Closed Bug 1358890 Opened 5 years ago Closed 5 months ago

Crash in FlagPhiInputsAsHavingRemovedUses

Categories

(Core :: JavaScript Engine: JIT, defect, P3)

50 Branch
All
Windows
defect

Tracking

()

RESOLVED WORKSFORME
Tracking Status
firefox-esr45 --- unaffected
firefox-esr52 --- affected
firefox53 --- wontfix
firefox54 --- wontfix
firefox55 --- fix-optional

People

(Reporter: philipp, Unassigned)

References

(Blocks 1 open bug)

Details

(Keywords: crash, regression)

Crash Data

This bug was filed from the Socorro interface and is 
report bp-79744970-4893-435f-9f92-41f170170423.
=============================================================
Crashing Thread (7)
Frame 	Module 	Signature 	Source
0 	xul.dll 	FlagPhiInputsAsHavingRemovedUses 	js/src/jit/IonAnalysis.cpp:151
1 	xul.dll 	FlagAllOperandsAsHavingRemovedUses 	js/src/jit/IonAnalysis.cpp:244
2 	xul.dll 	js::jit::PruneUnusedBranches(js::jit::MIRGenerator*, js::jit::MIRGraph&) 	js/src/jit/IonAnalysis.cpp:501
3 	xul.dll 	js::jit::OptimizeMIR(js::jit::MIRGenerator*) 	js/src/jit/Ion.cpp:1516
4 	xul.dll 	js::jit::MacroAssembler::PopRegsInMaskIgnore(js::jit::LiveSet<js::jit::RegisterSet>, js::jit::LiveSet<js::jit::RegisterSet>) 	js/src/jit/x86-shared/MacroAssembler-x86-shared.cpp:504
5 	xul.dll 	js::jit::CompileBackEnd(js::jit::MIRGenerator*) 	js/src/jit/Ion.cpp:2024
6 	xul.dll 	js::HelperThread::threadLoop() 	js/src/vm/HelperThreads.cpp:1873
7 	xul.dll 	js::detail::ThreadTrampoline<void (&)(void*), js::HelperThread*>::Start(void*) 	js/src/threading/Thread.h:227
8 	ucrtbase.dll 	_o__CIpow 	
9 	kernel32.dll 	BaseThreadInitThunk 	
10 	ntdll.dll 	__RtlUserThreadStart 	
11 	ntdll.dll 	_RtlUserThreadStart

crashes with this signature started appearing on windows with firefox version 50 and subsequent builds. maybe that's related to bug 1304081 which landed in that timeframe...
overall the signature is fairly low-volume though.
Low volume crash since 50, so I'm removing this bug from regression triage.
Priority: -- → P2
Moving to p3 because no activity for at least 1 year(s).
See https://github.com/mozilla/bug-handling/blob/master/policy/triage-bugzilla.md#how-do-you-triage for more information
Priority: P2 → P3
QA Whiteboard: qa-not-actionable

Closing because no crashes reported for 12 weeks.

Status: NEW → RESOLVED
Closed: 5 months ago
Resolution: --- → WORKSFORME
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