Bug: Intermittent browser/components/privatebrowsing/test/browser/browser_privatebrowsing_sidebar.js | application crashed [@ -[NSScreenDisplayLink _fire]]
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2023-04-19 13:36:49+00:00
Resolved: 2023-05-29 12:04:24+00:00

**Filed by:** smolnar [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=412993301&repo=mozilla-central
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/NniW9B_FRSyKcpTUJsFqsA/runs/0/artifacts/public/logs/live_backing.log

---
```
INFO - TEST-PASS | browser/components/privatebrowsing/test/browser/browser_privatebrowsing_sidebar.js | Opening a reg window from a private window does not open the sidebar - 
[task 2023-04-19T12:28:01.064Z] 12:28:01     INFO - Buffered messages finished
[task 2023-04-19T12:28:01.065Z] 12:28:01    ERROR - TEST-UNEXPECTED-FAIL | browser/components/privatebrowsing/test/browser/browser_privatebrowsing_sidebar.js | application terminated with exit code 1
[task 2023-04-19T12:28:01.065Z] 12:28:01     INFO - runtests.py | Application ran for: 0:01:39.827209
[task 2023-04-19T12:28:01.065Z] 12:28:01     INFO - zombiecheck | Reading PID log: /var/folders/h3/snrtdstx3_5cydhz58ndp098000014/T/tmppc12fcc1pidlog
[task 2023-04-19T12:28:01.066Z] 12:28:01     INFO - ==> process 2204 launched child process 2205
<...>
INFO - zombiecheck | Checking for orphan process with PID: 2298
[task 2023-04-19T12:28:01.102Z] 12:28:01     INFO - mozcrash Downloading symbols from: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/MZm4OQvrShiZC4U5ilpZ-w/artifacts/public/build/target.crashreporter-symbols.zip
[task 2023-04-19T12:28:26.314Z] 12:28:26     INFO - mozcrash Copy/paste: /opt/worker/tasks/task_168190655876215/fetches/minidump-stackwalk/minidump-stackwalk --symbols-url=https://symbols.mozilla.org/ --cyborg=/var/folders/h3/snrtdstx3_5cydhz58ndp098000014/T/tmpwtlk5xoc/ACD39ACE-C10D-41FF-B4A0-1BB070FEE4AA.trace /var/folders/h3/snrtdstx3_5cydhz58ndp098000014/T/tmpt_wseru6.mozrunner/minidumps/ACD39ACE-C10D-41FF-B4A0-1BB070FEE4AA.dmp /var/folders/h3/snrtdstx3_5cydhz58ndp098000014/T/tmpk0c9q71o
[task 2023-04-19T12:28:34.336Z] 12:28:34     INFO - mozcrash Saved minidump as /opt/worker/tasks/task_168190655876215/build/blobber_upload_dir/ACD39ACE-C10D-41FF-B4A0-1BB070FEE4AA.dmp
[task 2023-04-19T12:28:34.337Z] 12:28:34     INFO - mozcrash Saved app info as /opt/worker/tasks/task_168190655876215/build/blobber_upload_dir/ACD39ACE-C10D-41FF-B4A0-1BB070FEE4AA.extra
[task 2023-04-19T12:28:34.911Z] 12:28:34     INFO - PROCESS-CRASH | browser/components/privatebrowsing/test/browser/browser_privatebrowsing_sidebar.js | application crashed [@ -[NSScreenDisplayLink _fire]]
[task 2023-04-19T12:28:34.911Z] 12:28:34     INFO - Crash dump filename: /var/folders/h3/snrtdstx3_5cydhz58ndp098000014/T/tmpt_wseru6.mozrunner/minidumps/ACD39ACE-C10D-41FF-B4A0-1BB070FEE4AA.dmp
[task 2023-04-19T12:28:34.911Z] 12:28:34     INFO - Operating system: Mac OS X
[task 2023-04-19T12:28:34.911Z] 12:28:34     INFO -                   10.15.7 19H15
[task 2023-04-19T12:28:34.911Z] 12:28:34     INFO - CPU: amd64
[task 2023-04-19T12:28:34.911Z] 12:28:34     INFO -      family 6 model 158 stepping 10
[task 2023-04-19T12:28:34.911Z] 12:28:34     INFO -      12 CPUs
[task 2023-04-19T12:28:34.911Z] 12:28:34     INFO - 
[task 2023-04-19T12:28:34.911Z] 12:28:34     INFO - Crash reason:  EXC_BAD_ACCESS / EXC_I386_GPFLT
[task 2023-04-19T12:28:34.911Z] 12:28:34     INFO - Crash address: 0x0
[task 2023-04-19T12:28:34.911Z] 12:28:34     INFO - Crashing instruction: `call qword [rdi + 0x10]`
[task 2023-04-19T12:28:34.911Z] 12:28:34     INFO - Memory accessed by instruction:
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO -   0. Address: 0x000000017ea74230
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO -      Size: 8
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO - Mac Crash Info:
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO - 
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO - Process uptime: 99 seconds
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO - 
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO - Thread 90  (crashed)
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO -  0  AppKit!-[NSScreenDisplayLink _fire] + 0xb1
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO -      rax = 0x0000000000000010    rdx = 0x000000000000ae17
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO -      rcx = 0x0000000000000030    rbx = 0x0000000000000038
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO -      rsi = 0x0000000176a5b2c0    rdi = 0x000000017ea74220
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO -      rbp = 0x0000700008dc2ee0    rsp = 0x0000700008dc2ec0
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO -       r8 = 0x0000000000000001     r9 = 0x0000000000d82a8a
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO -      r10 = 0x00007fff8de15510    r11 = 0x00007fff33f53eb9
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO -      r12 = 0x0000000176a5b2c0    r13 = 0x000000016eb754d8
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO -      r14 = 0x0000000176a5b2e0    r15 = 0x0000000143cce060
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO -      rip = 0x00007fff33f53e31
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO -     Found by: given as instruction pointer in context
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO -  1  AppKit!___NSRunLoopTimerCreateWithHandler_block_invoke + 0x21
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO -      rbx = 0x000000017ea74250    rbp = 0x0000700008dc2f10
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO -      rsp = 0x0000700008dc2ef0    r12 = 0x00007fff36b1d647
[task 2023-04-19T12:28:34.912Z] 12:28:34     INFO -      r13 = 0x000000016eb754d8    r14 = 0x000000016eb754c0
INFO -      r15 = 0x0000000143cce058    rip = 0x00007fff346a16c2
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -     Found by: call frame info
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -  2  CoreFoundation + 0x9e7f8
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -      rbx = 0x000000017ea74250    rbp = 0x0000700008dc2f20
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -      rsp = 0x0000700008dc2f20    r12 = 0x00007fff36b1d647
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -      r13 = 0x000000016eb754d8    r14 = 0x000000016eb754c0
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -      r15 = 0x000000014673ce00    rip = 0x00007fff36af97f9
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -     Found by: call frame info
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -  3  CoreFoundation + 0x9e35e
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -      rbp = 0x0000700008dc3fd0    rsp = 0x0000700008dc2f30
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -      rip = 0x00007fff36af935f
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -     Found by: previous frame's frame pointer
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -  4  CoreFoundation + 0x9de46
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -      rbp = 0x0000700008dc4050    rsp = 0x0000700008dc3fe0
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -      rip = 0x00007fff36af8e47
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -     Found by: previous frame's frame pointer
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -  5  CoreFoundation + 0x82be9
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -      rbp = 0x0000700008dc4d60    rsp = 0x0000700008dc4060
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -      rip = 0x00007fff36addbea
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -     Found by: previous frame's frame pointer
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -  6  CoreFoundation + 0x81e3d
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -      rbp = 0x0000700008dc4df0    rsp = 0x0000700008dc4d70
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -      rip = 0x00007fff36adce3e
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -     Found by: previous frame's frame pointer
[task 2023-04-19T12:28:34.913Z] 12:28:34     INFO -  7  Foundation!-[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 0xd3
[task 2023-04-19T12:28:34.914Z] 12:28:34     INFO -      rbp = 0x0000700008dc4e30    rsp = 0x0000700008dc4e00
[task 2023-04-19T12:28:34.914Z] 12:28:34     INFO -      rip = 0x00007fff391781c8
[task 2023-04-19T12:28:34.914Z] 12:28:34     INFO -     Found by: previous frame's frame pointer
[task 2023-04-19T12:28:34.914Z] 12:28:34     INFO -  8  AppKit!-[NSAnimation(NSInternal) _runBlocking] + 0x157
[task 2023-04-19T12:28:34.914Z] 12:28:34     INFO -      rbx = 0x00007fff7ad400ad    rbp = 0x0000700008dc4e80
[task 2023-04-19T12:28:34.914Z] 12:28:34     INFO -      rsp = 0x0000700008dc4e40    r12 = 0x00007fff6f7fe800
[task 2023-04-19T12:28:34.914Z] 12:28:34     INFO -      r13 = 0x00000001745b9a10    r14 = 0x000000013aac7ee0
[task 2023-04-19T12:28:34.914Z] 12:28:34     INFO -      r15 = 0x00007fff7ad4dafa    rip = 0x00007fff33ff6150
[task 2023-04-19T12:28:34.914Z] 12:28:34     INFO -     Found by: call frame info
[task 2023-04-19T12:28:34.914Z] 12:28:34     INFO -  9  AppKit!__42-[NSAnimation(NSInternal) _runInNewThread]_block_invoke + 0x60
[task 2023-04-19T12:28:34.914Z] 12:28:34     INFO -      rbx = 0x000000017ea74370    rbp = 0x0000700008dc4ed0
[task 2023-04-19T12:28:34.914Z] 12:28:34     INFO -      rsp = 0x0000700008dc4e90    r12 = 0x0000000000000114
[task 2023-04-19T12:28:34.914Z] 12:28:34     INFO -      r13 = 0x000000011480cdc0    r14 = 0x0000000143cce040
[task 2023-04-19T12:28:34.914Z] 12:28:34     INFO -      r15 = 0x0000000000000000    rip = 0x00007fff33ff5e2d
[task 2023-04-19T12:28:34.914Z] 12:28:34     INFO -     Found by: call frame info
[task 2023-04-19T12:28:34.914Z] 12:28:34     INFO - 10  libdispatch.dylib!_dispatch_call_block_and_release + 0xb
<...>
```