Bug 1620157 Comment 0 Edit History

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Original comment by
on 
This bug is for crash report bp-98dc2471-1bb2-4acf-8d14-346080200305.

```
Top 10 frames of crashing thread:

0 libpthread-2.27.so __pthread_cond_wait /build/glibc-OTsEL5/glibc-2.27/nptl/pthread_cond_wait.c:655
1 firefox-bin <name omitted> mozglue/misc/ConditionVariable_posix.cpp:109
2 libxul.so mozilla::ThreadEventQueue<mozilla::PrioritizedEventQueue>::GetEvent xpcom/threads/CondVar.h:57
3 libxul.so nsThread::ProcessNextEvent xpcom/threads/nsThread.cpp:1148
4 libxul.so <name omitted> xpcom/threads/nsThreadUtils.cpp:486
5 libxul.so mozilla::layers::CompositorThreadHolder::Shutdown gfx/layers/ipc/CompositorThread.cpp:137
6 libxul.so gfxPlatform::ShutdownLayersIPC gfx/thebes/gfxPlatform.cpp:1419
7 libxul.so mozilla::ShutdownXPCOM xpcom/build/XPCOMInit.cpp:629
8 libxul.so ScopedXPCOMStartup::~ScopedXPCOMStartup toolkit/xre/nsAppRunner.cpp:1225
9 libxul.so XREMain::XRE_main toolkit/xre/nsAppRunner.cpp:4769

```
**Affected Platforms**
* Ubuntu 18.04 64bit

**Affected Updates**
* Updates from 73.0 to 74.0 (BuildId:20200304223017)  (via release-localtest channel).
* Updates from 73.0 to 73.0.1.

**Unaffected Updates**
* Updates from 74.0a1 (2020-02-01) to latest.

**Steps to reproduce**
1. Launch Firefox.
2. Update Firefox via the "About Firefox" panel.

**Expected Result**
* Firefox updates successfully.

**Actual Result**
* Firefox crashes.

**Notes**
* This seems to occur only on Ubuntu 18.04. I'll get back with the confirmation if this is reproducible only on my machine.
Revision 1 by
on 
This bug is for crash report bp-98dc2471-1bb2-4acf-8d14-346080200305.

```
Top 10 frames of crashing thread:

0 libpthread-2.27.so __pthread_cond_wait /build/glibc-OTsEL5/glibc-2.27/nptl/pthread_cond_wait.c:655
1 firefox-bin <name omitted> mozglue/misc/ConditionVariable_posix.cpp:109
2 libxul.so mozilla::ThreadEventQueue<mozilla::PrioritizedEventQueue>::GetEvent xpcom/threads/CondVar.h:57
3 libxul.so nsThread::ProcessNextEvent xpcom/threads/nsThread.cpp:1148
4 libxul.so <name omitted> xpcom/threads/nsThreadUtils.cpp:486
5 libxul.so mozilla::layers::CompositorThreadHolder::Shutdown gfx/layers/ipc/CompositorThread.cpp:137
6 libxul.so gfxPlatform::ShutdownLayersIPC gfx/thebes/gfxPlatform.cpp:1419
7 libxul.so mozilla::ShutdownXPCOM xpcom/build/XPCOMInit.cpp:629
8 libxul.so ScopedXPCOMStartup::~ScopedXPCOMStartup toolkit/xre/nsAppRunner.cpp:1225
9 libxul.so XREMain::XRE_main toolkit/xre/nsAppRunner.cpp:4769

```
**Affected Platforms**
* Ubuntu 18.04 64bit

**Affected Updates**
* Updates from 74.0 (BuildId:20200302184608) to 74.0 (BuildId:20200304223017) -via release-localtest channel.
* Updates from 73.0 to 74.0 (BuildId:20200304223017)  -via release-localtest channel.
* Updates from 73.0 to 73.0.1.

**Unaffected Updates**
* Updates from 74.0a1 (2020-02-01) to latest.

**Steps to reproduce**
1. Launch Firefox.
2. Update Firefox via the "About Firefox" panel.

**Expected Result**
* Firefox updates successfully.

**Actual Result**
* Firefox crashes.

**Notes**
* This seems to occur only on Ubuntu 18.04. I'll get back with the confirmation if this is reproducible only on my machine.
Revision 2 by
on 
This bug is for crash report bp-98dc2471-1bb2-4acf-8d14-346080200305.

```
Top 10 frames of crashing thread:

0 libpthread-2.27.so __pthread_cond_wait /build/glibc-OTsEL5/glibc-2.27/nptl/pthread_cond_wait.c:655
1 firefox-bin <name omitted> mozglue/misc/ConditionVariable_posix.cpp:109
2 libxul.so mozilla::ThreadEventQueue<mozilla::PrioritizedEventQueue>::GetEvent xpcom/threads/CondVar.h:57
3 libxul.so nsThread::ProcessNextEvent xpcom/threads/nsThread.cpp:1148
4 libxul.so <name omitted> xpcom/threads/nsThreadUtils.cpp:486
5 libxul.so mozilla::layers::CompositorThreadHolder::Shutdown gfx/layers/ipc/CompositorThread.cpp:137
6 libxul.so gfxPlatform::ShutdownLayersIPC gfx/thebes/gfxPlatform.cpp:1419
7 libxul.so mozilla::ShutdownXPCOM xpcom/build/XPCOMInit.cpp:629
8 libxul.so ScopedXPCOMStartup::~ScopedXPCOMStartup toolkit/xre/nsAppRunner.cpp:1225
9 libxul.so XREMain::XRE_main toolkit/xre/nsAppRunner.cpp:4769

```
**Affected Platforms**
* Ubuntu 18.04 64bit

**Affected Versions**
* Firefox 74.0 (BuildId: 20200304223017)
* Firefox 73.0.1
* ESR 68.6.0(BuildId: 20200302183506)

This was also encountered while performing the following updates:

* Updates from 74.0 (BuildId:20200302184608) to 74.0 (BuildId:20200304223017) -via release-localtest channel.
* Updates from 73.0 to 74.0 (BuildId:20200304223017)  -via release-localtest channel.
* Updates from 73.0 to 73.0.1.

**Unaffected Versions**
* Firefox 75.0a1 (BuildId:20200304161940).

**Steps to reproduce**
1. Launch Firefox.
2. Update Firefox via the "About Firefox" panel.

Or 
1. Launch Firefox.
2. Restart via browser console.

**Expected Result**
* Firefox updates successfully.

**Actual Result**
* Firefox crashes.

**Notes**
* I didn't managed to reproduce this issue on other Ubuntu 18.04 machines.

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