1806689 - Crash in [@ MessageLoop::PostTask_Helper | MessageLoop::PostTask | mozilla::camera::CamerasParent::DispatchToVideoCaptureThread]

Status: RESOLVED DUPLICATE of bug 1790160

(Core :: WebRTC: Audio/Video, defect)

Description

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

[Tracking Requested - why for this release]:

~800 crashes from ~800 installations of Firefox on Windows; version 108, 107, and some isolated 106 installs are reported but the first crash report with this signature got submitted at 2022-12-06 17:54:08 UTC.

Crash report: https://crash-stats.mozilla.org/report/index/8e87a88e-b996-4bff-a9c4-879d40221217

Reason: EXCEPTION_ACCESS_VIOLATION_READ

Top 10 frames of crashing thread:

0  xul.dll  RefPtr<base::MessagePump>::get const  mfbt/RefPtr.h:286
0  xul.dll  RefPtr<base::MessagePump>::operator-> const  mfbt/RefPtr.h:316
0  xul.dll  MessageLoop::PostTask_Helper  ipc/chromium/src/base/message_loop.cc:432
1  xul.dll  MessageLoop::PostTask  ipc/chromium/src/base/message_loop.cc:412
2  xul.dll  mozilla::camera::CamerasParent::DispatchToVideoCaptureThread  dom/media/systemservices/CamerasParent.cpp:205
3  xul.dll  mozilla::camera::CamerasParent::StopVideoCapture  dom/media/systemservices/CamerasParent.cpp:215
4  xul.dll  mozilla::ipc::IProtocol::DestroySubtree  ipc/glue/ProtocolUtils.cpp:585
5  xul.dll  mozilla::ipc::IProtocol::DestroySubtree  ipc/glue/ProtocolUtils.cpp:573
6  xul.dll  mozilla::ipc::PBackgroundParent::OnChannelError  ipc/ipdl/PBackgroundParent.cpp:6555
7  xul.dll  mozilla::ipc::MessageChannel::OnNotifyMaybeChannelError  ipc/glue/MessageChannel.cpp:2034

Comment 1

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

Jan-Ivar, could you check what causes these crashes? They don't use the same anti-virus, and this did not start on a Windows patch day.

Comment 2

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

Signature change by server-side processing