Filed by: ncsoregi [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=334281662&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/FRA4tIJuQtuqmODWKLZlMA/runs/0/artifacts/public/logs/live_backing.log

[task 2021-03-24T12:57:17.732Z] 12:57:17     INFO - PROCESS-CRASH | browser/components/urlbar/tests/browser/browser_searchHistoryLimit.js | application crashed [@ js::jit::LIRGeneratorShared::define<(unsigned long)0>(js::jit::details::LInstructionFixedDefsTempsHelper<(unsigned long)1, (unsigned long)0>*, js::jit::MDefinition*, js::jit::LDefinition::Policy)]
[task 2021-03-24T12:57:17.732Z] 12:57:17     INFO - Mozilla crash reason: MOZ_CRASH(unexpected type)
[task 2021-03-24T12:57:17.732Z] 12:57:17     INFO - Crash dump filename: /var/folders/wm/704cltr14k9d515w3mrgh470000017/T/tmpjuT8en.mozrunner/minidumps/12612E2E-1AF3-435A-B4D4-B41D00B68F57.dmp
[task 2021-03-24T12:57:17.732Z] 12:57:17     INFO - Operating system: Mac OS X
[task 2021-03-24T12:57:17.732Z] 12:57:17     INFO -                   10.14.5 18F132
[task 2021-03-24T12:57:17.733Z] 12:57:17     INFO - CPU: amd64
[task 2021-03-24T12:57:17.733Z] 12:57:17     INFO -      family 6 model 69 stepping 1
[task 2021-03-24T12:57:17.733Z] 12:57:17     INFO -      4 CPUs
[task 2021-03-24T12:57:17.733Z] 12:57:17     INFO - 
[task 2021-03-24T12:57:17.733Z] 12:57:17     INFO - GPU: UNKNOWN
[task 2021-03-24T12:57:17.733Z] 12:57:17     INFO - 
[task 2021-03-24T12:57:17.733Z] 12:57:17     INFO - Crash reason:  EXC_BAD_ACCESS / KERN_INVALID_ADDRESS
[task 2021-03-24T12:57:17.733Z] 12:57:17     INFO - Crash address: 0x0
[task 2021-03-24T12:57:17.733Z] 12:57:17     INFO - Process uptime: 296 seconds
[task 2021-03-24T12:57:17.733Z] 12:57:17     INFO - 
[task 2021-03-24T12:57:17.733Z] 12:57:17     INFO - Thread 8 (crashed)
[task 2021-03-24T12:57:17.733Z] 12:57:17     INFO -  0  XUL!void js::jit::LIRGeneratorShared::define<(unsigned long)0>(js::jit::details::LInstructionFixedDefsTempsHelper<(unsigned long)1, (unsigned long)0>*, js::jit::MDefinition*, js::jit::LDefinition::Policy) [Lowering-shared-inl.h:973fbed4566f7f4aba4f02c7afd9e97ac608e60c : 41 + 0x11]
[task 2021-03-24T12:57:17.733Z] 12:57:17     INFO -     rax = 0x00000001084b2a37   rdx = 0x00000000007d07ff
[task 2021-03-24T12:57:17.734Z] 12:57:17     INFO -     rcx = 0x00000001009e4420   rbx = 0x0000000113d3abf0
[task 2021-03-24T12:57:17.734Z] 12:57:17     INFO -     rsi = 0x000000012a905638   rdi = 0x0000700005cb3fa0
[task 2021-03-24T12:57:17.734Z] 12:57:17     INFO -     rbp = 0x0000700005cb3ed0   rsp = 0x0000700005cb3ea0
[task 2021-03-24T12:57:17.734Z] 12:57:17     INFO -      r8 = 0x0000000000006966    r9 = 0x0000000113d37440
[task 2021-03-24T12:57:17.734Z] 12:57:17     INFO -     r10 = 0x0000000113d37290   r11 = 0x000000005532eb68
[task 2021-03-24T12:57:17.734Z] 12:57:17     INFO -     r12 = 0x0000000000000001   r13 = 0x0000700005cb3fa0
[task 2021-03-24T12:57:17.734Z] 12:57:17     INFO -     r14 = 0x0000700005cb3fa0   r15 = 0x0000000113d3abf0
[task 2021-03-24T12:57:17.734Z] 12:57:17     INFO -     rip = 0x0000000105862abd
[task 2021-03-24T12:57:17.734Z] 12:57:17     INFO -     Found by: given as instruction pointer in context
[task 2021-03-24T12:57:17.734Z] 12:57:17     INFO -  1  XUL!js::jit::LIRGenerator::visitInstruction(js::jit::MInstruction*) [Lowering.cpp:973fbed4566f7f4aba4f02c7afd9e97ac608e60c : 5654 + 0xb]
[task 2021-03-24T12:57:17.734Z] 12:57:17     INFO -     rbp = 0x0000700005cb3ef0   rsp = 0x0000700005cb3ee0
[task 2021-03-24T12:57:17.734Z] 12:57:17     INFO -     rip = 0x00000001058a3252
[task 2021-03-24T12:57:17.734Z] 12:57:17     INFO -     Found by: previous frame's frame pointer
[task 2021-03-24T12:57:17.735Z] 12:57:17     INFO -  2  XUL!js::jit::LIRGenerator::visitBlock(js::jit::MBasicBlock*) [Lowering.cpp:973fbed4566f7f4aba4f02c7afd9e97ac608e60c : 5721 + 0x8]
[task 2021-03-24T12:57:17.735Z] 12:57:17     INFO -     rbp = 0x0000700005cb3f50   rsp = 0x0000700005cb3f00
[task 2021-03-24T12:57:17.735Z] 12:57:17     INFO -     rip = 0x00000001058a33b8
[task 2021-03-24T12:57:17.735Z] 12:57:17     INFO -     Found by: previous frame's frame pointer
[task 2021-03-24T12:57:17.735Z] 12:57:17     INFO -  3  XUL!js::jit::LIRGenerator::generate() [Lowering.cpp:973fbed4566f7f4aba4f02c7afd9e97ac608e60c : 5795 + 0xb]
[task 2021-03-24T12:57:17.735Z] 12:57:17     INFO -     rbp = 0x0000700005cb3f70   rsp = 0x0000700005cb3f60
[task 2021-03-24T12:57:17.735Z] 12:57:17     INFO -     rip = 0x00000001058a3645
[task 2021-03-24T12:57:17.735Z] 12:57:17     INFO -     Found by: previous frame's frame pointer
[task 2021-03-24T12:57:17.735Z] 12:57:17     INFO -  4  XUL!js::jit::GenerateLIR(js::jit::MIRGenerator*) [Ion.cpp:973fbed4566f7f4aba4f02c7afd9e97ac608e60c : 1497 + 0x5]
[task 2021-03-24T12:57:17.735Z] 12:57:17     INFO -     rbp = 0x0000700005cb4a10   rsp = 0x0000700005cb3f80
[task 2021-03-24T12:57:17.735Z] 12:57:17     INFO -     rip = 0x0000000105832706
[task 2021-03-24T12:57:17.735Z] 12:57:17     INFO -     Found by: previous frame's frame pointer
[task 2021-03-24T12:57:17.735Z] 12:57:17     INFO -  5  XUL!js::jit::CompileBackEnd(js::jit::MIRGenerator*, js::jit::WarpSnapshot*) [Ion.cpp:973fbed4566f7f4aba4f02c7afd9e97ac608e60c : 1591 + 0x8]
[task 2021-03-24T12:57:17.736Z] 12:57:17     INFO -     rbp = 0x0000700005cb4d60   rsp = 0x0000700005cb4a20
[task 2021-03-24T12:57:17.736Z] 12:57:17     INFO -     rip = 0x0000000105832ae7
[task 2021-03-24T12:57:17.736Z] 12:57:17     INFO -     Found by: previous frame's frame pointer
[task 2021-03-24T12:57:17.736Z] 12:57:17     INFO -  6  XUL!js::jit::IonCompileTask::runTask() [IonCompileTask.cpp:973fbed4566f7f4aba4f02c7afd9e97ac608e60c : 56 + 0xd]
[task 2021-03-24T12:57:17.736Z] 12:57:17     INFO -     rbp = 0x0000700005cb4e10   rsp = 0x0000700005cb4d70
[task 2021-03-24T12:57:17.736Z] 12:57:17     INFO -     rip = 0x000000010584c2a0
[task 2021-03-24T12:57:17.736Z] 12:57:17     INFO -     Found by: previous frame's frame pointer
[task 2021-03-24T12:57:17.736Z] 12:57:17     INFO -  7  XUL!js::jit::IonCompileTask::runHelperThreadTask(js::AutoLockHelperThreadState&) [IonCompileTask.cpp:973fbed4566f7f4aba4f02c7afd9e97ac608e60c : 30 + 0x8]
[task 2021-03-24T12:57:17.736Z] 12:57:17     INFO -     rbp = 0x0000700005cb4e40   rsp = 0x0000700005cb4e20
[task 2021-03-24T12:57:17.736Z] 12:57:17     INFO -     rip = 0x000000010584c163
[task 2021-03-24T12:57:17.736Z] 12:57:17     INFO -     Found by: previous frame's frame pointer
[task 2021-03-24T12:57:17.736Z] 12:57:17     INFO -  8  XUL!js::GlobalHelperThreadState::runTaskLocked(js::HelperThreadTask*, js::AutoLockHelperThreadState&) [HelperThreads.cpp:973fbed4566f7f4aba4f02c7afd9e97ac608e60c : 2706 + 0xb]
[task 2021-03-24T12:57:17.736Z] 12:57:17     INFO -     rbp = 0x0000700005cb4e70   rsp = 0x0000700005cb4e50
[task 2021-03-24T12:57:17.737Z] 12:57:17     INFO -     rip = 0x00000001052173b8
[task 2021-03-24T12:57:17.737Z] 12:57:17     INFO -     Found by: previous frame's frame pointer
[task 2021-03-24T12:57:17.737Z] 12:57:17     INFO -  9  XUL!js::HelperThread::threadLoop() [HelperThreads.cpp:973fbed4566f7f4aba4f02c7afd9e97ac608e60c : 2678 + 0x17]
[task 2021-03-24T12:57:17.737Z] 12:57:17     INFO -     rbp = 0x0000700005cb4ed0   rsp = 0x0000700005cb4e80
[task 2021-03-24T12:57:17.737Z] 12:57:17     INFO -     rip = 0x0000000105216222
[task 2021-03-24T12:57:17.737Z] 12:57:17     INFO -     Found by: previous frame's frame pointer
[task 2021-03-24T12:57:17.737Z] 12:57:17     INFO - 10  XUL!js::HelperThread::ThreadMain(void*) [HelperThreads.cpp:973fbed4566f7f4aba4f02c7afd9e97ac608e60c : 2369 + 0x8]
[task 2021-03-24T12:57:17.737Z] 12:57:17     INFO -     rbp = 0x0000700005cb4ef0   rsp = 0x0000700005cb4ee0
[task 2021-03-24T12:57:17.737Z] 12:57:17     INFO -     rip = 0x000000010521618b
[task 2021-03-24T12:57:17.737Z] 12:57:17     INFO -     Found by: previous frame's frame pointer
[task 2021-03-24T12:57:17.738Z] 12:57:17     INFO - 11  XUL!js::detail::ThreadTrampoline<void (&)(void*), js::HelperThread*>::Start(void*) [Thread.h:973fbed4566f7f4aba4f02c7afd9e97ac608e60c : 205 + 0x1a]
[task 2021-03-24T12:57:17.738Z] 12:57:17     INFO -     rbp = 0x0000700005cb4f10   rsp = 0x0000700005cb4f00
[task 2021-03-24T12:57:17.738Z] 12:57:17     INFO -     rip = 0x0000000105245e34
[task 2021-03-24T12:57:17.738Z] 12:57:17     INFO -     Found by: previous frame's frame pointer
[task 2021-03-24T12:57:17.738Z] 12:57:17     INFO - 12  libsystem_pthread.dylib!_pthread_body + 0x7e
[task 2021-03-24T12:57:17.738Z] 12:57:17     INFO -     rbp = 0x0000700005cb4f30   rsp = 0x0000700005cb4f20
[task 2021-03-24T12:57:17.738Z] 12:57:17     INFO -     rip = 0x00007fff67a6f2eb
[task 2021-03-24T12:57:17.738Z] 12:57:17     INFO -     Found by: previous frame's frame pointer
[task 2021-03-24T12:57:17.738Z] 12:57:17     INFO - 13  libsystem_pthread.dylib!_pthread_start + 0x42
[task 2021-03-24T12:57:17.738Z] 12:57:17     INFO -     rbp = 0x0000700005cb4f50   rsp = 0x0000700005cb4f40
[task 2021-03-24T12:57:17.738Z] 12:57:17     INFO -     rip = 0x00007fff67a72249
[task 2021-03-24T12:57:17.738Z] 12:57:17     INFO -     Found by: previous frame's frame pointer
[task 2021-03-24T12:57:17.738Z] 12:57:17     INFO - 14  libsystem_pthread.dylib!thread_start + 0xd
[task 2021-03-24T12:57:17.739Z] 12:57:17     INFO -     rbp = 0x0000700005cb4f78   rsp = 0x0000700005cb4f60
[task 2021-03-24T12:57:17.739Z] 12:57:17     INFO -     rip = 0x00007fff67a6e40d
[task 2021-03-24T12:57:17.739Z] 12:57:17     INFO -     Found by: previous frame's frame pointer
[task 2021-03-24T12:57:17.739Z] 12:57:17     INFO - 15  XUL + 0x429be10
[task 2021-03-24T12:57:17.739Z] 12:57:17     INFO -     rsp = 0x0000700005cb5090   rip = 0x0000000105245e10
[task 2021-03-24T12:57:17.739Z] 12:57:17     INFO -     Found by: stack scanning
[task 2021-03-24T12:57:17.739Z] 12:57:17     INFO - ```