Closed Bug 1639145 Opened 5 months ago Closed 4 months ago

Crash in [@ mozilla::layers::CompositorBridgeParent::NotifyWebRenderContextPurge]

Categories

(Core :: Graphics: WebRender, defect, P3)

Unspecified
Linux
defect

Tracking

()

RESOLVED FIXED
mozilla78
Tracking Status
firefox-esr68 --- unaffected
firefox76 --- unaffected
firefox77 --- unaffected
firefox78 --- fixed

People

(Reporter: achronop, Assigned: sotaro)

References

Details

(Keywords: crash)

Crash Data

Attachments

(1 file)

This bug is for crash report bp-4473119b-807d-4b85-8608-719460200518.

Top 9 frames of crashing thread:

0 libxul.so mozilla::layers::CompositorBridgeParent::NotifyWebRenderContextPurge gfx/layers/ipc/CompositorBridgeParent.cpp:2507
1 libxul.so RunnableFunction<void  ipc/chromium/src/base/task.h:324
2 libxul.so nsThread::ProcessNextEvent xpcom/threads/nsThread.cpp:1211
3 libxul.so mozilla::ipc::MessagePumpForNonMainThreads::Run xpcom/threads/nsThreadUtils.cpp:501
4 libxul.so MessageLoop::Run ipc/chromium/src/base/message_loop.cc:290
5 libxul.so nsThread::ThreadFunc xpcom/threads/nsThread.cpp:444
6 libnspr4.so _pt_root nsprpub/pr/src/pthreads/ptthread.c:201
7 libpthread.so.0 start_thread 
8 libc.so.6 __GI___clone 

This started crashing close after the land of Bug 1575008.

Hmm, doesn't look obviously related. Would be great to know what "about:support" looks like on that machine.

Severity: -- → S3
Priority: -- → P3

Moving as it doesn't appear to be related to WebGPU, looking by the code (thanks to JeffM).

Component: Graphics: WebGPU → Graphics: WebRender

It seems that nullptr access happened there. mWrBridge is cleared during closing a window.

Assignee: nobody → sotaro.ikeda.g
Depends on: 1639388
Pushed by sikeda.birchill@mozilla.com:
https://hg.mozilla.org/integration/autoland/rev/9a840b47f67a
Add nullptr check to CompositorBridgeParent::NotifyWebRenderContextPurge() r=jrmuizel
Status: NEW → RESOLVED
Closed: 4 months ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla78
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