1622120 - Crash in [@ IPCError-browser | ShutDownKill | `anonymous namespace'::ShutdownObserveHelper::QueryInterface]

Status: RESOLVED WORKSFORME

(External Software Affecting Firefox :: Telemetry, defect, P3)

Description

[Andrew McCreight [:mccr8]]

This bug is for crash report bp-52ca257a-b88c-4219-994c-0cbeb0200311.

Top 10 frames of crashing thread:

0  @0x21b0a875d74 
1 xul.dll `anonymous namespace'::ShutdownObserveHelper::QueryInterface xpcom/threads/nsThreadManager.cpp:313
2 firefox.exe TargetNtOpenThread64 security/sandbox/chromium/sandbox/win/src/interceptors_64.cc:183
3 kernelbase.dll OpenThread 
4 xul.dll static mozilla::BackgroundPriorityRegion::Clear toolkit/xre/UntrustedModulesProcessor.cpp:65
5 xul.dll mozilla::UntrustedModulesProcessor::Disable toolkit/xre/UntrustedModulesProcessor.cpp:144
6 xul.dll mozilla::UntrustedModulesProcessor::Observe toolkit/xre/UntrustedModulesProcessor.cpp:160
7 xul.dll nsObserverList::NotifyObservers xpcom/ds/nsObserverList.cpp:65
8 xul.dll nsObserverService::NotifyObservers xpcom/ds/nsObserverService.cpp:292
9 xul.dll mozilla::dom::ContentChild::RecvShutdown dom/ipc/ContentChild.cpp:2994

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The priority flag is not set for this bug.
:toshi, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 2

[Toshihito Kikuchi [:toshi]]

This crash is caused by a breakpoint exception 80000003 during syscall to NtOpenThread, but I'm not sure where it came from.

Good news is we don't see any instance from builds newer than 20200323092419. It seems that this was silently fixed by a change somewhere. I'm resolving this for now. We can revisit here if the crash reappears again.