Intermittent CRASH at /_webgl/conformance/ogles/GL/smoothstep/smoothstep_001_to_006.html

[gterzian]

No description provided.

[nox]

Crash log please?

[gterzian]

{"status": "CRASH", "group": "default", "message": null, "stack": null, "subtest": null, "test": "/_webgl/conformance/ogles/GL/smoothstep/smoothstep_001_to_006.html", "line": 207333, "action": "test_result", "expected": "OK"}

in http://build.servo.org/builders/linux-rel-css/builds/9779

[nox]

That's not the crash log. This is the crash log:

  ▶ CRASH [expected OK] /_webgl/conformance/ogles/GL/smoothstep/smoothstep_001_to_006.html
  │ 
  │ VMware, Inc.
  │ softpipe
  │ 3.3 (Core Profile) Mesa 18.1.0-devel
  │ Failed to receive a response from live font cache (thread <unnamed>, at components/gfx/font_cache_thread.rs:547)
  │ stack backtrace:
  │    0:     0x7fe7e3719d3c - backtrace::backtrace::trace::he39339c5d8ea47de
  │    1:     0x7fe7e3719b52 - <backtrace::capture::Backtrace as core::default::Default>::default::h6a5ee221358a8db7
  │    2:     0x7fe7e3719b98 - backtrace::capture::Backtrace::new::h13a591c52babab91
  │    3:     0x7fe7e05df048 - servo::main::{{closure}}::hd33082f0743fc942
  │    4:     0x7fe7e372caf3 - std::panicking::rust_panic_with_hook::h96bd948766a721a4
  │                         at libstd/panicking.rs:481
  │    5:     0x7fe7e1efcef6 - std::panicking::begin_panic::hb56e63e5129c1ed3
  │    6:     0x7fe7e1f1ec54 - <gfx::font_cache_thread::FontCacheThread as gfx::font_context::FontSource>::font_template::h83ed6670093dd6eb
  │    7:     0x7fe7e1b0d19e - <gfx::font_context::FontContext<S>>::font::h4feb01d92663810b
  │    8:     0x7fe7e1baa772 - gfx::font::FontGroup::first::hb7a7756fbd71f174
  │    9:     0x7fe7e1b3522b - layout::text::font_metrics_for_style::hf3e816373aa4d534
  │   10:     0x7fe7e1b2cbbb - layout::inline::InlineFlow::minimum_line_metrics_for_fragments::hbd9b7abf30e33487
  │   11:     0x7fe7e097e059 - <std::thread::local::LocalKey<T>>::with::h103ad03407cc2bd5
  │   12:     0x7fe7e0966e27 - <layout::construct::FlowConstructor<'a, ConcreteThreadSafeLayoutNode>>::build_flow_for_block_starting_with_fragments::hcbca30d4041488b1
  │   13:     0x7fe7e0964352 - <layout::construct::FlowConstructor<'a, ConcreteThreadSafeLayoutNode>>::build_flow_for_block_like::hf46ecf4739c98252
  │   14:     0x7fe7e0963afe - <layout::construct::FlowConstructor<'a, ConcreteThreadSafeLayoutNode>>::build_flow_for_block::hb9a55bdfc31e8e5d
  │   15:     0x7fe7e09512db - <layout::construct::FlowConstructor<'a, ConcreteThreadSafeLayoutNode> as layout::traversal::PostorderNodeMutTraversal<ConcreteThreadSafeLayoutNode>>::process::hdf7b46ba49163c34
  │   16:     0x7fe7e0a19b91 - style::traversal::DomTraversal::handle_postorder_traversal::h645d05475c1fa1c0
  │   17:     0x7fe7e0a2be91 - style::parallel::traverse_nodes::h74e1b95a0be39a4b
  │   18:     0x7fe7e0a1d8d1 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h435a6b9b93c2390f
  │   19:     0x7fe7e0a0f3c7 - _ZN3std9panicking3try7do_call17h65ac0efb746aaef8E.llvm.10946527384906501007
  │   20:     0x7fe7e3755be9 - __rust_maybe_catch_panic
  │                         at libpanic_unwind/lib.rs:103
  │   21:     0x7fe7e09ceb0a - _ZN77_$LT$rayon_core..job..HeapJob$LT$BODY$GT$$u20$as$u20$rayon_core..job..Job$GT$7execute17h9d726cff0fe55c8fE.llvm.17025500866578690285
  │   22:     0x7fe7e36e5820 - rayon_core::registry::WorkerThread::wait_until_cold::ha29edbda9a9d5d0d
  │   23:     0x7fe7e36e68b3 - rayon_core::registry::main_loop::h29e8857635e3a3b3
  │   24:     0x7fe7e36e780b - _ZN3std9panicking3try7do_call17h5eaaf92bc45c41caE.llvm.13187409588727597117
  │   25:     0x7fe7e3755be9 - __rust_maybe_catch_panic
  │                         at libpanic_unwind/lib.rs:103
  │   26:     0x7fe7e36e75ea - <F as alloc::boxed::FnBox<A>>::call_box::hee61022cb74dd49a
  │   27:     0x7fe7e374556a - <alloc::boxed::Box<(dyn alloc::boxed::FnBox<A, Output$u3d$R$GT$$u20$$u2b$$u20$$u27$a$RP$$GT$$u20$as$u20$core..ops..function..FnOnce$LT$A$GT$$GT$::call_once::h91e1a0628cdb6b64
  │                         at /checkout/src/liballoc/boxed.rs:656
  │                          - std::sys_common::thread::start_thread::h8710783cd11c6158
  │                         at libstd/sys_common/thread.rs:24
  │   28:     0x7fe7e372d2c5 - std::sys::unix::thread::Thread::new::thread_start::h8ecb5f3a76b46e8e
  │                         at libstd/sys/unix/thread.rs:90
  │   29:     0x7fe7de96f183 - start_thread
  │   30:     0x7fe7dcbfb03c - clone
  │   31:                0x0 - <unknown>
  │ ERROR 2018-09-12T11:24:54Z: servo: Failed to receive a response from live font cache
  │ assertion failed: !self.Document().needs_reflow() ||
  │     (!for_display && self.Document().needs_paint()) ||
  │     self.window_size.get().is_none() || self.suppress_reflow.get() (thread ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(1) }, at components/script/dom/window.rs:1457)
  │ stack backtrace:
  │    0:     0x7fe7e3719d3c - backtrace::backtrace::trace::he39339c5d8ea47de
  │    1:     0x7fe7e3719b52 - <backtrace::capture::Backtrace as core::default::Default>::default::h6a5ee221358a8db7
  │    2:     0x7fe7e3719b98 - backtrace::capture::Backtrace::new::h13a591c52babab91
  │    3:     0x7fe7e05df048 - servo::main::{{closure}}::hd33082f0743fc942
  │    4:     0x7fe7e372caf3 - std::panicking::rust_panic_with_hook::h96bd948766a721a4
  │                         at libstd/panicking.rs:481
  │    5:     0x7fe7e1655bf6 - std::panicking::begin_panic::h9b0bad17b9c66b05
  │    6:     0x7fe7e14d618b - script::dom::window::Window::reflow::he8590e10e9afc48f
  │    7:     0x7fe7e0abe7e3 - script::script_thread::ScriptThread::handle_msgs::h61008f1f89bf9bac
  │    8:     0x7fe7e0ab9857 - script::script_thread::ScriptThread::start::h219c0ab3d709e2fc
  │    9:     0x7fe7e0faf110 - profile_traits::mem::ProfilerChan::run_with_memory_reporting::h5360021756610b0b
  │   10:     0x7fe7e10f6a59 - std::sys_common::backtrace::__rust_begin_short_backtrace::h1ad67e053f3a01eb
  │   11:     0x7fe7e167a3f5 - _ZN3std9panicking3try7do_call17h8006ccc1d05ba6a1E.llvm.3938877524587727976
  │   12:     0x7fe7e3755be9 - __rust_maybe_catch_panic
  │                         at libpanic_unwind/lib.rs:103
  │   13:     0x7fe7e130c510 - <F as alloc::boxed::FnBox<A>>::call_box::h7337d752f7b9ea95
  │   14:     0x7fe7e374556a - <alloc::boxed::Box<(dyn alloc::boxed::FnBox<A, Output$u3d$R$GT$$u20$$u2b$$u20$$u27$a$RP$$GT$$u20$as$u20$core..ops..function..FnOnce$LT$A$GT$$GT$::call_once::h91e1a0628cdb6b64
  │                         at /checkout/src/liballoc/boxed.rs:656
  │                          - std::sys_common::thread::start_thread::h8710783cd11c6158
  │                         at libstd/sys_common/thread.rs:24
  │   15:     0x7fe7e372d2c5 - std::sys::unix::thread::Thread::new::thread_start::h8ecb5f3a76b46e8e
  │                         at libstd/sys/unix/thread.rs:90
  │   16:     0x7fe7de96f183 - start_thread
  │   17:     0x7fe7dcbfb03c - clone
  │   18:                0x0 - <unknown>
  │ ERROR 2018-09-12T11:24:54Z: servo: assertion failed: !self.Document().needs_reflow() ||
  │     (!for_display && self.Document().needs_paint()) ||
  │     self.window_size.get().is_none() || self.suppress_reflow.get()
  └ Pipeline failed in hard-fail mode.  Crashing!

[nox]

This seems to be #21067.

[gterzian]

Thanks, may I ask where you found it?

[nox]

In http://build.servo.org/builders/linux-rel-css/builds/9779, stdio of step 9.

[jdm]

Closing because the underlying cause is already tracked.