1861906 - Intermittent Shutdown hanging at step XPCOMShutdown. Something is blocking the main-thread. [@ mozilla::(anonymous namespace)::RunWatchdog] | single tracking bug

Status: RESOLVED DUPLICATE of bug 1358898

(Core :: DOM: Core & HTML, defect)

Description

[Treeherder Bug Filer]

Filed by: nfay [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=434203114&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/S-qAP8V4Q-ivavGv8DNhog/runs/0/artifacts/public/logs/live_backing.log

---

[task 2023-10-30T04:09:00.897Z] 04:09:00     INFO - mozcrash Copy/paste: /builds/worker/fetches/minidump-stackwalk/minidump-stackwalk --symbols-url=https://symbols.mozilla.org/ --cyborg=/tmp/tmpzimld7ee/40280cac-15ee-ca73-dafc-ee39f0ad6416.trace /tmp/tmph3rtq5fj.mozrunner/minidumps/40280cac-15ee-ca73-dafc-ee39f0ad6416.dmp /builds/worker/workspace/build/symbols
[task 2023-10-30T04:09:07.108Z] 04:09:07     INFO - mozcrash Saved minidump as /builds/worker/workspace/build/blobber_upload_dir/40280cac-15ee-ca73-dafc-ee39f0ad6416.dmp
[task 2023-10-30T04:09:07.108Z] 04:09:07     INFO - mozcrash Saved app info as /builds/worker/workspace/build/blobber_upload_dir/40280cac-15ee-ca73-dafc-ee39f0ad6416.extra
[task 2023-10-30T04:09:07.236Z] 04:09:07     INFO - PROCESS-CRASH | Shutdown hanging at step XPCOMShutdown. Something is blocking the main-thread. [@ mozilla::(anonymous namespace)::RunWatchdog] | dom/base/test/test_youtube_flash_embed.html (finished) 
[task 2023-10-30T04:09:07.237Z] 04:09:07     INFO - Process type: main
[task 2023-10-30T04:09:07.237Z] 04:09:07     INFO - Process pid: None
[task 2023-10-30T04:09:07.237Z] 04:09:07     INFO - Mozilla crash reason: Shutdown hanging at step XPCOMShutdown. Something is blocking the main-thread.
[task 2023-10-30T04:09:07.237Z] 04:09:07     INFO - Crash dump filename: /tmp/tmph3rtq5fj.mozrunner/minidumps/40280cac-15ee-ca73-dafc-ee39f0ad6416.dmp
[task 2023-10-30T04:09:07.237Z] 04:09:07     INFO - Operating system: Linux
[task 2023-10-30T04:09:07.237Z] 04:09:07     INFO -                   4.4.0-1014-aws #14taskcluster1-Ubuntu SMP Tue Apr 3 10:27:00 UTC 2018
[task 2023-10-30T04:09:07.237Z] 04:09:07     INFO - CPU: amd64
[task 2023-10-30T04:09:07.237Z] 04:09:07     INFO -      family 6 model 85 stepping 7
[task 2023-10-30T04:09:07.237Z] 04:09:07     INFO -      2 CPUs
[task 2023-10-30T04:09:07.238Z] 04:09:07     INFO - Linux Ubuntu 18.04 - bionic (Ubuntu 18.04.6 LTS)
[task 2023-10-30T04:09:07.238Z] 04:09:07     INFO - 
[task 2023-10-30T04:09:07.238Z] 04:09:07     INFO - Crash reason:  SIGSEGV / SEGV_MAPERR
[task 2023-10-30T04:09:07.238Z] 04:09:07     INFO - Crash address: 0x0
[task 2023-10-30T04:09:07.238Z] 04:09:07     INFO - Crashing instruction: `mov dword [0x0], 0xf4`
[task 2023-10-30T04:09:07.238Z] 04:09:07     INFO - Memory accessed by instruction:
[task 2023-10-30T04:09:07.238Z] 04:09:07     INFO -   0. Address: 0x0000000000000000
[task 2023-10-30T04:09:07.238Z] 04:09:07     INFO -      Size: 4
[task 2023-10-30T04:09:07.239Z] 04:09:07     INFO - Process uptime: not available
[task 2023-10-30T04:09:07.239Z] 04:09:07     INFO - 
[task 2023-10-30T04:09:07.239Z] 04:09:07     INFO - Thread 44 Shutdow~minator (crashed)
[task 2023-10-30T04:09:07.239Z] 04:09:07     INFO -  0  libxul.so!MOZ_Crash(char const*, int, char const*) [Assertions.h:cfc1bbb8edcc79491d2e1267e84338d155b2ee3c : 281]
[task 2023-10-30T04:09:07.239Z] 04:09:07     INFO -     Found by: inlining
[task 2023-10-30T04:09:07.239Z] 04:09:07     INFO -  1  libxul.so!mozilla::(anonymous namespace)::RunWatchdog(void*) [nsTerminator.cpp:cfc1bbb8edcc79491d2e1267e84338d155b2ee3c : 244 + 0x17]
[task 2023-10-30T04:09:07.239Z] 04:09:07     INFO -      rax = 0x00005621ff7c1af8    rdx = 0x0000000000000000
[task 2023-10-30T04:09:07.239Z] 04:09:07     INFO -      rcx = 0x0000000000000b40    rbx = 0x00007fd48b5aad80
[task 2023-10-30T04:09:07.239Z] 04:09:07     INFO -      rsi = 0x00007fd4e054a8b0    rdi = 0x00007fd4e0549680
[task 2023-10-30T04:09:07.240Z] 04:09:07     INFO -      rbp = 0x00007fd49b5fddb0    rsp = 0x00007fd49b5fdd80
[task 2023-10-30T04:09:07.240Z] 04:09:07     INFO -       r8 = 0x00007fd4e054a8b0     r9 = 0x00007fd49b5fe700
[task 2023-10-30T04:09:07.240Z] 04:09:07     INFO -      r10 = 0x0000000000000002    r11 = 0x0000000000000000
[task 2023-10-30T04:09:07.240Z] 04:09:07     INFO -      r12 = 0x00007fd49b5fe630    r13 = 0x0000000000000007
[task 2023-10-30T04:09:07.240Z] 04:09:07     INFO -      r14 = 0x00007fd49b5fdd90    r15 = 0x00007fd49b5fe700
[task 2023-10-30T04:09:07.240Z] 04:09:07     INFO -      rip = 0x00007fd4d1347a8b
[task 2023-10-30T04:09:07.241Z] 04:09:07     INFO -     Found by: given as instruction pointer in context
[task 2023-10-30T04:09:07.241Z] 04:09:07     INFO -  2  libnspr4.so!_pt_root [ptthread.c:cfc1bbb8edcc79491d2e1267e84338d155b2ee3c : 201 + 0x6]
[task 2023-10-30T04:09:07.241Z] 04:09:07     INFO -      rbx = 0x00007fd490e8e4c0    rbp = 0x00007fd49b5fde00
[task 2023-10-30T04:09:07.241Z] 04:09:07     INFO -      rsp = 0x00007fd49b5fddc0    r12 = 0x00007fd49b5fe630
[task 2023-10-30T04:09:07.241Z] 04:09:07     INFO -      r13 = 0x0000000000000007    r14 = 0x00007fd4dff1ddc0
[task 2023-10-30T04:09:07.241Z] 04:09:07     INFO -      r15 = 0x00007fd49b5fe700    rip = 0x00007fd4e14aa720
[task 2023-10-30T04:09:07.242Z] 04:09:07     INFO -     Found by: call frame info
[task 2023-10-30T04:09:07.242Z] 04:09:07     INFO -  3  firefox-bin!set_alt_signal_stack_and_start(PthreadCreateParams*) [pthread_create_interposer.cpp:cfc1bbb8edcc79491d2e1267e84338d155b2ee3c : 81 + 0x5]
[task 2023-10-30T04:09:07.242Z] 04:09:07     INFO -      rbx = 0x00007fd490e8e4c0    rbp = 0x00007fd49b5fdeb0
[task 2023-10-30T04:09:07.242Z] 04:09:07     INFO -      rsp = 0x00007fd49b5fde10    r12 = 0x00007fd49b5fdf80
[task 2023-10-30T04:09:07.242Z] 04:09:07     INFO -      r13 = 0x0000000000000000    r14 = 0x00007fd49b5fde20
[task 2023-10-30T04:09:07.243Z] 04:09:07     INFO -      r15 = 0x00007fd4e14aa590    rip = 0x00005621ff7162fd
[task 2023-10-30T04:09:07.243Z] 04:09:07     INFO -     Found by: call frame info
[task 2023-10-30T04:09:07.243Z] 04:09:07     INFO -  4  libpthread.so.0 + 0x76da
[task 2023-10-30T04:09:07.243Z] 04:09:07     INFO -      rbx = 0x0000000000000000    rbp = 0x0000000000000000
[task 2023-10-30T04:09:07.243Z] 04:09:07     INFO -      rsp = 0x00007fd49b5fdec0    r12 = 0x00007fd49b5fdf80
[task 2023-10-30T04:09:07.244Z] 04:09:07     INFO -      r13 = 0x0000000000000000    r14 = 0x00007fd4be389e10
[task 2023-10-30T04:09:07.244Z] 04:09:07     INFO -      r15 = 0x00007ffcb81a2c00    rip = 0x00007fd4e10986db
[task 2023-10-30T04:09:07.244Z] 04:09:07     INFO -     Found by: call frame info
[task 2023-10-30T04:09:07.244Z] 04:09:07     INFO -  5  libc.so.6 + 0x121a3e
[task 2023-10-30T04:09:07.244Z] 04:09:07     INFO -      rsp = 0x00007fd49b5fdf80    rip = 0x00007fd4e027ea3f
[task 2023-10-30T04:09:07.244Z] 04:09:07     INFO -     Found by: stack scanning
[task 2023-10-30T04:09:07.245Z] 04:09:07     INFO - 
[task 2023-10-30T04:09:07.245Z] 04:09:07     INFO - Thread 0 firefox-bin

Comment 2

[Natalia Csoregi [:nataliaCs]]

First occurrence so far, in this range of retriggers and backfills

Comment 3

[Intermittent Failures Robot]

37 failures in 3356 pushes (0.011 failures/push) were associated with this bug in the last 7 days.

This is the #49 most frequent failure this week.

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. **

Repository breakdown:

• autoland: 19
• mozilla-central: 10
• try: 4
• mozilla-esr115: 1
• mozilla-beta: 3

Platform and build breakdown:

• linux1804-64-qr: 32
  • debug: 32
• linux1804-64-shippable-qr: 3
  • opt: 3
• windows11-64-2009-shippable-qr: 1
  • opt: 1
• linux2204-64-wayland: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1861906&startday=2023-10-30&endday=2023-11-05&tree=all

Comment 4

[Intermittent Failures Robot]

38 failures in 3288 pushes (0.012 failures/push) were associated with this bug in the last 7 days.

This is the #50 most frequent failure this week.

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. **

Repository breakdown:

• mozilla-beta: 6
• autoland: 21
• mozilla-central: 6
• try: 5

Platform and build breakdown:

• linux1804-64-devedition-qr: 1
  • opt: 1
• linux1804-64-qr: 30
  • debug: 30
• linux1804-64-shippable-qr: 5
  • opt: 5
• linux2204-64-wayland: 2
  • debug: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1861906&startday=2023-11-06&endday=2023-11-12&tree=all

Comment 5

[Natalia Csoregi [:nataliaCs]]

Update

There have been 32 failures within the last 7 days:

• 29 failures on Linux 18.04 x64 WebRender debug
• 3 failures on linux2204-64-wayland debug

Recent failure log: https://treeherder.mozilla.org/logviewer?job_id=436257010&repo=autoland&lineNumber=7369

Andrew, can we close this as a duplicate of Bug 1358898 ?
Thank you.

Comment 6

[Andrew McCreight [:mccr8]]

Sure. It is the same basic crash.