Bug: Intermittent browser/components/sessionstore/test/browser_background_tab_crash.js | application terminated with exit code 1 | application crashed [None] | application crashed [@ MacFileUtilities::MachoWalker::FindHeader(int, int, long long&)]
Status: RESOLVED
Priority: P5
Resolution: DUPLICATE
Created: 2020-09-16 12:19:59+00:00
Resolved: 2020-10-06 11:27:35+00:00

**Filed by:** rmaries [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer.html#?job_id=315822808&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/MDCjJ6KsQcecke9hwDNE6w/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2020-09-16T11:45:02.354Z] 11:45:02     INFO - TEST-START | browser/components/sessionstore/test/browser_background_tab_crash.js
[task 2020-09-16T11:45:12.989Z] 11:45:12     INFO - TEST-PASS | browser/components/sessionstore/test/browser_background_tab_crash.js | tab is remote - true == true - 
[task 2020-09-16T11:45:12.989Z] 11:45:12     INFO - Buffered messages finished
[task 2020-09-16T11:45:12.989Z] 11:45:12    ERROR - TEST-UNEXPECTED-FAIL | browser/components/sessionstore/test/browser_background_tab_crash.js | application terminated with exit code 1
[task 2020-09-16T11:45:12.990Z] 11:45:12     INFO - runtests.py | Application ran for: 0:01:31.423931
[task 2020-09-16T11:45:12.990Z] 11:45:12     INFO - zombiecheck | Reading PID log: /var/folders/s9/mk_t00wd14s76_nrbk5tbbch000017/T/tmp2ImCuPpidlog
[task 2020-09-16T11:45:12.990Z] 11:45:12     INFO - ==> process 2453 launched child process 2454
[task 2020-09-16T11:45:12.990Z] 11:45:12     INFO - ==> process 2453 launched child process 2455
[task 2020-09-16T11:45:12.990Z] 11:45:12     INFO - ==> process 2453 launched child process 2456
[task 2020-09-16T11:45:12.990Z] 11:45:12     INFO - ==> process 2453 launched child process 2457
[task 2020-09-16T11:45:12.991Z] 11:45:12     INFO - ==> process 2453 launched child process 2458
[task 2020-09-16T11:45:12.991Z] 11:45:12     INFO - ==> process 2453 launched child process 2459
[task 2020-09-16T11:45:12.991Z] 11:45:12     INFO - ==> process 2453 launched child process 2460
[task 2020-09-16T11:45:12.991Z] 11:45:12     INFO - ==> process 2453 launched child process 2467
[task 2020-09-16T11:45:12.991Z] 11:45:12     INFO - ==> process 2453 launched child process 2468
[task 2020-09-16T11:45:12.991Z] 11:45:12     INFO - ==> process 2453 launched child process 2469
[task 2020-09-16T11:45:12.991Z] 11:45:12     INFO - zombiecheck | Checking for orphan process with PID: 2467
[task 2020-09-16T11:45:12.992Z] 11:45:12     INFO - zombiecheck | Checking for orphan process with PID: 2468
[task 2020-09-16T11:45:12.992Z] 11:45:12     INFO - zombiecheck | Checking for orphan process with PID: 2469
[task 2020-09-16T11:45:12.992Z] 11:45:12     INFO - zombiecheck | Checking for orphan process with PID: 2454
[task 2020-09-16T11:45:12.995Z] 11:45:12     INFO - zombiecheck | Checking for orphan process with PID: 2455
[task 2020-09-16T11:45:12.995Z] 11:45:12     INFO - zombiecheck | Checking for orphan process with PID: 2456
[task 2020-09-16T11:45:12.996Z] 11:45:12     INFO - zombiecheck | Checking for orphan process with PID: 2457
[task 2020-09-16T11:45:12.996Z] 11:45:12     INFO - zombiecheck | Checking for orphan process with PID: 2458
[task 2020-09-16T11:45:12.996Z] 11:45:12     INFO - zombiecheck | Checking for orphan process with PID: 2459
[task 2020-09-16T11:45:12.996Z] 11:45:12     INFO - zombiecheck | Checking for orphan process with PID: 2460
[task 2020-09-16T11:45:12.996Z] 11:45:12     INFO - mozcrash Downloading symbols from: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/DPkyyUYfT1eQ1-quwbTpYw/artifacts/public/build/target.crashreporter-symbols.zip
[task 2020-09-16T11:45:19.054Z] 11:45:19     INFO - mozcrash Copy/paste: /Users/cltbld/tasks/task_1600250187/fetches/minidump_stackwalk/minidump_stackwalk /var/folders/s9/mk_t00wd14s76_nrbk5tbbch000017/T/tmpNQP1F9.mozrunner/minidumps/9836581F-957F-4827-B77D-F236415234BC.dmp /var/folders/s9/mk_t00wd14s76_nrbk5tbbch000017/T/tmp6TdhsJ
[task 2020-09-16T11:45:19.066Z] 11:45:19     INFO - mozcrash Saved minidump as /Users/cltbld/tasks/task_1600250187/build/blobber_upload_dir/9836581F-957F-4827-B77D-F236415234BC.dmp
[task 2020-09-16T11:45:19.066Z] 11:45:19     INFO - PROCESS-CRASH | browser/components/sessionstore/test/browser_background_tab_crash.js | application crashed [None]
[task 2020-09-16T11:45:19.066Z] 11:45:19     INFO - Crash dump filename: /var/folders/s9/mk_t00wd14s76_nrbk5tbbch000017/T/tmpNQP1F9.mozrunner/minidumps/9836581F-957F-4827-B77D-F236415234BC.dmp
[task 2020-09-16T11:45:19.066Z] 11:45:19     INFO - stderr from minidump_stackwalk:
[task 2020-09-16T11:45:19.066Z] 11:45:19     INFO - 2020-09-16 11:45:19: minidump_stackwalk.cc:135: ERROR: Minidump /var/folders/s9/mk_t00wd14s76_nrbk5tbbch000017/T/tmpNQP1F9.mozrunner/minidumps/9836581F-957F-4827-B77D-F236415234BC.dmp could not be read
[task 2020-09-16T11:45:19.066Z] 11:45:19     INFO - mozcrash Copy/paste: /Users/cltbld/tasks/task_1600250187/fetches/minidump_stackwalk/minidump_stackwalk /var/folders/s9/mk_t00wd14s76_nrbk5tbbch000017/T/tmpNQP1F9.mozrunner/minidumps/82A79458-11EA-42C0-8B8E-F4ADFDF14220.dmp /var/folders/s9/mk_t00wd14s76_nrbk5tbbch000017/T/tmp6TdhsJ
[task 2020-09-16T11:45:24.872Z] 11:45:24     INFO - mozcrash Saved minidump as /Users/cltbld/tasks/task_1600250187/build/blobber_upload_dir/82A79458-11EA-42C0-8B8E-F4ADFDF14220.dmp
[task 2020-09-16T11:45:24.872Z] 11:45:24     INFO - mozcrash Saved app info as /Users/cltbld/tasks/task_1600250187/build/blobber_upload_dir/82A79458-11EA-42C0-8B8E-F4ADFDF14220.extra
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO - PROCESS-CRASH | browser/components/sessionstore/test/browser_background_tab_crash.js | application crashed [@ MacFileUtilities::MachoWalker::FindHeader(int, int, long long&)]
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO - Crash dump filename: /var/folders/s9/mk_t00wd14s76_nrbk5tbbch000017/T/tmpNQP1F9.mozrunner/minidumps/82A79458-11EA-42C0-8B8E-F4ADFDF14220.dmp
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO - Operating system: Mac OS X
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO -                   10.14.5 18F132
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO - CPU: amd64
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO -      family 6 model 69 stepping 1
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO -      4 CPUs
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO - 
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO - GPU: UNKNOWN
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO - 
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO - Crash reason:  EXC_BAD_ACCESS / KERN_INVALID_ADDRESS
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO - Crash address: 0x1f700000
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO - Process uptime: 86 seconds
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO - 
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO - Thread 30 (crashed)
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO -  0  XUL!MacFileUtilities::MachoWalker::FindHeader(int, int, long long&) [macho_walker.cc:d8078e1dea25fe8e1452f6785d52c607fb748acd : 134 + 0x0]
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO -     rax = 0xc105e4accac30041   rdx = 0x00000000000e3000
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO -     rcx = 0x000070000478fe10   rbx = 0x0000000001000007
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO -     rsi = 0x000000011f700000   rdi = 0x000070000478fdd0
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO -     rbp = 0x000070000478fdc0   rsp = 0x000070000478fd60
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO -      r8 = 0x000070000478fe48    r9 = 0x000070000478fe50
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO -     r10 = 0x000070000478fe50   r11 = 0x0000000000000000
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO -     r12 = 0x000070000478fe10   r13 = 0x000070000478fdd0
[task 2020-09-16T11:45:25.039Z] 11:45:25     INFO -     r14 = 0x0000000001000007   r15 = 0x0000000000000003
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     rip = 0x0000000112214f70
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     Found by: given as instruction pointer in context
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -  1  XUL!MacFileUtilities::MachoID::WalkHeader(int, int, bool (*)(MacFileUtilities::MachoWalker*, load_command*, long long, bool, void*), void*) [macho_id.cc:d8078e1dea25fe8e1452f6785d52c607fb748acd : 243 + 0x24]
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     rbp = 0x000070000478fe30   rsp = 0x000070000478fdd0
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     rip = 0x00000001122145f4
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     Found by: previous frame's frame pointer
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -  2  XUL!MacFileUtilities::MachoID::UUIDCommand(int, int, unsigned char*) [macho_id.cc:d8078e1dea25fe8e1452f6785d52c607fb748acd : 159 + 0x10]
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     rbp = 0x000070000478fe70   rsp = 0x000070000478fe40
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     rip = 0x00000001122143b1
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     Found by: previous frame's frame pointer
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -  3  XUL!google_breakpad::MinidumpGenerator::WriteCVRecord(MDRawModule*, int, int, char const*, bool) [minidump_generator.cc:d8078e1dea25fe8e1452f6785d52c607fb748acd : 1481 + 0x18]
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     rbp = 0x0000700004790390   rsp = 0x000070000478fe80
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     rip = 0x0000000112211ee5
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     Found by: previous frame's frame pointer
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -  4  XUL!google_breakpad::MinidumpGenerator::WriteModuleStream(unsigned int, MDRawModule*) [minidump_generator.cc:d8078e1dea25fe8e1452f6785d52c607fb748acd : 1335 + 0xe]
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     rbp = 0x0000700004790410   rsp = 0x00007000047903a0
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     rip = 0x0000000112211d11
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     Found by: previous frame's frame pointer
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -  5  XUL!google_breakpad::MinidumpGenerator::WriteModuleListStream(MDRawDirectory*) [minidump_generator.cc:d8078e1dea25fe8e1452f6785d52c607fb748acd : 1554 + 0xa]
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     rbp = 0x0000700004790560   rsp = 0x0000700004790420
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     rip = 0x0000000112210992
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     Found by: previous frame's frame pointer
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -  6  XUL!google_breakpad::MinidumpGenerator::Write(char const*) [minidump_generator.cc:d8078e1dea25fe8e1452f6785d52c607fb748acd : 269 + 0x22]
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     rbp = 0x0000700004790630   rsp = 0x0000700004790570
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     rip = 0x000000011220f0d2
[task 2020-09-16T11:45:25.040Z] 11:45:25     INFO -     Found by: previous frame's frame pointer
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -  7  XUL!google_breakpad::CrashGenerationServer::WaitForOneMessage() [crash_generation_server.cc:d8078e1dea25fe8e1452f6785d52c607fb748acd : 129 + 0x28]
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -     rbp = 0x0000700004790ef0   rsp = 0x0000700004790640
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -     rip = 0x000000011220c974
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -     Found by: previous frame's frame pointer
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -  8  XUL!google_breakpad::CrashGenerationServer::WaitForMessages(void*) [crash_generation_server.cc:d8078e1dea25fe8e1452f6785d52c607fb748acd : 96 + 0x8]
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -     rbp = 0x0000700004790f10   rsp = 0x0000700004790f00
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -     rip = 0x000000011220c768
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -     Found by: previous frame's frame pointer
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -  9  libsystem_pthread.dylib!_pthread_body + 0x7e
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -     rbp = 0x0000700004790f30   rsp = 0x0000700004790f20
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -     rip = 0x00007fff63e272eb
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -     Found by: previous frame's frame pointer
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO - 10  libsystem_pthread.dylib!_pthread_start + 0x42
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -     rbp = 0x0000700004790f50   rsp = 0x0000700004790f40
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -     rip = 0x00007fff63e2a249
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -     Found by: previous frame's frame pointer
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO - 11  libsystem_pthread.dylib!thread_start + 0xd
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -     rbp = 0x0000700004790f78   rsp = 0x0000700004790f60
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -     rip = 0x00007fff63e2640d
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -     Found by: previous frame's frame pointer
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO - 12  XUL + 0x3f35750
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -     rsp = 0x0000700004791090   rip = 0x000000011220c750
[task 2020-09-16T11:45:25.041Z] 11:45:25     INFO -     Found by: stack scanning```