Comment # 1 on bug 1224178 from Andreas Stieger

bug 1222958 comment #22:

                Stack trace of thread 1:
                #0  0x000055ac3fe72d14
_ZN7sandbox19CrashSIGSYS_HandlerERK17arch_seccomp_dataPv (chrome + 0xaab4d14)
                #1  0x000055ac3fe78f02
_ZN7sandbox4Trap6SigSysEiP9siginfo_tP10ucontext_t (chrome + 0xaabaf02)
                #2  0x00007fc0093d5910 __restore_rt (libpthread.so.0 + 0x16910)
                #3  0x00007fc006aead47 alarm (libc.so.6 + 0xe1d47)
                #4  0x000055ac3e248cb8
_ZN4base5debug12_GLOBAL__N_122StackDumpSignalHandlerEiP9siginfo_tPv (chrome +
0x8e8acb8)
                #5  0x00007fc0093d5910 __restore_rt (libpthread.so.0 + 0x16910)
                #6  0x000055ac3e2a443f
_ZN14allocator_shim8internal13PartitionFreeEPKNS_17AllocatorDispatchEPvS4_
(chrome + 0x8ee643f)
                #7  0x000055ac41674314 _ZN5blink12FontCacheKeyD2Ev (chrome +
0xc2b6314)
                #8  0x000055ac416788e9
_ZN3WTF29WeakProcessingHashTableHelperILNS_16WeakHandlingFlagE1EN5blink12FontCacheKeyENS_12KeyValuePairIS3_N5cppgc8internal11BasicMemberIKNS2_17SegmentedFontDataENS6_13WeakMemberTagENS6_26DijkstraWriteBarrierPolicyENS6_22DisabledC>
                #9  0x000055ac3b622d1f
_ZN5cppgc8internal10MarkerBase15ProcessWeaknessEv (chrome + 0x6264d1f)
                #10 0x000055ac3b6229be
_ZN5cppgc8internal10MarkerBase16LeaveAtomicPauseEv (chrome + 0x62649be)
                #11 0x000055ac3af424ba
_ZN2v88internal7CppHeap29FinishMarkingAndStartSweepingEv (chrome + 0x5b844ba)
                #12 0x000055ac3af73740
_ZN2v88internal4Heap24PerformGarbageCollectionENS0_16GarbageCollectorENS0_23GarbageCollectionReasonEPKc
(chrome + 0x5bb5740)
                #13 0x000055ac3af85c19
_ZZN2v88internal4Heap14CollectGarbageENS0_15AllocationSpaceENS0_23GarbageCollectionReasonENS_15GCCallbackFlagsEENK3$_0clEv
(chrome + 0x5bc7c19)
                #14 0x000055ac3af85965
_ZN4heap4base5Stack24SetMarkerAndCallbackImplIZN2v88internal4Heap14CollectGarbageENS4_15AllocationSpaceENS4_23GarbageCollectionReasonENS3_15GCCallbackFlagsEE3$_0EEvPS1_PvPKv
(chrome + 0x5bc7965)
                #15 0x000055ac3b6303db PAPushAllRegistersAndIterateStack
(chrome + 0x62723db)
                #16 0x000055ac3af6f633
_ZN2v88internal4Heap14CollectGarbageENS0_15AllocationSpaceENS0_23GarbageCollectionReasonENS_15GCCallbackFlagsE
(chrome + 0x5bb1633)
                #17 0x000055ac3af87d38
_ZN2v88internal21IncrementalMarkingJob4Task11RunInternalEv (chrome + 0x5bc9d38)
                #18 0x000055ac3e1d5a7b
_ZN4base13TaskAnnotator11RunTaskImplERNS_11PendingTaskE (chrome + 0x8e17a7b)
                #19 0x000055ac3e1f12f3
_ZN4base16sequence_manager8internal35ThreadControllerWithMessagePumpImpl10DoWorkImplEPNS_7LazyNowE
(chrome + 0x8e332f3)
                #20 0x000055ac3e1f0dcf
_ZN4base16sequence_manager8internal35ThreadControllerWithMessagePumpImpl6DoWorkEv
(chrome + 0x8e32dcf)
                #21 0x000055ac3e1f1775
_ZThn240_N4base16sequence_manager8internal35ThreadControllerWithMessagePumpImpl6DoWorkEv
(chrome + 0x8e33775)
                #22 0x000055ac3e18c96e
_ZN4base18MessagePumpDefault3RunEPNS_11MessagePump8DelegateE (chrome +
0x8dce96e)
                #23 0x000055ac3e1f1b3f
_ZN4base16sequence_manager8internal35ThreadControllerWithMessagePumpImpl3RunEbNS_9TimeDeltaE
(chrome + 0x8e33b3f)
                #24 0x000055ac3e1b5979 _ZN4base7RunLoop3RunERKNS_8LocationE
(chrome + 0x8df7979)
                #25 0x000055ac445ceafb
_ZN7content12RendererMainENS_18MainFunctionParamsE (chrome + 0xf210afb)
                #26 0x000055ac3d601ce7
_ZN7content9RunZygoteEPNS_19ContentMainDelegateE (chrome + 0x8243ce7)
                #27 0x000055ac3d60245a
_ZN7content28RunOtherNamedProcessTypeMainERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEENS_18MainFunctionParamsEPNS_19ContentMainDelegateE
(chrome + 0x824445a)
                #28 0x000055ac3d6033a3 _ZN7content21ContentMainRunnerImpl3RunEv
(chrome + 0x82453a3)
                #29 0x000055ac3d600d37
_ZN7content17RunContentProcessENS_17ContentMainParamsEPNS_17ContentMainRunnerE
(chrome + 0x8242d37)
                #30 0x000055ac3d601357
_ZN7content11ContentMainENS_17ContentMainParamsE (chrome + 0x8243357)
                #31 0x000055ac398080a4 ChromeMain (chrome + 0x444a0a4)
                #32 0x00007fc006a3e24d __libc_start_main (libc.so.6 + 0x3524d)
                #33 0x000055ac392d003a _start (chrome + 0x3f1203a)


                Stack trace of thread 29:
                #0  0x00007fc0093d44b3 __lll_lock_wait (libpthread.so.0 +
0x154b3)
                #1  0x00007fc0093cc1d1 __pthread_mutex_lock (libpthread.so.0 +
0xd1d1)
                #2  0x000055ac3b62799c
_ZN5cppgc8internal20PersistentRegionLockC2Ev (chrome + 0x626999c)
                #3  0x000055ac41af981f
_ZN5cppgc8internal26BasicCrossThreadPersistentIN5blink26ScriptPromiseResolverTypedINS2_11ImageBitmapEEENS0_33StrongCrossThreadPersistentPolicyENS0_20IgnoreLocationPolicyENS0_22DisabledCheckingPolicyEEC2EPS5_RKN2v814SourceLocationE>
                #4  0x000055ac43086e9c
_ZN5blink26FrameQueueUnderlyingSourceI13scoped_refptrIN5media11AudioBufferEEE10QueueFrameES4_
(chrome + 0xdcc8e9c)
                #5  0x000055ac43086ccc
_ZN5blink26FrameQueueUnderlyingSourceI13scoped_refptrIN5media11AudioBufferEEE10QueueFrameES4_
(chrome + 0xdcc8ccc)
                #6  0x000055ac430814f0
_ZN5blink25MediaStreamAudioDelivererINS_23WebMediaStreamAudioSinkEE6OnDataERKN5media8AudioBusEN4base9TimeTicksE
(chrome + 0xdcc34f0)
                #7  0x000055ac43081214
_ZN5blink21MediaStreamAudioTrack6OnDataERKN5media8AudioBusEN4base9TimeTicksE
(chrome + 0xdcc3214)
                #8  0x000055ac4307be8f
_ZN5blink25MediaStreamAudioDelivererINS_21MediaStreamAudioTrackEE6OnDataERKN5media8AudioBusEN4base9TimeTicksE
(chrome + 0xdcbde8f)
                #9  0x000055ac430e5fcf
_ZN5blink25ProcessedLocalAudioSource21DeliverProcessedAudioERKN5media8AudioBusEN4base9TimeTicksESt8optionalIdE
(chrome + 0xdd27fcf)
                #10 0x000055ac430e63c9
_ZN5blink25ProcessedLocalAudioSource7CaptureEPKN5media8AudioBusEN4base9TimeTicksERKNS1_15AudioGlitchInfoEdb
(chrome + 0xdd283c9)
                #11 0x000055ac3a344099
_ZN5media16AudioInputDevice19AudioThreadCallback7ProcessEj (chrome + 0x4f86099)
                #12 0x000055ac3a342668
_ZN5media17AudioDeviceThread10ThreadMainEv (chrome + 0x4f84668)
                #13 0x000055ac3e22b90f _ZN4base12_GLOBAL__N_110ThreadFuncEPv
(chrome + 0x8e6d90f)
                #14 0x00007fc0093c96ea start_thread (libpthread.so.0 + 0xa6ea)
                #15 0x00007fc006b2158f __clone (libc.so.6 + 0x11858f)