Bug: Intermittent Last test finished | application crashed [@ _IO_new_fclose]
Status: RESOLVED
Priority: --
Resolution: DUPLICATE
Created: 2020-06-01 18:51:21+00:00
Resolved: 2020-06-24 04:11:58+00:00

**Filed by:** apavel [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer.html#?job_id=304574223&repo=mozilla-central
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/WRQUggRGS2SiigpvflaRWg/runs/0/artifacts/public/logs/live_backing.log

---

[task 2020-06-01T17:42:24.804Z] 17:42:24     INFO - TEST-START | browser/base/content/test/menubar/browser_file_menu_import_wizard.js
[task 2020-06-01T17:42:25.054Z] 17:42:25     INFO - GECKO(4318) | MEMORY STAT vsizeMaxContiguous not supported in this build configuration.
[task 2020-06-01T17:42:25.054Z] 17:42:25     INFO - GECKO(4318) | MEMORY STAT | vsize 3106MB | residentFast 510MB | heapAllocated 127MB
[task 2020-06-01T17:42:25.054Z] 17:42:25     INFO - TEST-OK | browser/base/content/test/menubar/browser_file_menu_import_wizard.js | took 248ms
[task 2020-06-01T17:42:25.480Z] 17:42:25     INFO - checking window state
[task 2020-06-01T17:42:26.162Z] 17:42:26     INFO - GECKO(4318) | [CodeCoverage] Setting handlers for process 4582.
[task 2020-06-01T17:42:26.463Z] 17:42:26     INFO - GECKO(4318) | [CodeCoverage] Setting handlers for process 4583.
[task 2020-06-01T17:42:27.164Z] 17:42:27     INFO - GECKO(4318) | ###!!! [Parent][RunMessage] Error: Channel closing: too late to send/recv, messages will be lost
[task 2020-06-01T17:42:28.222Z] 17:42:28     INFO - GECKO(4318) | Completed ShutdownLeaks collections in process 4583
[task 2020-06-01T17:42:28.264Z] 17:42:28     INFO - GECKO(4318) | Completed ShutdownLeaks collections in process 4507
[task 2020-06-01T17:42:28.452Z] 17:42:28     INFO - GECKO(4318) | Completed ShutdownLeaks collections in process 4435
[task 2020-06-01T17:42:28.472Z] 17:42:28     INFO - GECKO(4318) | Completed ShutdownLeaks collections in process 4419
[task 2020-06-01T17:42:30.003Z] 17:42:30     INFO - GECKO(4318) | Completed ShutdownLeaks collections in process 4318
[task 2020-06-01T17:42:30.003Z] 17:42:30     INFO - TEST-START | Shutdown
[task 2020-06-01T17:42:30.004Z] 17:42:30     INFO - Browser Chrome Test Summary
[task 2020-06-01T17:42:30.004Z] 17:42:30     INFO - Passed:  1
[task 2020-06-01T17:42:30.004Z] 17:42:30     INFO - Failed:  0
[task 2020-06-01T17:42:30.004Z] 17:42:30     INFO - Todo:    0
[task 2020-06-01T17:42:30.004Z] 17:42:30     INFO - Mode:    e10s
[task 2020-06-01T17:42:30.005Z] 17:42:30     INFO - *** End BrowserChrome Test Results ***
[task 2020-06-01T17:42:30.449Z] 17:42:30     INFO - GECKO(4318) | profiling:/tmp/tmpjWCjJ6/dom/midi/Unified_cpp_dom_midi0.gcda:Merge mismatch for function 288
[task 2020-06-01T17:42:30.449Z] 17:42:30     INFO - GECKO(4318) | ExceptionHandler::GenerateDump cloned child 4630
[task 2020-06-01T17:42:30.450Z] 17:42:30     INFO - GECKO(4318) | ExceptionHandler::SendContinueSignalToChild sent continue signal to child
[task 2020-06-01T17:42:30.464Z] 17:42:30     INFO - GECKO(4318) | ExceptionHandler::WaitForContinueSignal waiting for continue signal...
[task 2020-06-01T17:42:30.652Z] 17:42:30     INFO - GECKO(4318) | ###!!! [Child][MessageChannel::SendAndWait] Error: Channel error: cannot send/recv
[task 2020-06-01T17:42:30.652Z] 17:42:30     INFO - GECKO(4318) | [GFX1-]: Receive IPC close with reason=AbnormalShutdown
[task 2020-06-01T17:42:31.452Z] 17:42:31     INFO - TEST-INFO | Main app process: exit 11
[task 2020-06-01T17:42:31.452Z] 17:42:31     INFO - Buffered messages finished
[task 2020-06-01T17:42:31.452Z] 17:42:31    ERROR - TEST-UNEXPECTED-FAIL | Last test finished | application terminated with exit code 11
[task 2020-06-01T17:42:31.452Z] 17:42:31     INFO - runtests.py | Application ran for: 0:00:17.893858
[task 2020-06-01T17:42:31.453Z] 17:42:31     INFO - zombiecheck | Reading PID log: /tmp/tmpxmSFUFpidlog
[task 2020-06-01T17:42:31.453Z] 17:42:31     INFO - ==> process 4318 launched child process 4349
[task 2020-06-01T17:42:31.453Z] 17:42:31     INFO - ==> process 4318 launched child process 4419
[task 2020-06-01T17:42:31.453Z] 17:42:31     INFO - ==> process 4318 launched child process 4435
[task 2020-06-01T17:42:31.453Z] 17:42:31     INFO - ==> process 4318 launched child process 4507
[task 2020-06-01T17:42:31.453Z] 17:42:31     INFO - ==> process 4318 launched child process 4582
[task 2020-06-01T17:42:31.453Z] 17:42:31     INFO - ==> process 4318 launched child process 4583
[task 2020-06-01T17:42:31.453Z] 17:42:31     INFO - zombiecheck | Checking for orphan process with PID: 4419
[task 2020-06-01T17:42:31.453Z] 17:42:31     INFO - zombiecheck | Checking for orphan process with PID: 4582
[task 2020-06-01T17:42:31.453Z] 17:42:31     INFO - zombiecheck | Checking for orphan process with PID: 4583
[task 2020-06-01T17:42:31.453Z] 17:42:31     INFO - zombiecheck | Checking for orphan process with PID: 4435
[task 2020-06-01T17:42:31.454Z] 17:42:31     INFO - zombiecheck | Checking for orphan process with PID: 4507
[task 2020-06-01T17:42:31.454Z] 17:42:31     INFO - zombiecheck | Checking for orphan process with PID: 4349
[task 2020-06-01T17:42:31.454Z] 17:42:31     INFO - mozcrash Downloading symbols from: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/fpImfs-0QtKSZBT3MfZoBg/artifacts/public/build/target.crashreporter-symbols.zip
[task 2020-06-01T17:42:35.010Z] 17:42:35     INFO - mozcrash Copy/paste: /builds/worker/fetches/minidump_stackwalk/minidump_stackwalk /tmp/tmpZp66Yv.mozrunner/minidumps/0eb1bfba-1de9-2e3f-13c4-195bb6853106.dmp /tmp/tmpfyQk7m
[task 2020-06-01T17:42:39.387Z] 17:42:39     INFO - mozcrash Saved minidump as /builds/worker/workspace/build/blobber_upload_dir/0eb1bfba-1de9-2e3f-13c4-195bb6853106.dmp
[task 2020-06-01T17:42:39.387Z] 17:42:39     INFO - mozcrash Saved app info as /builds/worker/workspace/build/blobber_upload_dir/0eb1bfba-1de9-2e3f-13c4-195bb6853106.extra
[task 2020-06-01T17:42:39.551Z] 17:42:39     INFO - PROCESS-CRASH | Last test finished | application crashed [@ _IO_new_fclose]
[task 2020-06-01T17:42:39.551Z] 17:42:39     INFO - Crash dump filename: /tmp/tmpZp66Yv.mozrunner/minidumps/0eb1bfba-1de9-2e3f-13c4-195bb6853106.dmp
[task 2020-06-01T17:42:39.551Z] 17:42:39     INFO - Operating system: Linux
[task 2020-06-01T17:42:39.551Z] 17:42:39     INFO -                   0.0.0 Linux 4.4.0-1014-aws #14taskcluster1-Ubuntu SMP Tue Apr 3 10:27:00 UTC 2018 x86_64
[task 2020-06-01T17:42:39.551Z] 17:42:39     INFO - CPU: amd64
[task 2020-06-01T17:42:39.551Z] 17:42:39     INFO -      family 6 model 85 stepping 4
[task 2020-06-01T17:42:39.551Z] 17:42:39     INFO -      4 CPUs
[task 2020-06-01T17:42:39.551Z] 17:42:39     INFO - 
[task 2020-06-01T17:42:39.551Z] 17:42:39     INFO - GPU: UNKNOWN
[task 2020-06-01T17:42:39.551Z] 17:42:39     INFO - 
[task 2020-06-01T17:42:39.551Z] 17:42:39     INFO - Crash reason:  SIGSEGV /SEGV_MAPERR
[task 2020-06-01T17:42:39.551Z] 17:42:39     INFO - Crash address: 0x0
[task 2020-06-01T17:42:39.552Z] 17:42:39     INFO - Process uptime: not available
[task 2020-06-01T17:42:39.552Z] 17:42:39     INFO - 
[task 2020-06-01T17:42:39.552Z] 17:42:39     INFO - Thread 34 (crashed)
[task 2020-06-01T17:42:39.552Z] 17:42:39     INFO -  0  libc.so.6!_IO_new_fclose [iofclose.c : 48 + 0x0]
[task 2020-06-01T17:42:39.552Z] 17:42:39     INFO -     rax = 0x0000000000000001   rdx = 0x0000000000000e50
[task 2020-06-01T17:42:39.553Z] 17:42:39     INFO -     rcx = 0x00007fdd636db6d9   rbx = 0x000055f56f7b8de0
[task 2020-06-01T17:42:39.553Z] 17:42:39     INFO -     rsi = 0x00007fdd2ab538e0   rdi = 0x0000000000000000
[task 2020-06-01T17:42:39.553Z] 17:42:39     INFO -     rbp = 0x0000000001b30000   rsp = 0x00007fdd323c1b50
[task 2020-06-01T17:42:39.553Z] 17:42:39     INFO -      r8 = 0x0000000000000e00    r9 = 0x0000000000000000
[task 2020-06-01T17:42:39.553Z] 17:42:39     INFO -     r10 = 0x0000000000000000   r11 = 0x0000000000000206
[task 2020-06-01T17:42:39.553Z] 17:42:39     INFO -     r12 = 0x00007fdd554f86c8   r13 = 0x00007fdd554f8660
[task 2020-06-01T17:42:39.553Z] 17:42:39     INFO -     r14 = 0x0000000000000120   r15 = 0x000055f56f7b8de0
[task 2020-06-01T17:42:39.553Z] 17:42:39     INFO -     rip = 0x00007fdd63629254
[task 2020-06-01T17:42:39.553Z] 17:42:39     INFO -     Found by: given as instruction pointer in context
[task 2020-06-01T17:42:39.554Z] 17:42:39     INFO -  1  libxul.so!__gcov_close [gcov-io.c : 212 + 0x5]
[task 2020-06-01T17:42:39.554Z] 17:42:39     INFO -     rbx = 0x000055f56f7b8de0   rbp = 0x0000000001b30000
[task 2020-06-01T17:42:39.554Z] 17:42:39     INFO -     rsp = 0x00007fdd323c1b70   r12 = 0x00007fdd554f86c8
[task 2020-06-01T17:42:39.554Z] 17:42:39     INFO -     r13 = 0x00007fdd554f8660   r14 = 0x0000000000000120
[task 2020-06-01T17:42:39.554Z] 17:42:39     INFO -     r15 = 0x000055f56f7b8de0   rip = 0x00007fdd4ed6c96c
[task 2020-06-01T17:42:39.555Z] 17:42:39     INFO -     Found by: call frame info
[task 2020-06-01T17:42:39.555Z] 17:42:39     INFO -  2  libxul.so!gcov_do_dump [libgcov-driver.c : 850 + 0x14f]
[task 2020-06-01T17:42:39.555Z] 17:42:39     INFO -     rbx = 0x00007fdd554f3e60   rbp = 0x0000000001b30000
[task 2020-06-01T17:42:39.555Z] 17:42:39     INFO -     rsp = 0x00007fdd323c1b80   r12 = 0x00007fdd554f86c8
[task 2020-06-01T17:42:39.555Z] 17:42:39     INFO -     r13 = 0x00007fdd554f8660   r14 = 0x0000000000000120
[task 2020-06-01T17:42:39.556Z] 17:42:39     INFO -     r15 = 0x000055f56f7b8de0   rip = 0x00007fdd4ed6d4e1
[task 2020-06-01T17:42:39.556Z] 17:42:39     INFO -     Found by: call frame info
[task 2020-06-01T17:42:39.556Z] 17:42:39     INFO -  3  libxul.so!__gcov_dump_one [libgcov-driver.c : 871 + 0xe]
[task 2020-06-01T17:42:39.556Z] 17:42:39     INFO -     rbx = 0x00007fdd597ea100   rbp = 0x00007fdd323c64b0
[task 2020-06-01T17:42:39.556Z] 17:42:39     INFO -     rsp = 0x00007fdd323c6390   r12 = 0x00007fdd29c102a0
[task 2020-06-01T17:42:39.557Z] 17:42:39     INFO -     r13 = 0x0000000000000001   r14 = 0x00007fdd323c6450
[task 2020-06-01T17:42:39.557Z] 17:42:39     INFO -     r15 = 0x00007fdd2a862880   rip = 0x00007fdd4ed6e372
[task 2020-06-01T17:42:39.557Z] 17:42:39     INFO -     Found by: call frame info
[task 2020-06-01T17:42:39.557Z] 17:42:39     INFO -  4  libxul.so!__gcov_dump_int [libgcov-interface.c : 164 + 0x8]
[task 2020-06-01T17:42:39.557Z] 17:42:39     INFO -     rbx = 0x00007fdd597ea100   rbp = 0x00007fdd323c64b0
[task 2020-06-01T17:42:39.557Z] 17:42:39     INFO -     rsp = 0x00007fdd323c63a0   r12 = 0x00007fdd29c102a0
[task 2020-06-01T17:42:39.558Z] 17:42:39     INFO -     r13 = 0x0000000000000001   r14 = 0x00007fdd323c6450
[task 2020-06-01T17:42:39.558Z] 17:42:39     INFO -     r15 = 0x00007fdd2a862880   rip = 0x00007fdd4ed6e508
[task 2020-06-01T17:42:39.558Z] 17:42:39     INFO -     Found by: call frame info
[task 2020-06-01T17:42:39.558Z] 17:42:39     INFO -  5  libxul.so!__gcov_flush [libgcov-interface.c : 88 + 0x5]
[task 2020-06-01T17:42:39.558Z] 17:42:39     INFO -     rbx = 0x00007fdd323c6440   rbp = 0x00007fdd323c64b0
[task 2020-06-01T17:42:39.559Z] 17:42:39     INFO -     rsp = 0x00007fdd323c63b0   r12 = 0x00007fdd29c102a0
[task 2020-06-01T17:42:39.559Z] 17:42:39     INFO -     r13 = 0x0000000000000001   r14 = 0x00007fdd323c6450
[task 2020-06-01T17:42:39.559Z] 17:42:39     INFO -     r15 = 0x00007fdd2a862880   rip = 0x00007fdd4ed6c1cf
[task 2020-06-01T17:42:39.559Z] 17:42:39     INFO -     Found by: call frame info
[task 2020-06-01T17:42:39.559Z] 17:42:39     INFO -  6  libxul.so!__gcov_fork [libgcov-interface.c : 179 + 0x5]
[task 2020-06-01T17:42:39.560Z] 17:42:39     INFO -     rbx = 0x00007fdd323c6440   rbp = 0x00007fdd323c64b0
[task 2020-06-01T17:42:39.560Z] 17:42:39     INFO -     rsp = 0x00007fdd323c63c0   r12 = 0x00007fdd29c102a0
[task 2020-06-01T17:42:39.560Z] 17:42:39     INFO -     r13 = 0x0000000000000001   r14 = 0x00007fdd323c6450
[task 2020-06-01T17:42:39.560Z] 17:42:39     INFO -     r15 = 0x00007fdd2a862880   rip = 0x00007fdd4ed6c206
[task 2020-06-01T17:42:39.560Z] 17:42:39     INFO -     Found by: call frame info
[task 2020-06-01T17:42:39.560Z] 17:42:39     INFO -  7  libxul.so!base::LaunchApp(std::vector<std::string, std::allocator<std::string> > const&, base::LaunchOptions const&, int*) [process_util_linux.cc:fca693218e528ad68e3437f8b4d58299a7d0e34a : 232 + 0x5]
[task 2020-06-01T17:42:39.560Z] 17:42:39     INFO -     rbx = 0x00007fdd323c6440   rbp = 0x00007fdd323c64b0
[task 2020-06-01T17:42:39.560Z] 17:42:39     INFO -     rsp = 0x00007fdd323c63d0   r12 = 0x00007fdd29c102a0
[task 2020-06-01T17:42:39.561Z] 17:42:39     INFO -     r13 = 0x0000000000000001   r14 = 0x00007fdd323c6450
[task 2020-06-01T17:42:39.561Z] 17:42:39     INFO -     r15 = 0x00007fdd2a862880   rip = 0x00007fdd4776ae26
[task 2020-06-01T17:42:39.561Z] 17:42:39     INFO -     Found by: call frame info
[task 2020-06-01T17:42:39.561Z] 17:42:39     INFO -  8  libxul.so!mozilla::ipc::PosixProcessLauncher::DoLaunch() [GeckoChildProcessHost.cpp:fca693218e528ad68e3437f8b4d58299a7d0e34a : 1270 + 0x5]
[task 2020-06-01T17:42:39.561Z] 17:42:39     INFO -     rbx = 0x00007fdd29c101f8   rbp = 0x00007fdd323c6500
[task 2020-06-01T17:42:39.561Z] 17:42:39     INFO -     rsp = 0x00007fdd323c64c0   r12 = 0x00007fdd323c6510
[task 2020-06-01T17:42:39.561Z] 17:42:39     INFO -     r13 = 0x00007fdd323c65b0   r14 = 0x00007fdd323c6560
[task 2020-06-01T17:42:39.562Z] 17:42:39     INFO -     r15 = 0x00007fdd2a8f8560   rip = 0x00007fdd477bbbe6
[task 2020-06-01T17:42:39.562Z] 17:42:39     INFO -     Found by: call frame info
[task 2020-06-01T17:42:39.562Z] 17:42:39     INFO -  9  libxul.so!mozilla::ipc::BaseProcessLauncher::PerformAsyncLaunch() [GeckoChildProcessHost.cpp:fca693218e528ad68e3437f8b4d58299a7d0e34a : 1017 + 0xe]
[task 2020-06-01T17:42:39.562Z] 17:42:39     INFO -     rbx = 0x00007fdd29c101f8   rbp = 0x00007fdd323c6550
[task 2020-06-01T17:42:39.563Z] 17:42:39     INFO -     rsp = 0x00007fdd323c6510   r12 = 0x00007fdd29c101f0
[task 2020-06-01T17:42:39.563Z] 17:42:39     INFO -     r13 = 0x00007fdd323c65b0   r14 = 0x00007fdd323c6560
[task 2020-06-01T17:42:39.563Z] 17:42:39     INFO -     r15 = 0x00007fdd2a8f8560   rip = 0x00007fdd477bfcc1
[task 2020-06-01T17:42:39.563Z] 17:42:39     INFO -     Found by: call frame info
[task 2020-06-01T17:42:39.563Z] 17:42:39     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:fca693218e528ad68e3437f8b4d58299a7d0e34a : 1433 + 0x2b]
[task 2020-06-01T17:42:39.563Z] 17:42:39     INFO -     rbx = 0x00007fdd2a8cbc40   rbp = 0x00007fdd323c6580
[task 2020-06-01T17:42:39.563Z] 17:42:39     INFO -     rsp = 0x00007fdd323c6560   r12 = 0x00007fdd2a8cbc40
[task 2020-06-01T17:42:39.563Z] 17:42:39     INFO -     r13 = 0x00007fdd323c65b0   r14 = 0x00007fdd3b46f0d8
[task 2020-06-01T17:42:39.563Z] 17:42:39     INFO -     r15 = 0x00007fdd2a8f8560   rip = 0x00007fdd477c0caf
[task 2020-06-01T17:42:39.564Z] 17:42:39     INFO -     Found by: call frame info
[task 2020-06-01T17:42:39.564Z] 17:42:39     INFO - 11  libxul.so!mozilla::TaskQueue::Runner::Run() [TaskQueue.cpp:fca693218e528ad68e3437f8b4d58299a7d0e34a : 212 + 0xa]
[task 2020-06-01T17:42:39.564Z] 17:42:39     INFO -     rbx = 0x00007fdd2aae3760   rbp = 0x00007fdd323c6670
[task 2020-06-01T17:42:39.564Z] 17:42:39     INFO -     rsp = 0x00007fdd323c6590   r12 = 0x00007fdd2a8cbc40
[task 2020-06-01T17:42:39.564Z] 17:42:39     INFO -     r13 = 0x00007fdd323c65b0   r14 = 0x00007fdd3b46f0d8
[task 2020-06-01T17:42:39.564Z] 17:42:39     INFO -     r15 = 0x00007fdd2a8f8560   rip = 0x00007fdd46f67fcc
[task 2020-06-01T17:42:39.564Z] 17:42:39     INFO -     Found by: call frame info
[task 2020-06-01T17:42:39.564Z] 17:42:39     INFO - 12  libxul.so!nsThread::ProcessNextEvent(bool, bool*) [nsThread.cpp:fca693218e528ad68e3437f8b4d58299a7d0e34a : 1211 + 0x6]
[task 2020-06-01T17:42:39.564Z] 17:42:39     INFO -     rbx = 0x00007fdd3257bac0   rbp = 0x00007fdd323c6bc0
[task 2020-06-01T17:42:39.564Z] 17:42:39     INFO -     rsp = 0x00007fdd323c6680   r12 = 0x00007fdd3257bb88
[task 2020-06-01T17:42:39.564Z] 17:42:39     INFO -     r13 = 0x0000000000000000   r14 = 0x00007fdd2aae3760
[task 2020-06-01T17:42:39.565Z] 17:42:39     INFO -     r15 = 0x00007fdd323c6be7   rip = 0x00007fdd46f8c029
[task 2020-06-01T17:42:39.565Z] 17:42:39     INFO -     Found by: call frame info
[task 2020-06-01T17:42:39.565Z] 17:42:39     INFO - 13  libxul.so!NS_ProcessNextEvent(nsIThread*, bool) [nsThreadUtils.cpp:fca693218e528ad68e3437f8b4d58299a7d0e34a : 501 + 0xe]
[task 2020-06-01T17:42:39.565Z] 17:42:39     INFO -     rbx = 0x00007fdd323c6c90   rbp = 0x00007fdd323c6bf0
[task 2020-06-01T17:42:39.565Z] 17:42:39     INFO -     rsp = 0x00007fdd323c6bd0   r12 = 0x00007fdd325ee0c0
[task 2020-06-01T17:42:39.566Z] 17:42:39     INFO -     r13 = 0x00007fdd3257bac0   r14 = 0x00007fdd325ee0e0
[task 2020-06-01T17:42:39.566Z] 17:42:39     INFO -     r15 = 0x0000000000000000   rip = 0x00007fdd46f770a3
[task 2020-06-01T17:42:39.566Z] 17:42:39     INFO -     Found by: call frame info
[task 2020-06-01T17:42:39.566Z] 17:42:39     INFO - 14  libxul.so!mozilla::ipc::MessagePumpForNonMainThreads::Run(base::MessagePump::Delegate*) [MessagePump.cpp:fca693218e528ad68e3437f8b4d58299a7d0e34a : 332 + 0xd]
[task 2020-06-01T17:42:39.566Z] 17:42:39     INFO -     rbx = 0x00007fdd323c6c90   rbp = 0x00007fdd323c6c30
[task 2020-06-01T17:42:39.566Z] 17:42:39     INFO -     rsp = 0x00007fdd323c6c00   r12 = 0x00007fdd325ee0c0
[task 2020-06-01T17:42:39.566Z] 17:42:39     INFO -     r13 = 0x00007fdd3257bac0   r14 = 0x00007fdd325ee0e0
[task 2020-06-01T17:42:39.566Z] 17:42:39     INFO -     r15 = 0x0000000000000000   rip = 0x00007fdd477c9a71
[task 2020-06-01T17:42:39.567Z] 17:42:39     INFO -     Found by: call frame info
[task 2020-06-01T17:42:39.567Z] 17:42:39     INFO - 15  libxul.so!MessageLoop::Run() [message_loop.cc:fca693218e528ad68e3437f8b4d58299a7d0e34a : 290 + 0x5]
[task 2020-06-01T17:42:39.567Z] 17:42:39     INFO -     rbx = 0x00007fdd3257bac0   rbp = 0x00007fdd323c6c60
[task 2020-06-01T17:42:39.567Z] 17:42:39     INFO -     rsp = 0x00007fdd323c6c40   r12 = 0x00007fdd323c6c80
[task 2020-06-01T17:42:39.567Z] 17:42:39     INFO -     r13 = 0x00007fdd56598560   r14 = 0x00007fdd323c6c90
[task 2020-06-01T17:42:39.567Z] 17:42:39     INFO -     r15 = 0x00007fdd323c7638   rip = 0x00007fdd4776dcda
[task 2020-06-01T17:42:39.567Z] 17:42:39     INFO -     Found by: call frame info
[task 2020-06-01T17:42:39.567Z] 17:42:39     INFO - 16  libxul.so!nsThread::ThreadFunc(void*) [nsThread.cpp:fca693218e528ad68e3437f8b4d58299a7d0e34a : 444 + 0x8]
[task 2020-06-01T17:42:39.567Z] 17:42:39     INFO -     rbx = 0x00007fdd3257bac0   rbp = 0x00007fdd323c6e60
[task 2020-06-01T17:42:39.567Z] 17:42:39     INFO -     rsp = 0x00007fdd323c6c70   r12 = 0x00007fdd323c6c80
[task 2020-06-01T17:42:39.567Z] 17:42:39     INFO -     r13 = 0x00007fdd56598560   r14 = 0x00007fdd323c6c90
[task 2020-06-01T17:42:39.568Z] 17:42:39     INFO -     r15 = 0x00007fdd323c7638   rip = 0x00007fdd46f8b80f
[task 2020-06-01T17:42:39.568Z] 17:42:39     INFO -     Found by: call frame info
[task 2020-06-01T17:42:39.568Z] 17:42:39     INFO - 17  libnspr4.so!_pt_root [ptthread.c:fca693218e528ad68e3437f8b4d58299a7d0e34a : 201 + 0x7]
[task 2020-06-01T17:42:39.568Z] 17:42:39     INFO -     rbx = 0x00007fdd32f9d3a0   rbp = 0x00007fdd323c6eb0
[task 2020-06-01T17:42:39.568Z] 17:42:39     INFO -     rsp = 0x00007fdd323c6e70   r12 = 0x0000000000000000
[task 2020-06-01T17:42:39.568Z] 17:42:39     INFO -     r13 = 0x0000000000001142   r14 = 0x00007fdd323c7700
[task 2020-06-01T17:42:39.568Z] 17:42:39     INFO -     r15 = 0x00007fdd323c7638   rip = 0x00007fdd6484faae
[task 2020-06-01T17:42:39.568Z] 17:42:39     INFO -     Found by: call frame info
[task 2020-06-01T17:42:39.568Z] 17:42:39     INFO - 18  libpthread.so.0!start_thread [pthread_create.c : 463 + 0xd]
[task 2020-06-01T17:42:39.568Z] 17:42:39     INFO -     rbx = 0x0000000000000000   rbp = 0x0000000000000000
[task 2020-06-01T17:42:39.569Z] 17:42:39     INFO -     rsp = 0x00007fdd323c6ec0   r12 = 0x00007fdd323c6f80
[task 2020-06-01T17:42:39.569Z] 17:42:39     INFO -     r13 = 0x0000000000000000   r14 = 0x00007fdd32f9d3a0
[task 2020-06-01T17:42:39.569Z] 17:42:39     INFO -     r15 = 0x00007ffc99152f70   rip = 0x00007fdd644e66db
[task 2020-06-01T17:42:39.569Z] 17:42:39     INFO -     Found by: call frame info
[task 2020-06-01T17:42:39.569Z] 17:42:39     INFO - 19  libc.so.6!clone + 0x3f
[task 2020-06-01T17:42:39.569Z] 17:42:39     INFO -     rbx = 0x00007fdd323c7700   rbp = 0x0000000000000000
[task 2020-06-01T17:42:39.569Z] 17:42:39     INFO -     rsp = 0x00007fdd323c6f80   r12 = 0x00007fdd323c6f80
[task 2020-06-01T17:42:39.569Z] 17:42:39     INFO -     r13 = 0x0000000000000000   r14 = 0x00007fdd32f9d3a0
[task 2020-06-01T17:42:39.569Z] 17:42:39     INFO -     r15 = 0x00007ffc99152f70   rip = 0x00007fdd636cc88f
[task 2020-06-01T17:42:39.569Z] 17:42:39     INFO -     Found by: call frame info