Bug: Intermittent browser/extensions/doh-rollout/test/unit/test_migrations.js | application crashed [@ __gcov_read_counter]
Status: RESOLVED
Priority: P3
Resolution: FIXED
Created: 2020-06-12 06:59:05+00:00
Resolved: 2020-07-12 22:26:21+00:00

**Filed by:** ncsoregi [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer.html#?job_id=306062668&repo=mozilla-central
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/JNU1DBpuS-6yASVESMLVJw/runs/0/artifacts/public/logs/live_backing.log

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>[task 2020-06-12T04:35:51.295Z] 04:35:51     INFO -  mozcrash Saved app info as /builds/worker/workspace/build/blobber_upload_dir/2cf342a0-93c1-651e-f21c-967f195e633f.extra
[task 2020-06-12T04:35:51.298Z] 04:35:51  WARNING -  PROCESS-CRASH | browser/extensions/doh-rollout/test/unit/test_localStorageMigration.js | application crashed [@ __gcov_read_counter]
[task 2020-06-12T04:35:51.299Z] 04:35:51     INFO -  Crash dump filename: /tmp/xpc-other-xsXoNG/2cf342a0-93c1-651e-f21c-967f195e633f.dmp
[task 2020-06-12T04:35:51.301Z] 04:35:51     INFO -  Operating system: Linux
[task 2020-06-12T04:35:51.301Z] 04:35:51     INFO -                    0.0.0 Linux 4.4.0-1014-aws #14taskcluster1-Ubuntu SMP Tue Apr 3 10:27:00 UTC 2018 x86_64
[task 2020-06-12T04:35:51.301Z] 04:35:51     INFO -  CPU: amd64
[task 2020-06-12T04:35:51.301Z] 04:35:51     INFO -       family 6 model 85 stepping 4
[task 2020-06-12T04:35:51.302Z] 04:35:51     INFO -       4 CPUs
[task 2020-06-12T04:35:51.302Z] 04:35:51     INFO -  GPU: UNKNOWN
[task 2020-06-12T04:35:51.302Z] 04:35:51     INFO -  Crash reason:  SIGSEGV /SEGV_MAPERR
[task 2020-06-12T04:35:51.302Z] 04:35:51     INFO -  Crash address: 0x5643f1af2000
[task 2020-06-12T04:35:51.302Z] 04:35:51     INFO -  Process uptime: not available
[task 2020-06-12T04:35:51.302Z] 04:35:51     INFO -  Thread 35 (crashed)
[task 2020-06-12T04:35:51.302Z] 04:35:51     INFO -   0  libxul.so!__gcov_read_counter [gcov-io.c : 540 + 0x0]
[task 2020-06-12T04:35:51.302Z] 04:35:51     INFO -      rax = 0x00005643f1af2000   rdx = 0x0000000000000000
[task 2020-06-12T04:35:51.302Z] 04:35:51     INFO -      rcx = 0x0000000000000001   rbx = 0x00007f1a31b8f630
[task 2020-06-12T04:35:51.303Z] 04:35:51     INFO -      rsi = 0x0000000000000090   rdi = 0x0000000000000002
[task 2020-06-12T04:35:51.303Z] 04:35:51     INFO -      rbp = 0x00007f1a31b8f780   rsp = 0x00007f1a07026b00
[task 2020-06-12T04:35:51.303Z] 04:35:51     INFO -       r8 = 0x0000000000000000    r9 = 0x00005643f1af0d20
[task 2020-06-12T04:35:51.303Z] 04:35:51     INFO -      r10 = 0x00007f1a054478e0   r11 = 0x0000000000000000
[task 2020-06-12T04:35:51.303Z] 04:35:51     INFO -      r12 = 0x00007f1a2fb91880   r13 = 0x00007f1a28f2cfe0
[task 2020-06-12T04:35:51.303Z] 04:35:51     INFO -      r14 = 0x00000000000001be   r15 = 0x00005643f1af0d00
[task 2020-06-12T04:35:51.303Z] 04:35:51     INFO -      rip = 0x00007f1a28f2da45
[task 2020-06-12T04:35:51.304Z] 04:35:51     INFO -      Found by: given as instruction pointer in context
[task 2020-06-12T04:35:51.304Z] 04:35:51     INFO -   1  libxul.so!__gcov_merge_add [libgcov-merge.c : 51 + 0x5]
[task 2020-06-12T04:35:51.304Z] 04:35:51     INFO -      rbx = 0x00007f1a31b8f630   rbp = 0x00007f1a31b8f780
[task 2020-06-12T04:35:51.304Z] 04:35:51     INFO -      rsp = 0x00007f1a07026b10   r12 = 0x00007f1a2fb91880
[task 2020-06-12T04:35:51.304Z] 04:35:51     INFO -      r13 = 0x00007f1a28f2cfe0   r14 = 0x00000000000001be
[task 2020-06-12T04:35:51.304Z] 04:35:51     INFO -      r15 = 0x00005643f1af0d00   rip = 0x00007f1a28f2cffd
[task 2020-06-12T04:35:51.305Z] 04:35:51     INFO -      Found by: call frame info
[task 2020-06-12T04:35:51.305Z] 04:35:51     INFO -   2  libxul.so!gcov_do_dump [libgcov-driver.c : 850 + 0x947]
[task 2020-06-12T04:35:51.305Z] 04:35:51     INFO -      rbx = 0x00007f1a2fb8a908   rbp = 0x0000000001a10000
[task 2020-06-12T04:35:51.305Z] 04:35:51     INFO -      rsp = 0x00007f1a07026b30   r12 = 0x00007f1a2fb91880
[task 2020-06-12T04:35:51.305Z] 04:35:51     INFO -      r13 = 0x00007f1a28f2cfe0   r14 = 0x00000000000001be
[task 2020-06-12T04:35:51.305Z] 04:35:51     INFO -      r15 = 0x00005643f1af0d00   rip = 0x00007f1a28f2eccf
[task 2020-06-12T04:35:51.305Z] 04:35:51     INFO -      Found by: call frame info
[task 2020-06-12T04:35:51.305Z] 04:35:51     INFO -   3  libxul.so!__gcov_dump_one [libgcov-driver.c : 871 + 0xe]
[task 2020-06-12T04:35:51.305Z] 04:35:51     INFO -      rbx = 0x00007f1a33ac0d40   rbp = 0x00007f1a0702b460
[task 2020-06-12T04:35:51.305Z] 04:35:51     INFO -      rsp = 0x00007f1a0702b340   r12 = 0x00007f1a09fee2a0
[task 2020-06-12T04:35:51.305Z] 04:35:51     INFO -      r13 = 0x00007f1a0702b560   r14 = 0x00007f1a0702b3f0
[task 2020-06-12T04:35:51.305Z] 04:35:51     INFO -      r15 = 0x00007f1a060e85e0   rip = 0x00007f1a28f2f1e2
[task 2020-06-12T04:35:51.306Z] 04:35:51     INFO -      Found by: call frame info
[task 2020-06-12T04:35:51.306Z] 04:35:51     INFO -   4  libxul.so!__gcov_dump_int [libgcov-interface.c : 164 + 0x8]
[task 2020-06-12T04:35:51.306Z] 04:35:51     INFO -      rbx = 0x00007f1a33ac0d40   rbp = 0x00007f1a0702b460
[task 2020-06-12T04:35:51.306Z] 04:35:51     INFO -      rsp = 0x00007f1a0702b350   r12 = 0x00007f1a09fee2a0
[task 2020-06-12T04:35:51.306Z] 04:35:51     INFO -      r13 = 0x00007f1a0702b560   r14 = 0x00007f1a0702b3f0
[task 2020-06-12T04:35:51.306Z] 04:35:51     INFO -      r15 = 0x00007f1a060e85e0   rip = 0x00007f1a28f2f378
[task 2020-06-12T04:35:51.306Z] 04:35:51     INFO -      Found by: call frame info
[task 2020-06-12T04:35:51.306Z] 04:35:51     INFO -   5  libxul.so!__gcov_flush [libgcov-interface.c : 88 + 0x5]
[task 2020-06-12T04:35:51.306Z] 04:35:51     INFO -      rbx = 0x0000000000000001   rbp = 0x00007f1a0702b460
[task 2020-06-12T04:35:51.306Z] 04:35:51     INFO -      rsp = 0x00007f1a0702b360   r12 = 0x00007f1a09fee2a0
[task 2020-06-12T04:35:51.306Z] 04:35:51     INFO -      r13 = 0x00007f1a0702b560   r14 = 0x00007f1a0702b3f0
[task 2020-06-12T04:35:51.307Z] 04:35:51     INFO -      r15 = 0x00007f1a060e85e0   rip = 0x00007f1a28f2d03f
[task 2020-06-12T04:35:51.307Z] 04:35:51     INFO -      Found by: call frame info
[task 2020-06-12T04:35:51.307Z] 04:35:51     INFO -   6  libxul.so!__gcov_fork [libgcov-interface.c : 179 + 0x5]
[task 2020-06-12T04:35:51.307Z] 04:35:51     INFO -      rbx = 0x0000000000000001   rbp = 0x00007f1a0702b460
[task 2020-06-12T04:35:51.307Z] 04:35:51     INFO -      rsp = 0x00007f1a0702b370   r12 = 0x00007f1a09fee2a0
[task 2020-06-12T04:35:51.307Z] 04:35:51     INFO -      r13 = 0x00007f1a0702b560   r14 = 0x00007f1a0702b3f0
[task 2020-06-12T04:35:51.307Z] 04:35:51     INFO -      r15 = 0x00007f1a060e85e0   rip = 0x00007f1a28f2d076
[task 2020-06-12T04:35:51.308Z] 04:35:51     INFO -      Found by: call frame info
[task 2020-06-12T04:35:51.308Z] 04:35:51     INFO -   7  libxul.so!base::LaunchApp(std::vector<std::string, std::allocator<std::string> > const&, base::LaunchOptions const&, int*) [process_util_linux.cc:a5cb1a40413ebfb37e68bc8961e5a46467f06d14 : 243 + 0x5]
[task 2020-06-12T04:35:51.308Z] 04:35:51     INFO -      rbx = 0x0000000000000001   rbp = 0x00007f1a0702b460
[task 2020-06-12T04:35:51.308Z] 04:35:51     INFO -      rsp = 0x00007f1a0702b380   r12 = 0x00007f1a09fee2a0
[task 2020-06-12T04:35:51.308Z] 04:35:51     INFO -      r13 = 0x00007f1a0702b560   r14 = 0x00007f1a0702b3f0
[task 2020-06-12T04:35:51.308Z] 04:35:51     INFO -      r15 = 0x00007f1a060e85e0   rip = 0x00007f1a2185fdae
[task 2020-06-12T04:35:51.308Z] 04:35:51     INFO -      Found by: call frame info
[task 2020-06-12T04:35:51.308Z] 04:35:51     INFO -   8  libxul.so!mozilla::ipc::PosixProcessLauncher::DoLaunch() [GeckoChildProcessHost.cpp:a5cb1a40413ebfb37e68bc8961e5a46467f06d14 : 1270 + 0x5]
[task 2020-06-12T04:35:51.308Z] 04:35:51     INFO -      rbx = 0x00007f1a09fee1f8   rbp = 0x00007f1a0702b4b0
[task 2020-06-12T04:35:51.309Z] 04:35:51     INFO -      rsp = 0x00007f1a0702b470   r12 = 0x00007f1a0702b4c0
[task 2020-06-12T04:35:51.309Z] 04:35:51     INFO -      r13 = 0x00007f1a0702b560   r14 = 0x00007f1a0702b510
[task 2020-06-12T04:35:51.309Z] 04:35:51     INFO -      r15 = 0x00007f1a0cf6b570   rip = 0x00007f1a218b0ae6
[task 2020-06-12T04:35:51.309Z] 04:35:51     INFO -      Found by: call frame info
[task 2020-06-12T04:35:51.310Z] 04:35:51     INFO -   9  libxul.so!mozilla::ipc::BaseProcessLauncher::PerformAsyncLaunch() [GeckoChildProcessHost.cpp:a5cb1a40413ebfb37e68bc8961e5a46467f06d14 : 1017 + 0xe]
[task 2020-06-12T04:35:51.310Z] 04:35:51     INFO -      rbx = 0x00007f1a09fee1f8   rbp = 0x00007f1a0702b500
[task 2020-06-12T04:35:51.310Z] 04:35:51     INFO -      rsp = 0x00007f1a0702b4c0   r12 = 0x00007f1a09fee1f0
[task 2020-06-12T04:35:51.310Z] 04:35:51     INFO -      r13 = 0x00007f1a0702b560   r14 = 0x00007f1a0702b510
[task 2020-06-12T04:35:51.310Z] 04:35:51     INFO -      r15 = 0x00007f1a0cf6b570   rip = 0x00007f1a218b4bc1
[task 2020-06-12T04:35:51.310Z] 04:35:51     INFO -      Found by: call frame info
[task 2020-06-12T04:35:51.310Z] 04:35:51     INFO -  10  libxul.so!mozilla::detail::ProxyRunnable<mozilla::MozPromise<mozilla::ipc::LaunchResults, mozilla::ipc::LaunchError, false>, RefPtr<mozilla::MozPromise<mozilla::ipc::LaunchResults, mozilla::ipc::LaunchError, false> > (mozilla::ipc::BaseProcessLauncher::*)(), mozilla::ipc::BaseProcessLauncher>::Run() [MozPromise.h:a5cb1a40413ebfb37e68bc8961e5a46467f06d14 : 1433 + 0x2b]
[task 2020-06-12T04:35:51.310Z] 04:35:51     INFO -      rbx = 0x00007f1a0603f7c0   rbp = 0x00007f1a0702b530
[task 2020-06-12T04:35:51.310Z] 04:35:51     INFO -      rsp = 0x00007f1a0702b510   r12 = 0x00007f1a0603f7c0
[task 2020-06-12T04:35:51.311Z] 04:35:51     INFO -      r13 = 0x00007f1a0702b560   r14 = 0x00007f1a0702ca98
[task 2020-06-12T04:35:51.311Z] 04:35:51     INFO -      r15 = 0x00007f1a0cf6b570   rip = 0x00007f1a218b5baf
[task 2020-06-12T04:35:51.311Z] 04:35:51     INFO -      Found by: call frame info
[task 2020-06-12T04:35:51.311Z] 04:35:51     INFO -  11  libxul.so!mozilla::TaskQueue::Runner::Run() [TaskQueue.cpp:a5cb1a40413ebfb37e68bc8961e5a46467f06d14 : 212 + 0xa]
[task 2020-06-12T04:35:51.311Z] 04:35:51     INFO -      rbx = 0x00007f1a060f0400   rbp = 0x00007f1a0702b620
[task 2020-06-12T04:35:51.311Z] 04:35:51     INFO -      rsp = 0x00007f1a0702b540   r12 = 0x00007f1a0603f7c0
[task 2020-06-12T04:35:51.312Z] 04:35:51     INFO -      r13 = 0x00007f1a0702b560   r14 = 0x00007f1a0702ca98
[task 2020-06-12T04:35:51.312Z] 04:35:51     INFO -      r15 = 0x00007f1a0cf6b570   rip = 0x00007f1a21072c5c
[task 2020-06-12T04:35:51.312Z] 04:35:51     INFO -      Found by: call frame info
[task 2020-06-12T04:35:51.312Z] 04:35:51     INFO -  12  libxul.so!nsThread::ProcessNextEvent(bool, bool*) [nsThread.cpp:a5cb1a40413ebfb37e68bc8961e5a46467f06d14 : 1236 + 0x6]
[task 2020-06-12T04:35:51.312Z] 04:35:51     INFO -      rbx = 0x00007f1a0cf6ccd0   rbp = 0x00007f1a0702bb80
[task 2020-06-12T04:35:51.312Z] 04:35:51     INFO -      rsp = 0x00007f1a0702b630   r12 = 0x0000000000000000
[task 2020-06-12T04:35:51.312Z] 04:35:51     INFO -      r13 = 0x000003ebcba3c4e2   r14 = 0x00007f1a0702bba7
[task 2020-06-12T04:35:51.312Z] 04:35:51     INFO -      r15 = 0x0000000000000000   rip = 0x00007f1a21077278
[task 2020-06-12T04:35:51.312Z] 04:35:51     INFO -      Found by: call frame info
[task 2020-06-12T04:35:51.313Z] 04:35:51     INFO -  13  libxul.so!NS_ProcessNextEvent(nsIThread*, bool) [nsThreadUtils.cpp:a5cb1a40413ebfb37e68bc8961e5a46467f06d14 : 501 + 0xe]
[task 2020-06-12T04:35:51.313Z] 04:35:51     INFO -      rbx = 0x00007f1a0702bc50   rbp = 0x00007f1a0702bbb0
[task 2020-06-12T04:35:51.313Z] 04:35:51     INFO -      rsp = 0x00007f1a0702bb90   r12 = 0x00007f1a09548280
[task 2020-06-12T04:35:51.313Z] 04:35:51     INFO -      r13 = 0x00007f1a0cf6ccd0   r14 = 0x00007f1a095482a0
[task 2020-06-12T04:35:51.313Z] 04:35:51     INFO -      r15 = 0x0000000000000000   rip = 0x00007f1a2105f743
[task 2020-06-12T04:35:51.313Z] 04:35:51     INFO -      Found by: call frame info
[task 2020-06-12T04:35:51.313Z] 04:35:51     INFO -  14  libxul.so!mozilla::ipc::MessagePumpForNonMainThreads::Run(base::MessagePump::Delegate*) [MessagePump.cpp:a5cb1a40413ebfb37e68bc8961e5a46467f06d14 : 302 + 0xa]
[task 2020-06-12T04:35:51.313Z] 04:35:51     INFO -      rbx = 0x00007f1a0702bc50   rbp = 0x00007f1a0702bbf0
[task 2020-06-12T04:35:51.313Z] 04:35:51     INFO -      rsp = 0x00007f1a0702bbc0   r12 = 0x00007f1a09548280
[task 2020-06-12T04:35:51.313Z] 04:35:51     INFO -      r13 = 0x00007f1a0cf6ccd0   r14 = 0x00007f1a095482a0
[task 2020-06-12T04:35:51.313Z] 04:35:51     INFO -      r15 = 0x0000000000000000   rip = 0x00007f1a218bea54
[task 2020-06-12T04:35:51.313Z] 04:35:51     INFO -      Found by: call frame info
[task 2020-06-12T04:35:51.314Z] 04:35:51     INFO -  15  libxul.so!MessageLoop::Run() [message_loop.cc:a5cb1a40413ebfb37e68bc8961e5a46467f06d14 : 290 + 0x5]
[task 2020-06-12T04:35:51.314Z] 04:35:51     INFO -      rbx = 0x00007f1a0cf6ccd0   rbp = 0x00007f1a0702bc20
[task 2020-06-12T04:35:51.314Z] 04:35:51     INFO -      rsp = 0x00007f1a0702bc00   r12 = 0x00007f1a0702bc40
[task 2020-06-12T04:35:51.314Z] 04:35:51     INFO -      r13 = 0x00007f1a30838c00   r14 = 0x00007f1a0702bc50
[task 2020-06-12T04:35:51.314Z] 04:35:51     INFO -      r15 = 0x00007f1a0702c920   rip = 0x00007f1a21862c4a
[task 2020-06-12T04:35:51.314Z] 04:35:51     INFO -      Found by: call frame info
[task 2020-06-12T04:35:51.314Z] 04:35:51     INFO -  16  libxul.so!nsThread::ThreadFunc(void*) [nsThread.cpp:a5cb1a40413ebfb37e68bc8961e5a46467f06d14 : 445 + 0x8]
[task 2020-06-12T04:35:51.314Z] 04:35:51     INFO -      rbx = 0x00007f1a0cf6ccd0   rbp = 0x00007f1a0702be20
[task 2020-06-12T04:35:51.314Z] 04:35:51     INFO -      rsp = 0x00007f1a0702bc30   r12 = 0x00007f1a0702bc40
[task 2020-06-12T04:35:51.315Z] 04:35:51     INFO -      r13 = 0x00007f1a30838c00   r14 = 0x00007f1a0702bc50
[task 2020-06-12T04:35:51.315Z] 04:35:51     INFO -      r15 = 0x00007f1a0702c920   rip = 0x00007f1a210766df
[task 2020-06-12T04:35:51.315Z] 04:35:51     INFO -      Found by: call frame info
[task 2020-06-12T04:35:51.315Z] 04:35:51     INFO -  17  libnspr4.so!_pt_root [ptthread.c:a5cb1a40413ebfb37e68bc8961e5a46467f06d14 : 201 + 0x7]
[task 2020-06-12T04:35:51.315Z] 04:35:51     INFO -      rbx = 0x00007f1a0cf16040   rbp = 0x00007f1a0702be70
[task 2020-06-12T04:35:51.315Z] 04:35:51     INFO -      rsp = 0x00007f1a0702be30   r12 = 0x0000000000000000
[task 2020-06-12T04:35:51.315Z] 04:35:51     INFO -      r13 = 0x0000000000007ecb   r14 = 0x00007f1a0702d700
[task 2020-06-12T04:35:51.316Z] 04:35:51     INFO -      r15 = 0x00007f1a0702c920   rip = 0x00007f1a33eb6b2e
[task 2020-06-12T04:35:51.316Z] 04:35:51     INFO -      Found by: call frame info
[task 2020-06-12T04:35:51.316Z] 04:35:51     INFO -  18  libpthread.so.0!start_thread [pthread_create.c : 463 + 0xd]
[task 2020-06-12T04:35:51.316Z] 04:35:51     INFO -      rbx = 0x0000000000000000   rbp = 0x0000000000000000
[task 2020-06-12T04:35:51.316Z] 04:35:51     INFO -      rsp = 0x00007f1a0702be80   r12 = 0x00007f1a0702bf40
[task 2020-06-12T04:35:51.316Z] 04:35:51     INFO -      r13 = 0x0000000000000000   r14 = 0x00007f1a0cf16040
[task 2020-06-12T04:35:51.316Z] 04:35:51     INFO -      r15 = 0x00007ffe9ea7e510   rip = 0x00007f1a33ac86db
[task 2020-06-12T04:35:51.316Z] 04:35:51     INFO -      Found by: call frame info
[task 2020-06-12T04:35:51.316Z] 04:35:51     INFO -  19  libc.so.6!clone + 0x3f
[task 2020-06-12T04:35:51.317Z] 04:35:51     INFO -      rbx = 0x00007f1a0702d700   rbp = 0x0000000000000000
[task 2020-06-12T04:35:51.317Z] 04:35:51     INFO -      rsp = 0x00007f1a0702bf40   r12 = 0x00007f1a0702bf40
[task 2020-06-12T04:35:51.317Z] 04:35:51     INFO -      r13 = 0x0000000000000000   r14 = 0x00007f1a0cf16040
[task 2020-06-12T04:35:51.317Z] 04:35:51     INFO -      r15 = 0x00007ffe9ea7e510   rip = 0x00007f1a1a0a088f
[task 2020-06-12T04:35:51.317Z] 04:35:51     INFO -      Found by: call frame info