Bug: Intermittent browser/components/newtab/test/browser/abouthomecache/browser_process_crash.js | application terminated with exit code 1 | application crashed [@ MacFileUtilities::MachoWalker::FindHeader(int, int, long long&)] after application crashed [None
Status: RESOLVED
Priority: P5
Resolution: DUPLICATE
Created: 2020-10-22 06:25:16+00:00
Resolved: 2020-10-26 06:26:16+00:00

**Filed by:** rmaries [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer.html#?job_id=319334463&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/dRRRAuSdSbKTWpz_U_s1Kw/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2020-10-22T06:05:38.052Z] 06:05:38     INFO - TEST-START | browser/components/newtab/test/browser/abouthomecache/browser_process_crash.js
[task 2020-10-22T06:05:43.827Z] 06:05:43     INFO - Buffered messages finished
[task 2020-10-22T06:05:43.827Z] 06:05:43    ERROR - TEST-UNEXPECTED-FAIL | browser/components/newtab/test/browser/abouthomecache/browser_process_crash.js | application terminated with exit code 1
[task 2020-10-22T06:05:43.827Z] 06:05:43     INFO - runtests.py | Application ran for: 0:00:25.726541
[task 2020-10-22T06:05:43.827Z] 06:05:43     INFO - zombiecheck | Reading PID log: /var/folders/s8/_j7pk_d55kq9pc67fqqt282c000017/T/tmpcyua2mpidlog
[task 2020-10-22T06:05:43.828Z] 06:05:43     INFO - ==> process 2883 launched child process 2884
[task 2020-10-22T06:05:43.828Z] 06:05:43     INFO - ==> process 2883 launched child process 2885
[task 2020-10-22T06:05:43.828Z] 06:05:43     INFO - ==> process 2883 launched child process 2886
[task 2020-10-22T06:05:43.828Z] 06:05:43     INFO - ==> process 2883 launched child process 2887
[task 2020-10-22T06:05:43.828Z] 06:05:43     INFO - ==> process 2883 launched child process 2888
[task 2020-10-22T06:05:43.828Z] 06:05:43     INFO - zombiecheck | Checking for orphan process with PID: 2888
[task 2020-10-22T06:05:43.828Z] 06:05:43     INFO - zombiecheck | Checking for orphan process with PID: 2884
[task 2020-10-22T06:05:43.828Z] 06:05:43     INFO - zombiecheck | Checking for orphan process with PID: 2885
[task 2020-10-22T06:05:43.829Z] 06:05:43     INFO - zombiecheck | Checking for orphan process with PID: 2886
[task 2020-10-22T06:05:43.829Z] 06:05:43     INFO - zombiecheck | Checking for orphan process with PID: 2887
[task 2020-10-22T06:05:43.829Z] 06:05:43     INFO - mozcrash Downloading symbols from: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/Fr13Vz-nTX-8oVbcLTN9kQ/artifacts/public/build/target.crashreporter-symbols.zip
[task 2020-10-22T06:05:46.584Z] 06:05:46     INFO - mozcrash Copy/paste: /Users/cltbld/tasks/task_1603336886/fetches/minidump_stackwalk/minidump_stackwalk /var/folders/s8/_j7pk_d55kq9pc67fqqt282c000017/T/tmplhcdVC.mozrunner/minidumps/F43B0451-1B23-432F-ABDB-B952390C95E8.dmp /var/folders/s8/_j7pk_d55kq9pc67fqqt282c000017/T/tmpQgpk0L
[task 2020-10-22T06:05:46.603Z] 06:05:46     INFO - mozcrash Saved minidump as /Users/cltbld/tasks/task_1603336886/build/blobber_upload_dir/F43B0451-1B23-432F-ABDB-B952390C95E8.dmp
[task 2020-10-22T06:05:46.604Z] 06:05:46     INFO - PROCESS-CRASH | browser/components/newtab/test/browser/abouthomecache/browser_process_crash.js | application crashed [None]
[task 2020-10-22T06:05:46.604Z] 06:05:46     INFO - Crash dump filename: /var/folders/s8/_j7pk_d55kq9pc67fqqt282c000017/T/tmplhcdVC.mozrunner/minidumps/F43B0451-1B23-432F-ABDB-B952390C95E8.dmp
[task 2020-10-22T06:05:46.604Z] 06:05:46     INFO - stderr from minidump_stackwalk:
[task 2020-10-22T06:05:46.604Z] 06:05:46     INFO - 2020-10-22 06:05:46: minidump_stackwalk.cc:135: ERROR: Minidump /var/folders/s8/_j7pk_d55kq9pc67fqqt282c000017/T/tmplhcdVC.mozrunner/minidumps/F43B0451-1B23-432F-ABDB-B952390C95E8.dmp could not be read
[task 2020-10-22T06:05:46.604Z] 06:05:46     INFO - mozcrash Copy/paste: /Users/cltbld/tasks/task_1603336886/fetches/minidump_stackwalk/minidump_stackwalk /var/folders/s8/_j7pk_d55kq9pc67fqqt282c000017/T/tmplhcdVC.mozrunner/minidumps/87B60477-0D87-46E3-A600-EE10EEE4B328.dmp /var/folders/s8/_j7pk_d55kq9pc67fqqt282c000017/T/tmpQgpk0L
[task 2020-10-22T06:05:51.140Z] 06:05:51     INFO - mozcrash Saved minidump as /Users/cltbld/tasks/task_1603336886/build/blobber_upload_dir/87B60477-0D87-46E3-A600-EE10EEE4B328.dmp
[task 2020-10-22T06:05:51.140Z] 06:05:51     INFO - mozcrash Saved app info as /Users/cltbld/tasks/task_1603336886/build/blobber_upload_dir/87B60477-0D87-46E3-A600-EE10EEE4B328.extra
[task 2020-10-22T06:05:51.292Z] 06:05:51     INFO - PROCESS-CRASH | browser/components/newtab/test/browser/abouthomecache/browser_process_crash.js | application crashed [@ MacFileUtilities::MachoWalker::FindHeader(int, int, long long&)]
[task 2020-10-22T06:05:51.292Z] 06:05:51     INFO - Crash dump filename: /var/folders/s8/_j7pk_d55kq9pc67fqqt282c000017/T/tmplhcdVC.mozrunner/minidumps/87B60477-0D87-46E3-A600-EE10EEE4B328.dmp
[task 2020-10-22T06:05:51.292Z] 06:05:51     INFO - Operating system: Mac OS X
[task 2020-10-22T06:05:51.292Z] 06:05:51     INFO -                   10.14.5 18F132
[task 2020-10-22T06:05:51.292Z] 06:05:51     INFO - CPU: amd64
[task 2020-10-22T06:05:51.292Z] 06:05:51     INFO -      family 6 model 69 stepping 1
[task 2020-10-22T06:05:51.292Z] 06:05:51     INFO -      4 CPUs
[task 2020-10-22T06:05:51.292Z] 06:05:51     INFO - 
[task 2020-10-22T06:05:51.292Z] 06:05:51     INFO - GPU: UNKNOWN
[task 2020-10-22T06:05:51.292Z] 06:05:51     INFO - 
[task 2020-10-22T06:05:51.292Z] 06:05:51     INFO - Crash reason:  EXC_BAD_ACCESS / KERN_INVALID_ADDRESS
[task 2020-10-22T06:05:51.292Z] 06:05:51     INFO - Crash address: 0x5942000
[task 2020-10-22T06:05:51.292Z] 06:05:51     INFO - Process uptime: 20 seconds
[task 2020-10-22T06:05:51.292Z] 06:05:51     INFO - 
[task 2020-10-22T06:05:51.293Z] 06:05:51     INFO - Thread 34 (crashed)
[task 2020-10-22T06:05:51.293Z] 06:05:51     INFO -  0  XUL!MacFileUtilities::MachoWalker::FindHeader(int, int, long long&) [macho_walker.cc:b253a44b5b436fb99022f6938c241c2749ff8be4 : 134 + 0x0]
[task 2020-10-22T06:05:51.293Z] 06:05:51     INFO -     rax = 0xa3fee250615800c4   rdx = 0x0000000000041000
[task 2020-10-22T06:05:51.293Z] 06:05:51     INFO -     rcx = 0x0000700007de7e10   rbx = 0x0000000001000007
[task 2020-10-22T06:05:51.293Z] 06:05:51     INFO -     rsi = 0x0000000105942000   rdi = 0x0000700007de7dd0
[task 2020-10-22T06:05:51.293Z] 06:05:51     INFO -     rbp = 0x0000700007de7dc0   rsp = 0x0000700007de7d60
[task 2020-10-22T06:05:51.293Z] 06:05:51     INFO -      r8 = 0x0000700007de7e48    r9 = 0x0000700007de7e50
[task 2020-10-22T06:05:51.293Z] 06:05:51     INFO -     r10 = 0x0000700007de7e50   r11 = 0x0000000000000000
[task 2020-10-22T06:05:51.293Z] 06:05:51     INFO -     r12 = 0x0000700007de7e10   r13 = 0x0000700007de7dd0
[task 2020-10-22T06:05:51.293Z] 06:05:51     INFO -     r14 = 0x0000000001000007   r15 = 0x0000000000000003
[task 2020-10-22T06:05:51.293Z] 06:05:51     INFO -     rip = 0x000000010cb1fe80
[task 2020-10-22T06:05:51.293Z] 06:05:51     INFO -     Found by: given as instruction pointer in context
[task 2020-10-22T06:05:51.293Z] 06:05:51     INFO -  1  XUL!MacFileUtilities::MachoID::WalkHeader(int, int, bool (*)(MacFileUtilities::MachoWalker*, load_command*, long long, bool, void*), void*) [macho_id.cc:b253a44b5b436fb99022f6938c241c2749ff8be4 : 243 + 0x24]
[task 2020-10-22T06:05:51.293Z] 06:05:51     INFO -     rbp = 0x0000700007de7e30   rsp = 0x0000700007de7dd0
[task 2020-10-22T06:05:51.293Z] 06:05:51     INFO -     rip = 0x000000010cb1f504
[task 2020-10-22T06:05:51.293Z] 06:05:51     INFO -     Found by: previous frame's frame pointer
[task 2020-10-22T06:05:51.293Z] 06:05:51     INFO -  2  XUL!MacFileUtilities::MachoID::UUIDCommand(int, int, unsigned char*) [macho_id.cc:b253a44b5b436fb99022f6938c241c2749ff8be4 : 159 + 0x10]
[task 2020-10-22T06:05:51.294Z] 06:05:51     INFO -     rbp = 0x0000700007de7e70   rsp = 0x0000700007de7e40
[task 2020-10-22T06:05:51.294Z] 06:05:51     INFO -     rip = 0x000000010cb1f2c1
[task 2020-10-22T06:05:51.294Z] 06:05:51     INFO -     Found by: previous frame's frame pointer
[task 2020-10-22T06:05:51.294Z] 06:05:51     INFO -  3  XUL!google_breakpad::MinidumpGenerator::WriteCVRecord(MDRawModule*, int, int, char const*, bool) [minidump_generator.cc:b253a44b5b436fb99022f6938c241c2749ff8be4 : 1481 + 0x18]
[task 2020-10-22T06:05:51.294Z] 06:05:51     INFO -     rbp = 0x0000700007de8390   rsp = 0x0000700007de7e80
[task 2020-10-22T06:05:51.294Z] 06:05:51     INFO -     rip = 0x000000010cb1cdf5
[task 2020-10-22T06:05:51.294Z] 06:05:51     INFO -     Found by: previous frame's frame pointer
[task 2020-10-22T06:05:51.294Z] 06:05:51     INFO -  4  XUL!google_breakpad::MinidumpGenerator::WriteModuleStream(unsigned int, MDRawModule*) [minidump_generator.cc:b253a44b5b436fb99022f6938c241c2749ff8be4 : 1335 + 0xe]
[task 2020-10-22T06:05:51.294Z] 06:05:51     INFO -     rbp = 0x0000700007de8410   rsp = 0x0000700007de83a0
[task 2020-10-22T06:05:51.294Z] 06:05:51     INFO -     rip = 0x000000010cb1cc21
[task 2020-10-22T06:05:51.294Z] 06:05:51     INFO -     Found by: previous frame's frame pointer
[task 2020-10-22T06:05:51.294Z] 06:05:51     INFO -  5  XUL!google_breakpad::MinidumpGenerator::WriteModuleListStream(MDRawDirectory*) [minidump_generator.cc:b253a44b5b436fb99022f6938c241c2749ff8be4 : 1554 + 0xa]
[task 2020-10-22T06:05:51.294Z] 06:05:51     INFO -     rbp = 0x0000700007de8560   rsp = 0x0000700007de8420
[task 2020-10-22T06:05:51.294Z] 06:05:51     INFO -     rip = 0x000000010cb1b8a2
[task 2020-10-22T06:05:51.295Z] 06:05:51     INFO -     Found by: previous frame's frame pointer
[task 2020-10-22T06:05:51.295Z] 06:05:51     INFO -  6  XUL!google_breakpad::MinidumpGenerator::Write(char const*) [minidump_generator.cc:b253a44b5b436fb99022f6938c241c2749ff8be4 : 269 + 0x22]
[task 2020-10-22T06:05:51.295Z] 06:05:51     INFO -     rbp = 0x0000700007de8630   rsp = 0x0000700007de8570
[task 2020-10-22T06:05:51.295Z] 06:05:51     INFO -     rip = 0x000000010cb19fe2
[task 2020-10-22T06:05:51.295Z] 06:05:51     INFO -     Found by: previous frame's frame pointer
[task 2020-10-22T06:05:51.295Z] 06:05:51     INFO -  7  XUL!google_breakpad::CrashGenerationServer::WaitForOneMessage() [crash_generation_server.cc:b253a44b5b436fb99022f6938c241c2749ff8be4 : 129 + 0x28]
[task 2020-10-22T06:05:51.295Z] 06:05:51     INFO -     rbp = 0x0000700007de8ef0   rsp = 0x0000700007de8640
[task 2020-10-22T06:05:51.295Z] 06:05:51     INFO -     rip = 0x000000010cb17884
[task 2020-10-22T06:05:51.295Z] 06:05:51     INFO -     Found by: previous frame's frame pointer
[task 2020-10-22T06:05:51.295Z] 06:05:51     INFO -  8  XUL!google_breakpad::CrashGenerationServer::WaitForMessages(void*) [crash_generation_server.cc:b253a44b5b436fb99022f6938c241c2749ff8be4 : 96 + 0x8]
[task 2020-10-22T06:05:51.295Z] 06:05:51     INFO -     rbp = 0x0000700007de8f10   rsp = 0x0000700007de8f00
[task 2020-10-22T06:05:51.295Z] 06:05:51     INFO -     rip = 0x000000010cb17678
[task 2020-10-22T06:05:51.295Z] 06:05:51     INFO -     Found by: previous frame's frame pointer
[task 2020-10-22T06:05:51.295Z] 06:05:51     INFO -  9  libsystem_pthread.dylib!_pthread_body + 0x7e
[task 2020-10-22T06:05:51.295Z] 06:05:51     INFO -     rbp = 0x0000700007de8f30   rsp = 0x0000700007de8f20
[task 2020-10-22T06:05:51.295Z] 06:05:51     INFO -     rip = 0x00007fff6debb2eb
[task 2020-10-22T06:05:51.296Z] 06:05:51     INFO -     Found by: previous frame's frame pointer
[task 2020-10-22T06:05:51.296Z] 06:05:51     INFO - 10  libsystem_pthread.dylib!_pthread_start + 0x42
[task 2020-10-22T06:05:51.296Z] 06:05:51     INFO -     rbp = 0x0000700007de8f50   rsp = 0x0000700007de8f40
[task 2020-10-22T06:05:51.296Z] 06:05:51     INFO -     rip = 0x00007fff6debe249
[task 2020-10-22T06:05:51.296Z] 06:05:51     INFO -     Found by: previous frame's frame pointer
[task 2020-10-22T06:05:51.296Z] 06:05:51     INFO - 11  libsystem_pthread.dylib!thread_start + 0xd
[task 2020-10-22T06:05:51.296Z] 06:05:51     INFO -     rbp = 0x0000700007de8f78   rsp = 0x0000700007de8f60
[task 2020-10-22T06:05:51.296Z] 06:05:51     INFO -     rip = 0x00007fff6deba40d
[task 2020-10-22T06:05:51.296Z] 06:05:51     INFO -     Found by: previous frame's frame pointer
[task 2020-10-22T06:05:51.296Z] 06:05:51     INFO - 12  XUL + 0x3f74660
[task 2020-10-22T06:05:51.296Z] 06:05:51     INFO -     rsp = 0x0000700007de9090   rip = 0x000000010cb17660
[task 2020-10-22T06:05:51.296Z] 06:05:51     INFO -     Found by: stack scanning```