(Not sure of the component or if there is already a bug for this - quit an obvious bug, Ryan?) There has been recently filed a number of intermittent crashes on this platform with missing symbols. I will slowly add them here as dependencies so we can track them. An example stack: [task 2017-08-22T23:12:49.655646Z] 23:12:49 INFO - Thread 13 (crashed) [task 2017-08-22T23:12:49.656146Z] 23:12:49 INFO - 0 libxul.so + 0x58c40 [task 2017-08-22T23:12:49.656526Z] 23:12:49 INFO - r0 = 0x00000086 r1 = 0x64745a60 r2 = 0x64745a60 r3 = 0x00000000 [task 2017-08-22T23:12:49.656969Z] 23:12:49 INFO - r4 = 0x45c0b570 r5 = 0x45c0b554 r6 = 0x529f35bc r7 = 0x45c0b540 [task 2017-08-22T23:12:49.657417Z] 23:12:49 INFO - r8 = 0x529f35bc r9 = 0x434d19d8 r10 = 0x43053367 r12 = 0x00000003 [task 2017-08-22T23:12:49.657859Z] 23:12:49 INFO - fp = 0x529f3604 sp = 0x529f3590 lr = 0x40715bc3 pc = 0x40716c40 [task 2017-08-22T23:12:49.658291Z] 23:12:49 INFO - Found by: given as instruction pointer in context [task 2017-08-22T23:12:49.658682Z] 23:12:49 INFO - 1 libxul.so + 0x5ad57 [task 2017-08-22T23:12:49.659083Z] 23:12:49 INFO - sp = 0x529f3598 pc = 0x40718d59 [task 2017-08-22T23:12:49.659494Z] 23:12:49 INFO - Found by: stack scanning [task 2017-08-22T23:12:49.659903Z] 23:12:49 INFO - 2 libxul.so + 0x71093 [task 2017-08-22T23:12:49.660266Z] 23:12:49 INFO - sp = 0x529f35a8 pc = 0x4072f095 [task 2017-08-22T23:12:49.660599Z] 23:12:49 INFO - Found by: stack scanning [task 2017-08-22T23:12:49.661005Z] 23:12:49 INFO - 3 libxul.so + 0x298c4dc [task 2017-08-22T23:12:49.661366Z] 23:12:49 INFO - sp = 0x529f35ac pc = 0x4304a4de [task 2017-08-22T23:12:49.661719Z] 23:12:49 INFO - Found by: stack scanning [task 2017-08-22T23:12:49.662136Z] 23:12:49 INFO - 4 libxul.so + 0x2995365 [task 2017-08-22T23:12:49.662536Z] 23:12:49 INFO - sp = 0x529f35c0 pc = 0x43053367 [task 2017-08-22T23:12:49.662886Z] 23:12:49 INFO - Found by: stack scanning [task 2017-08-22T23:12:49.663311Z] 23:12:49 INFO - 5 libxul.so + 0x2995365 [task 2017-08-22T23:12:49.663704Z] 23:12:49 INFO - sp = 0x529f35ec pc = 0x43053367 [task 2017-08-22T23:12:49.664015Z] 23:12:49 INFO - Found by: stack scanning [task 2017-08-22T23:12:49.664332Z] 23:12:49 INFO - 6 libxul.so + 0x711df [task 2017-08-22T23:12:49.664577Z] 23:12:49 INFO - sp = 0x529f35f8 pc = 0x4072f1e1 [task 2017-08-22T23:12:49.667310Z] 23:12:49 INFO - Found by: stack scanning [task 2017-08-22T23:12:49.667363Z] 23:12:49 INFO - 7 libxul.so + 0x1bf04eb [task 2017-08-22T23:12:49.667441Z] 23:12:49 INFO - sp = 0x529f3600 pc = 0x422ae4ed [task 2017-08-22T23:12:49.667488Z] 23:12:49 INFO - Found by: stack scanning [task 2017-08-22T23:12:49.667550Z] 23:12:49 INFO - 8 libxul.so + 0x298c4dc [task 2017-08-22T23:12:49.667729Z] 23:12:49 INFO - sp = 0x529f360c pc = 0x4304a4de [task 2017-08-22T23:12:49.667794Z] 23:12:49 INFO - Found by: stack scanning [task 2017-08-22T23:12:49.667838Z] 23:12:49 INFO - 9 libxul.so + 0x1bf075f [task 2017-08-22T23:12:49.667885Z] 23:12:49 INFO - sp = 0x529f3630 pc = 0x422ae761 [task 2017-08-22T23:12:49.667927Z] 23:12:49 INFO - Found by: stack scanning

This might be a dupe of bug 1389805.

I will ask :gbrown to look into this when he is back next week- he is the expert on this platform.

(In reply to Ted Mielczarek [:ted.mielczarek] from comment #1) > This might be a dupe of bug 1389805. I checked several logs from dependent bugs. All had dual libxul entries, one with the 0000... debug identifier, as in bug 1389805. https://public-artifacts.taskcluster.net/WeEHuv5HRVOyMWelKNnzhQ/0/public/logs/live_backing.log [task 2017-08-16T15:50:02.644901Z] 15:50:02 INFO - Loaded modules: [task 2017-08-16T15:50:02.645308Z] 15:50:02 INFO - 0x2a000000 - 0x2a009fff xpcshell ??? (main) [task 2017-08-16T15:50:02.645710Z] 15:50:02 INFO - 0x40000000 - 0x40010fff linker ??? [task 2017-08-16T15:50:02.646105Z] 15:50:02 INFO - 0x40014000 - 0x40027fff libnss3.so ??? [task 2017-08-16T15:50:02.646611Z] 15:50:02 INFO - 0x4002d000 - 0x40182fff libnss3.so ??? (WARNING: No symbols, libnss3.so, 000000000000000000000000000000000) [task 2017-08-16T15:50:02.647064Z] 15:50:02 INFO - 0x40193000 - 0x401a4fff libmozglue.so ??? [task 2017-08-16T15:50:02.647574Z] 15:50:02 INFO - 0x401a7000 - 0x40250fff libmozglue.so ??? (WARNING: No symbols, libmozglue.so, 000000000000000000000000000000000) [task 2017-08-16T15:50:02.647993Z] 15:50:02 INFO - 0x40258000 - 0x4025cfff liblog.so ??? [task 2017-08-16T15:50:02.648449Z] 15:50:02 INFO - 0x4025d000 - 0x402a1fff libc.so ??? (WARNING: No symbols, libc.so, CB505144A14B369944610F6D1610D3010) [task 2017-08-16T15:50:02.648808Z] 15:50:02 INFO - 0x402b5000 - 0x402b7fff libstdc++.so ??? [task 2017-08-16T15:50:02.649147Z] 15:50:02 INFO - 0x402b8000 - 0x402cffff libm.so ??? [task 2017-08-16T15:50:02.649495Z] 15:50:02 INFO - 0x402d3000 - 0x4043ffff libxul.so ??? [task 2017-08-16T15:50:02.649924Z] 15:50:02 INFO - 0x406be000 - 0x445a0fff libxul.so ??? (WARNING: No symbols, libxul.so, 000000000000000000000000000000000) (There seems to be a similar issue for libnss3.so and libmozglue.so.)

:mayhemer -- Thanks for reporting and providing all these examples. I'll try to get more attention for this in 1389805.

By the way, I noticed this assertion in the logcat logs for several of those failures: https://public-artifacts.taskcluster.net/NaZ7lWWpQBqC9yvj-wPIZQ/0/public/test_info//logcat-emulator-5554.log 08-12 08:08:52.785 1115 1130 F MOZ_Assert: Assertion failure: IsIdle(oldState) || IsRead(oldState), at /home/worker/workspace/build/src/xpcom/ds/PLDHashTable.h:118