Bug: Intermittent None [@ g_mutex_lock] | single tracking bug
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2023-10-22 12:58:39+00:00
Resolved: 2023-11-15 12:00:40+00:00

**Filed by:** nfay [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=433358481&repo=try
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/e5-qSO4BTwygOREWvQ6bQg/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2023-10-22T12:36:47.398Z] 12:36:47     INFO -  Timeout waiting for test completion; killing browser...
[task 2023-10-22T12:36:47.949Z] 12:36:47     INFO -  mozcrash checking /tmp/tmpnnxxp7d_/profile/minidumps for minidumps...
[task 2023-10-22T12:36:47.950Z] 12:36:47     INFO -  mozcrash Downloading symbols from: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/FaEwfAN1QUayu_HBf-yEyA/artifacts/public/build/target.crashreporter-symbols.zip
[task 2023-10-22T12:37:09.074Z] 12:37:09     INFO -  mozcrash Copy/paste: /home/cltbld/tasks/task_169796295592525/fetches/minidump-stackwalk/minidump-stackwalk --symbols-url=https://symbols.mozilla.org/ --cyborg=/tmp/tmppo87iz70/572e5da5-de05-8467-b277-511d9941d67c.trace /tmp/tmpnnxxp7d_/profile/minidumps/572e5da5-de05-8467-b277-511d9941d67c.dmp /tmp/tmp8_40tfij
[task 2023-10-22T12:37:14.924Z] 12:37:14     INFO -  mozcrash Saved minidump as /home/cltbld/tasks/task_169796295592525/build/blobber_upload_dir/572e5da5-de05-8467-b277-511d9941d67c.dmp
[task 2023-10-22T12:37:14.924Z] 12:37:14     INFO -  PROCESS-CRASH | None [@ g_mutex_lock] | tabswitch
[task 2023-10-22T12:37:14.924Z] 12:37:14     INFO -  Crash dump filename: /tmp/tmpnnxxp7d_/profile/minidumps/572e5da5-de05-8467-b277-511d9941d67c.dmp
[task 2023-10-22T12:37:14.924Z] 12:37:14     INFO -  Process type: unknown
[task 2023-10-22T12:37:14.925Z] 12:37:14     INFO -  Process pid: unknown
[task 2023-10-22T12:37:14.925Z] 12:37:14     INFO -  Operating system: Linux
[task 2023-10-22T12:37:14.925Z] 12:37:14     INFO -                    4.15.0-213-generic #224-Ubuntu SMP Mon Jun 19 13:30:12 UTC 2023
[task 2023-10-22T12:37:14.925Z] 12:37:14     INFO -  CPU: amd64
[task 2023-10-22T12:37:14.925Z] 12:37:14     INFO -       family 6 model 94 stepping 3
[task 2023-10-22T12:37:14.925Z] 12:37:14     INFO -       8 CPUs
[task 2023-10-22T12:37:14.925Z] 12:37:14     INFO -  Linux Ubuntu 18.04 - bionic (Ubuntu 18.04.5 LTS)
[task 2023-10-22T12:37:14.925Z] 12:37:14     INFO -  Crash reason:  SIGABRT
[task 2023-10-22T12:37:14.925Z] 12:37:14     INFO -  Crash address: 0x3ee00000c84
[task 2023-10-22T12:37:14.926Z] 12:37:14     INFO -  Crashing instruction: `test eax, eax`
[task 2023-10-22T12:37:14.926Z] 12:37:14     INFO -  No memory accessed by instruction
[task 2023-10-22T12:37:14.926Z] 12:37:14     INFO -  Process uptime: not available
[task 2023-10-22T12:37:14.926Z] 12:37:14     INFO -  Thread 0 firefox-bin (crashed)
[task 2023-10-22T12:37:14.926Z] 12:37:14     INFO -   0  libglib-2.0.so.0!g_mutex_lock [gthread-posix.c : 1343 + 0x9]
[task 2023-10-22T12:37:14.926Z] 12:37:14     INFO -       rax = 0x0000000000000000    rdx = 0x0000000000000001
[task 2023-10-22T12:37:14.926Z] 12:37:14     INFO -       rcx = 0x0000000000000001    rbx = 0x00007efd7950a660
[task 2023-10-22T12:37:14.926Z] 12:37:14     INFO -       rsi = 0x0000000000000001    rdi = 0x00007efd7950a660
[task 2023-10-22T12:37:14.927Z] 12:37:14     INFO -       rbp = 0x00007ffd46caded0    rsp = 0x00007ffd46cadeb8
[task 2023-10-22T12:37:14.927Z] 12:37:14     INFO -        r8 = 0x0000000000000003     r9 = 0x00007efd901b80e0
[task 2023-10-22T12:37:14.927Z] 12:37:14     INFO -       r10 = 0x00007ffd46cade40    r11 = 0x0000000000000001
[task 2023-10-22T12:37:14.927Z] 12:37:14     INFO -       r12 = 0x000000007fffffff    r13 = 0x00007ffd46cadec8
[task 2023-10-22T12:37:14.927Z] 12:37:14     INFO -       r14 = 0x0000000000000000    r15 = 0x0000000000000000
[task 2023-10-22T12:37:14.927Z] 12:37:14     INFO -       rip = 0x00007efd88808839
[task 2023-10-22T12:37:14.927Z] 12:37:14     INFO -      Found by: given as instruction pointer in context
[task 2023-10-22T12:37:14.928Z] 12:37:14     INFO -   1  libglib-2.0.so.0!g_main_context_check [gmain.c : 3739 + 0x4]
[task 2023-10-22T12:37:14.928Z] 12:37:14     INFO -       rbx = 0x00007efd7950a660    rbp = 0x00007ffd46caded0
[task 2023-10-22T12:37:14.928Z] 12:37:14     INFO -       rsp = 0x00007ffd46cadec0    r12 = 0x000000007fffffff
[task 2023-10-22T12:37:14.928Z] 12:37:14     INFO -       r13 = 0x00007ffd46cadec8    r14 = 0x0000000000000000
[task 2023-10-22T12:37:14.928Z] 12:37:14     INFO -       r15 = 0x0000000000000000    rip = 0x00007efd887c210c
[task 2023-10-22T12:37:14.928Z] 12:37:14     INFO -      Found by: call frame info
[task 2023-10-22T12:37:14.929Z] 12:37:14     INFO -   2  libglib-2.0.so.0!g_main_context_iterate.isra.26 [gmain.c : 3899 + 0x10]
[task 2023-10-22T12:37:14.929Z] 12:37:14     INFO -       rbx = 0x00007efd7950a660    rbp = 0x0000000000000004
[task 2023-10-22T12:37:14.929Z] 12:37:14     INFO -       rsp = 0x00007ffd46cadf40    r12 = 0x00007efd6d8135a0
[task 2023-10-22T12:37:14.929Z] 12:37:14     INFO -       r13 = 0x0000000000000001    r14 = 0x00007efd7e8e99e0
[task 2023-10-22T12:37:14.929Z] 12:37:14     INFO -       r15 = 0x0000000000000004    rip = 0x00007efd887c2690
[task 2023-10-22T12:37:14.929Z] 12:37:14     INFO -      Found by: call frame info
[task 2023-10-22T12:37:14.929Z] 12:37:14     INFO -   3  libglib-2.0.so.0!g_main_context_iteration [gmain.c : 3963 + 0x13]
[task 2023-10-22T12:37:14.930Z] 12:37:14     INFO -       rbx = 0x00007efd7950a660    rbp = 0x0000000000000001
[task 2023-10-22T12:37:14.930Z] 12:37:14     INFO -       rsp = 0x00007ffd46cadfa0    r12 = 0x00007efd7d6dded0
[task 2023-10-22T12:37:14.930Z] 12:37:14     INFO -       r13 = 0x00007efd7efd3e30    r14 = 0x0000000000000000
[task 2023-10-22T12:37:14.930Z] 12:37:14     INFO -       r15 = 0x00007efd787bdd08    rip = 0x00007efd887c27fc
[task 2023-10-22T12:37:14.930Z] 12:37:14     INFO -      Found by: call frame info
[task 2023-10-22T12:37:14.930Z] 12:37:14     INFO -   4  libxul.so!nsAppShell::ProcessNextNativeEvent(bool) [nsAppShell.cpp:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 418]
[task 2023-10-22T12:37:14.931Z] 12:37:14     INFO -      Found by: inlining
[task 2023-10-22T12:37:14.931Z] 12:37:14     INFO -   5  libxul.so!nsBaseAppShell::DoProcessNextNativeEvent(bool) [nsBaseAppShell.cpp:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 131]
[task 2023-10-22T12:37:14.931Z] 12:37:14     INFO -      Found by: inlining
[task 2023-10-22T12:37:14.931Z] 12:37:14     INFO -   6  libxul.so!nsBaseAppShell::OnProcessNextEvent(nsIThreadInternal*, bool) [nsBaseAppShell.cpp:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 267]
[task 2023-10-22T12:37:14.931Z] 12:37:14     INFO -      Found by: inlining
[task 2023-10-22T12:37:14.932Z] 12:37:14     INFO -   7  libxul.so!{virtual override thunk({offset(-8)}, nsBaseAppShell::OnProcessNextEvent(nsIThreadInternal*, bool))} [nsBaseAppShell.cpp:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 0]
[task 2023-10-22T12:37:14.932Z] 12:37:14     INFO -      Found by: inlining
[task 2023-10-22T12:37:14.932Z] 12:37:14     INFO -   8  libxul.so!nsThread::ProcessNextEvent(bool, bool*) [nsThread.cpp:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 1113]
[task 2023-10-22T12:37:14.932Z] 12:37:14     INFO -      Found by: inlining
[task 2023-10-22T12:37:14.932Z] 12:37:14     INFO -   9  libxul.so!NS_ProcessNextEvent(nsIThread*, bool) [nsThreadUtils.cpp:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 480 + 0x7e7]
[task 2023-10-22T12:37:14.933Z] 12:37:14     INFO -       rbx = 0x00007efd79506ae0    rbp = 0x00007ffd46cae150
[task 2023-10-22T12:37:14.933Z] 12:37:14     INFO -       rsp = 0x00007ffd46cadfc0    r12 = 0x00007efd7d6dded0
[task 2023-10-22T12:37:14.933Z] 12:37:14     INFO -       r13 = 0x00007efd7efd3e30    r14 = 0x0000000000000000
[task 2023-10-22T12:37:14.933Z] 12:37:14     INFO -       r15 = 0x00007efd787bdd08    rip = 0x00007efd7d5d18a5
[task 2023-10-22T12:37:14.933Z] 12:37:14     INFO -      Found by: call frame info
[task 2023-10-22T12:37:14.933Z] 12:37:14     INFO -  10  libxul.so!mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) [MessagePump.cpp:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 107 + 0x9]
[task 2023-10-22T12:37:14.934Z] 12:37:14     INFO -       rbx = 0x00007efd78705d68    rbp = 0x00007ffd46cae310
[task 2023-10-22T12:37:14.934Z] 12:37:14     INFO -       rsp = 0x00007ffd46cae160    r12 = 0x00007efd602699d0
[task 2023-10-22T12:37:14.934Z] 12:37:14     INFO -       r13 = 0x00007efd795acd40    r14 = 0x0000000000000000
[task 2023-10-22T12:37:14.934Z] 12:37:14     INFO -       r15 = 0x0000000080dcdf00    rip = 0x00007efd7d5d01f4
[task 2023-10-22T12:37:14.934Z] 12:37:14     INFO -      Found by: call frame info
[task 2023-10-22T12:37:14.934Z] 12:37:14     INFO -  11  libxul.so!MessageLoop::RunInternal() [message_loop.cc:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 370]
[task 2023-10-22T12:37:14.934Z] 12:37:14     INFO -      Found by: inlining
[task 2023-10-22T12:37:14.935Z] 12:37:14     INFO -  12  libxul.so!MessageLoop::RunHandler() [message_loop.cc:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 363]
[task 2023-10-22T12:37:14.935Z] 12:37:14     INFO -      Found by: inlining
[task 2023-10-22T12:37:14.935Z] 12:37:14     INFO -  13  libxul.so!MessageLoop::Run() [message_loop.cc:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 345]
[task 2023-10-22T12:37:14.935Z] 12:37:14     INFO -      Found by: inlining
[task 2023-10-22T12:37:14.935Z] 12:37:14     INFO -  14  libxul.so!nsBaseAppShell::Run() [nsBaseAppShell.cpp:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 148 + 0x3e]
[task 2023-10-22T12:37:14.935Z] 12:37:14     INFO -       rbx = 0x00007efd787bdd00    rbp = 0x00007ffd46cae360
[task 2023-10-22T12:37:14.936Z] 12:37:14     INFO -       rsp = 0x00007ffd46cae320    r12 = 0x00007ffd46cae320
[task 2023-10-22T12:37:14.936Z] 12:37:14     INFO -       r13 = 0x00007ffd46cae410    r14 = 0x00007efd79506ae0
[task 2023-10-22T12:37:14.936Z] 12:37:14     INFO -       r15 = 0x0000000000000000    rip = 0x00007efd7e8e544e
[task 2023-10-22T12:37:14.936Z] 12:37:14     INFO -      Found by: call frame info
[task 2023-10-22T12:37:14.936Z] 12:37:14     INFO -  15  libxul.so!nsAppStartup::Run() [nsAppStartup.cpp:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 296 + 0x5]
[task 2023-10-22T12:37:14.937Z] 12:37:14     INFO -       rbx = 0x00007efd795802e0    rbp = 0x00007ffd46cae390
[task 2023-10-22T12:37:14.937Z] 12:37:14     INFO -       rsp = 0x00007ffd46cae370    r12 = 0x00007efd795802e0
[task 2023-10-22T12:37:14.937Z] 12:37:14     INFO -       r13 = 0x00007ffd46cae410    r14 = 0x00007ffd46cae5d8
[task 2023-10-22T12:37:14.937Z] 12:37:14     INFO -       r15 = 0x00007efd717e6250    rip = 0x00007efd7e5c63e5
[task 2023-10-22T12:37:14.937Z] 12:37:14     INFO -      Found by: call frame info
[task 2023-10-22T12:37:14.937Z] 12:37:14     INFO -  16  libxul.so!XREMain::XRE_mainRun() [nsAppRunner.cpp:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 5675 + 0x9]
[task 2023-10-22T12:37:14.938Z] 12:37:14     INFO -       rbx = 0x0000000000000000    rbp = 0x00007ffd46cae540
[task 2023-10-22T12:37:14.938Z] 12:37:14     INFO -       rsp = 0x00007ffd46cae3a0    r12 = 0x00007efd795802e0
[task 2023-10-22T12:37:14.938Z] 12:37:14     INFO -       r13 = 0x00007ffd46cae410    r14 = 0x00007ffd46cae5d8
[task 2023-10-22T12:37:14.938Z] 12:37:14     INFO -       r15 = 0x00007efd717e6250    rip = 0x00007efd7de12aeb
[task 2023-10-22T12:37:14.938Z] 12:37:14     INFO -      Found by: call frame info
[task 2023-10-22T12:37:14.938Z] 12:37:14     INFO -  17  libxul.so!XREMain::XRE_main(int, char**, mozilla::BootstrapConfig const&) [nsAppRunner.cpp:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 5884 + 0x7]
[task 2023-10-22T12:37:14.939Z] 12:37:14     INFO -       rbx = 0x00007ffd46cae5d8    rbp = 0x00007ffd46cae5c0
[task 2023-10-22T12:37:14.939Z] 12:37:14     INFO -       rsp = 0x00007ffd46cae550    r12 = 0x0000000000000000
[task 2023-10-22T12:37:14.939Z] 12:37:14     INFO -       r13 = 0x00007efd8ecc0be0    r14 = 0x00007efd8ecc05b0
[task 2023-10-22T12:37:14.939Z] 12:37:14     INFO -       r15 = 0x00007efd795bc488    rip = 0x00007efd7ddb3c2f
[task 2023-10-22T12:37:14.939Z] 12:37:14     INFO -      Found by: call frame info
[task 2023-10-22T12:37:14.939Z] 12:37:14     INFO -  18  libxul.so!XRE_main(int, char**, mozilla::BootstrapConfig const&) [nsAppRunner.cpp:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 5940 + 0x10]
[task 2023-10-22T12:37:14.940Z] 12:37:14     INFO -       rbx = 0x00007ffd46cae790    rbp = 0x00007ffd46cae750
[task 2023-10-22T12:37:14.940Z] 12:37:14     INFO -       rsp = 0x00007ffd46cae5d0    r12 = 0x00007ffd46cae5d8
[task 2023-10-22T12:37:14.940Z] 12:37:14     INFO -       r13 = 0x00007ffd46cb14e4    r14 = 0x00007ffd46caf8a8
[task 2023-10-22T12:37:14.940Z] 12:37:14     INFO -       r15 = 0x0000000000000003    rip = 0x00007efd7ddb2b88
[task 2023-10-22T12:37:14.940Z] 12:37:14     INFO -      Found by: call frame info
[task 2023-10-22T12:37:14.940Z] 12:37:14     INFO -  19  firefox-bin!do_main(int, char**, char**) [nsBrowserApp.cpp:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 227]
[task 2023-10-22T12:37:14.941Z] 12:37:14     INFO -      Found by: inlining
[task 2023-10-22T12:37:14.941Z] 12:37:14     INFO -  20  firefox-bin!main [nsBrowserApp.cpp:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 445 + 0x7e]
[task 2023-10-22T12:37:14.941Z] 12:37:14     INFO -       rbx = 0x00007ffd46caf8c8    rbp = 0x00007ffd46caf7c0
[task 2023-10-22T12:37:14.941Z] 12:37:14     INFO -       rsp = 0x00007ffd46cae760    r12 = 0x000055eec20e803d
[task 2023-10-22T12:37:14.941Z] 12:37:14     INFO -       r13 = 0x00007ffd46cb14e4    r14 = 0x0000000000000003
[task 2023-10-22T12:37:14.941Z] 12:37:14     INFO -       r15 = 0x00007ffd46caf8a8    rip = 0x000055eec2164278
[task 2023-10-22T12:37:14.942Z] 12:37:14     INFO -      Found by: call frame info
[task 2023-10-22T12:37:14.942Z] 12:37:14     INFO -  21  libc.so.6 + 0x21bf6
[task 2023-10-22T12:37:14.942Z] 12:37:14     INFO -       rbx = 0x0000000000000000    rbp = 0x000055eec217cf80
[task 2023-10-22T12:37:14.942Z] 12:37:14     INFO -       rsp = 0x00007ffd46caf7d0    r12 = 0x000055eec217ce76
[task 2023-10-22T12:37:14.942Z] 12:37:14     INFO -       r13 = 0x00007ffd46caf8a0    r14 = 0x0000000000000000
[task 2023-10-22T12:37:14.942Z] 12:37:14     INFO -       r15 = 0x0000000000000000    rip = 0x00007efd8ee7bbf7
[task 2023-10-22T12:37:14.942Z] 12:37:14     INFO -      Found by: call frame info
[task 2023-10-22T12:37:14.943Z] 12:37:14     INFO -  22  firefox-bin!mozilla::SHA1Sum::update(void const*, unsigned int) [SHA1.cpp:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 0 + 0x1]
[task 2023-10-22T12:37:14.943Z] 12:37:14     INFO -       rsp = 0x00007ffd46caf808    rip = 0x000055eec217ce76
[task 2023-10-22T12:37:14.943Z] 12:37:14     INFO -      Found by: stack scanning
[task 2023-10-22T12:37:14.943Z] 12:37:14     INFO -  23  ld-linux-x86-64.so.2 + 0x108d2
[task 2023-10-22T12:37:14.943Z] 12:37:14     INFO -       rsp = 0x00007ffd46caf850    rip = 0x00007efd8ffbd8d3
[task 2023-10-22T12:37:14.943Z] 12:37:14     INFO -      Found by: stack scanning
[task 2023-10-22T12:37:14.943Z] 12:37:14     INFO -  24  libdl.so.2 + 0x202d7f
[task 2023-10-22T12:37:14.944Z] 12:37:14     INFO -       rsp = 0x00007ffd46caf858    rip = 0x00007efd8fd8cd80
[task 2023-10-22T12:37:14.944Z] 12:37:14     INFO -      Found by: stack scanning
[task 2023-10-22T12:37:14.944Z] 12:37:14     INFO -  25  libpthread.so.0 + 0x219baf
[task 2023-10-22T12:37:14.944Z] 12:37:14     INFO -       rsp = 0x00007ffd46caf860    rip = 0x00007efd8ffa7bb0
[task 2023-10-22T12:37:14.944Z] 12:37:14     INFO -      Found by: stack scanning
[task 2023-10-22T12:37:14.944Z] 12:37:14     INFO -  26  firefox-bin!mozilla::SHA1Sum::update(void const*, unsigned int) [SHA1.cpp:b7211a8f2d49c14dc4e7769199075e5e22ccbbf5 : 0 + 0x1]
[task 2023-10-22T12:37:14.944Z] 12:37:14     INFO -       rsp = 0x00007ffd46caf880    rip = 0x000055eec217ce76
[task 2023-10-22T12:37:14.944Z] 12:37:14     INFO -      Found by: stack scanning
[task 2023-10-22T12:37:14.945Z] 12:37:14     INFO -  27  firefox-bin!_start + 0x28
[task 2023-10-22T12:37:14.945Z] 12:37:14     INFO -       rsp = 0x00007ffd46caf890    rip = 0x000055eec217ce9f
[task 2023-10-22T12:37:14.945Z] 12:37:14     INFO -      Found by: stack scanning
[task 2023-10-22T12:37:14.945Z] 12:37:14     INFO -  Thread 1 gmain
```