Bug: Intermittent <random_test> | application crashed [@ mozilla::dom::BrowsingContextGroup::Subscribe(mozilla::dom::ContentParent*)]
Status: RESOLVED
Priority: --
Resolution: DUPLICATE
Created: 2020-11-09 08:30:04+00:00
Resolved: 2020-11-16 06:05:15+00:00

**Filed by:** ncsoregi [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=321151272&repo=mozilla-central
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/bra8ewoORsCmzDK1FcEiqg/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2020-11-09T05:48:12.932Z] 05:48:12     INFO - PROCESS-CRASH | browser/base/content/test/popups/browser_popup_blocker_iframes.js | application crashed [@ mozilla::dom::BrowsingContextGroup::Subscribe(mozilla::dom::ContentParent*)]
[task 2020-11-09T05:48:12.932Z] 05:48:12     INFO - Mozilla crash reason: MOZ_DIAGNOSTIC_ASSERT(hostEntry && hostEntry.Data() == aProcess) (Cannot subscribe a non-host process)
[task 2020-11-09T05:48:12.933Z] 05:48:12     INFO - Crash dump filename: /tmp/tmpe1m708.mozrunner/minidumps/00e55e3f-f187-103e-ea4c-342a7aaf4b7f.dmp
[task 2020-11-09T05:48:12.933Z] 05:48:12     INFO - Operating system: Linux
[task 2020-11-09T05:48:12.934Z] 05:48:12     INFO -                   0.0.0 Linux 4.4.0-1014-aws #14taskcluster1-Ubuntu SMP Tue Apr 3 10:27:00 UTC 2018 x86_64
[task 2020-11-09T05:48:12.935Z] 05:48:12     INFO - CPU: amd64
[task 2020-11-09T05:48:12.936Z] 05:48:12     INFO -      family 6 model 85 stepping 7
[task 2020-11-09T05:48:12.937Z] 05:48:12     INFO -      2 CPUs
[task 2020-11-09T05:48:12.938Z] 05:48:12     INFO - 
[task 2020-11-09T05:48:12.939Z] 05:48:12     INFO - GPU: UNKNOWN
[task 2020-11-09T05:48:12.940Z] 05:48:12     INFO - 
[task 2020-11-09T05:48:12.940Z] 05:48:12     INFO - Crash reason:  SIGSEGV /SEGV_MAPERR
[task 2020-11-09T05:48:12.941Z] 05:48:12     INFO - Crash address: 0x0
[task 2020-11-09T05:48:12.942Z] 05:48:12     INFO - Process uptime: not available
[task 2020-11-09T05:48:12.943Z] 05:48:12     INFO - 
[task 2020-11-09T05:48:12.944Z] 05:48:12     INFO - Thread 0 (crashed)
[task 2020-11-09T05:48:12.945Z] 05:48:12     INFO -  0  libxul.so!mozilla::dom::BrowsingContextGroup::Subscribe(mozilla::dom::ContentParent*) [BrowsingContextGroup.cpp:7daa0ef24433e58574f3ea0008ad9abb3485f4c6 : 134 + 0x11]
[task 2020-11-09T05:48:12.946Z] 05:48:12     INFO -     rax = 0x00007f781dde39de   rdx = 0x00007f77f4bd6f00
[task 2020-11-09T05:48:12.947Z] 05:48:12     INFO -     rcx = 0x000055c58218f430   rbx = 0x00007f77f5068580
[task 2020-11-09T05:48:12.948Z] 05:48:12     INFO -     rsi = 0x0000000000000000   rdi = 0x00007f77f5068600
[task 2020-11-09T05:48:12.948Z] 05:48:12     INFO -     rbp = 0x00007ffebda4b1a0   rsp = 0x00007ffebda4b150
[task 2020-11-09T05:48:12.949Z] 05:48:12     INFO -      r8 = 0x00007f77f5bc3000    r9 = 0x00007f77f5bc36f0
[task 2020-11-09T05:48:12.950Z] 05:48:12     INFO -     r10 = 0x00007f7829f00200   r11 = 0x0000000000000001
[task 2020-11-09T05:48:12.951Z] 05:48:12     INFO -     r12 = 0x0000000000000000   r13 = 0x00007f77f5bc3000
[task 2020-11-09T05:48:12.952Z] 05:48:12     INFO -     r14 = 0x00007f77f5bc3000   r15 = 0x00007f77f5bc36f0
[task 2020-11-09T05:48:12.952Z] 05:48:12     INFO -     rip = 0x00007f781cf728f4
[task 2020-11-09T05:48:12.953Z] 05:48:12     INFO -     Found by: given as instruction pointer in context
[task 2020-11-09T05:48:12.953Z] 05:48:12     INFO -  1  libxul.so!mozilla::dom::ContentParent::LaunchSubprocessResolve(bool, mozilla::hal::ProcessPriority) [ContentParent.cpp:7daa0ef24433e58574f3ea0008ad9abb3485f4c6 : 2451 + 0x8b]
[task 2020-11-09T05:48:12.954Z] 05:48:12     INFO -     rbx = 0x00007ffebda4b330   rbp = 0x00007ffebda4b570
[task 2020-11-09T05:48:12.954Z] 05:48:12     INFO -     rsp = 0x00007ffebda4b1b0   r12 = 0x00007ffebda4b268
[task 2020-11-09T05:48:12.955Z] 05:48:12     INFO -     r13 = 0x00007f77f5bc3000   r14 = 0x00007f7815b974c0
[task 2020-11-09T05:48:12.955Z] 05:48:12     INFO -     r15 = 0x00007ffebda4b330   rip = 0x00007f781cc402fc
[task 2020-11-09T05:48:12.956Z] 05:48:12     INFO -     Found by: call frame info
[task 2020-11-09T05:48:12.956Z] 05:48:12     INFO -  2  libxul.so!mozilla::dom::ContentParent::WaitForLaunchAsync(mozilla::hal::ProcessPriority)::$_17::operator()() const [ContentParent.cpp:7daa0ef24433e58574f3ea0008ad9abb3485f4c6 : 1144 + 0xd]
[task 2020-11-09T05:48:12.957Z] 05:48:12     INFO -     rbx = 0x00007ffebda4b5c8   rbp = 0x00007ffebda4b5b0
[task 2020-11-09T05:48:12.957Z] 05:48:12     INFO -     rsp = 0x00007ffebda4b580   r12 = 0x00007f78204494b8
[task 2020-11-09T05:48:12.957Z] 05:48:12     INFO -     r13 = 0x8000000300000000   r14 = 0x00007ffebda4b5c8
[task 2020-11-09T05:48:12.958Z] 05:48:12     INFO -     r15 = 0x00007f77f48d7cb8   rip = 0x00007f781985c98b
[task 2020-11-09T05:48:12.958Z] 05:48:12     INFO -     Found by: call frame info
[task 2020-11-09T05:48:12.959Z] 05:48:12     INFO -  3  libxul.so!mozilla::MozPromise<int, mozilla::ipc::LaunchError, false>::ThenValue<mozilla::dom::ContentParent::WaitForLaunchAsync(mozilla::hal::ProcessPriority)::$_17, mozilla::dom::ContentParent::WaitForLaunchAsync(mozilla::hal::ProcessPriority)::$_18>::DoResolveOrRejectInternal(mozilla::MozPromise<int, mozilla::ipc::LaunchError, false>::ResolveOrRejectValue&) [MozPromise.h:7daa0ef24433e58574f3ea0008ad9abb3485f4c6 : 769 + 0x8]
[task 2020-11-09T05:48:12.959Z] 05:48:12     INFO -     rbx = 0x00007ffebda4b5c8   rbp = 0x00007ffebda4b5f0
[task 2020-11-09T05:48:12.960Z] 05:48:12     INFO -     rsp = 0x00007ffebda4b5c0   r12 = 0x00007f78204494b8
[task 2020-11-09T05:48:12.960Z] 05:48:12     INFO -     r13 = 0x0000000000000000   r14 = 0x00007f77f48d7c80
[task 2020-11-09T05:48:12.961Z] 05:48:12     INFO -     r15 = 0x0000000000000032   rip = 0x00007f781985c51f
[task 2020-11-09T05:48:12.961Z] 05:48:12     INFO -     Found by: call frame info
[task 2020-11-09T05:48:12.961Z] 05:48:12     INFO -  4  libxul.so!mozilla::MozPromise<int, mozilla::ipc::LaunchError, false>::ThenValueBase::ResolveOrRejectRunnable::Run() [MozPromise.h:7daa0ef24433e58574f3ea0008ad9abb3485f4c6 : 410 + 0x1b]
[task 2020-11-09T05:48:12.962Z] 05:48:12     INFO -     rbx = 0x00007f77f10ce040   rbp = 0x00007ffebda4b610
[task 2020-11-09T05:48:12.962Z] 05:48:12     INFO -     rsp = 0x00007ffebda4b600   r12 = 0x00007f78204494b8
[task 2020-11-09T05:48:12.963Z] 05:48:12     INFO -     r13 = 0x0000000000000000   r14 = 0x00007f77f107f100
[task 2020-11-09T05:48:12.963Z] 05:48:12     INFO -     r15 = 0x0000000000000032   rip = 0x00007f781c581f9d
[task 2020-11-09T05:48:12.964Z] 05:48:12     INFO -     Found by: call frame info
[task 2020-11-09T05:48:12.964Z] 05:48:12     INFO -  5  libxul.so!mozilla::TaskController::DoExecuteNextTaskOnlyMainThreadInternal(mozilla::detail::BaseAutoLock<mozilla::Mutex&> const&) [TaskController.cpp:7daa0ef24433e58574f3ea0008ad9abb3485f4c6 : 720 + 0xc5]
[task 2020-11-09T05:48:12.965Z] 05:48:12     INFO -     rbx = 0x00007ffebda4b6b0   rbp = 0x00007ffebda4bb20
[task 2020-11-09T05:48:12.965Z] 05:48:12     INFO -     rsp = 0x00007ffebda4b620   r12 = 0x00007f78204494b8
[task 2020-11-09T05:48:12.966Z] 05:48:12     INFO -     r13 = 0x0000000000000000   r14 = 0x00007f77f107f100
[task 2020-11-09T05:48:12.966Z] 05:48:12     INFO -     r15 = 0x0000000000000032   rip = 0x00007f781bb36a89
[task 2020-11-09T05:48:12.967Z] 05:48:12     INFO -     Found by: call frame info
[task 2020-11-09T05:48:12.967Z] 05:48:12     INFO -  6  libxul.so!mozilla::detail::RunnableFunction<mozilla::TaskController::InitializeInternal()::$_3>::Run() [nsThreadUtils.h:7daa0ef24433e58574f3ea0008ad9abb3485f4c6 : 577 + 0x21]
[task 2020-11-09T05:48:12.967Z] 05:48:12     INFO -     rbx = 0x00007f7814957da0   rbp = 0x00007ffebda4bb60
[task 2020-11-09T05:48:12.970Z] 05:48:12     INFO -     rsp = 0x00007ffebda4bb30   r12 = 0x00000126444de886
[task 2020-11-09T05:48:12.971Z] 05:48:12     INFO -     r13 = 0x00007f7815bed5a0   r14 = 0x00007ffebda4bb38
[task 2020-11-09T05:48:12.971Z] 05:48:12     INFO -     r15 = 0x0000000ca06b23ea   rip = 0x00007f781bb37cfb
[task 2020-11-09T05:48:12.972Z] 05:48:12     INFO -     Found by: call frame info
[task 2020-11-09T05:48:12.972Z] 05:48:12     INFO -  7  libxul.so!nsThread::ProcessNextEvent(bool, bool*) [nsThread.cpp:7daa0ef24433e58574f3ea0008ad9abb3485f4c6 : 1197 + 0x10]
[task 2020-11-09T05:48:12.973Z] 05:48:12     INFO -     rbx = 0x00007f7815be5d00   rbp = 0x00007ffebda4bca0
[task 2020-11-09T05:48:12.973Z] 05:48:12     INFO -     rsp = 0x00007ffebda4bb70   r12 = 0x00000126444de886
[task 2020-11-09T05:48:12.974Z] 05:48:12     INFO -     r13 = 0x00007f7815bed5a0   r14 = 0x00007f7815b8f310
[task 2020-11-09T05:48:12.974Z] 05:48:12     INFO -     r15 = 0x0000000ca06b23ea   rip = 0x00007f781bb3bc96
[task 2020-11-09T05:48:12.975Z] 05:48:12     INFO -     Found by: call frame info
[task 2020-11-09T05:48:12.975Z] 05:48:12     INFO -  8  libxul.so!mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) [MessagePump.cpp:7daa0ef24433e58574f3ea0008ad9abb3485f4c6 : 87 + 0x2b]
[task 2020-11-09T05:48:12.976Z] 05:48:12     INFO -     rbx = 0x00007f7829ecf860   rbp = 0x00007ffebda4bcf0
[task 2020-11-09T05:48:12.976Z] 05:48:12     INFO -     rsp = 0x00007ffebda4bcb0   r12 = 0x00007f7815bf6fe0
[task 2020-11-09T05:48:12.977Z] 05:48:12     INFO -     r13 = 0x0003001100000001   r14 = 0x00007f7815bf6fc0
[task 2020-11-09T05:48:12.977Z] 05:48:12     INFO -     r15 = 0x00007f7815b8f310   rip = 0x00007f781bb71820
[task 2020-11-09T05:48:12.978Z] 05:48:12     INFO -     Found by: call frame info
[task 2020-11-09T05:48:12.978Z] 05:48:12     INFO -  9  libxul.so!MessageLoop::Run() [message_loop.cc:7daa0ef24433e58574f3ea0008ad9abb3485f4c6 : 309 + 0xc]
[task 2020-11-09T05:48:12.979Z] 05:48:12     INFO -     rbx = 0x00007ffebda4bd08   rbp = 0x00007ffebda4bd30
[task 2020-11-09T05:48:12.979Z] 05:48:12     INFO -     rsp = 0x00007ffebda4bd00   r12 = 0x00007ffebda4bda8
[task 2020-11-09T05:48:12.980Z] 05:48:12     INFO -     r13 = 0x0003001100000000   r14 = 0x00007f7815b8f310
[task 2020-11-09T05:48:12.980Z] 05:48:12     INFO -     r15 = 0x00007ffebda4bdf0   rip = 0x00007f781c56398f
[task 2020-11-09T05:48:12.980Z] 05:48:12     INFO -     Found by: call frame info
[task 2020-11-09T05:48:12.981Z] 05:48:12     INFO - 10  libxul.so!nsBaseAppShell::Run() [nsBaseAppShell.cpp:7daa0ef24433e58574f3ea0008ad9abb3485f4c6 : 137 + 0xd]
[task 2020-11-09T05:48:12.981Z] 05:48:12     INFO -     rbx = 0x00007f78148141c0   rbp = 0x00007ffebda4bd50
[task 2020-11-09T05:48:12.982Z] 05:48:12     INFO -     rsp = 0x00007ffebda4bd40   r12 = 0x00007ffebda4bda8
[task 2020-11-09T05:48:12.982Z] 05:48:12     INFO -     r13 = 0x0003001100000000   r14 = 0x00007f7815b8f310
[task 2020-11-09T05:48:12.983Z] 05:48:12     INFO -     r15 = 0x00007ffebda4bdf0   rip = 0x00007f781cd0b1f9
[task 2020-11-09T05:48:12.983Z] 05:48:12     INFO -     Found by: call frame info
[task 2020-11-09T05:48:12.984Z] 05:48:12     INFO - 11  libxul.so!nsAppStartup::Run() [nsAppStartup.cpp:7daa0ef24433e58574f3ea0008ad9abb3485f4c6 : 270 + 0xa]
[task 2020-11-09T05:48:12.984Z] 05:48:12     INFO -     rbx = 0x00007f7815b78f10   rbp = 0x00007ffebda4bd80
[task 2020-11-09T05:48:12.985Z] 05:48:12     INFO -     rsp = 0x00007ffebda4bd60   r12 = 0x00007ffebda4bda8
[task 2020-11-09T05:48:12.985Z] 05:48:12     INFO -     r13 = 0x0003001100000000   r14 = 0x00007ffebda4bfb0
[task 2020-11-09T05:48:12.986Z] 05:48:12     INFO -     r15 = 0x00007ffebda4bdf0   rip = 0x00007f781a6d33c3
[task 2020-11-09T05:48:12.986Z] 05:48:12     INFO -     Found by: call frame info
[task 2020-11-09T05:48:12.987Z] 05:48:12     INFO - 12  libxul.so!XREMain::XRE_mainRun() [nsAppRunner.cpp:7daa0ef24433e58574f3ea0008ad9abb3485f4c6 : 5091 + 0xd]
[task 2020-11-09T05:48:12.987Z] 05:48:12     INFO -     rbx = 0x0000000000000077   rbp = 0x00007ffebda4bf10
[task 2020-11-09T05:48:12.988Z] 05:48:12     INFO -     rsp = 0x00007ffebda4bd90   r12 = 0x00007ffebda4bda8
[task 2020-11-09T05:48:12.988Z] 05:48:12     INFO -     r13 = 0x0003001100000000   r14 = 0x00007ffebda4bfb0
[task 2020-11-09T05:48:12.988Z] 05:48:12     INFO -     r15 = 0x00007ffebda4bdf0   rip = 0x00007f781a7583fc
[task 2020-11-09T05:48:12.989Z] 05:48:12     INFO -     Found by: call frame info
[task 2020-11-09T05:48:12.989Z] 05:48:12     INFO - 13  libxul.so!XREMain::XRE_main(int, char**, mozilla::BootstrapConfig const&) [nsAppRunner.cpp:7daa0ef24433e58574f3ea0008ad9abb3485f4c6 : 5283 + 0x8]
[task 2020-11-09T05:48:12.989Z] 05:48:12     INFO -     rbx = 0x00007f7815ba53a8   rbp = 0x00007ffebda4bfa0
[task 2020-11-09T05:48:12.990Z] 05:48:12     INFO -     rsp = 0x00007ffebda4bf20   r12 = 0x00007ffebda4bfb0
[task 2020-11-09T05:48:12.990Z] 05:48:12     INFO -     r13 = 0x000055c5821780e1   r14 = 0x0000000000000000
[task 2020-11-09T05:48:12.991Z] 05:48:12     INFO -     r15 = 0x0000000000000000   rip = 0x00007f781a758d1a
[task 2020-11-09T05:48:12.991Z] 05:48:12     INFO -     Found by: call frame info
[task 2020-11-09T05:48:12.991Z] 05:48:12     INFO - 14  libxul.so!XRE_main(int, char**, mozilla::BootstrapConfig const&) [nsAppRunner.cpp:7daa0ef24433e58574f3ea0008ad9abb3485f4c6 : 5339 + 0x10]
[task 2020-11-09T05:48:12.992Z] 05:48:12     INFO -     rbx = 0x0000000000000005   rbp = 0x00007ffebda4c0f0
[task 2020-11-09T05:48:12.992Z] 05:48:12     INFO -     rsp = 0x00007ffebda4bfb0   r12 = 0x00007ffebda4bfb0
[task 2020-11-09T05:48:12.992Z] 05:48:12     INFO -     r13 = 0x000055c5821780e1   r14 = 0x00007ffebda4c140
[task 2020-11-09T05:48:12.993Z] 05:48:12     INFO -     r15 = 0x00007ffebda4d258   rip = 0x00007f781a7591bc
[task 2020-11-09T05:48:12.994Z] 05:48:12     INFO -     Found by: call frame info
[task 2020-11-09T05:48:12.994Z] 05:48:12     INFO - 15  firefox-bin!main [nsBrowserApp.cpp:7daa0ef24433e58574f3ea0008ad9abb3485f4c6 : 336 + 0xa1]
[task 2020-11-09T05:48:12.995Z] 05:48:12     INFO -     rbx = 0x00007ffebda4c12c   rbp = 0x00007ffebda4d170
[task 2020-11-09T05:48:12.996Z] 05:48:12     INFO -     rsp = 0x00007ffebda4c100   r12 = 0x00007ffebda4d288
[task 2020-11-09T05:48:12.996Z] 05:48:12     INFO -     r13 = 0x000055c5821780e1   r14 = 0x00007ffebda4d258
[task 2020-11-09T05:48:12.997Z] 05:48:12     INFO -     r15 = 0x00007ffebda4c140   rip = 0x000055c582162919
[task 2020-11-09T05:48:12.997Z] 05:48:12     INFO -     Found by: call frame info
[task 2020-11-09T05:48:12.998Z] 05:48:12     INFO - 16  libc.so.6!__libc_start_main [libc-start.c : 310 + 0x1a]
[task 2020-11-09T05:48:12.999Z] 05:48:12     INFO -     rbx = 0x0000000000000000   rbp = 0x000055c582177810
[task 2020-11-09T05:48:12.999Z] 05:48:12     INFO -     rsp = 0x00007ffebda4d180   r12 = 0x000055c582162579
[task 2020-11-09T05:48:13.000Z] 05:48:13     INFO -     r13 = 0x00007ffebda4d250   r14 = 0x0000000000000000
[task 2020-11-09T05:48:13.001Z] 05:48:13     INFO -     r15 = 0x0000000000000000   rip = 0x00007f782a08ab97
[task 2020-11-09T05:48:13.001Z] 05:48:13     INFO -     Found by: call frame info
[task 2020-11-09T05:48:13.002Z] 05:48:13     INFO - 17  firefox-bin!_start + 0x29
[task 2020-11-09T05:48:13.003Z] 05:48:13     INFO -     rbx = 0x0000000000000000   rbp = 0x0000000000000000
[task 2020-11-09T05:48:13.003Z] 05:48:13     INFO -     rsp = 0x00007ffebda4d240   r12 = 0x000055c582162579
[task 2020-11-09T05:48:13.004Z] 05:48:13     INFO -     r13 = 0x00007ffebda4d250   r14 = 0x0000000000000000
[task 2020-11-09T05:48:13.005Z] 05:48:13     INFO -     r15 = 0x0000000000000000   rip = 0x000055c5821625a2
[task 2020-11-09T05:48:13.005Z] 05:48:13     INFO -     Found by: call frame info
[task 2020-11-09T05:48:13.006Z] 05:48:13     INFO - ```