Bug: Intermittent None [@ mozilla::OffTheBooksMutex::Lock] | single tracking bug
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2023-10-27 05:16:46+00:00
Resolved: 2024-03-22 12:04:49+00:00

**Filed by:** ncsoregi [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=433984479&repo=mozilla-beta
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/IIaiVdnJQM-SZeKeOtyMvw/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2023-10-27T04:55:17.449Z] 04:55:17     INFO -  PROCESS-CRASH | None [@ mozilla::OffTheBooksMutex::Lock] | tabswitch
[task 2023-10-27T04:55:17.450Z] 04:55:17     INFO -  Crash dump filename: /tmp/tmp79ac0w2d/profile/minidumps/703d0086-435b-b039-8b97-3a6b9739f13d.dmp
[task 2023-10-27T04:55:17.450Z] 04:55:17     INFO -  Process type: unknown
[task 2023-10-27T04:55:17.450Z] 04:55:17     INFO -  Process pid: unknown
[task 2023-10-27T04:55:17.450Z] 04:55:17     INFO -  Operating system: Linux
[task 2023-10-27T04:55:17.450Z] 04:55:17     INFO -                    4.15.0-213-generic #224-Ubuntu SMP Mon Jun 19 13:30:12 UTC 2023
[task 2023-10-27T04:55:17.450Z] 04:55:17     INFO -  CPU: amd64
[task 2023-10-27T04:55:17.451Z] 04:55:17     INFO -       family 6 model 94 stepping 3
[task 2023-10-27T04:55:17.451Z] 04:55:17     INFO -       8 CPUs
[task 2023-10-27T04:55:17.451Z] 04:55:17     INFO -  Linux Ubuntu 18.04 - bionic (Ubuntu 18.04.5 LTS)
[task 2023-10-27T04:55:17.451Z] 04:55:17     INFO -  Crash reason:  SIGABRT
[task 2023-10-27T04:55:17.451Z] 04:55:17     INFO -  Crash address: 0x3ee00000c37
[task 2023-10-27T04:55:17.451Z] 04:55:17     INFO -  Crashing instruction: `mov rdi, rbp`
[task 2023-10-27T04:55:17.451Z] 04:55:17     INFO -  No memory accessed by instruction
[task 2023-10-27T04:55:17.451Z] 04:55:17     INFO -  Process uptime: not available
[task 2023-10-27T04:55:17.452Z] 04:55:17     INFO -  Thread 0 firefox-bin (crashed)
[task 2023-10-27T04:55:17.452Z] 04:55:17     INFO -   0  libxul.so!mozilla::OffTheBooksMutex::Lock() [Mutex.h:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 66]
[task 2023-10-27T04:55:17.452Z] 04:55:17     INFO -      Found by: inlining
[task 2023-10-27T04:55:17.452Z] 04:55:17     INFO -   1  libxul.so!mozilla::Monitor::Lock() [Monitor.h:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 31]
[task 2023-10-27T04:55:17.452Z] 04:55:17     INFO -      Found by: inlining
[task 2023-10-27T04:55:17.453Z] 04:55:17     INFO -   2  libxul.so!mozilla::detail::BaseMonitorAutoLock<mozilla::Monitor>::BaseMonitorAutoLock(mozilla::Monitor&) [Monitor.h:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 129]
[task 2023-10-27T04:55:17.453Z] 04:55:17     INFO -      Found by: inlining
[task 2023-10-27T04:55:17.453Z] 04:55:17     INFO -   3  libxul.so!mozilla::ipc::MessageChannel::MessageTask::Run() [MessageChannel.cpp:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 1592]
[task 2023-10-27T04:55:17.453Z] 04:55:17     INFO -      Found by: inlining
[task 2023-10-27T04:55:17.454Z] 04:55:17     INFO -   4  libxul.so!mozilla::RunnableTask::Run() [TaskController.cpp:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 549]
[task 2023-10-27T04:55:17.454Z] 04:55:17     INFO -      Found by: inlining
[task 2023-10-27T04:55:17.454Z] 04:55:17     INFO -   5  libxul.so!mozilla::TaskController::DoExecuteNextTaskOnlyMainThreadInternal(mozilla::detail::BaseAutoLock<mozilla::Mutex&> const&) [TaskController.cpp:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 876 + 0x83]
[task 2023-10-27T04:55:17.454Z] 04:55:17     INFO -       rax = 0x00007fa7864e82a0    rdx = 0x0003001100000000
[task 2023-10-27T04:55:17.454Z] 04:55:17     INFO -       rcx = 0x00007fa7864e82a0    rbx = 0x0000000000000000
[task 2023-10-27T04:55:17.454Z] 04:55:17     INFO -       rsi = 0x0000000000000000    rdi = 0x00007fa781106c70
[task 2023-10-27T04:55:17.455Z] 04:55:17     INFO -       rbp = 0x00007fa7538db200    rsp = 0x00007ffc043b6880
[task 2023-10-27T04:55:17.455Z] 04:55:17     INFO -        r8 = 0x0000000000000000     r9 = 0x00007fa73e2fa001
[task 2023-10-27T04:55:17.455Z] 04:55:17     INFO -       r10 = 0x00007ffc043b6840    r11 = 0x0000000000000001
[task 2023-10-27T04:55:17.455Z] 04:55:17     INFO -       r12 = 0x00007fa780322760    r13 = 0x00007fa73e863c00
[task 2023-10-27T04:55:17.455Z] 04:55:17     INFO -       r14 = 0x00007fa796726e00    r15 = 0x00007fa73d4f84a0
[task 2023-10-27T04:55:17.455Z] 04:55:17     INFO -       rip = 0x00007fa785115292
[task 2023-10-27T04:55:17.455Z] 04:55:17     INFO -      Found by: given as instruction pointer in context
[task 2023-10-27T04:55:17.456Z] 04:55:17     INFO -   6  libxul.so!mozilla::TaskController::ExecuteNextTaskOnlyMainThreadInternal(mozilla::detail::BaseAutoLock<mozilla::Mutex&> const&) [TaskController.cpp:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 699]
[task 2023-10-27T04:55:17.456Z] 04:55:17     INFO -      Found by: inlining
[task 2023-10-27T04:55:17.456Z] 04:55:17     INFO -   7  libxul.so!mozilla::TaskController::ProcessPendingMTTask(bool) [TaskController.cpp:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 485 + 0xa]
[task 2023-10-27T04:55:17.456Z] 04:55:17     INFO -       rbx = 0x00007fa781106c70    rbp = 0x0000000000000001
[task 2023-10-27T04:55:17.456Z] 04:55:17     INFO -       rsp = 0x00007ffc043b6a00    r12 = 0x00007fa7811fc9a0
[task 2023-10-27T04:55:17.457Z] 04:55:17     INFO -       r13 = 0x00007fa796726ea8    r14 = 0x00007fa796726e00
[task 2023-10-27T04:55:17.457Z] 04:55:17     INFO -       r15 = 0x00007ffc043b6a18    rip = 0x00007fa785114b5a
[task 2023-10-27T04:55:17.457Z] 04:55:17     INFO -      Found by: call frame info
[task 2023-10-27T04:55:17.457Z] 04:55:17     INFO -   8  libxul.so!mozilla::TaskController::TaskController()::$_1::operator()() const [TaskController.cpp:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 214]
[task 2023-10-27T04:55:17.457Z] 04:55:17     INFO -      Found by: inlining
[task 2023-10-27T04:55:17.457Z] 04:55:17     INFO -   9  libxul.so!mozilla::detail::RunnableFunction<mozilla::TaskController::TaskController()::$_1>::Run() [nsThreadUtils.h:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 548]
[task 2023-10-27T04:55:17.458Z] 04:55:17     INFO -      Found by: inlining
[task 2023-10-27T04:55:17.458Z] 04:55:17     INFO -  10  libxul.so!nsThread::ProcessNextEvent(bool, bool*) [nsThread.cpp:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 1198]
[task 2023-10-27T04:55:17.458Z] 04:55:17     INFO -      Found by: inlining
[task 2023-10-27T04:55:17.458Z] 04:55:17     INFO -  11  libxul.so!NS_ProcessNextEvent(nsIThread*, bool) [nsThreadUtils.cpp:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 480 + 0x725]
[task 2023-10-27T04:55:17.458Z] 04:55:17     INFO -       rbx = 0x00007fa781106c70    rbp = 0x0000000000000001
[task 2023-10-27T04:55:17.458Z] 04:55:17     INFO -       rsp = 0x00007ffc043b6a60    r12 = 0x00007fa7811fc9a0
[task 2023-10-27T04:55:17.459Z] 04:55:17     INFO -       r13 = 0x00007fa796726f90    r14 = 0x00007fa7967345e0
[task 2023-10-27T04:55:17.459Z] 04:55:17     INFO -       r15 = 0x0000084ffcf0c52c    rip = 0x00007fa78510efe3
[task 2023-10-27T04:55:17.459Z] 04:55:17     INFO -      Found by: call frame info
[task 2023-10-27T04:55:17.459Z] 04:55:17     INFO -  12  libxul.so!mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) [MessagePump.cpp:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 107 + 0x9]
[task 2023-10-27T04:55:17.459Z] 04:55:17     INFO -       rbx = 0x00007fa7811acc40    rbp = 0x0000000088a26e00
[task 2023-10-27T04:55:17.459Z] 04:55:17     INFO -       rsp = 0x00007ffc043b6bf0    r12 = 0x0000000000000000
[task 2023-10-27T04:55:17.460Z] 04:55:17     INFO -       r13 = 0x00007fa7803053c8    r14 = 0x00007fa7967db500
[task 2023-10-27T04:55:17.460Z] 04:55:17     INFO -       r15 = 0x00007fa772837160    rip = 0x00007fa78510ca83
[task 2023-10-27T04:55:17.460Z] 04:55:17     INFO -      Found by: call frame info
[task 2023-10-27T04:55:17.460Z] 04:55:17     INFO -  13  libxul.so!MessageLoop::RunInternal() [message_loop.cc:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 370]
[task 2023-10-27T04:55:17.460Z] 04:55:17     INFO -      Found by: inlining
[task 2023-10-27T04:55:17.460Z] 04:55:17     INFO -  14  libxul.so!MessageLoop::RunHandler() [message_loop.cc:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 363]
[task 2023-10-27T04:55:17.460Z] 04:55:17     INFO -      Found by: inlining
[task 2023-10-27T04:55:17.461Z] 04:55:17     INFO -  15  libxul.so!MessageLoop::Run() [message_loop.cc:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 345]
[task 2023-10-27T04:55:17.461Z] 04:55:17     INFO -      Found by: inlining
[task 2023-10-27T04:55:17.461Z] 04:55:17     INFO -  16  libxul.so!nsBaseAppShell::Run() [nsBaseAppShell.cpp:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 148 + 0x3e]
[task 2023-10-27T04:55:17.461Z] 04:55:17     INFO -       rbx = 0x00007fa7803bd380    rbp = 0x0000000000000000
[task 2023-10-27T04:55:17.461Z] 04:55:17     INFO -       rsp = 0x00007ffc043b6db0    r12 = 0x00007fa7811808d0
[task 2023-10-27T04:55:17.461Z] 04:55:17     INFO -       r13 = 0x00007ffc043b6e78    r14 = 0x00007fa781106c70
[task 2023-10-27T04:55:17.461Z] 04:55:17     INFO -       r15 = 0x00007ffc043b6db8    rip = 0x00007fa78663047a
[task 2023-10-27T04:55:17.462Z] 04:55:17     INFO -      Found by: call frame info
[task 2023-10-27T04:55:17.462Z] 04:55:17     INFO -  17  libxul.so!nsAppStartup::Run() [nsAppStartup.cpp:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 296 + 0x5]
[task 2023-10-27T04:55:17.462Z] 04:55:17     INFO -       rbx = 0x00007fa7811808d0    rbp = 0x00007ffc043b6e90
[task 2023-10-27T04:55:17.462Z] 04:55:17     INFO -       rsp = 0x00007ffc043b6e00    r12 = 0x00007fa7811808d0
[task 2023-10-27T04:55:17.462Z] 04:55:17     INFO -       r13 = 0x00007ffc043b6e78    r14 = 0x00007fa7967a4500
[task 2023-10-27T04:55:17.462Z] 04:55:17     INFO -       r15 = 0x00007fa7794e60d0    rip = 0x00007fa78628c1f1
[task 2023-10-27T04:55:17.463Z] 04:55:17     INFO -      Found by: call frame info
[task 2023-10-27T04:55:17.463Z] 04:55:17     INFO -  18  libxul.so!XREMain::XRE_mainRun() [nsAppRunner.cpp:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 5675 + 0x9]
[task 2023-10-27T04:55:17.463Z] 04:55:17     INFO -       rbx = 0x0000000000000000    rbp = 0x00007ffc043b6e90
[task 2023-10-27T04:55:17.463Z] 04:55:17     INFO -       rsp = 0x00007ffc043b6e30    r12 = 0x00007fa7811808d0
[task 2023-10-27T04:55:17.463Z] 04:55:17     INFO -       r13 = 0x00007ffc043b6e78    r14 = 0x00007fa7967a4500
[task 2023-10-27T04:55:17.463Z] 04:55:17     INFO -       r15 = 0x00007fa7794e60d0    rip = 0x00007fa785bbb882
[task 2023-10-27T04:55:17.464Z] 04:55:17     INFO -      Found by: call frame info
[task 2023-10-27T04:55:17.464Z] 04:55:17     INFO -  19  libxul.so!XREMain::XRE_main(int, char**, mozilla::BootstrapConfig const&) [nsAppRunner.cpp:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 5884 + 0x7]
[task 2023-10-27T04:55:17.464Z] 04:55:17     INFO -       rbx = 0x00007ffc043b7050    rbp = 0x0000000000000000
[task 2023-10-27T04:55:17.464Z] 04:55:17     INFO -       rsp = 0x00007ffc043b6fd0    r12 = 0x0000000000000000
[task 2023-10-27T04:55:17.464Z] 04:55:17     INFO -       r13 = 0x00007fa7967c0710    r14 = 0x00007fa7967c05b0
[task 2023-10-27T04:55:17.465Z] 04:55:17     INFO -       r15 = 0x00007fa7811bc4b8    rip = 0x00007fa785b7adab
[task 2023-10-27T04:55:17.465Z] 04:55:17     INFO -      Found by: call frame info
[task 2023-10-27T04:55:17.465Z] 04:55:17     INFO -  20  libxul.so!XRE_main(int, char**, mozilla::BootstrapConfig const&) [nsAppRunner.cpp:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 5940 + 0xf]
[task 2023-10-27T04:55:17.465Z] 04:55:17     INFO -       rbx = 0x00007ffc043b71f0    rbp = 0x0000000000000003
[task 2023-10-27T04:55:17.465Z] 04:55:17     INFO -       rsp = 0x00007ffc043b7050    r12 = 0x000055d149051fd7
[task 2023-10-27T04:55:17.465Z] 04:55:17     INFO -       r13 = 0x00007ffc043ba4e3    r14 = 0x00007ffc043b8308
[task 2023-10-27T04:55:17.466Z] 04:55:17     INFO -       r15 = 0x00007ffc043b7050    rip = 0x00007fa785b79da1
[task 2023-10-27T04:55:17.466Z] 04:55:17     INFO -      Found by: call frame info
[task 2023-10-27T04:55:17.466Z] 04:55:17     INFO -  21  firefox-bin!do_main(int, char**, char**) [nsBrowserApp.cpp:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 227]
[task 2023-10-27T04:55:17.466Z] 04:55:17     INFO -      Found by: inlining
[task 2023-10-27T04:55:17.466Z] 04:55:17     INFO -  22  firefox-bin!main [nsBrowserApp.cpp:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 445 + 0x78]
[task 2023-10-27T04:55:17.466Z] 04:55:17     INFO -       rbx = 0x00007ffc043b8328    rbp = 0x0000000000000070
[task 2023-10-27T04:55:17.467Z] 04:55:17     INFO -       rsp = 0x00007ffc043b71d0    r12 = 0x000055d149051fd7
[task 2023-10-27T04:55:17.467Z] 04:55:17     INFO -       r13 = 0x00007ffc043ba4e3    r14 = 0x0000000000000003
[task 2023-10-27T04:55:17.467Z] 04:55:17     INFO -       r15 = 0x00007ffc043b8308    rip = 0x000055d1490ce216
[task 2023-10-27T04:55:17.467Z] 04:55:17     INFO -      Found by: call frame info
[task 2023-10-27T04:55:17.467Z] 04:55:17     INFO -  23  libc.so.6 + 0x21bf6
[task 2023-10-27T04:55:17.467Z] 04:55:17     INFO -       rbx = 0x0000000000000000    rbp = 0x000055d1490e6510
[task 2023-10-27T04:55:17.468Z] 04:55:17     INFO -       rsp = 0x00007ffc043b8230    r12 = 0x000055d1490e63fe
[task 2023-10-27T04:55:17.468Z] 04:55:17     INFO -       r13 = 0x00007ffc043b8300    r14 = 0x0000000000000000
[task 2023-10-27T04:55:17.468Z] 04:55:17     INFO -       r15 = 0x0000000000000000    rip = 0x00007fa796a18bf7
[task 2023-10-27T04:55:17.468Z] 04:55:17     INFO -      Found by: call frame info
[task 2023-10-27T04:55:17.468Z] 04:55:17     INFO -  24  firefox-bin!mozilla::SHA1Sum::update(void const*, unsigned int) [SHA1.cpp:bf57d88eb2a3a61a5fa08f1a445dd7351f6e2b1d : 0 + 0x1]
[task 2023-10-27T04:55:17.468Z] 04:55:17     INFO -       rsp = 0x00007ffc043b8268    rip = 0x000055d1490e63fe
[task 2023-10-27T04:55:17.469Z] 04:55:17     INFO -      Found by: stack scanning
```