1852357 - Crash in [@ IPCError-browser | RecvSetCookies]

Status: RESOLVED FIXED

(Core :: Privacy: Anti-Tracking, defect)

Description

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

42 crashes from 28 installations starting with Firefox 119.0a1 20230907213402
Crash report: https://crash-stats.mozilla.org/report/index/1c5ce623-c8ad-488c-a90a-1d8000230908

Reason: EXCEPTION_BREAKPOINT

Top 10 frames of crashing thread:

0  ntdll.dll  ZwFreeVirtualMemory  
1  KERNELBASE.dll  VirtualFree  
2  mozglue.dll  pages_decommit  memory/build/mozjemalloc.cpp:1691
2  mozglue.dll  arena_t::Purge  memory/build/mozjemalloc.cpp:2891
3  mozglue.dll  arena_t::DallocRun  memory/build/mozjemalloc.cpp:3026
4  mozglue.dll  arena_t::DallocSmall  memory/build/mozjemalloc.cpp:3735
4  mozglue.dll  arena_dalloc  memory/build/mozjemalloc.cpp:3809
4  mozglue.dll  BaseAllocator::free  memory/build/mozjemalloc.cpp:4634
4  mozglue.dll  Allocator<MozJemallocBase>::free  memory/build/malloc_decls.h:54
4  mozglue.dll  PageFree  memory/replace/phc/PHC.cpp:1408

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The bug is linked to a topcrash signature, which matches the following criterion:

• Top 10 desktop browser crashes on nightly

For more information, please visit BugBot documentation.

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

The bug is marked as tracked for firefox119 (nightly). We have limited time to fix this, the soft freeze is in 10 days. However, the bug still isn't assigned.

:dmehic, could you please find an assignee for this tracked bug? Given that it is a regression and we know the cause, we could also simply backout the regressor. If you disagree with the tracking decision, please talk with the release managers.

For more information, please visit BugBot documentation.

Comment 3

[Donal Meehan [:dmeehan]]

Due to the volume in nightly bumping the Fx119 tracking to blocking

Comment 4

[Paul Zühlcke [:pbz]]

The feature isn't enabled by default, so we could just back Bug 1839918 out and I can re-land a fixed version. Does that sound good?

Comment 5

[Dan Mehic]

Thanks Donal, please go ahead with backing out the regressor bug.

Comment 6

[Donal Meehan [:dmeehan]]

Requested the sheriffs to back out

Comment 7

[Cosmin Sabou [:CosminS]]

Backed out the regressor here: https://hg.mozilla.org/mozilla-central/rev/f867b611aabbedcc08865c1cd8e3ba4dab7cd99c