Bug: Intermittent None [@ g_main_context_prepare] | single tracking bug
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2023-10-07 14:48:30+00:00
Resolved: 2023-11-03 12:01:31+00:00

**Filed by:** abutkovits [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=431695317&repo=try
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/QnjT1lMgTd61whMfYymoqw/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2023-10-07T13:21:23.111Z] 13:21:23     INFO -  PID 3141 | Loaded: http://56.com-talos/fis/tp5n/56.com/www.56.com/index.html
[task 2023-10-07T13:21:23.112Z] 13:21:23     INFO -  PID 3141 | Loads complete - starting tab switches
[task 2023-10-07T13:33:39.986Z] 13:33:39     INFO -  Timeout waiting for test completion; killing browser...
[task 2023-10-07T13:33:40.497Z] 13:33:40     INFO -  mozcrash checking /tmp/tmp6fw6sxyf/profile/minidumps for minidumps...
[task 2023-10-07T13:33:40.497Z] 13:33:40     INFO -  mozcrash Downloading symbols from: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/UZCBB8RzRt28jxxPHKRwrA/artifacts/public/build/target.crashreporter-symbols.zip
[task 2023-10-07T13:33:52.638Z] 13:33:52     INFO -  mozcrash Copy/paste: /home/cltbld/tasks/task_169668031296458/fetches/minidump-stackwalk/minidump-stackwalk --symbols-url=https://symbols.mozilla.org/ --cyborg=/tmp/tmp2etllvfv/0b18c854-16ce-d9e2-5930-3f0f7037b237.trace /tmp/tmp6fw6sxyf/profile/minidumps/0b18c854-16ce-d9e2-5930-3f0f7037b237.dmp /tmp/tmpnjw1vwzu
[task 2023-10-07T13:33:58.461Z] 13:33:58     INFO -  mozcrash Saved minidump as /home/cltbld/tasks/task_169668031296458/build/blobber_upload_dir/0b18c854-16ce-d9e2-5930-3f0f7037b237.dmp
[task 2023-10-07T13:33:58.461Z] 13:33:58     INFO -  PROCESS-CRASH | None [@ g_main_context_prepare] | tabswitch
[task 2023-10-07T13:33:58.461Z] 13:33:58     INFO -  Crash dump filename: /tmp/tmp6fw6sxyf/profile/minidumps/0b18c854-16ce-d9e2-5930-3f0f7037b237.dmp
[task 2023-10-07T13:33:58.462Z] 13:33:58     INFO -  Process type: unknown
[task 2023-10-07T13:33:58.462Z] 13:33:58     INFO -  Process pid: unknown
[task 2023-10-07T13:33:58.462Z] 13:33:58     INFO -  Operating system: Linux
[task 2023-10-07T13:33:58.462Z] 13:33:58     INFO -                    4.15.0-213-generic #224-Ubuntu SMP Mon Jun 19 13:30:12 UTC 2023
[task 2023-10-07T13:33:58.462Z] 13:33:58     INFO -  CPU: amd64
[task 2023-10-07T13:33:58.462Z] 13:33:58     INFO -       family 6 model 94 stepping 3
[task 2023-10-07T13:33:58.462Z] 13:33:58     INFO -       8 CPUs
[task 2023-10-07T13:33:58.462Z] 13:33:58     INFO -  Linux Ubuntu 18.04 - bionic (Ubuntu 18.04.5 LTS)
[task 2023-10-07T13:33:58.462Z] 13:33:58     INFO -  Crash reason:  SIGABRT
[task 2023-10-07T13:33:58.463Z] 13:33:58     INFO -  Crash address: 0x3ee00000b13
[task 2023-10-07T13:33:58.463Z] 13:33:58     INFO -  Crashing instruction: `test rax, rax`
[task 2023-10-07T13:33:58.463Z] 13:33:58     INFO -  No memory accessed by instruction
[task 2023-10-07T13:33:58.463Z] 13:33:58     INFO -  Process uptime: not available
[task 2023-10-07T13:33:58.463Z] 13:33:58     INFO -  Thread 0 firefox-bin (crashed)
[task 2023-10-07T13:33:58.463Z] 13:33:58     INFO -   0  libglib-2.0.so.0!g_main_context_prepare [gmain.c : 3469 + 0x0]
[task 2023-10-07T13:33:58.463Z] 13:33:58     INFO -       rax = 0x00007f4130aaeb20    rdx = 0x00007f4120825480
[task 2023-10-07T13:33:58.463Z] 13:33:58     INFO -       rcx = 0x0000000000000001    rbx = 0x00007f412160a030
[task 2023-10-07T13:33:58.464Z] 13:33:58     INFO -       rsi = 0x00007ffff2329c68    rdi = 0x00007f4136e38580
[task 2023-10-07T13:33:58.464Z] 13:33:58     INFO -       rbp = 0x00007ffff2329c70    rsp = 0x00007ffff2329c50
[task 2023-10-07T13:33:58.464Z] 13:33:58     INFO -        r8 = 0x0000000000000000     r9 = 0x00007f41208b5ce0
[task 2023-10-07T13:33:58.464Z] 13:33:58     INFO -       r10 = 0x00007ffff2329bd0    r11 = 0x0000000000000000
[task 2023-10-07T13:33:58.464Z] 13:33:58     INFO -       r12 = 0x0000000000000000    r13 = 0x00007ffff2329c68
[task 2023-10-07T13:33:58.464Z] 13:33:58     INFO -       r14 = 0x000000007fffffff    r15 = 0x00007ffff2329cf0
[task 2023-10-07T13:33:58.464Z] 13:33:58     INFO -       rip = 0x00007f4130a67c1f
[task 2023-10-07T13:33:58.465Z] 13:33:58     INFO -      Found by: given as instruction pointer in context
[task 2023-10-07T13:33:58.465Z] 13:33:58     INFO -   1  libglib-2.0.so.0!g_main_context_iterate.isra.26 [gmain.c : 3882 + 0xc]
[task 2023-10-07T13:33:58.465Z] 13:33:58     INFO -       rbx = 0x00007f412160a030    rbp = 0x0000000000000000
[task 2023-10-07T13:33:58.465Z] 13:33:58     INFO -       rsp = 0x00007ffff2329ce0    r12 = 0x00007f411590b500
[task 2023-10-07T13:33:58.465Z] 13:33:58     INFO -       r13 = 0x00007ffff2329cf4    r14 = 0x0000000000000000
[task 2023-10-07T13:33:58.465Z] 13:33:58     INFO -       r15 = 0x0000000000000004    rip = 0x00007f4130a6861b
[task 2023-10-07T13:33:58.465Z] 13:33:58     INFO -      Found by: call frame info
[task 2023-10-07T13:33:58.466Z] 13:33:58     INFO -   2  libglib-2.0.so.0!g_main_context_iteration [gmain.c : 3963 + 0x13]
[task 2023-10-07T13:33:58.466Z] 13:33:58     INFO -       rbx = 0x00007f412160a030    rbp = 0x0000000000000000
[task 2023-10-07T13:33:58.466Z] 13:33:58     INFO -       rsp = 0x00007ffff2329d40    r12 = 0x0000000000000000
[task 2023-10-07T13:33:58.466Z] 13:33:58     INFO -       r13 = 0x00007f41291174d0    r14 = 0x0000000000000000
[task 2023-10-07T13:33:58.466Z] 13:33:58     INFO -       r15 = 0x00007f41208b5b08    rip = 0x00007f4130a687fc
[task 2023-10-07T13:33:58.466Z] 13:33:58     INFO -      Found by: call frame info
[task 2023-10-07T13:33:58.467Z] 13:33:58     INFO -   3  libxul.so!nsAppShell::ProcessNextNativeEvent(bool) [nsAppShell.cpp:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 418]
[task 2023-10-07T13:33:58.467Z] 13:33:58     INFO -      Found by: inlining
[task 2023-10-07T13:33:58.467Z] 13:33:58     INFO -   4  libxul.so!nsBaseAppShell::DoProcessNextNativeEvent(bool) [nsBaseAppShell.cpp:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 131]
[task 2023-10-07T13:33:58.467Z] 13:33:58     INFO -      Found by: inlining
[task 2023-10-07T13:33:58.467Z] 13:33:58     INFO -   5  libxul.so!nsBaseAppShell::OnProcessNextEvent(nsIThreadInternal*, bool) [nsBaseAppShell.cpp:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 267]
[task 2023-10-07T13:33:58.467Z] 13:33:58     INFO -      Found by: inlining
[task 2023-10-07T13:33:58.468Z] 13:33:58     INFO -   6  libxul.so!{virtual override thunk({offset(-8)}, nsBaseAppShell::OnProcessNextEvent(nsIThreadInternal*, bool))} [nsBaseAppShell.cpp:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 0]
[task 2023-10-07T13:33:58.468Z] 13:33:58     INFO -      Found by: inlining
[task 2023-10-07T13:33:58.468Z] 13:33:58     INFO -   7  libxul.so!nsThread::ProcessNextEvent(bool, bool*) [nsThread.cpp:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 1113]
[task 2023-10-07T13:33:58.468Z] 13:33:58     INFO -      Found by: inlining
[task 2023-10-07T13:33:58.469Z] 13:33:58     INFO -   8  libxul.so!NS_ProcessNextEvent(nsIThread*, bool) [nsThreadUtils.cpp:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 480 + 0x76d]
[task 2023-10-07T13:33:58.469Z] 13:33:58     INFO -       rbx = 0x00007f4121605820    rbp = 0x00007ffff2329ef0
[task 2023-10-07T13:33:58.469Z] 13:33:58     INFO -       rsp = 0x00007ffff2329d60    r12 = 0x0000000000000000
[task 2023-10-07T13:33:58.469Z] 13:33:58     INFO -       r13 = 0x00007f41291174d0    r14 = 0x0000000000000000
[task 2023-10-07T13:33:58.469Z] 13:33:58     INFO -       r15 = 0x00007f41208b5b08    rip = 0x00007f412551791b
[task 2023-10-07T13:33:58.469Z] 13:33:58     INFO -      Found by: call frame info
[task 2023-10-07T13:33:58.470Z] 13:33:58     INFO -   9  libxul.so!mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) [MessagePump.cpp:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 85 + 0x6]
[task 2023-10-07T13:33:58.470Z] 13:33:58     INFO -       rbx = 0x00007f4120806688    rbp = 0x00007ffff232a0b0
[task 2023-10-07T13:33:58.470Z] 13:33:58     INFO -       rsp = 0x00007ffff2329f00    r12 = 0x00007f410616a430
[task 2023-10-07T13:33:58.470Z] 13:33:58     INFO -       r13 = 0x00007f41216fdcc0    r14 = 0x00007f4120806660
[task 2023-10-07T13:33:58.470Z] 13:33:58     INFO -       r15 = 0x00000000290b6001    rip = 0x00007f41255160dc
[task 2023-10-07T13:33:58.470Z] 13:33:58     INFO -      Found by: call frame info
[task 2023-10-07T13:33:58.471Z] 13:33:58     INFO -  10  libxul.so!MessageLoop::RunInternal() [message_loop.cc:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 370]
[task 2023-10-07T13:33:58.471Z] 13:33:58     INFO -      Found by: inlining
[task 2023-10-07T13:33:58.471Z] 13:33:58     INFO -  11  libxul.so!MessageLoop::RunHandler() [message_loop.cc:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 363]
[task 2023-10-07T13:33:58.471Z] 13:33:58     INFO -      Found by: inlining
[task 2023-10-07T13:33:58.471Z] 13:33:58     INFO -  12  libxul.so!MessageLoop::Run() [message_loop.cc:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 345]
[task 2023-10-07T13:33:58.471Z] 13:33:58     INFO -      Found by: inlining
[task 2023-10-07T13:33:58.472Z] 13:33:58     INFO -  13  libxul.so!nsBaseAppShell::Run() [nsBaseAppShell.cpp:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 148 + 0x3e]
[task 2023-10-07T13:33:58.472Z] 13:33:58     INFO -       rbx = 0x00007f41208b5b00    rbp = 0x00007ffff232a100
[task 2023-10-07T13:33:58.472Z] 13:33:58     INFO -       rsp = 0x00007ffff232a0c0    r12 = 0x00007ffff232a0c0
[task 2023-10-07T13:33:58.472Z] 13:33:58     INFO -       r13 = 0x00007ffff232a1b0    r14 = 0x00007f4121605820
[task 2023-10-07T13:33:58.472Z] 13:33:58     INFO -       r15 = 0x0000000000000000    rip = 0x00007f4126bc37be
[task 2023-10-07T13:33:58.472Z] 13:33:58     INFO -      Found by: call frame info
[task 2023-10-07T13:33:58.473Z] 13:33:58     INFO -  14  libxul.so!nsAppStartup::Run() [nsAppStartup.cpp:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 296 + 0x5]
[task 2023-10-07T13:33:58.473Z] 13:33:58     INFO -       rbx = 0x00007f4121680880    rbp = 0x00007ffff232a130
[task 2023-10-07T13:33:58.473Z] 13:33:58     INFO -       rsp = 0x00007ffff232a110    r12 = 0x00007f4121680880
[task 2023-10-07T13:33:58.473Z] 13:33:58     INFO -       r13 = 0x00007ffff232a1b0    r14 = 0x00007ffff232a378
[task 2023-10-07T13:33:58.473Z] 13:33:58     INFO -       r15 = 0x00007f41198e22b0    rip = 0x00007f41268b7ad5
[task 2023-10-07T13:33:58.473Z] 13:33:58     INFO -      Found by: call frame info
[task 2023-10-07T13:33:58.474Z] 13:33:58     INFO -  15  libxul.so!XREMain::XRE_mainRun() [nsAppRunner.cpp:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 5675 + 0x9]
[task 2023-10-07T13:33:58.474Z] 13:33:58     INFO -       rbx = 0x0000000000000000    rbp = 0x00007ffff232a2e0
[task 2023-10-07T13:33:58.474Z] 13:33:58     INFO -       rsp = 0x00007ffff232a140    r12 = 0x00007f4121680880
[task 2023-10-07T13:33:58.474Z] 13:33:58     INFO -       r13 = 0x00007ffff232a1b0    r14 = 0x00007ffff232a378
[task 2023-10-07T13:33:58.474Z] 13:33:58     INFO -       r15 = 0x00007f41198e22b0    rip = 0x00007f412603e8cb
[task 2023-10-07T13:33:58.474Z] 13:33:58     INFO -      Found by: call frame info
[task 2023-10-07T13:33:58.475Z] 13:33:58     INFO -  16  libxul.so!XREMain::XRE_main(int, char**, mozilla::BootstrapConfig const&) [nsAppRunner.cpp:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 5884 + 0x7]
[task 2023-10-07T13:33:58.475Z] 13:33:58     INFO -       rbx = 0x00007ffff232a378    rbp = 0x00007ffff232a360
[task 2023-10-07T13:33:58.475Z] 13:33:58     INFO -       rsp = 0x00007ffff232a2f0    r12 = 0x0000000000000000
[task 2023-10-07T13:33:58.475Z] 13:33:58     INFO -       r13 = 0x00007f4136ec0df0    r14 = 0x00007f4136ec03a0
[task 2023-10-07T13:33:58.475Z] 13:33:58     INFO -       r15 = 0x00007f41216bc488    rip = 0x00007f4125fdf58f
[task 2023-10-07T13:33:58.476Z] 13:33:58     INFO -      Found by: call frame info
[task 2023-10-07T13:33:58.476Z] 13:33:58     INFO -  17  libxul.so!XRE_main(int, char**, mozilla::BootstrapConfig const&) [nsAppRunner.cpp:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 5940 + 0x10]
[task 2023-10-07T13:33:58.476Z] 13:33:58     INFO -       rbx = 0x00007ffff232a530    rbp = 0x00007ffff232a4f0
[task 2023-10-07T13:33:58.476Z] 13:33:58     INFO -       rsp = 0x00007ffff232a370    r12 = 0x00007ffff232a378
[task 2023-10-07T13:33:58.476Z] 13:33:58     INFO -       r13 = 0x00007ffff232d4e4    r14 = 0x00007ffff232b648
[task 2023-10-07T13:33:58.477Z] 13:33:58     INFO -       r15 = 0x0000000000000003    rip = 0x00007f4125fde4e8
[task 2023-10-07T13:33:58.477Z] 13:33:58     INFO -      Found by: call frame info
[task 2023-10-07T13:33:58.477Z] 13:33:58     INFO -  18  firefox-bin!do_main(int, char**, char**) [nsBrowserApp.cpp:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 227]
[task 2023-10-07T13:33:58.477Z] 13:33:58     INFO -      Found by: inlining
[task 2023-10-07T13:33:58.477Z] 13:33:58     INFO -  19  firefox-bin!main [nsBrowserApp.cpp:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 445 + 0x7e]
[task 2023-10-07T13:33:58.477Z] 13:33:58     INFO -       rbx = 0x00007ffff232b668    rbp = 0x00007ffff232b560
[task 2023-10-07T13:33:58.478Z] 13:33:58     INFO -       rsp = 0x00007ffff232a500    r12 = 0x000055b0f26fffe5
[task 2023-10-07T13:33:58.478Z] 13:33:58     INFO -       r13 = 0x00007ffff232d4e4    r14 = 0x0000000000000003
[task 2023-10-07T13:33:58.478Z] 13:33:58     INFO -       r15 = 0x00007ffff232b648    rip = 0x000055b0f275e078
[task 2023-10-07T13:33:58.478Z] 13:33:58     INFO -      Found by: call frame info
[task 2023-10-07T13:33:58.478Z] 13:33:58     INFO -  20  libc.so.6 + 0x21bf6
[task 2023-10-07T13:33:58.478Z] 13:33:58     INFO -       rbx = 0x0000000000000000    rbp = 0x000055b0f2775eb0
[task 2023-10-07T13:33:58.478Z] 13:33:58     INFO -       rsp = 0x00007ffff232b570    r12 = 0x000055b0f2775da6
[task 2023-10-07T13:33:58.479Z] 13:33:58     INFO -       r13 = 0x00007ffff232b640    r14 = 0x0000000000000000
[task 2023-10-07T13:33:58.479Z] 13:33:58     INFO -       r15 = 0x0000000000000000    rip = 0x00007f41370f2bf7
[task 2023-10-07T13:33:58.479Z] 13:33:58     INFO -      Found by: call frame info
[task 2023-10-07T13:33:58.479Z] 13:33:58     INFO -  21  firefox-bin!mozilla::SHA1Sum::update(void const*, unsigned int) [SHA1.cpp:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 0 + 0x1]
[task 2023-10-07T13:33:58.479Z] 13:33:58     INFO -       rsp = 0x00007ffff232b5a8    rip = 0x000055b0f2775da6
[task 2023-10-07T13:33:58.479Z] 13:33:58     INFO -      Found by: stack scanning
[task 2023-10-07T13:33:58.480Z] 13:33:58     INFO -  22  ld-linux-x86-64.so.2 + 0x108d2
[task 2023-10-07T13:33:58.480Z] 13:33:58     INFO -       rsp = 0x00007ffff232b5f0    rip = 0x00007f41382348d3
[task 2023-10-07T13:33:58.480Z] 13:33:58     INFO -      Found by: stack scanning
[task 2023-10-07T13:33:58.480Z] 13:33:58     INFO -  23  libdl.so.2 + 0x202d7f
[task 2023-10-07T13:33:58.480Z] 13:33:58     INFO -       rsp = 0x00007ffff232b5f8    rip = 0x00007f4138003d80
[task 2023-10-07T13:33:58.480Z] 13:33:58     INFO -      Found by: stack scanning
[task 2023-10-07T13:33:58.480Z] 13:33:58     INFO -  24  libpthread.so.0 + 0x219baf
[task 2023-10-07T13:33:58.481Z] 13:33:58     INFO -       rsp = 0x00007ffff232b600    rip = 0x00007f413821ebb0
[task 2023-10-07T13:33:58.481Z] 13:33:58     INFO -      Found by: stack scanning
[task 2023-10-07T13:33:58.481Z] 13:33:58     INFO -  25  firefox-bin!mozilla::SHA1Sum::update(void const*, unsigned int) [SHA1.cpp:57650e781f8beefecc6f0e529e096a4a3b33d2ea : 0 + 0x1]
[task 2023-10-07T13:33:58.481Z] 13:33:58     INFO -       rsp = 0x00007ffff232b620    rip = 0x000055b0f2775da6
[task 2023-10-07T13:33:58.481Z] 13:33:58     INFO -      Found by: stack scanning
[task 2023-10-07T13:33:58.481Z] 13:33:58     INFO -  26  firefox-bin!_start + 0x28
[task 2023-10-07T13:33:58.481Z] 13:33:58     INFO -       rsp = 0x00007ffff232b630    rip = 0x000055b0f2775dcf
[task 2023-10-07T13:33:58.482Z] 13:33:58     INFO -      Found by: stack scanning
```