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assertion failed: thread_state::get() == thread_state::LAYOUT #16409

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jdm opened this issue Apr 13, 2017 · 3 comments
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assertion failed: thread_state::get() == thread_state::LAYOUT #16409

jdm opened this issue Apr 13, 2017 · 3 comments
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A-content/css Interacting with CSS from web content (parsing, serializing, introspection) I-panic Servo encounters a panic.

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@jdm
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jdm commented Apr 13, 2017

A common assertion from http://lcamtuf.coredump.cx/transfuzz.html:

ERROR:servo: assertion failed: thread_state::get() == thread_state::LAYOUT
Process 31436 stopped
* thread #89: tid = 0xbc084f, 0x0000000105b0afc4 servo`std::panicking::rust_panic + 4 at panicking.rs:580, stop reason = breakpoint 1.1
    frame #0: 0x0000000105b0afc4 servo`std::panicking::rust_panic + 4 at panicking.rs:580
(lldb) bt
error: need to add support for DW_TAG_base_type '()' encoded with DW_ATE = 0x7, bit_size = 0
error: need to add support for DW_TAG_base_type '()' encoded with DW_ATE = 0x7, bit_size = 0
* thread #89: tid = 0xbc084f, 0x0000000105b0afc4 servo`std::panicking::rust_panic + 4 at panicking.rs:580, stop reason = breakpoint 1.1
  * frame #0: 0x0000000105b0afc4 servo`std::panicking::rust_panic + 4 at panicking.rs:580
    frame #1: 0x0000000105b0af87 servo`std::panicking::rust_panic_with_hook + 439 at panicking.rs:565
    frame #2: 0x0000000101eff1e9 servo`std::panicking::begin_panic<&str>(msg=&str at 0x0000000132e197a8, file_line=0x000000010756c7c8) + 201 at panicking.rs:511
    frame #3: 0x0000000102d075d2 servo`script::dom::element::{{impl}}::insert_selector_flags(self=0x0000000132e1bf00, flags=ElementSelectorFlags at 0x0000000132e19850) + 114 at element.rs:783
    frame #4: 0x0000000102ee1c99 servo`script::layout_wrapper::{{impl}}::set_selector_flags(self=0x0000000132e1bf00, flags=ElementSelectorFlags at 0x0000000132e198c8) + 57 at layout_wrapper.rs:456
    frame #5: 0x00000001016990c9 servo`style::matching::MatchMethods::apply_selector_flags<script::layout_wrapper::ServoLayoutElement>(self=0x0000000132e1bf00, tasks=0x000000011ea89df0, element=0x0000000132e1bf00, flags=ElementSelectorFlags at 0x0000000132e19930) + 249 at matching.rs:884
    frame #6: 0x00000001016984a1 servo`style::matching::MatchMethods::match_primary::{{closure}}<script::layout_wrapper::ServoLayoutElement>(element=0x0000000132e1bf00, flags=ElementSelectorFlags at 0x0000000132e19a68) + 81 at matching.rs:758
    frame #7: 0x0000000101742dc3 servo`selectors::matching::matches_simple_selector<script::layout_wrapper::ServoLayoutElement,closure>(selector=0x000000012ca610d8, element=0x0000000132e1bf00, relations=0x0000000132e1af78, flags_setter=0x0000000132e1bca0) + 323 at matching.rs:418
    frame #8: 0x000000010174c281 servo`selectors::matching::matches_complex_selector_internal::{{closure}}<script::layout_wrapper::ServoLayoutElement,closure>(simple=0x000000012ca610d8) + 65 at matching.rs:256
    frame #9: 0x000000010171905d servo`core::slice::{{impl}}::all::{{closure}}<selectors::parser::SimpleSelector<style::servo::selector_parser::SelectorImpl>,closure>(elt=0x000000012ca610d8) + 45 at mod.rs:1107
    frame #10: 0x00000001015e2e26 servo`core::slice::{{impl}}::search_while<selectors::parser::SimpleSelector<style::servo::selector_parser::SelectorImpl>,bool,closure>(self=0x0000000132e1a300, default=true, g=closure at 0x0000000132e19e30) + 2694 at mod.rs:1198
    frame #11: 0x000000010171883a servo`core::slice::{{impl}}::all<selectors::parser::SimpleSelector<style::servo::selector_parser::SelectorImpl>,closure>(self=0x0000000132e1a300, predicate=closure at 0x0000000132e1a1b0) + 154 at mod.rs:1106
    frame #12: 0x0000000101749ef4 servo`selectors::matching::matches_complex_selector_internal<script::layout_wrapper::ServoLayoutElement,closure>(selector=0x000000012ca63850, element=0x0000000132e1bf00, relations=0x0000000132e1af78, flags_setter=0x0000000132e1bca0) + 212 at matching.rs:255
    frame #13: 0x0000000101746063 servo`selectors::matching::matches_complex_selector<script::layout_wrapper::ServoLayoutElement,closure>(selector=0x000000012ca63850, element=0x0000000132e1bf00, parent_bf=Option<&selectors::bloom::BloomFilter> at 0x0000000132e1a468, relations=0x0000000132e1af78, flags_setter=0x0000000132e1bca0) + 131 at matching.rs:180
    frame #14: 0x000000010168c30e servo`style::stylist::{{impl}}::get_matching_rules<script::layout_wrapper::ServoLayoutElement,collections::vec::Vec<style::stylist::ApplicableDeclarationBlock>,closure>(element=0x0000000132e1bf00, parent_bf=Option<&selectors::bloom::BloomFilter> at 0x0000000132e1a528, rules=&[style::stylist::Rule] at 0x0000000132e1a530, guard=0x000000012e7ffd98, matching_rules=0x0000000132e1bc48, relations=0x0000000132e1af78, flags_setter=0x0000000132e1bca0, cascade_level=AuthorNormal) + 574 at stylist.rs:1139
    frame #15: 0x000000010168e7af servo`style::stylist::{{impl}}::get_matching_rules_from_hash<script::layout_wrapper::ServoLayoutElement,string_cache::atom::Atom<html5ever_atoms::LocalNameStaticSet>,string_cache::atom::Atom<html5ever_atoms::LocalNameStaticSet>,collections::vec::Vec<style::stylist::ApplicableDeclarationBlock>,closure>(element=0x0000000132e1bf00, parent_bf=Option<&selectors::bloom::BloomFilter> at 0x0000000132e1a6b0, hash=0x000000011ea5e408, key=0x000000012d180c18, guard=0x000000012e7ffd98, matching_rules=0x0000000132e1bc48, relations=0x0000000132e1af78, flags_setter=0x0000000132e1bca0, cascade_level=AuthorNormal) + 351 at stylist.rs:1106
    frame #16: 0x000000010168d5d1 servo`style::stylist::{{impl}}::get_all_matching_rules<script::layout_wrapper::ServoLayoutElement,collections::vec::Vec<style::stylist::ApplicableDeclarationBlock>,closure>(self=0x000000011ea5e3c0, element=0x0000000132e1bf00, parent_bf=Option<&selectors::bloom::BloomFilter> at 0x0000000132e1a830, guard=0x000000012e7ffd98, matching_rules_list=0x0000000132e1bc48, relations=0x0000000132e1af78, flags_setter=0x0000000132e1bca0, cascade_level=AuthorNormal) + 1393 at stylist.rs:1020
    frame #17: 0x000000010168ff4e servo`style::stylist::{{impl}}::push_applicable_declarations<script::layout_wrapper::ServoLayoutElement,collections::vec::Vec<style::stylist::ApplicableDeclarationBlock>,closure>(self=0x000000011ea5e310, element=0x0000000132e1bf00, parent_bf=Option<&selectors::bloom::BloomFilter> at 0x0000000132e1ae80, style_attribute=Option<&alloc::arc::Arc<style::shared_lock::Locked<style::properties::declaration_block::PropertyDeclarationBlock>>> at 0x0000000132e1ae88, animation_rules=AnimationRules at 0x0000000132e1ae90, pseudo_element=Option<&style::servo::selector_parser::PseudoElement> at 0x0000000132e1aea0, guards=0x000000012e800418, applicable_declarations=0x0000000132e1bc48, flags_setter=0x0000000132e1bca0) + 3886 at stylist.rs:662
    frame #18: 0x000000010169814a servo`style::matching::MatchMethods::match_primary<script::layout_wrapper::ServoLayoutElement>(self=0x0000000132e1bf00, context=0x0000000132e1c5a0, data=0x000000011e16e408, relations=0x0000000132e1be10) + 538 at matching.rs:762
    frame #19: 0x0000000101698e50 servo`style::matching::MatchMethods::match_and_cascade<script::layout_wrapper::ServoLayoutElement>(self=0x0000000132e1bf00, context=0x0000000132e1c5a0, data=0x000000011e16e408, sharing=Allow) + 96 at matching.rs:702
    frame #20: 0x00000001016a2c50 servo`style::traversal::compute_style<script::layout_wrapper::ServoLayoutElement,layout::traversal::RecalcStyleAndConstructFlows>(_traversal=0x000000012e800410, traversal_data=0x0000000132e1c920, context=0x0000000132e1c5a0, element=ServoLayoutElement at 0x0000000132e1bec8, data=0x0000000132e1c580) + 736 at traversal.rs:710
    frame #21: 0x00000001016a3654 servo`style::traversal::recalc_style_at<script::layout_wrapper::ServoLayoutElement,layout::traversal::RecalcStyleAndConstructFlows>(traversal=0x000000012e800410, traversal_data=0x0000000132e1c920, context=0x0000000132e1c5a0, element=ServoLayoutElement at 0x0000000132e1c108, data=0x0000000132e1c580) + 1268 at traversal.rs:580
    frame #22: 0x000000010153b077 servo`layout::traversal::{{impl}}::process_preorder<script::layout_wrapper::ServoLayoutElement>(self=0x000000012e800410, traversal_data=0x0000000132e1c920, thread_local=0x000000011ea89da0, node=ServoLayoutNode at 0x0000000132e1c538) + 359 at traversal.rs:73
    frame #23: 0x000000010169f012 servo`style::parallel::traverse_nodes<script::layout_wrapper::ServoLayoutElement,layout::traversal::RecalcStyleAndConstructFlows> + 562 at parallel.rs:115
    frame #24: 0x000000010169ede0 servo`style::parallel::traverse_nodes<script::layout_wrapper::ServoLayoutElement,layout::traversal::RecalcStyleAndConstructFlows>(nodes=Vec<style::dom::SendNode<script::layout_wrapper::ServoLayoutNode>> at 0x0000000132e1c6b8, root=OpaqueNode at 0x0000000132e1c6d0, traversal_data=PerLevelTraversalData at 0x0000000132e1c6e0, scope=0x000000012ea05c18, traversal=0x000000012e800410, tls=0x000000012e7feea0) + 640 at parallel.rs:148
    frame #25: 0x000000010169f1d2 servo`style::parallel::traverse_nodes<script::layout_wrapper::ServoLayoutElement,layout::traversal::RecalcStyleAndConstructFlows> + 1010 at parallel.rs:129
    frame #26: 0x000000010169ede0 servo`style::parallel::traverse_nodes<script::layout_wrapper::ServoLayoutElement,layout::traversal::RecalcStyleAndConstructFlows>(nodes=Vec<style::dom::SendNode<script::layout_wrapper::ServoLayoutNode>> at 0x0000000132e1cb48, root=OpaqueNode at 0x0000000132e1cb60, traversal_data=PerLevelTraversalData at 0x0000000132e1cb70, scope=0x000000012ea05c18, traversal=0x000000012e800410, tls=0x000000012e7feea0) + 640 at parallel.rs:148
    frame #27: 0x000000010169f1d2 servo`style::parallel::traverse_nodes<script::layout_wrapper::ServoLayoutElement,layout::traversal::RecalcStyleAndConstructFlows> + 1010 at parallel.rs:129
    frame #28: 0x000000010169ede0 servo`style::parallel::traverse_nodes<script::layout_wrapper::ServoLayoutElement,layout::traversal::RecalcStyleAndConstructFlows>(nodes=Vec<style::dom::SendNode<script::layout_wrapper::ServoLayoutNode>> at 0x0000000132e1cfd8, root=OpaqueNode at 0x0000000132e1cff0, traversal_data=PerLevelTraversalData at 0x0000000132e1d000, scope=0x000000012ea05c18, traversal=0x000000012e800410, tls=0x000000012e7feea0) + 640 at parallel.rs:148
    frame #29: 0x000000010169f1d2 servo`style::parallel::traverse_nodes<script::layout_wrapper::ServoLayoutElement,layout::traversal::RecalcStyleAndConstructFlows> + 1010 at parallel.rs:129
    frame #30: 0x000000010169ede0 servo`style::parallel::traverse_nodes<script::layout_wrapper::ServoLayoutElement,layout::traversal::RecalcStyleAndConstructFlows>(nodes=Vec<style::dom::SendNode<script::layout_wrapper::ServoLayoutNode>> at 0x0000000132e1d468, root=OpaqueNode at 0x0000000132e1d480, traversal_data=PerLevelTraversalData at 0x0000000132e1d490, scope=0x000000012ea05c18, traversal=0x000000012e800410, tls=0x000000012e7feea0) + 640 at parallel.rs:148
    frame #31: 0x000000010169fa8e servo`style::parallel::traverse_nodes::{{closure}}<script::layout_wrapper::ServoLayoutElement,layout::traversal::RecalcStyleAndConstructFlows> + 1008 at parallel.rs:129
    frame #32: 0x000000010169f69e servo`style::parallel::traverse_nodes::{{closure}}<script::layout_wrapper::ServoLayoutElement,layout::traversal::RecalcStyleAndConstructFlows>(scope=0x000000012ea05c18) + 270 at parallel.rs:158
    frame #33: 0x000000010167708b servo`rayon::scope::{{impl}}::execute_job_closure::{{closure}}<closure> + 139 at mod.rs:314
    frame #34: 0x000000010171e959 servo`std::panic::{{impl}}::call_once<(self=AssertUnwindSafe<closure> at 0x0000000132e1dbd0, _args=<unavailable>),closure> + 201 at panic.rs:296
    frame #35: 0x00000001015b5619 servo`std::panicking::try::do_call<std::panic::AssertUnwindSafe<closure>,(data=0x0000000132e1df08)> + 361 at panicking.rs:454
    frame #36: 0x0000000105b0bf7b servo`panic_unwind::__rust_maybe_catch_panic + 27 at lib.rs:98
    frame #37: 0x00000001015b4825 servo`std::panicking::try<(f=AssertUnwindSafe<closure> at 0x0000000132e1de88),std::panic::AssertUnwindSafe<closure>> + 357 at panicking.rs:433
    frame #38: 0x00000001015b3247 servo`std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,(f=AssertUnwindSafe<closure> at 0x0000000132e1dfe8)> + 199 at panic.rs:361
    frame #39: 0x0000000101677feb servo`rayon::unwind::halt_unwinding<closure,(func=closure at 0x0000000132e1e0c8)> + 315 at unwind.rs:19
    frame #40: 0x0000000101676dba servo`rayon::scope::{{impl}}::execute_job_closure<closure>(self=0x000000012ea05c18, func=closure at 0x0000000132e1e1e0) + 314 at mod.rs:314
    frame #41: 0x000000010167692f servo`rayon::scope::{{impl}}::execute_job<closure>(self=0x000000012ea05c18, func=closure at 0x0000000132e1e328, mode=Execute) + 255 at mod.rs:301
    frame #42: 0x0000000101677689 servo`rayon::scope::{{impl}}::spawn::{{closure}}<closure>(mode=Execute) + 169 at mod.rs:279
    frame #43: 0x00000001016be778 servo`rayon::job::{{impl}}::execute<closure>(this=0x000000011e045b40, mode=Execute) + 264 at job.rs:158
    frame #44: 0x0000000105a3920b servo`rayon::job::{{impl}}::execute(self=0x0000000132e1e668, mode=Execute) + 59 at job.rs:60
    frame #45: 0x0000000105a3ad4c servo`rayon::thread_pool::{{impl}}::pop_spawned_jobs(self=0x0000000132e1e800, start_count=0) + 220 at thread_pool.rs:349
    frame #46: 0x0000000105a3b7e8 servo`rayon::thread_pool::main_loop(worker=Worker<rayon::job::JobRef> at 0x0000000132e1e718, registry=Arc<rayon::thread_pool::Registry> at 0x0000000132e1e728, index=5) + 1464 at thread_pool.rs:460
    frame #47: 0x0000000105a39f28 servo`rayon::thread_pool::{{impl}}::new::{{closure}} + 72 at thread_pool.rs:87
    frame #48: 0x0000000105a3728b servo`std::panic::{{impl}}::call_once<(self=AssertUnwindSafe<closure> at 0x0000000132e1ea20, _args=<unavailable>),closure> + 91 at panic.rs:296
    frame #49: 0x0000000105a268e3 servo`std::panicking::try::do_call<std::panic::AssertUnwindSafe<closure>,(data=0x0000000132e1ec18)> + 227 at panicking.rs:454
    frame #50: 0x0000000105b0bf7b servo`panic_unwind::__rust_maybe_catch_panic + 27 at lib.rs:98
    frame #51: 0x0000000105a2673d servo`std::panicking::try<(f=AssertUnwindSafe<closure> at 0x0000000132e1ebd8),std::panic::AssertUnwindSafe<closure>> + 205 at panicking.rs:433
    frame #52: 0x0000000105a25677 servo`std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,(f=AssertUnwindSafe<closure> at 0x0000000132e1ecb8)> + 103 at panic.rs:361
    frame #53: 0x0000000105a263ac servo`std::thread::{{impl}}::spawn::{{closure}}<closure,()> + 332 at mod.rs:360
    frame #54: 0x0000000105a300e4 servo`alloc::boxed::{{impl}}::call_box<(self=0x000000011ea3e600, args=<unavailable>),closure> + 68 at boxed.rs:640
    frame #55: 0x0000000105b07a35 servo`std::sys::imp::thread::{{impl}}::new::thread_start [inlined] alloc::boxed::{{impl}}::call_once<(),()> + 37 at boxed.rs:650
    frame #56: 0x0000000105b07a2f servo`std::sys::imp::thread::{{impl}}::new::thread_start [inlined] std::sys_common::thread::start_thread + 15 at thread.rs:21
    frame #57: 0x0000000105b07a20 servo`std::sys::imp::thread::{{impl}}::new::thread_start + 16 at thread.rs:84
    frame #58: 0x00007fff8e492899 libsystem_pthread.dylib`_pthread_body + 138
    frame #59: 0x00007fff8e49272a libsystem_pthread.dylib`_pthread_start + 137
    frame #60: 0x00007fff8e496fc9 libsystem_pthread.dylib`thread_start + 13
@jdm jdm added I-panic Servo encounters a panic. A-content/css Interacting with CSS from web content (parsing, serializing, introspection) labels Apr 13, 2017
@jdm jdm mentioned this issue Apr 13, 2017
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@jdm
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jdm commented Apr 13, 2017

@emilio Is the assertion in LayoutJS<Element>::insert_selector_flags intended to verify that the method is not being called from worker threads, or is it just too strict? I see a comment in lazily_compute_pseudo_element_style that suggests that this assertion may be intentionally strict, and this is an actual bug being triggered.

@emilio
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emilio commented Apr 13, 2017

In this case the assertion shouldn't be that strict (unlike the other one), let me put a PR together for this, adding some comments around.

Thanks for filing this btw :)

emilio added a commit that referenced this issue Apr 13, 2017
@emilio
style: relax assertions in dom::element when setting selector flags.
fed32cc 
Fixes #16409
This was referenced Apr 13, 2017
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sviter commented Oct 24, 2017

ScriptThread: received a resize msg for a pipeline not in this script thread. This is a bug.

URL:

http://lcamtuf.coredump.cx/transfuzz.html

Servo Version:

Servo 0.0.1-0e6946f

Backtrace:


WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(0), index: PipelineIndex(NonZero(NonZero(3))) }>: Resuming an already resumed timer.
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(0), index: PipelineIndex(NonZero(NonZero(3))) }>: stop_parsing not implemented, full speed ahead!
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: failed to deliver network data: ()
WARNING: failed to deliver network data: ()
WARNING: failed to deliver network data: ()
WARNING: failed to deliver network data: ()
WARNING: failed to deliver network data: ()
WARNING: failed to deliver network data: ()
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: layout thread unreachable - leaking layout data
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: Message sent to closed pipeline (3,237).
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: change of activity sent to nonexistent pipeline
WARNING: <ScriptThread PipelineId { namespace_id: PipelineNamespaceId(1), index: PipelineIndex(NonZero(NonZero(7))) }>: Panic hook called.
ERROR: ScriptThread: received a resize msg for a pipeline not in this script thread. This is a bug.

stack backtrace:
   0:     0x7ff7917ab68c - <no info>
   1:     0x7ff7917abd1e - <no info>
   2:     0x7ff7910b365b - <no info>
   3:     0x7ff7910b1522 - <no info>
   4:     0x7ff7919118be - <no info>
   5:     0x7ff79002f21a - <no info>
   6:     0x7ff791934f84 - <no info>
   7:     0x7ff791934df9 - <no info>
   8:     0x7ff791934cd2 - <no info>
   9:     0x7ff791934c40 - <no info>
  10:     0x7ff79193df8f - <no info>
  11:     0x7ff79193e000 - <no info>
  12:     0x7ff790aa0483 - <no info>
  13:     0x7ff790a9a39c - <no info>
  14:     0x7ff790a90be6 - <no info>
  15:     0x7ff7902fe438 - <no info>
  16:     0x7ff790386069 - <no info>
  17:     0x7ff791936262 - <no info>
  18:     0x7ff7905b9a6b - <no info>
  19:     0x7ff7919335fc - <no info>
  20:     0x7ffe24761fe4 - BaseThreadInitThunk

This report was generated by the browser.html issue reporter.

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