Filed by: ncsoregi [at] mozilla.com https://treeherder.mozilla.org/logviewer.html#?job_id=159254599&repo=autoland https://queue.taskcluster.net/v1/task/BgQInRiHR-maR_hvmnxFzQ/runs/0/artifacts/public/logs/live_backing.log [task 2018-01-30T05:01:17.817Z] 05:01:17 INFO - 14:06.74 --33820-- WARNING: Serious error when reading debug info 37649 [task 2018-01-30T05:01:17.817Z] 05:01:17 INFO - 14:06.74 --33820-- When reading debug info from /dev/shm/org.chromium.uDu8Xb (deleted): 37650 [task 2018-01-30T05:01:17.817Z] 05:01:17 INFO - 14:06.74 --33820-- failed to stat64/stat this file 37651 [task 2018-01-30T05:01:29.967Z] 05:01:29 INFO - 14:18.89 --33820-- memcheck GC: 74975 nodes, 11157 survivors (14.9%) 37652 [task 2018-01-30T05:02:34.800Z] 05:02:34 INFO - 15:23.73 ==33820== Thread 82 Shutdow~minator: 37653 [task 2018-01-30T05:02:34.801Z] 05:02:34 INFO - 15:23.73 TEST-UNEXPECTED-FAIL | valgrind-test | Invalid write of size 4 at MOZ_CrashOOL / mozilla::dom::workers::RuntimeService::CrashIfHanging / mozilla:: / _pt_root 37654 [task 2018-01-30T05:02:34.802Z] 05:02:34 INFO - 15:23.73 ==33820== Invalid write of size 4 37655 [task 2018-01-30T05:02:34.802Z] 05:02:34 INFO - 15:23.73 ==33820== at 0x405875: MOZ_CrashOOL (Assertions.cpp:33) 37656 [task 2018-01-30T05:02:34.802Z] 05:02:34 INFO - 15:23.73 ==33820== by 0x100CCAE4: mozilla::dom::workers::RuntimeService::CrashIfHanging() (RuntimeService.cpp:2187) 37657 [task 2018-01-30T05:02:34.802Z] 05:02:34 INFO - 15:23.73 ==33820== by 0x114F3ED4: mozilla::(anonymous namespace)::RunWatchdog(void*) (nsTerminator.cpp:162) 37658 [task 2018-01-30T05:02:34.802Z] 05:02:34 INFO - 15:23.73 ==33820== by 0x642CB80: _pt_root (ptthread.c:201) 37659 [task 2018-01-30T05:02:34.802Z] 05:02:34 INFO - 15:23.73 ==33820== by 0x4E3AB4F: start_thread (pthread_create.c:304) 37660 [task 2018-01-30T05:02:34.802Z] 05:02:34 INFO - 15:23.73 ==33820== by 0x5D51FBC: clone (clone.S:112) 37661 [task 2018-01-30T05:02:34.802Z] 05:02:34 INFO - 15:23.73 ==33820== Address 0x0 is not stack'd, malloc'd or (recently) free'd 37662 [task 2018-01-30T05:02:34.802Z] 05:02:34 INFO - 15:23.73 ==33820== 37663 [task 2018-01-30T05:02:34.803Z] 05:02:34 INFO - 15:23.73 { 37664 [task 2018-01-30T05:02:34.803Z] 05:02:34 INFO - 15:23.73 <insert_a_suppression_name_here> 37665 [task 2018-01-30T05:02:34.803Z] 05:02:34 INFO - 15:23.73 Memcheck:Addr4 37666 [task 2018-01-30T05:02:34.803Z] 05:02:34 INFO - 15:23.73 fun:MOZ_CrashOOL 37667 [task 2018-01-30T05:02:34.803Z] 05:02:34 INFO - 15:23.73 fun:_ZN7mozilla3dom7workers14RuntimeService14CrashIfHangingEv 37668 [task 2018-01-30T05:02:34.803Z] 05:02:34 INFO - 15:23.73 fun:_ZN7mozilla12_GLOBAL__N_111RunWatchdogEPv 37669 [task 2018-01-30T05:02:34.803Z] 05:02:34 INFO - 15:23.73 fun:_pt_root 37670 [task 2018-01-30T05:02:34.803Z] 05:02:34 INFO - 15:23.73 fun:start_thread 37671 [task 2018-01-30T05:02:34.803Z] 05:02:34 INFO - 15:23.73 fun:clone 37672 [task 2018-01-30T05:02:34.803Z] 05:02:34 INFO - 15:23.73 } 37673 [task 2018-01-30T05:02:34.819Z] 05:02:34 INFO - 15:23.74 ==33820== 37674 [task 2018-01-30T05:02:34.819Z] 05:02:34 INFO - 15:23.74 ==33820== Process terminating with default action of signal 11 (SIGSEGV)

Over the last 7 days there are 32 failures present on this bug. All of the happen on Linux x64 Here is the most recent log example: https://treeherder.mozilla.org/logviewer.html#?repo=autoland&job_id=160497258&lineNumber=37441 Here is a relevat snippet from the log example: [task 2018-02-05T23:15:52.597Z] 23:15:52 INFO - 15:51.37 ==31393== Thread 77 Shutdow~minator: [task 2018-02-05T23:15:52.597Z] 23:15:52 INFO - 15:51.37 TEST-UNEXPECTED-FAIL | valgrind-test | Invalid write of size 4 at MOZ_CrashOOL / mozilla::dom::workerinternals::RuntimeService::CrashIfHanging / mozilla:: / _pt_root [task 2018-02-05T23:15:52.597Z] 23:15:52 INFO - 15:51.37 ==31393== Invalid write of size 4 [task 2018-02-05T23:15:52.597Z] 23:15:52 INFO - 15:51.37 ==31393== at 0x405875: MOZ_CrashOOL (Assertions.cpp:33) [task 2018-02-05T23:15:52.597Z] 23:15:52 INFO - 15:51.37 ==31393== by 0x1007DA84: mozilla::dom::workerinternals::RuntimeService::CrashIfHanging() (RuntimeService.cpp:2014) [task 2018-02-05T23:15:52.597Z] 23:15:52 INFO - 15:51.37 ==31393== by 0x114B3CF4: mozilla::(anonymous namespace)::RunWatchdog(void*) (nsTerminator.cpp:162) [task 2018-02-05T23:15:52.598Z] 23:15:52 INFO - 15:51.37 ==31393== by 0x642CB80: _pt_root (ptthread.c:201) [task 2018-02-05T23:15:52.598Z] 23:15:52 INFO - 15:51.37 ==31393== by 0x4E3AB4F: start_thread (pthread_create.c:304) [task 2018-02-05T23:15:52.598Z] 23:15:52 INFO - 15:51.37 ==31393== by 0x5D51FBC: clone (clone.S:112) [task 2018-02-05T23:15:52.598Z] 23:15:52 INFO - 15:51.37 ==31393== Address 0x0 is not stack'd, malloc'd or (recently) free'd

:catalinb can you take a look at this?

Is this the same issue as bug 1435343?

It seems a duplicate of bug 1422036. The number of reports is also dropping.

Recent Valgrind bustage on inbound: https://treeherder.mozilla.org/logviewer.html#?job_id=160771485&repo=mozilla-inbound&lineNumber=37473

Note that the signature is changed. Now it is: mozilla::dom::workerinternals::RuntimeService::CrashIfHanging

In general it should be a dup of 1435343. Can we have 2 signatures for the same bug? :mdaly can you take a look?

Giving to :baku as he is working on a similar issue

There is actually nothing to do here. This is a dup of bug 1435343. Same signature. There are several bugs filed as dependences of bug 1435343.

Resolving this as duplicate then.