell<usize>,closure,core::result::Result<(), Box<Any>>> + 208 (local.rs:206)
14  servo                           0x000000010e1963ea std::panicking::try<(),std::panic::AssertUnwindSafe<closure>> + 202 (panicking.rs:235)
15  servo                           0x000000010e1962cf std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,()> + 159 (panic.rs:307)
16  servo                           0x000000010e19611f std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h806e13f084333413 + 367
17  servo                           0x000000010e1970a5 alloc::boxed::{{impl}}::call_box<(),closure> + 133 (boxed.rs:544)
18  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
19  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
20  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
21  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 30:: LayoutWorker worker 5/6
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767
2   servo                           0x0000000111b8dec9 std::thread::park::h64c43444d3bbf238 + 297
3   servo                           0x0000000111b9e000 std::sync::mpsc::blocking::WaitToken::wait::hb941be4e59b860e4 + 48
4   servo                           0x000000010e199d2d std::sync::mpsc::stream::{{impl}}::recv<style::workqueue::WorkerMsg<layout::context::SharedLayoutContext, style::parallel::WorkQueueData>> + 733 (stream.rs:194)
5   servo                           0x000000010e197e8a std::sync::mpsc::{{impl}}::recv<style::workqueue::WorkerMsg<layout::context::SharedLayoutContext, style::parallel::WorkQueueData>> + 330 (mod.rs:863)
6   servo                           0x000000010e197216 style::workqueue::{{impl}}::start<layout::context::SharedLayoutContext,style::parallel::WorkQueueData> + 118 (workqueue.rs:111)
7   servo                           0x000000010e1968f2 _$LT$style..workqueue..WorkQueue$LT$QueueData$C$$u20$WorkData$GT$$GT$::new::_$u7b$$u7b$closure$u7d$$u7d$::h1536c6e86aeedfab + 226
8   servo                           0x000000010e1967c0 std::panic::{{impl}}::call_once<(),closure> + 160 (panic.rs:251)
9   servo                           0x000000010e196709 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h19c5d8f5bdb890a5 + 89
10  servo                           0x000000010e196e85 std::panicking::try::call<closure> + 21 (panicking.rs:271)
11  servo                           0x0000000111bacbdc __rust_try + 12
12  servo                           0x000000010e19665e std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::ha54bcaaa3b5bd6e6 + 158
13  servo                           0x000000010e1965b0 std::thread::local::{{impl}}::with<core::cell::Cell<usize>,closure,core::result::Result<(), Box<Any>>> + 208 (local.rs:206)
14  servo                           0x000000010e1963ea std::panicking::try<(),std::panic::AssertUnwindSafe<closure>> + 202 (panicking.rs:235)
15  servo                           0x000000010e1962cf std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,()> + 159 (panic.rs:307)
16  servo                           0x000000010e19611f std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h806e13f084333413 + 367
17  servo                           0x000000010e1970a5 alloc::boxed::{{impl}}::call_box<(),closure> + 133 (boxed.rs:544)
18  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
19  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
20  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
21  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 31:: LayoutWorker worker 6/6
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767
2   servo                           0x0000000111b8dec9 std::thread::park::h64c43444d3bbf238 + 297
3   servo                           0x0000000111b9e000 std::sync::mpsc::blocking::WaitToken::wait::hb941be4e59b860e4 + 48
4   servo                           0x000000010e199d2d std::sync::mpsc::stream::{{impl}}::recv<style::workqueue::WorkerMsg<layout::context::SharedLayoutContext, style::parallel::WorkQueueData>> + 733 (stream.rs:194)
5   servo                           0x000000010e197e8a std::sync::mpsc::{{impl}}::recv<style::workqueue::WorkerMsg<layout::context::SharedLayoutContext, style::parallel::WorkQueueData>> + 330 (mod.rs:863)
6   servo                           0x000000010e197216 style::workqueue::{{impl}}::start<layout::context::SharedLayoutContext,style::parallel::WorkQueueData> + 118 (workqueue.rs:111)
7   servo                           0x000000010e1968f2 _$LT$style..workqueue..WorkQueue$LT$QueueData$C$$u20$WorkData$GT$$GT$::new::_$u7b$$u7b$closure$u7d$$u7d$::h1536c6e86aeedfab + 226
8   servo                           0x000000010e1967c0 std::panic::{{impl}}::call_once<(),closure> + 160 (panic.rs:251)
9   servo                           0x000000010e196709 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h19c5d8f5bdb890a5 + 89
10  servo                           0x000000010e196e85 std::panicking::try::call<closure> + 21 (panicking.rs:271)
11  servo                           0x0000000111bacbdc __rust_try + 12
12  servo                           0x000000010e19665e std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::ha54bcaaa3b5bd6e6 + 158
13  servo                           0x000000010e1965b0 std::thread::local::{{impl}}::with<core::cell::Cell<usize>,closure,core::result::Result<(), Box<Any>>> + 208 (local.rs:206)
14  servo                           0x000000010e1963ea std::panicking::try<(),std::panic::AssertUnwindSafe<closure>> + 202 (panicking.rs:235)
15  servo                           0x000000010e1962cf std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,()> + 159 (panic.rs:307)
16  servo                           0x000000010e19611f std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h806e13f084333413 + 367
17  servo                           0x000000010e1970a5 alloc::boxed::{{impl}}::call_box<(),closure> + 133 (boxed.rs:544)
18  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
19  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
20  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
21  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 32:: JS Helper
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767

Thread 33:: JS Helper
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767

Thread 34:: JS Helper
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767

Thread 35:: JS Helper
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767

Thread 36:: JS Helper
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767

Thread 37:: JS Helper
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767

Thread 38:: JS Helper
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767

Thread 39:: JS Helper
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767

Thread 40:: JS Helper
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767

Thread 41:: JS Helper
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767

Thread 42:: JS Helper
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767

Thread 43:: JS Helper
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767

Thread 44:
0   libsystem_kernel.dylib          0x00007fff9026af72 mach_msg_trap + 10
1   libsystem_kernel.dylib          0x00007fff9026a3b3 mach_msg + 55
2   servo                           0x00000001103f779d MachExceptionHandlerThread(void*) + 61 (WasmSignalHandlers.cpp:970)

Thread 45:
0   libsystem_kernel.dylib          0x00007fff902715e2 __workq_kernreturn + 10
1   libsystem_pthread.dylib         0x00007fff90295578 _pthread_wqthread + 1283
2   libsystem_pthread.dylib         0x00007fff90293341 start_wqthread + 13

Thread 46:
0   libsystem_kernel.dylib          0x00007fff902715e2 __workq_kernreturn + 10
1   libsystem_pthread.dylib         0x00007fff90295578 _pthread_wqthread + 1283
2   libsystem_pthread.dylib         0x00007fff90293341 start_wqthread + 13

Thread 47:
0   libsystem_kernel.dylib          0x00007fff902715e2 __workq_kernreturn + 10
1   libsystem_pthread.dylib         0x00007fff90295578 _pthread_wqthread + 1283
2   libsystem_pthread.dylib         0x00007fff90293341 start_wqthread + 13

Thread 48:
0   libsystem_kernel.dylib          0x00007fff9026af72 mach_msg_trap + 10
1   libsystem_kernel.dylib          0x00007fff9026a3b3 mach_msg + 55
2   servo                           0x00000001103f779d MachExceptionHandlerThread(void*) + 61 (WasmSignalHandlers.cpp:970)

Thread 49:: com.apple.NSEventThread
0   libsystem_kernel.dylib          0x00007fff9026af72 mach_msg_trap + 10
1   libsystem_kernel.dylib          0x00007fff9026a3b3 mach_msg + 55
2   com.apple.CoreFoundation        0x00007fff9e2ca1c4 __CFRunLoopServiceMachPort + 212
3   com.apple.CoreFoundation        0x00007fff9e2c968c __CFRunLoopRun + 1356
4   com.apple.CoreFoundation        0x00007fff9e2c8ed8 CFRunLoopRunSpecific + 296
5   com.apple.AppKit                0x00007fff9e8b7d95 _NSEventThread + 149
6   libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
7   libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
8   libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 50:
0   libsystem_kernel.dylib          0x00007fff902715e2 __workq_kernreturn + 10
1   libsystem_pthread.dylib         0x00007fff90295578 _pthread_wqthread + 1283
2   libsystem_pthread.dylib         0x00007fff90293341 start_wqthread + 13

Thread 51:

Thread 52:: PaintWorker
0   servo                           0x00000001118b5b14 core::iter::range::{{impl}}::next<usize> + 132 (range.rs:398)
1   servo                           0x00000001118b5741 core::slice::{{impl}}::clone_from_slice<u8> + 305 (slice.rs:501)
2   servo                           0x00000001118b55fd collections::slice::{{impl}}::clone_from_slice<u8> + 45 (slice.rs:867)
3   servo                           0x00000001118b55a7 io_surface::IOSurface::upload::hc91bafe2b264201e + 183 (lib.rs:163)
4   servo                           0x00000001116578a3 layers::platform::macos::surface::IOSurfaceNativeSurface::upload::hbcb7cc22ebdd5658 + 67
5   servo                           0x0000000111657c4a layers::platform::surface::NativeSurface::upload::h5453dd5d15ab5ca9 + 106
6   servo                           0x00000001110ba3a6 gfx::paint_thread::WorkerThread::optimize_and_paint_tile::_$u7b$$u7b$closure$u7d$$u7d$::hd8518f8a49b63683 + 326
7   servo                           0x00000001110ba1f9 azure::azure_hl::DataSourceSurface::with_data::h0a5576fa7f4bd9f1 + 201
8   servo                           0x00000001110b5a9c gfx::paint_thread::WorkerThread::optimize_and_paint_tile::h5622c0a0c8b65d88 + 2604
9   servo                           0x00000001110a1cac gfx::paint_thread::WorkerThread::main::ha620cb6b35e7a00a + 428
10  servo                           0x00000001110a0fd5 gfx::paint_thread::WorkerThreadProxy::spawn::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h458cc19443e78be0 + 341
11  servo                           0x00000001110a0e34 _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h986b0a10dc6afb99 + 148
12  servo                           0x00000001110a0d89 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::hb23f2e99d3c10a6b + 89
13  servo                           0x00000001110a15c5 std::panicking::try::call::hd5c6a720698140f0 + 21
14  servo                           0x0000000111bacbdc __rust_try + 12
15  servo                           0x00000001110a0cde std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::h4f125dcb5075d180 + 158
16  servo                           0x00000001110a0c30 _$LT$std..thread..local..LocalKey$LT$T$GT$$GT$::with::ha40daba339de23bd + 208
17  servo                           0x00000001110a0a5b std::panicking::try::h3e3c92be33ec9274 + 187
18  servo                           0x00000001110a0943 std::panic::catch_unwind::h2fd909e1d28b9bdb + 147
19  servo                           0x00000001110a07a3 std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::heebb08c44fab6d5b + 355
20  servo                           0x00000001110a17d6 _$LT$F$u20$as$u20$alloc..boxed..FnBox$LT$A$GT$$GT$::call_box::h266d4b81342091d9 + 118
21  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
22  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
23  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
24  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 53:: PaintWorker
0   servo                           0x00000001118b5ae6 core::iter::range::{{impl}}::next<usize> + 86 (range.rs:397)
1   servo                           0x00000001118b5741 core::slice::{{impl}}::clone_from_slice<u8> + 305 (slice.rs:501)
2   servo                           0x00000001118b55fd collections::slice::{{impl}}::clone_from_slice<u8> + 45 (slice.rs:867)
3   servo                           0x00000001118b55a7 io_surface::IOSurface::upload::hc91bafe2b264201e + 183 (lib.rs:163)
4   servo                           0x00000001116578a3 layers::platform::macos::surface::IOSurfaceNativeSurface::upload::hbcb7cc22ebdd5658 + 67
5   servo                           0x0000000111657c4a layers::platform::surface::NativeSurface::upload::h5453dd5d15ab5ca9 + 106
6   servo                           0x00000001110ba3a6 gfx::paint_thread::WorkerThread::optimize_and_paint_tile::_$u7b$$u7b$closure$u7d$$u7d$::hd8518f8a49b63683 + 326
7   servo                           0x00000001110ba1f9 azure::azure_hl::DataSourceSurface::with_data::h0a5576fa7f4bd9f1 + 201
8   servo                           0x00000001110b5a9c gfx::paint_thread::WorkerThread::optimize_and_paint_tile::h5622c0a0c8b65d88 + 2604
9   servo                           0x00000001110a1cac gfx::paint_thread::WorkerThread::main::ha620cb6b35e7a00a + 428
10  servo                           0x00000001110a0fd5 gfx::paint_thread::WorkerThreadProxy::spawn::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h458cc19443e78be0 + 341
11  servo                           0x00000001110a0e34 _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h986b0a10dc6afb99 + 148
12  servo                           0x00000001110a0d89 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::hb23f2e99d3c10a6b + 89
13  servo                           0x00000001110a15c5 std::panicking::try::call::hd5c6a720698140f0 + 21
14  servo                           0x0000000111bacbdc __rust_try + 12
15  servo                           0x00000001110a0cde std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::h4f125dcb5075d180 + 158
16  servo                           0x00000001110a0c30 _$LT$std..thread..local..LocalKey$LT$T$GT$$GT$::with::ha40daba339de23bd + 208
17  servo                           0x00000001110a0a5b std::panicking::try::h3e3c92be33ec9274 + 187
18  servo                           0x00000001110a0943 std::panic::catch_unwind::h2fd909e1d28b9bdb + 147
19  servo                           0x00000001110a07a3 std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::heebb08c44fab6d5b + 355
20  servo                           0x00000001110a17d6 _$LT$F$u20$as$u20$alloc..boxed..FnBox$LT$A$GT$$GT$::call_box::h266d4b81342091d9 + 118
21  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
22  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
23  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
24  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 54:: PaintWorker
0   servo                           0x00000001118b5b29 core::iter::range::{{impl}}::next<usize> + 153 (range.rs:399)
1   servo                           0x00000001118b5741 core::slice::{{impl}}::clone_from_slice<u8> + 305 (slice.rs:501)
2   servo                           0x00000001118b55fd collections::slice::{{impl}}::clone_from_slice<u8> + 45 (slice.rs:867)
3   servo                           0x00000001118b55a7 io_surface::IOSurface::upload::hc91bafe2b264201e + 183 (lib.rs:163)
4   servo                           0x00000001116578a3 layers::platform::macos::surface::IOSurfaceNativeSurface::upload::hbcb7cc22ebdd5658 + 67
5   servo                           0x0000000111657c4a layers::platform::surface::NativeSurface::upload::h5453dd5d15ab5ca9 + 106
6   servo                           0x00000001110ba3a6 gfx::paint_thread::WorkerThread::optimize_and_paint_tile::_$u7b$$u7b$closure$u7d$$u7d$::hd8518f8a49b63683 + 326
7   servo                           0x00000001110ba1f9 azure::azure_hl::DataSourceSurface::with_data::h0a5576fa7f4bd9f1 + 201
8   servo                           0x00000001110b5a9c gfx::paint_thread::WorkerThread::optimize_and_paint_tile::h5622c0a0c8b65d88 + 2604
9   servo                           0x00000001110a1cac gfx::paint_thread::WorkerThread::main::ha620cb6b35e7a00a + 428
10  servo                           0x00000001110a0fd5 gfx::paint_thread::WorkerThreadProxy::spawn::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h458cc19443e78be0 + 341
11  servo                           0x00000001110a0e34 _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h986b0a10dc6afb99 + 148
12  servo                           0x00000001110a0d89 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::hb23f2e99d3c10a6b + 89
13  servo                           0x00000001110a15c5 std::panicking::try::call::hd5c6a720698140f0 + 21
14  servo                           0x0000000111bacbdc __rust_try + 12
15  servo                           0x00000001110a0cde std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::h4f125dcb5075d180 + 158
16  servo                           0x00000001110a0c30 _$LT$std..thread..local..LocalKey$LT$T$GT$$GT$::with::ha40daba339de23bd + 208
17  servo                           0x00000001110a0a5b std::panicking::try::h3e3c92be33ec9274 + 187
18  servo                           0x00000001110a0943 std::panic::catch_unwind::h2fd909e1d28b9bdb + 147
19  servo                           0x00000001110a07a3 std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::heebb08c44fab6d5b + 355
20  servo                           0x00000001110a17d6 _$LT$F$u20$as$u20$alloc..boxed..FnBox$LT$A$GT$$GT$::call_box::h266d4b81342091d9 + 118
21  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
22  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
23  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
24  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 55:: PaintWorker
0   servo                           0x00000001118b585c core::slice::{{impl}}::clone_from_slice<u8> + 588 (clone.rs:107)
1   servo                           0x00000001118b55fd collections::slice::{{impl}}::clone_from_slice<u8> + 45 (slice.rs:867)
2   servo                           0x00000001118b55a7 io_surface::IOSurface::upload::hc91bafe2b264201e + 183 (lib.rs:163)
3   servo                           0x00000001116578a3 layers::platform::macos::surface::IOSurfaceNativeSurface::upload::hbcb7cc22ebdd5658 + 67
4   servo                           0x0000000111657c4a layers::platform::surface::NativeSurface::upload::h5453dd5d15ab5ca9 + 106
5   servo                           0x00000001110ba3a6 gfx::paint_thread::WorkerThread::optimize_and_paint_tile::_$u7b$$u7b$closure$u7d$$u7d$::hd8518f8a49b63683 + 326
6   servo                           0x00000001110ba1f9 azure::azure_hl::DataSourceSurface::with_data::h0a5576fa7f4bd9f1 + 201
7   servo                           0x00000001110b5a9c gfx::paint_thread::WorkerThread::optimize_and_paint_tile::h5622c0a0c8b65d88 + 2604
8   servo                           0x00000001110a1cac gfx::paint_thread::WorkerThread::main::ha620cb6b35e7a00a + 428
9   servo                           0x00000001110a0fd5 gfx::paint_thread::WorkerThreadProxy::spawn::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h458cc19443e78be0 + 341
10  servo                           0x00000001110a0e34 _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h986b0a10dc6afb99 + 148
11  servo                           0x00000001110a0d89 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::hb23f2e99d3c10a6b + 89
12  servo                           0x00000001110a15c5 std::panicking::try::call::hd5c6a720698140f0 + 21
13  servo                           0x0000000111bacbdc __rust_try + 12
14  servo                           0x00000001110a0cde std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::h4f125dcb5075d180 + 158
15  servo                           0x00000001110a0c30 _$LT$std..thread..local..LocalKey$LT$T$GT$$GT$::with::ha40daba339de23bd + 208
16  servo                           0x00000001110a0a5b std::panicking::try::h3e3c92be33ec9274 + 187
17  servo                           0x00000001110a0943 std::panic::catch_unwind::h2fd909e1d28b9bdb + 147
18  servo                           0x00000001110a07a3 std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::heebb08c44fab6d5b + 355
19  servo                           0x00000001110a17d6 _$LT$F$u20$as$u20$alloc..boxed..FnBox$LT$A$GT$$GT$::call_box::h266d4b81342091d9 + 118
20  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
21  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
22  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
23  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 56:: PaintWorker
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767
2   servo                           0x0000000111b8dec9 std::thread::park::h64c43444d3bbf238 + 297
3   servo                           0x0000000111b9e000 std::sync::mpsc::blocking::WaitToken::wait::hb941be4e59b860e4 + 48
4   servo                           0x00000001110afb9c _$LT$std..sync..mpsc..stream..Packet$LT$T$GT$$GT$::recv::h7f169fdb80fe39e8 + 828
5   servo                           0x00000001110adc56 _$LT$std..sync..mpsc..Receiver$LT$T$GT$$GT$::recv::ha58b688d034d1c44 + 342
6   servo                           0x00000001110a1b4b gfx::paint_thread::WorkerThread::main::ha620cb6b35e7a00a + 75
7   servo                           0x00000001110a0fd5 gfx::paint_thread::WorkerThreadProxy::spawn::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h458cc19443e78be0 + 341
8   servo                           0x00000001110a0e34 _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h986b0a10dc6afb99 + 148
9   servo                           0x00000001110a0d89 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::hb23f2e99d3c10a6b + 89
10  servo                           0x00000001110a15c5 std::panicking::try::call::hd5c6a720698140f0 + 21
11  servo                           0x0000000111bacbdc __rust_try + 12
12  servo                           0x00000001110a0cde std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::h4f125dcb5075d180 + 158
13  servo                           0x00000001110a0c30 _$LT$std..thread..local..LocalKey$LT$T$GT$$GT$::with::ha40daba339de23bd + 208
14  servo                           0x00000001110a0a5b std::panicking::try::h3e3c92be33ec9274 + 187
15  servo                           0x00000001110a0943 std::panic::catch_unwind::h2fd909e1d28b9bdb + 147
16  servo                           0x00000001110a07a3 std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::heebb08c44fab6d5b + 355
17  servo                           0x00000001110a17d6 _$LT$F$u20$as$u20$alloc..boxed..FnBox$LT$A$GT$$GT$::call_box::h266d4b81342091d9 + 118
18  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
19  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
20  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
21  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 57:: PaintWorker
0   libsystem_kernel.dylib          0x00007fff90270db6 __psynch_cvwait + 10
1   libsystem_pthread.dylib         0x00007fff90296728 _pthread_cond_wait + 767
2   servo                           0x0000000111b8dec9 std::thread::park::h64c43444d3bbf238 + 297
3   servo                           0x0000000111b9e000 std::sync::mpsc::blocking::WaitToken::wait::hb941be4e59b860e4 + 48
4   servo                           0x00000001110afb9c _$LT$std..sync..mpsc..stream..Packet$LT$T$GT$$GT$::recv::h7f169fdb80fe39e8 + 828
5   servo                           0x00000001110adc56 _$LT$std..sync..mpsc..Receiver$LT$T$GT$$GT$::recv::ha58b688d034d1c44 + 342
6   servo                           0x00000001110a1b4b gfx::paint_thread::WorkerThread::main::ha620cb6b35e7a00a + 75
7   servo                           0x00000001110a0fd5 gfx::paint_thread::WorkerThreadProxy::spawn::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h458cc19443e78be0 + 341
8   servo                           0x00000001110a0e34 _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h986b0a10dc6afb99 + 148
9   servo                           0x00000001110a0d89 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::hb23f2e99d3c10a6b + 89
10  servo                           0x00000001110a15c5 std::panicking::try::call::hd5c6a720698140f0 + 21
11  servo                           0x0000000111bacbdc __rust_try + 12
12  servo                           0x00000001110a0cde std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::h4f125dcb5075d180 + 158
13  servo                           0x00000001110a0c30 _$LT$std..thread..local..LocalKey$LT$T$GT$$GT$::with::ha40daba339de23bd + 208
14  servo                           0x00000001110a0a5b std::panicking::try::h3e3c92be33ec9274 + 187
15  servo                           0x00000001110a0943 std::panic::catch_unwind::h2fd909e1d28b9bdb + 147
16  servo                           0x00000001110a07a3 std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::heebb08c44fab6d5b + 355
17  servo                           0x00000001110a17d6 _$LT$F$u20$as$u20$alloc..boxed..FnBox$LT$A$GT$$GT$::call_box::h266d4b81342091d9 + 118
18  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
19  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
20  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
21  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 58:
0   libsystem_kernel.dylib          0x00007fff9026af72 mach_msg_trap + 10
1   libsystem_kernel.dylib          0x00007fff9026a3b3 mach_msg + 55
2   servo                           0x0000000111a607b3 ipc_channel::platform::macos::select::h3e27b5cad5402db6 + 675
3   servo                           0x0000000111a600d1 ipc_channel::platform::macos::MachReceiver::recv_with_blocking_mode::h38675809999a4142 + 65
4   servo                           0x0000000111a5c8fe ipc_channel::platform::macos::MachReceiver::recv::hc772b032a3f18042 + 30
5   servo                           0x000000011009410f _$LT$ipc_channel..ipc..IpcReceiver$LT$T$GT$$GT$::recv::h5cd795fe70093c07 + 47
6   servo                           0x000000011008e0fd net::http_loader::load::hc456a32263ae25f6 + 1789
7   servo                           0x000000011008c205 net::http_loader::load_for_consumer::h44099eafe2c0e667 + 741
8   servo                           0x000000011008be22 net::http_loader::factory::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::hb6bf75c76ef6dd06 + 818
9   servo                           0x000000011008b90c profile_traits::time::profile::hf2b06f77f0b553f7 + 300
10  servo                           0x000000011008af16 net::http_loader::factory::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::haeb9391593e8aaf6 + 1030
11  servo                           0x000000011008aab8 _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::hd69d48cce360379e + 136
12  servo                           0x000000011008aa0c std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::hb45c59a41d925a21 + 92
13  servo                           0x000000011008b545 std::panicking::try::call::ha9be7ecca392eb71 + 21
14  servo                           0x0000000111bacbdc __rust_try + 12
15  servo                           0x000000011008a95e std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::he97a62f39d305f0c + 158
16  servo                           0x000000011008a8b0 _$LT$std..thread..local..LocalKey$LT$T$GT$$GT$::with::h00f9b42161d4eb2f + 208
17  servo                           0x000000011008a6e0 std::panicking::try::h5e20b8f23045a949 + 192
18  servo                           0x000000011008a5bf std::panic::catch_unwind::h2443a6fc0d4b472d + 143
19  servo                           0x000000011008a41d std::thread::Builder::spawn::_$u7b$$u7b$closure$u7d$$u7d$::h3b5ca97687caaa69 + 349
20  servo                           0x000000011008b748 _$LT$F$u20$as$u20$alloc..boxed..FnBox$LT$A$GT$$GT$::call_box::h43bbfcb77c159297 + 104
21  servo                           0x0000000111ba70e9 std::sys::thread::Thread::new::thread_start::h9c883b6d445ece46 + 57
22  libsystem_pthread.dylib         0x00007fff9029599d _pthread_body + 131
23  libsystem_pthread.dylib         0x00007fff9029591a _pthread_start + 168
24  libsystem_pthread.dylib         0x00007fff90293351 thread_start + 13

Thread 24 crashed with X86 Thread State (64-bit):
  rax: 0x0000000000000000  rbx: 0x0000000000000006  rcx: 0x000070000284aff8  rdx: 0x0000000000000000
  rdi: 0x000000000000ae3b  rsi: 0x0000000000000006  rbp: 0x000070000284b020  rsp: 0x000070000284aff8
   r8: 0x0000000000000000   r9: 0x0000000000000000  r10: 0x0000000008000000  r11: 0x0000000000000206
  r12: 0x0000000000000027  r13: 0x0000000000000400  r14: 0x0000700002856000  r15: 0x000070000284b7c0
  rip: 0x00007fff90270f06  rfl: 0x0000000000000206  cr2: 0x00007fff7ce3f008

Logical CPU:     0
Error Code:      0x02000148
Trap Number:     133


Binary Images:
       0x10dc86000 -        0x112d65fdf +servo (0.0.1) <6EEC39EB-616F-3727-9177-3241E162D489> /Users/USER/*/servo
       0x11e345000 -        0x11e3f9fff  com.apple.AMDRadeonX4000GLDriver (1.42.11 - 1.4.2) <ADDB81F0-C216-3972-8B0B-1D24745018E6> /System/Library/Extensions/AMDRadeonX4000GLDriver.bundle/Contents/MacOS/AMDRadeonX4000GLDriver
       0x11e411000 -        0x11e862fff  ATIRadeonX4000SCLib.dylib (1.42.11) <C1EC06B5-971B-3E1B-8B4C-775A85527B86> /System/Library/Extensions/AMDRadeonX4000GLDriver.bundle/Contents/MacOS/ATIRadeonX4000SCLib.dylib
       0x1224fb000 -        0x1224fbfe7 +cl_kernels (???) <73AC1A4F-4015-45A1-9B2A-346FDB9B3088> cl_kernels
       0x123e42000 -        0x123f44ff7  com.apple.AMDMTLBronzeDriver (1.42.11 - 1.4.2) <7E6A2FA4-FF7D-3C5B-B1A9-CCF38EF5193D> /System/Library/Extensions/AMDMTLBronzeDriver.bundle/Contents/MacOS/AMDMTLBronzeDriver
    0x7fff6911f000 -     0x7fff6915625f  dyld (360.22) <A468D85E-D8D6-3461-8C99-49D3B9ACFC63> /usr/lib/dyld
    0x7fff88dc0000 -     0x7fff88dd1ff7  libz.1.dylib (61.20.1) <B3EBB42F-48E3-3287-9F0D-308E04D407AC> /usr/lib/libz.1.dylib
    0x7fff88ddf000 -     0x7fff88df8fff  com.apple.CFOpenDirectory (10.11 - 194) <11F95672-55E0-3F9D-9171-5E8C56AEE948> /System/Library/Frameworks/OpenDirectory.framework/Versions/A/Frameworks/CFOpenDirectory.framework/Versions/A/CFOpenDirectory
    0x7fff89ee7000 -     0x7fff89eecfff  com.apple.DiskArbitration (2.7 - 2.7) <F55902AA-5316-3255-A701-FDED5B553065> /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration
    0x7fff89eed000 -     0x7fff89f16fff  libsystem_info.dylib (477.50.4) <FAA9226D-64DE-3769-A6D8-6CABA4B7FF4D> /usr/lib/system/libsystem_info.dylib
    0x7fff89f17000 -     0x7fff8a0ddfe7  com.apple.ImageIO.framework (3.3.0 - 1450) <18ABA1F4-43EC-3990-9777-C91FD3D6AF71> /System/Library/Frameworks/ImageIO.framework/Versions/A/ImageIO
    0x7fff8aba1000 -     0x7fff8aba4ffb  libScreenReader.dylib (426.42) <16FC79D1-4573-3E90-945F-CBA22D5185FD> /usr/lib/libScreenReader.dylib
    0x7fff8aba7000 -     0x7fff8aba7fff  libOpenScriptingUtil.dylib (169.1) <AD0DAC8A-9849-3077-999F-9AEC6112BDAB> /usr/lib/libOpenScriptingUtil.dylib
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    0x7fff9e150000 -     0x7fff9e23ffff  libxml2.2.dylib (29.7) <32BBF51E-B084-3FC2-AE9C-C008BE84102B> /usr/lib/libxml2.2.dylib
    0x7fff9e240000 -     0x7fff9e6b6fff  com.apple.CoreFoundation (6.9 - 1258.1) <943A1383-DA6A-3DC0-ABCD-D9AEB3D0D34D> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
    0x7fff9e70d000 -     0x7fff9e718fff  com.apple.CrashReporterSupport (10.11 - 718) <05892B57-F2CD-3C84-B984-0417F6B361DB> /System/Library/PrivateFrameworks/CrashReporterSupport.framework/Versions/A/CrashReporterSupport
    0x7fff9e719000 -     0x7fff9f342ff7  com.apple.AppKit (6.9 - 1404.47) <F3411F6E-DD87-34D0-8C68-C69B2205E41D> /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit
    0x7fff9f35a000 -     0x7fff9f35aff7  libunc.dylib (29) <DDB1E947-C775-33B8-B461-63E5EB698F0E> /usr/lib/system/libunc.dylib
    0x7fff9f378000 -     0x7fff9f38cfe3  libCGInterfaces.dylib (317.9) <5079DE4F-3717-32FF-B76A-77F53236D17D> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vImage.framework/Versions/A/Libraries/libCGInterfaces.dylib
    0x7fff9f38d000 -     0x7fff9f395fff  com.apple.CoreServices.FSEvents (1223.10.1 - 1223.10.1) <7F5B7A23-BC1D-3FA9-A9B8-D534F1E1979A> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/FSEvents.framework/Versions/A/FSEvents
    0x7fff9f39c000 -     0x7fff9f4aaff3  com.apple.desktopservices (1.10.3 - 1.10.3) <3A6906D4-C0B8-30D1-B589-0466E5E42B69> /System/Library/PrivateFrameworks/DesktopServicesPriv.framework/Versions/A/DesktopServicesPriv
    0x7fff9f4ab000 -     0x7fff9f4b7fff  com.apple.SpeechRecognitionCore (2.2.7 - 2.2.7) <6BA06290-D4A3-351C-87F9-B61EF61FF055> /System/Library/PrivateFrameworks/SpeechRecognitionCore.framework/Versions/A/SpeechRecognitionCore
    0x7fff9f4b8000 -     0x7fff9f4befff  com.apple.IOAccelerator (205.10 - 205.10) <E46ED853-C2CC-3F29-A7DD-5E9351A2E754> /System/Library/PrivateFrameworks/IOAccelerator.framework/Versions/A/IOAccelerator
    0x7fff9f4bf000 -     0x7fff9f4cafff  libGPUSupportMercury.dylib (12.1) <9D35C668-4F21-31C8-890C-CC1F45905194> /System/Library/PrivateFrameworks/GPUSupport.framework/Versions/A/Libraries/libGPUSupportMercury.dylib

External Modification Summary:
  Calls made by other processes targeting this process:
    task_for_pid: 2
    thread_create: 0
    thread_set_state: 0
  Calls made by this process:
    task_for_pid: 0
    thread_create: 0
    thread_set_state: 0
  Calls made by all processes on this machine:
    task_for_pid: 289529
    thread_create: 0
    thread_set_state: 0

VM Region Summary:
ReadOnly portion of Libraries: Total=397.3M resident=0K(0%) swapped_out_or_unallocated=397.3M(100%)
Writable regions: Total=449.4M written=0K(0%) resident=0K(0%) swapped_out=0K(0%) unallocated=449.4M(100%)

                                VIRTUAL   REGION 
REGION TYPE                        SIZE    COUNT (non-coalesced) 
===========                     =======  ======= 
ATS (font support)                32.1M        9 
ATS (font support) (reserved)        8K        3         reserved VM address space (unallocated)
Accelerate.framework               128K        2 
Activity Tracing                  2048K        2 
CG backing stores                 13.6M        4 
CG image                          16.1M        8 
CG shared images                   240K        7 
CoreAnimation                      220K       12 
CoreUI image data                 1808K       16 
CoreUI image file                  192K        4 
Dispatch continuations            16.0M        2 
IOKit                             12.1M       15 
Image IO                          4096K        2 
Kernel Alloc Once                    8K        3 
MALLOC                           154.5M       27 
MALLOC guard page                   32K        7 
Memory Tag 242                      12K        2 
OpenCL                               8K        2 
OpenGL GLSL                        256K        4 
STACK GUARD                        228K       58 
Stack                            104.0M       61 
Stack (reserved)                   520K        2         reserved VM address space (unallocated)
Stack Guard                       56.0M        3 
VM_ALLOCATE                       72.6M       24 
VM_ALLOCATE (reserved)            4416K       14         reserved VM address space (unallocated)
__DATA                            21.2M      209 
__GLSLBUILTINS                    2588K        2 
__IMAGE                            528K        2 
__LINKEDIT                       179.5M        8 
__TEXT                           217.9M      212 
__UNICODE                          552K        2 
mapped file                       71.4M       18 
shared memory                     16.3M        9 
===========                     =======  ======= 
TOTAL                              1.0G      722 
TOTAL, minus reserved VM space   995.9M      722 

Model: iMac17,1, BootROM IM171.0105.B08, 4 processors, Intel Core i7, 4 GHz, 32 GB, SMC 2.34f2
Graphics: AMD Radeon R9 M395X, AMD Radeon R9 M395X, PCIe, 4096 MB
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x802C, 0x31364B544631473634485A2D314739453220
Memory Module: BANK 0/DIMM1, 8 GB, DDR3, 1600 MHz, 0x859B, 0x43543130323436344246313630422E433136
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x802C, 0x31364B544631473634485A2D314739453220
Memory Module: BANK 1/DIMM1, 8 GB, DDR3, 1600 MHz, 0x859B, 0x43543130323436344246313630422E433136
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x14A), Broadcom BCM43xx 1.0 (7.21.95.175.1a6)
Bluetooth: Version 4.4.5f3 17904, 3 services, 27 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: APPLE HDD ST2000DM001, 2 TB
Serial ATA Device: APPLE SSD SM0128G, 121.33 GB
USB Device: USB 3.0 Bus
USB Device: HL-2270DW series
USB Device: Bluetooth USB Host Controller
USB Device: FaceTime HD Camera (Built-in)
USB Device: Microsoft® 2.4GHz Transceiver v9.0
USB Device: Plantronics .Audio 648 USB
Thunderbolt Bus: iMac, Apple Inc., 28.1
@larsbergstrom
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@larsbergstrom larsbergstrom commented Jul 7, 2016

Here's the crash:


Thread 24 Crashed:
0   libsystem_kernel.dylib          0x00007fff90270f06 __pthread_kill + 10
1   libsystem_pthread.dylib         0x00007fff902984ec pthread_kill + 90
2   libsystem_c.dylib               0x00007fff9e0bc6e7 abort + 129
3   libsystem_c.dylib               0x00007fff9e0bc85e abort_report_np + 181
4   libsystem_c.dylib               0x00007fff9e0e2a14 __chk_fail + 48
5   libsystem_c.dylib               0x00007fff9e0e29e4 __chk_fail_overflow + 16
6   libsystem_c.dylib               0x00007fff9e0e2d9b __strcat_chk + 121
7   servo                           0x0000000111be61d4 tinyfd_messageBox + 196
8   servo                           0x00000001102a0a6e tinyfiledialogs::message_box + 830 (lib.rs:59)
9   servo                           0x00000001102a14da tinyfiledialogs::message_box_ok::h4cb5cfae3ddb9949 + 186 (lib.rs:87)
10  servo                           0x000000010f3689a1 script::dom::window::display_alert_dialog::h26a6ecf4341dd89c + 49
11  servo                           0x000000010f36abca _$LT$script..dom..window..Window$u20$as$u20$script..dom..bindings..codegen..Bindings..WindowBinding..WindowMethods$GT$::Alert::had3c7b4be3801045 + 1082
12  servo                           0x000000010ec1a3ce script::dom::bindings::codegen::Bindings::WindowBinding::alert::_$u7b$$u7b$closure$u7d$$u7d$::h4aa0781fd42bbbfd + 606
13  servo                           0x000000010ec1a4a9 extern$u20$$u22$rust.call$u22$$u20$fn$LP$$u5b$closure$SP$$u2f$Users$u2f$larsberg$u2f$servo$u2f$target$u2f$debug$u2f$build$u2f$script.fb6f140000bfd9ef$u2f$out$u2f$Bindings$u2f$WindowBinding.rs.830.55.$u20$857.11$u20$this.$RF$$BP$const$u20$dom..window..Window$C$$u20$args.$RF$$BP$const$u20$js..jsapi..JSJitMethodCallArgs$C$$u20$cx.$RF$$BP$mut$u20$js..jsapi..JSContext$u5d$$C$$u20$$LP$$RP$$RP$$u20$.$GT$$u20$bool::once_shim.193052::h579f69cc8c509a5b + 9
14  servo                           0x000000010ec1a163 _$LT$std..panic..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::hdb87f6e9f3244f78 + 67
15  servo                           0x000000010ec1a104 std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h0ba1318ec9db1de9 + 68
16  servo                           0x000000010ec1a735 std::panicking::try::call::h041a8af6c4493b67 + 21
17  servo                           0x0000000111bacbdc __rust_try + 12
18  servo                           0x000000010ec1a06e std::panicking::try::_$u7b$$u7b$closure$u7d$$u7d$::hbc778e100543d076 + 158
19  servo                           0x000000010ec19fc0 _$LT$std..thread..local..LocalKey$LT$T$GT$$GT$::with::h8531748f57dcc5e8 + 208
20  servo                           0x000000010ec19e54 std::panicking::try::hf33bf1ec6af71fa8 + 132
21  servo                           0x000000010ec19dba std::panic::catch_unwind::hd48082bba42e22b7 + 74
22  servo                           0x000000010ec19bd8 script::dom::bindings::codegen::Bindings::WindowBinding::alert::he998321f7db0847f + 72
23  servo                           0x000000011032fed1 CallJitMethodOp + 241
24  servo                           0x000000010f3f51c7 script::dom::bindings::utils::generic_call::h1db15b0685737ace + 1447
25  servo                           0x000000010f3f620c script::dom::bindings::utils::generic_method::hdf51219b6072865d + 44
26  servo                           0x0000000110763351 js::Invoke(JSContext*, JS::CallArgs const&, js::MaybeConstruct) + 897 (jscntxtinlines.h:236)
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@jdm jdm commented Jul 7, 2016

That's a known issue with our alert message box implementation that can be avoided via w3c/wptrunner#194.
@larsbergstrom
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@larsbergstrom larsbergstrom commented Jul 7, 2016

mfw Servo's roughly third segfault in the project's history is from somebody calling strcat...

Thanks for tracking it down, @jdm! IT sounds like an updated version of #12223 that moves us from alert to console.log should fix this.

And on IRC, you mentioned that the tinyfiledialogs code is being updated now to remove / harden those calls.
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@jdm jdm commented Jul 7, 2016

I have no idea why this suddenly started being an issue, given that the segfault-y behaviour has been present for months, but buildbot seems much happier with the change.
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@larsbergstrom larsbergstrom commented Jul 7, 2016

Fixed by #12324
This was referenced Jul 7, 2016
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@larsbergstrom larsbergstrom changed the title Recent mac update seems to have left us unable to land anything Segfault in tinyfiledialogs causing test failures as kill races with crash dump reporter Jul 7, 2016
@aneeshusa
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@aneeshusa aneeshusa commented Jul 8, 2016

Thanks for figuring this out while I was at work - I'm just as shocked about strcat still lurking around.

Re: Salt: The only Salt changes I applied were those in servo/saltfs#428. I always tee the Salt output into log files, but both with test=True and after the real highstate finished I looked through the output and IIRC the only changes were the ffmpeg packages, not python or any other package updates. (I don't think we have Salt do auto-updates.) I believe the video PR got retried after that and the changes seemed to be working fine on the builders (except Windows), so I deleted the logs at that point since everything looked OK. Do we want to have a policy about log creation and retention for Salt highstates?
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@larsbergstrom larsbergstrom commented Jul 8, 2016

@aneeshusa No worries! I certainly don't log my salt highstate runs, either, and just look through the output. Perhaps that's something we should think about, given that you, I, and @edunham all run them and may need to pick up after them?

And sorry for the random accusation that it was the highstate; that seemed to be the only thing that had happened at the time that the failure rate went to nearly 100% :-)
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@aneeshusa aneeshusa commented Jul 8, 2016

This is also where using tmux or screen is nice to have the backscroll around for later.
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@aneeshusa aneeshusa commented Jul 8, 2016

I'd be +1 for logging all highstate runs + retention for 2 days (should be more than enough for any issues to pop up).
@aneeshusa aneeshusa mentioned this issue Jul 11, 2016
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