1522243 - Intermittent PID 2384 | Assertion failure: parentFound, at /builds/worker/workspace/build/src/dom/serviceworkers/ServiceWorkerManagerService.cpp:186

Status: RESOLVED FIXED

(Core :: DOM: Service Workers, defect, P2)

Description

[Treeherder Bug Filer]

Filed by: rmaries [at] mozilla.com

https://treeherder.mozilla.org/logviewer.html#?job_id=223520788&repo=mozilla-inbound

https://queue.taskcluster.net/v1/task/JjBH1WFYTI-82_y5hjCAfw/runs/0/artifacts/public/logs/live_backing.log

08:08:01 INFO - TEST-START | /background-fetch/content-security-policy.https.window.html
08:08:01 INFO - PID 2384 | ++DOMWINDOW == 3 (0x1269c2400) [pid = 2390] [serial = 3] [outer = 0x126906400]
08:08:01 INFO - PID 2384 | [Child 2387, Main Thread] WARNING: NS_ENSURE_TRUE(domReturn) failed: file /builds/worker/workspace/build/src/dom/base/nsGlobalWindowOuter.cpp, line 7147
08:08:01 INFO - PID 2384 | [Child 2390, Main Thread] WARNING: '!window', file /builds/worker/workspace/build/src/dom/cache/CacheStorage.cpp, line 559
08:08:01 INFO - PID 2384 | ++DOCSHELL 0x1143da800 == 1 [pid = 2389] [id = {b0002b02-fe35-a84e-8063-54e895fe7ab1}]
08:08:01 INFO - PID 2384 | ++DOMWINDOW == 1 (0x11c207c00) [pid = 2389] [serial = 1] [outer = 0x0]
08:08:01 INFO - PID 2384 | ###!!! [Parent][RunMessage] Error: Channel closing: too late to send/recv, messages will be lost
08:08:01 INFO - PID 2384 | [Child 2388, Main Thread] WARNING: NS_ENSURE_TRUE(maybeContext) failed: file /builds/worker/workspace/build/src/xpcom/threads/nsThread.cpp, line 869
08:08:01 INFO - PID 2384 | ++DOMWINDOW == 2 (0x11c209800) [pid = 2389] [serial = 2] [outer = 0x11c207c00]
08:08:01 INFO - PID 2384 | [Child 2388, Main Thread] WARNING: '!gThread', file /builds/worker/workspace/build/src/xpcom/threads/nsTimerImpl.cpp, line 299
08:08:01 INFO - PID 2384 | ### XPCOM_MEM_BLOAT_LOG defined -- logging bloat/leaks to /var/folders/mf/zg1ht33x4fldvvc3rzp6tm1r00000x/T/tmpQVDx5F.mozrunner/runtests_leaks_1794_tab_pid2391.log
08:08:01 INFO - PID 2384 | --DOCSHELL 0x11ffd9800 == 0 [pid = 2388] [id = {1510336d-8796-e54d-a1b9-20d259458734}]
08:08:01 INFO - PID 2384 | --DOMWINDOW == 3 (0x127d06400) [pid = 2388] [serial = 1] [outer = 0x0] [url = https://web-platform.test:8443/background-fetch/abort.https.window.html]
08:08:01 INFO - PID 2384 | --DOMWINDOW == 2 (0x127d07c00) [pid = 2388] [serial = 2] [outer = 0x0] [url = about:blank]
08:08:01 INFO - PID 2384 | --DOMWINDOW == 1 (0x128805c00) [pid = 2388] [serial = 3] [outer = 0x0] [url = about:blank]
08:08:01 INFO - PID 2384 | --DOMWINDOW == 0 (0x12880c400) [pid = 2388] [serial = 4] [outer = 0x0] [url = https://web-platform.test:8443/background-fetch/abort.https.window.html]
08:08:01 INFO - PID 2384 | nsStringStats
08:08:01 INFO - PID 2384 | => mAllocCount: 9595
08:08:01 INFO - PID 2384 | => mReallocCount: 0
08:08:01 INFO - PID 2384 | => mFreeCount: 9595
08:08:01 INFO - PID 2384 | => mShareCount: 9582
08:08:01 INFO - PID 2384 | => mAdoptCount: 541
08:08:01 INFO - PID 2384 | => mAdoptFreeCount: 557
08:08:01 INFO - PID 2384 | => Process ID: 2388, Thread ID: 140735109251840
08:08:01 INFO - PID 2384 | ++DOMWINDOW == 3 (0x11c2c2000) [pid = 2389] [serial = 3] [outer = 0x11c207c00]
08:08:01 INFO - PID 2384 | [Parent 2384, Main Thread] WARNING: 'NS_FAILED(rv)', file /builds/worker/workspace/build/src/netwerk/url-classifier/UrlClassifierCommon.cpp, line 122
08:08:01 INFO - PID 2384 | ++DOMWINDOW == 4 (0x11c2c8800) [pid = 2389] [serial = 4] [outer = 0x11c207c00]
08:08:02 INFO - PID 2384 | [Child 2389, Main Thread] WARNING: '!window', file /builds/worker/workspace/build/src/dom/cache/CacheStorage.cpp, line 559
08:08:02 INFO - PID 2384 | [Child 2389, Main Thread] WARNING: '!window', file /builds/worker/workspace/build/src/dom/cache/CacheStorage.cpp, line 559
08:08:02 INFO - PID 2384 | [Child 2389, Main Thread] WARNING: '!window', file /builds/worker/workspace/build/src/dom/cache/CacheStorage.cpp, line 559
08:08:02 INFO - PID 2384 | [Parent 2384, Main Thread] WARNING: 'NS_FAILED(rv)', file /builds/worker/workspace/build/src/netwerk/url-classifier/UrlClassifierCommon.cpp, line 122
08:08:02 INFO - PID 2384 | [Parent 2384, Main Thread] WARNING: 'NS_FAILED(rv)', file /builds/worker/workspace/build/src/netwerk/url-classifier/AsyncUrlChannelClassifier.cpp, line 751
08:08:02 INFO - Closing window 8589934593
08:08:02 INFO - PID 2384 | [Child 2389, Main Thread] WARNING: '!window', file /builds/worker/workspace/build/src/dom/cache/CacheStorage.cpp, line 559
08:08:02 INFO - PID 2384 | [Child 2389, Main Thread] WARNING: A runnable was posted to a worker that is already shutting down!: file /builds/worker/workspace/build/src/dom/workers/WorkerPrivate.cpp, line 1356
08:08:02 INFO - PID 2384 | [Child 2389, Main Thread] WARNING: NS_ENSURE_TRUE(global) failed: file /builds/worker/workspace/build/src/dom/serviceworkers/ServiceWorkerRegistrationImpl.cpp, line 106
08:08:02 INFO - PID 2384 | [Child 2389, Main Thread] WARNING: A runnable was posted to a worker that is already shutting down!: file /builds/worker/workspace/build/src/dom/workers/WorkerPrivate.cpp, line 1356
08:08:02 INFO - PID 2384 | [Child 2389, Main Thread] WARNING: NS_ENSURE_TRUE(global) failed: file /builds/worker/workspace/build/src/dom/serviceworkers/ServiceWorkerRegistrationImpl.cpp, line 142
08:08:02 INFO - PID 2384 | [Child 2389, Main Thread] WARNING: nsAppShell::Exit() called redundantly: file /builds/worker/workspace/build/src/widget/cocoa/nsAppShell.mm, line 722
08:08:02 INFO - PID 2384 | [Child 2389, Main Thread] WARNING: A runnable was posted to a worker that is already shutting down!: file /builds/worker/workspace/build/src/dom/workers/WorkerPrivate.cpp, line 1356
08:08:02 INFO - PID 2384 | [Child 2389, Main Thread] WARNING: Failed to dispatch offline status change event!: file /builds/worker/workspace/build/src/dom/workers/WorkerPrivate.cpp, line 1808
08:08:02 INFO - PID 2384 | Assertion failure: parentFound, at /builds/worker/workspace/build/src/dom/serviceworkers/ServiceWorkerManagerService.cpp:186
08:08:02 WARNING - Traceback (most recent call last):
08:08:02 WARNING - File "/Users/cltbld/tasks/task_1548258803/build/tests/web-platform/tests/tools/wptrunner/wptrunner/executors/base.py", line 162, in run_test
08:08:02 WARNING - result = self.do_test(test)
08:08:02 WARNING - File "/Users/cltbld/tasks/task_1548258803/build/tests/web-platform/tests/tools/wptrunner/wptrunner/executors/executormarionette.py", line 693, in do_test
08:08:02 WARNING - assertion_count = self.protocol.asserts.get()
08:08:02 WARNING - File "/Users/cltbld/tasks/task_1548258803/build/tests/web-platform/tests/tools/wptrunner/wptrunner/executors/executormarionette.py", line 350, in get
08:08:02 WARNING - with self.marionette.using_context(self.marionette.CONTEXT_CHROME):
08:08:02 WARNING - File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/contextlib.py", line 17, in enter
08:08:02 WARNING - return self.gen.next()
08:08:02 WARNING - File "/Users/cltbld/tasks/task_1548258803/build/venv/lib/python2.7/site-packages/marionette_driver/marionette.py", line 1493, in using_context
08:08:02 WARNING - key="value")
08:08:02 WARNING - File "/Users/cltbld/tasks/task_1548258803/build/venv/lib/python2.7/site-packages/marionette_driver/decorators.py", line 26, in _
08:08:02 WARNING - return func(args, kwargs)
08:08:02 WARNING - File "/Users/cltbld/tasks/task_1548258803/build/venv/lib/python2.7/site-packages/marionette_driver/marionette.py", line 753, in _send_message
08:08:02 WARNING - raise errors.InvalidSessionIdException("Please start a session")
08:08:02 WARNING - InvalidSessionIdException: Please start a session
08:08:02 WARNING -
08:08:02 INFO - mozcrash Copy/paste: /Users/cltbld/tasks/task_1548258803/build/macosx64-minidump_stackwalk /var/folders/mf/zg1ht33x4fldvvc3rzp6tm1r00000x/T/tmpQVDx5F.mozrunner/minidumps/30760BF7-4D64-46CC-B725-6D22B498A964.dmp /Users/cltbld/tasks/task_1548258803/build/symbols
08:08:22 INFO - mozcrash Saved minidump as /Users/cltbld/tasks/task_1548258803/build/blobber_upload_dir/30760BF7-4D64-46CC-B725-6D22B498A964.dmp
08:08:22 INFO - mozcrash Saved app info as /Users/cltbld/tasks/task_1548258803/build/blobber_upload_dir/30760BF7-4D64-46CC-B725-6D22B498A964.extra
08:08:23 INFO - PROCESS-CRASH | /background-fetch/content-security-policy.https.window.html | application crashed [@ mozilla::dom::ServiceWorkerManagerService::PropagateUnregister(unsigned long long, mozilla::ipc::PrincipalInfo const&, nsTSubstring<char16_t> const&)]
08:08:23 INFO - Crash dump filename: /var/folders/mf/zg1ht33x4fldvvc3rzp6tm1r00000x/T/tmpQVDx5F.mozrunner/minidumps/30760BF7-4D64-46CC-B725-6D22B498A964.dmp
08:08:23 INFO - Operating system: Mac OS X
08:08:23 INFO - 10.10.5 14F27
08:08:23 INFO - CPU: amd64
08:08:23 INFO - family 6 model 69 stepping 1
08:08:23 INFO - 4 CPUs
08:08:23 INFO -
08:08:23 INFO - GPU: UNKNOWN
08:08:23 INFO -
08:08:23 INFO - Crash reason: EXC_BAD_ACCESS / KERN_INVALID_ADDRESS
08:08:23 INFO - Crash address: 0x0
08:08:23 INFO - Process uptime: 10 seconds
08:08:23 INFO -
08:08:23 INFO - Thread 17 (crashed)
08:08:23 INFO - 0 XUL!mozilla::dom::ServiceWorkerManagerService::PropagateUnregister(unsigned long long, mozilla::ipc::PrincipalInfo const&, nsTSubstring<char16_t> const&) [ServiceWorkerManagerService.cpp:cac13d592b66535ee7abbf05a71952f21654dc21 : 186 + 0x0]
08:08:23 INFO - rax = 0x000000010dbf3a2e rdx = 0x00007fff732af1f8
08:08:23 INFO - rcx = 0x00000001060f46b0 rbx = 0x000000010d88fe3a
08:08:23 INFO - rsi = 0x0000740000007400 rdi = 0x0000730000007403
08:08:23 INFO - rbp = 0x00000001192417e0 rsp = 0x0000000119241720
08:08:23 INFO - r8 = 0x00000001192416d0 r9 = 0x0000000119242000
08:08:23 INFO - r10 = 0x00007fff8a61b3ef r11 = 0x00007fff8a61b3c0
08:08:23 INFO - r12 = 0x0000000000000000 r13 = 0x0000000000000000
08:08:23 INFO - r14 = 0x0000000119241748 r15 = 0x00000001258fed60
08:08:23 INFO - rip = 0x000000010a141727
08:08:23 INFO - Found by: given as instruction pointer in context
08:08:23 INFO - 1 XUL!mozilla::dom::(anonymous namespace)::UnregisterServiceWorkerCallback::Run() [ServiceWorkerManagerParent.cpp:cac13d592b66535ee7abbf05a71952f21654dc21 : 100 + 0xe]
08:08:23 INFO - rbp = 0x0000000119241880 rsp = 0x00000001192417f0
08:08:23 INFO - rip = 0x000000010a140dba
08:08:23 INFO - Found by: previous frame's frame pointer
08:08:23 INFO - 2 XUL!mozilla::dom::(anonymous namespace)::CheckPrincipalWithCallbackRunnable::Run() [ServiceWorkerManagerParent.cpp:cac13d592b66535ee7abbf05a71952f21654dc21 : 139 + 0x6]
08:08:23 INFO - rbp = 0x00000001192418a0 rsp = 0x0000000119241890
08:08:23 INFO - rip = 0x000000010a15fce7
08:08:23 INFO - Found by: previous frame's frame pointer
08:08:23 INFO - 3 XUL!nsThread::ProcessNextEvent(bool, bool) [nsThread.cpp:cac13d592b66535ee7abbf05a71952f21654dc21 : 1160 + 0x6]
08:08:23 INFO - rbp = 0x0000000119241db0 rsp = 0x00000001192418b0
08:08:23 INFO - rip = 0x00000001068170cb
08:08:23 INFO - Found by: previous frame's frame pointer
08:08:23 INFO - 4 XUL!NS_ProcessNextEvent(nsIThread, bool) [nsThreadUtils.cpp:cac13d592b66535ee7abbf05a71952f21654dc21 : 468 + 0xd]
08:08:23 INFO - rbp = 0x0000000119241de0 rsp = 0x0000000119241dc0
08:08:23 INFO - rip = 0x000000010681aee8
08:08:23 INFO - Found by: previous frame's frame pointer
08:08:23 INFO - 5 XUL!mozilla::ipc::MessagePumpForNonMainThreads::Run(base::MessagePump::Delegate) [MessagePump.cpp:cac13d592b66535ee7abbf05a71952f21654dc21 : 333 + 0xd]
08:08:23 INFO - rbp = 0x0000000119241e30 rsp = 0x0000000119241df0
08:08:23 INFO - rip = 0x0000000106f128bd
08:08:23 INFO - Found by: previous frame's frame pointer
08:08:23 INFO - 6 XUL!MessageLoop::Run() [message_loop.cc:cac13d592b66535ee7abbf05a71952f21654dc21 : 308 + 0x5]
08:08:23 INFO - rbp = 0x0000000119241e60 rsp = 0x0000000119241e40
08:08:23 INFO - rip = 0x0000000106eb3655
08:08:23 INFO - Found by: previous frame's frame pointer
08:08:23 INFO - 7 XUL!nsThread::ThreadFunc(void*) [nsThread.cpp:cac13d592b66535ee7abbf05a71952f21654dc21 : 449 + 0x8]
08:08:23 INFO - rbp = 0x0000000119241eb0 rsp = 0x0000000119241e70
08:08:23 INFO - rip = 0x0000000106813b15
08:08:23 INFO - Found by: previous frame's frame pointer
08:08:23 INFO - 8 libnss3.dylib!_pt_root [ptthread.c:cac13d592b66535ee7abbf05a71952f21654dc21 : 201 + 0x3]
08:08:23 INFO - rbp = 0x0000000119241ef0 rsp = 0x0000000119241ec0
08:08:23 INFO - rip = 0x000000010656cb10
08:08:23 INFO - Found by: previous frame's frame pointer
08:08:23 INFO - 9 libsystem_pthread.dylib + 0x405a
08:08:23 INFO - rbp = 0x0000000119241f10 rsp = 0x0000000119241f00
08:08:23 INFO - rip = 0x00007fff8a61e05a
08:08:23 INFO - Found by: previous frame's frame pointer
08:08:23 INFO - 10 libsystem_pthread.dylib + 0x3fd7
08:08:23 INFO - rbp = 0x0000000119241f50 rsp = 0x0000000119241f20
08:08:23 INFO - rip = 0x00007fff8a61dfd7
08:08:23 INFO - Found by: previous frame's frame pointer
08:08:23 INFO - 11 libsystem_pthread.dylib + 0x13ed
08:08:23 INFO - rbp = 0x0000000119241f78 rsp = 0x0000000119241f60
08:08:23 INFO - rip = 0x00007fff8a61b3ed
08:08:23 INFO - Found by: previous frame's frame pointer
08:08:23 INFO - 12 libnss3.dylib + 0x16c9f0
08:08:23 INFO - rsp = 0x0000000119242030 rip = 0x000000010656c9f0
08:08:23 INFO - Found by: stack scanning
08:08:23 INFO -

Comment 1

[Narcis Beleuzu [:NarcisB]]

There are 32 failures in the last 2 days.
:overholt , could you please take a look?

Comment 2

[Intermittent Failures Robot]

24 failures in 545 pushes (0.044 failures/push) were associated with this bug yesterday.

Repository breakdown:

• mozilla-inbound: 5
• mozilla-central: 6
• autoland: 13

Platform breakdown:

• linux64: 1
• windows7-32: 5
• linux32: 1
• linux64-ccov: 1
• windows10-64: 10
• osx-10-10: 4
• linux64-qr: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-01-24&endday=2019-01-24&tree=all

Comment 3

[Andrew Overholt [:overholt]]

Maybe Eden can take a look.

Comment 4

[Cristina Coroiu [:ccoroiu]]

https://treeherder.mozilla.org/#/jobs?repo=mozilla-inbound&selectedJob=223520788&searchStr=os%2Cx%2C10.10%2Cdebug%2Cweb%2Cplatform%2Ctests%2Cwith%2Ce10s%2Ctest-macosx64%2Fdebug-web-platform-tests-e10s-16%2Cw-e10s%28wpt16%29&tochange=cac13d592b66535ee7abbf05a71952f21654dc21&fromchange=1bf3cec003abff4b27c11b357e49f72c93dd5148

Failure log: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=223520788&repo=mozilla-inbound&lineNumber=22655

Comment 5

[Cristina Coroiu [:ccoroiu]]

Done a few retriggers: https://treeherder.mozilla.org/#/jobs?repo=mozilla-inbound&searchStr=os%2Cx%2C10.10%2Cdebug%2Cweb%2Cplatform%2Ctests%2Cwith%2Ce10s%2Ctest-macosx64%2Fdebug-web-platform-tests-e10s-16%2Cw-e10s%28wpt16%29&tochange=cac13d592b66535ee7abbf05a71952f21654dc21&fromchange=1bf3cec003abff4b27c11b357e49f72c93dd5148&group_state=expanded&selectedJob=224151217

Comment 6

[Intermittent Failures Robot]

33 failures in 407 pushes (0.081 failures/push) were associated with this bug yesterday.

Repository breakdown:

• mozilla-central: 2
• try: 2
• mozilla-inbound: 9
• autoland: 20

Platform breakdown:

• windows7-32: 7
• linux32: 1
• osx-10-10: 16
• windows10-64: 6
• linux64: 1
• linux64-qr: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-01-25&endday=2019-01-25&tree=all

Comment 7

[Andreea Pavel [:apavel]]

Geoff, based on the retriggers Cristina did, looks like the assertion started from bug 1520282, however the failures below seem to be related: https://treeherder.mozilla.org/#/jobs?repo=mozilla-inbound&searchStr=os%2Cx%2C10.10%2Cdebug%2Cweb%2Cplatform%2Ctests%2Cwith%2Ce10s%2Ctest-macosx64%2Fdebug-web-platform-tests-e10s-16%2Cw-e10s%28wpt16%29&tochange=cac13d592b66535ee7abbf05a71952f21654dc21&fromchange=1bf3cec003abff4b27c11b357e49f72c93dd5148&group_state=expanded&selectedJob=223520788

Can you please take a look ?

Comment 8

[Geoff Brown [:gbrown]]

It is not possible for bug 1520282 to affect OS X tests.

From the retriggers shown by comment 7, it looks to me like this assertion failure started with bug 1521801.

Comment 9

[Andreea Pavel [:apavel]]

That's why I asked. However, the failures in comment 7 do not have the assertion line failure and I was not sure if that means they are separate issues or the same?

Nathan can you please take a look at the failures in comment 7?

Also, for those failures, bug 1471718 has been reopened.

Comment 11

[Intermittent Failures Robot]

75 failures in 2383 pushes (0.031 failures/push) were associated with this bug in the last 7 days.

This is the #7 most frequent failure this week.

** This failure happened more than 75 times this week! Resolving this bug is a very high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 1 week, the affected test(s) may be disabled. **

Repository breakdown:

• try: 5
• mozilla-central: 12
• mozilla-inbound: 20
• autoland: 38

Platform breakdown:

• windows10-64: 20
• linux32: 3
• windows7-32: 14
• linux64: 3
• linux64-ccov: 1
• linux64-qr: 5
• osx-10-10: 29

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-01-21&endday=2019-01-27&tree=all

Comment 12

[Nathan Froyd [:froydnj]]

This looks like stuff deep inside service workers, which is not my forte. asuth?

Comment 13

[Andrew Sutherland [:asuth] (he/him)]

The assertion is unsound on 1 of its 2 call-paths:

1. Safe: ServiceWorkerManagerParent::RecvPropagateUnregister synchronously calls ServiceWorkerManagerService::PropagateUnregister. The actor that we're receiving the call from must still exist and be alive.
2. Unsafe: ServiceWorkerManagerParent::RecvUnregister creates a UnregisterServiceWorkerCallback that invokes PropagateUnregister in a future turn of the evnt loop following the CheckPrincipalWithCallbackRunnable it creates bouncing to the main thread and back again. By the time it gets back, the parent actor corresponding to the process may have been destroyed.

This is a sanity-check assertion that's present in all of the propagate calls. The logic wants to make sure it doesn't redundantly propagate the information back to the process that's telling us the information, which begged the check of whether the parent is in the list. It's a nice check but only safe to do synchronously from within the IPC call itself.

Comment 14

[Intermittent Failures Robot]

23 failures in 389 pushes (0.059 failures/push) were associated with this bug yesterday.

Repository breakdown:

• try: 2
• mozilla-central: 7
• autoland: 10
• mozilla-inbound: 4

Platform breakdown:

• linux32: 2
• windows7-32: 6
• osx-10-10: 2
• linux64-qr: 2
• windows10-64: 11

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-01-28&endday=2019-01-28&tree=all

Comment 15

[Intermittent Failures Robot]

26 failures in 478 pushes (0.054 failures/push) were associated with this bug yesterday.

Repository breakdown:

• mozilla-inbound: 9
• try: 1
• autoland: 12
• mozilla-central: 4

Platform breakdown:

• osx-10-10: 5
• linux32: 1
• windows10-64: 11
• linux64-qr: 1
• windows7-32: 8

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-01-29&endday=2019-01-29&tree=all

Comment 16

[Intermittent Failures Robot]

21 failures in 517 pushes (0.041 failures/push) were associated with this bug yesterday.

** This test has failed more than 150 times in the last 21 days. It should be disabled until it can be fixed. **

Repository breakdown:

• try: 1
• autoland: 9
• mozilla-central: 3
• mozilla-inbound: 4
• mozilla-beta: 4

Platform breakdown:

• windows7-32: 2
• linux64: 1
• linux32: 1
• android-em-7-0-x86: 1
• linux64-qr: 4
• windows10-64: 3
• osx-10-10: 9

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-01-31&endday=2019-01-31&tree=all

Comment 17

[Intermittent Failures Robot]

16 failures in 481 pushes (0.033 failures/push) were associated with this bug yesterday.

Repository breakdown:

• mozilla-inbound: 2
• autoland: 10
• mozilla-central: 2
• try: 2

Platform breakdown:

• osx-10-10: 6
• linux32: 1
• windows10-64: 5
• linux64-qr: 1
• windows7-32: 2
• windows10-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-02-01&endday=2019-02-01&tree=all

Comment 18

[Intermittent Failures Robot]

111 failures in 2628 pushes (0.042 failures/push) were associated with this bug in the last 7 days.

This is the #13 most frequent failure this week.

** This failure happened more than 75 times this week! Resolving this bug is a very high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 1 week, the affected test(s) may be disabled. **

Repository breakdown:

• autoland: 49
• mozilla-central: 28
• try: 8
• mozilla-beta: 4
• mozilla-inbound: 22

Platform breakdown:

• windows10-64: 40
• linux32: 9
• osx-10-10: 26
• windows10-64-qr: 4
• android-em-7-0-x86: 1
• linux64: 1
• linux64-qr: 11
• windows7-32: 19

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-01-28&endday=2019-02-03&tree=all

Comment 19

[Cristina Coroiu [:ccoroiu]]

:asuth Do you have any updates?
In the last 7 days, there have been 88 failures.
Recent failure log:
https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=225992368&repo=mozilla-inbound&lineNumber=60162

Thank you!

Comment 20

[Intermittent Failures Robot]

18 failures in 379 pushes (0.047 failures/push) were associated with this bug yesterday.

Repository breakdown:

• mozilla-inbound: 2
• autoland: 5
• mozilla-central: 3
• mozilla-beta: 5
• try: 3

Platform breakdown:

• windows7-32: 1
• linux32: 1
• windows10-64: 5
• osx-10-10: 4
• windows10-64-qr: 3
• linux64-qr: 3
• linux64-ccov: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-02-04&endday=2019-02-04&tree=all

Comment 21

[Intermittent Failures Robot]

16 failures in 442 pushes (0.036 failures/push) were associated with this bug yesterday.

Repository breakdown:

• try: 2
• mozilla-inbound: 3
• autoland: 8
• mozilla-central: 3

Platform breakdown:

• linux64-ccov: 1
• windows10-64-qr: 1
• osx-10-10: 4
• linux32: 1
• windows10-64: 9

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-02-05&endday=2019-02-05&tree=all

Comment 22

[Intermittent Failures Robot]

37 failures in 2658 pushes (0.014 failures/push) were associated with this bug in the last 7 days.

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. **

Repository breakdown:

• try: 5
• mozilla-beta: 8
• autoland: 13
• mozilla-inbound: 5
• mozilla-central: 6

Platform breakdown:

• windows10-64: 15
• windows10-64-qr: 4
• linux64-qr: 3
• windows7-32: 1
• linux64-ccov: 2
• linux32: 3
• osx-10-10: 9

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-02-04&endday=2019-02-10&tree=all

Comment 23

[Bogdan Tara[:bogdan_tara | bogdant]]

In the last 7 days there has been 1 single failure.

Comment 24

[Intermittent Failures Robot]

7 failures in 2832 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

** This test has failed more than 150 times in the last 21 days. It should be disabled until it can be fixed. **

Repository breakdown:

• autoland: 1
• mozilla-beta: 6

Platform breakdown:

• linux64-qr: 4
• linux32: 1
• osx-10-10: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-02-11&endday=2019-02-17&tree=all

Comment 25

[Andreea Pavel [:apavel]]

No failures since February the 11th.

Comment 26

[Intermittent Failures Robot]

2 failures in 2602 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 2

Platform breakdown:

• linux64-qr: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-02-18&endday=2019-02-24&tree=all

Comment 27

[Intermittent Failures Robot]

5 failures in 2981 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 5

Platform breakdown:

• linux64-qr: 4
• osx-10-10: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-02-25&endday=2019-03-03&tree=all

Comment 28

[Intermittent Failures Robot]

4 failures in 2818 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 4

Platform breakdown:

• linux32: 2
• linux64-qr: 1
• osx-10-10: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-03-04&endday=2019-03-10&tree=all

Comment 29

[Intermittent Failures Robot]

7 failures in 2771 pushes (0.003 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-release: 6
• autoland: 1

Platform breakdown:

• linux64-qr: 2
• windows7-32: 3
• osx-10-10: 1
• windows10-64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-03-11&endday=2019-03-17&tree=all

Comment 30

[Intermittent Failures Robot]

2 failures in 2561 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1
• mozilla-release: 1

Platform breakdown:

• windows10-64-qr: 1
• linux64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-03-18&endday=2019-03-24&tree=all

Comment 31

[Intermittent Failures Robot]

3 failures in 3910 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-release: 3

Platform breakdown:

• linux64-qr: 2
• osx-10-10: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-03-25&endday=2019-03-31&tree=all

Comment 32

[Intermittent Failures Robot]

6 failures in 2843 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 3
• mozilla-release: 3

Platform breakdown:

• osx-10-10: 3
• windows7-32: 2
• linux64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-04-01&endday=2019-04-07&tree=all

Comment 33

[Intermittent Failures Robot]

8 failures in 3025 pushes (0.003 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 5
• mozilla-release: 1
• mozilla-central: 1
• try: 1

Platform breakdown:

• osx-10-10: 3
• linux64-qr: 1
• windows7-32: 3
• windows10-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-04-08&endday=2019-04-14&tree=all

Comment 34

[Intermittent Failures Robot]

14 failures in 2673 pushes (0.005 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 8
• mozilla-inbound: 1
• mozilla-central: 4
• try: 1

Platform breakdown:

• windows7-32: 5
• osx-10-10: 5
• windows10-64: 2
• linux64: 1
• windows10-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-04-15&endday=2019-04-21&tree=all

Comment 35

[Intermittent Failures Robot]

4 failures in 3031 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 1
• mozilla-inbound: 1
• autoland: 2

Platform breakdown:

• windows7-32: 1
• windows10-64: 1
• osx-10-10: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-04-22&endday=2019-04-28&tree=all

Comment 36

[Intermittent Failures Robot]

6 failures in 4131 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 5
• mozilla-central: 1

Platform breakdown:

• windows7-32: 3
• windows10-64: 2
• windows10-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-04-29&endday=2019-05-05&tree=all

Comment 37

[Intermittent Failures Robot]

2 failures in 4705 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1
• mozilla-central: 1

Platform breakdown:

• windows10-64: 1
• linux64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-05-06&endday=2019-05-12&tree=all

Comment 38

[Intermittent Failures Robot]

2 failures in 4730 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-inbound: 1
• autoland: 1

Platform breakdown:

• windows7-32: 1
• windows10-64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-05-20&endday=2019-05-26&tree=all

Comment 39

[Intermittent Failures Robot]

1 failures in 4337 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1

Platform breakdown:

• windows10-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-05-27&endday=2019-06-02&tree=all

Comment 40

[Intermittent Failures Robot]

5 failures in 5197 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 3
• try: 1
• mozilla-central: 1

Platform breakdown:

• windows7-32: 3
• macosx1010-64: 1
• windows10-64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-06-03&endday=2019-06-09&tree=all

Comment 41

[Intermittent Failures Robot]

1 failures in 4753 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform breakdown:

• windows7-32: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-06-10&endday=2019-06-16&tree=all

Comment 42

[Intermittent Failures Robot]

2 failures in 2581 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-esr68: 1
• mozilla-central: 1

Platform breakdown:

• windows10-64: 1
• windows10-64-ccov: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-06-17&endday=2019-06-23&tree=all

Comment 43

[Intermittent Failures Robot]

3 failures in 4409 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 3

Platform breakdown:

• windows10-64-ccov: 1
• windows10-64-qr: 1
• linux64-ccov: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-06-24&endday=2019-06-30&tree=all

Comment 44

[Intermittent Failures Robot]

2 failures in 3501 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1
• mozilla-release: 1

Platform breakdown:

• linux64-ccov: 1
• windows10-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-07-01&endday=2019-07-07&tree=all

Comment 45

[Intermittent Failures Robot]

2 failures in 4298 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 2

Platform breakdown:

• windows7-32: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-07-15&endday=2019-07-21&tree=all

Comment 46

[Intermittent Failures Robot]

3 failures in 4608 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 2
• mozilla-central: 1

Platform breakdown:

• windows7-32: 2
• linux64-ccov: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-07-22&endday=2019-07-28&tree=all

Comment 47

[Intermittent Failures Robot]

2 failures in 4439 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1
• mozilla-central: 1

Platform breakdown:

• windows7-32: 1
• linux64-ccov: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-07-29&endday=2019-08-04&tree=all

Comment 48

[Intermittent Failures Robot]

2 failures in 4666 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1
• try: 1

Platform breakdown:

• linux64-ccov: 1
• linux64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-08-05&endday=2019-08-11&tree=all

Comment 49

[Intermittent Failures Robot]

8 failures in 4839 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 5
• autoland: 2
• try: 1

Platform breakdown:

• windows10-64-ccov: 1
• windows7-32: 1
• macosx1014-64: 2
• linux64: 4

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-08-12&endday=2019-08-18&tree=all

Comment 50

[Intermittent Failures Robot]

8 failures in 5073 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 5
• mozilla-inbound: 1
• autoland: 2

Platform breakdown:

• linux64: 2
• linux64-ccov: 2
• macosx1014-64: 2
• windows7-32: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-08-19&endday=2019-08-25&tree=all

Comment 51

[Intermittent Failures Robot]

9 failures in 5047 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1
• mozilla-central: 6
• try: 2

Platform breakdown:

• macosx1014-64: 1
• linux64-ccov: 4
• linux64-qr: 4

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-08-26&endday=2019-09-01&tree=all

Comment 52

[Intermittent Failures Robot]

9 failures in 4408 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 6
• try: 1
• autoland: 1
• mozilla-inbound: 1

Platform breakdown:

• windows10-64-qr: 1
• linux64-qr: 3
• linux64-ccov: 2
• windows7-32: 1
• windows10-64-ccov: 1
• macosx1014-64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-09-02&endday=2019-09-08&tree=all

Comment 53

[Intermittent Failures Robot]

9 failures in 4637 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 2
• mozilla-central: 3
• try: 2
• mozilla-beta: 2

Platform breakdown:

• windows7-32: 2
• linux64-ccov: 2
• linux64-qr: 2
• windows10-64-qr: 2
• macosx1014-64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-09-09&endday=2019-09-15&tree=all

Comment 54

[Intermittent Failures Robot]

8 failures in 4350 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 3
• try: 1
• autoland: 2
• mozilla-beta: 2

Platform breakdown:

• linux64-qr: 5
• macosx1014-64: 1
• linux64-ccov: 1
• windows10-64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-09-16&endday=2019-09-22&tree=all

Comment 55

[Intermittent Failures Robot]

12 failures in 4530 pushes (0.003 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 3
• try: 2
• mozilla-central: 5
• autoland: 2

Platform breakdown:

• linux64-qr: 6
• linux64-ccov: 2
• windows10-64: 2
• windows10-64-qr: 1
• linux64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-09-23&endday=2019-09-29&tree=all

Comment 56

[Intermittent Failures Robot]

10 failures in 4292 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 2
• mozilla-central: 6
• autoland: 2

Platform breakdown:

• linux64-qr: 6
• windows7-32: 1
• linux64-ccov: 1
• windows10-64: 1
• macosx1014-64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-09-30&endday=2019-10-06&tree=all

Comment 57

[Intermittent Failures Robot]

9 failures in 3801 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 3
• mozilla-beta: 2
• autoland: 3
• mozilla-inbound: 1

Platform breakdown:

• windows7-32: 1
• linux64-qr: 4
• linux64: 1
• macosx1014-64: 2
• windows10-64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-10-07&endday=2019-10-13&tree=all

Comment 58

[Intermittent Failures Robot]

3 failures in 3964 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-release: 1
• autoland: 1
• try: 1

Platform breakdown:

• linux64-qr: 2
• macosx1014-64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-10-14&endday=2019-10-20&tree=all

Comment 59

[Intermittent Failures Robot]

4 failures in 4314 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 2
• mozilla-release: 2

Platform breakdown:

• macosx1014-64: 1
• linux64-qr: 2
• windows10-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-10-28&endday=2019-11-03&tree=all

Comment 60

[Intermittent Failures Robot]

1 failures in 4850 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 1

Platform breakdown:

• windows7-32: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-11-04&endday=2019-11-10&tree=all

Comment 61

[Intermittent Failures Robot]

2 failures in 5444 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 1
• try: 1

Platform breakdown:

• windows10-64: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-11-18&endday=2019-11-24&tree=all

Comment 62

[Intermittent Failures Robot]

1 failures in 4331 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-release: 1

Platform breakdown:

• windows10-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-11-25&endday=2019-12-01&tree=all

Comment 63

[Intermittent Failures Robot]

2 failures in 5144 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 2

Platform breakdown:

• linux64-qr: 1
• macosx1014-64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-12-02&endday=2019-12-08&tree=all

Comment 64

[Intermittent Failures Robot]

3 failures in 4867 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 2
• try: 1

Platform breakdown:

• macosx1014-64: 3

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-12-09&endday=2019-12-15&tree=all

Comment 65

[Intermittent Failures Robot]

3 failures in 4582 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 3

Platform breakdown:

• windows10-64-qr: 1
• macosx1014-64: 1
• windows10-64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-12-16&endday=2019-12-22&tree=all

Comment 66

[Intermittent Failures Robot]

2 failures in 1365 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 1
• mozilla-beta: 1

Platform breakdown:

• macosx1014-64: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2019-12-23&endday=2019-12-29&tree=all

Comment 67

[Jens Stutte [:jstutte]]

(In reply to Andrew Sutherland [:asuth] (he/him) from comment #13)

The assertion is unsound on 1 of its 2 call-paths:

1. Safe: ServiceWorkerManagerParent::RecvPropagateUnregister synchronously calls ServiceWorkerManagerService::PropagateUnregister. The actor that we're receiving the call from must still exist and be alive.
2. Unsafe: ServiceWorkerManagerParent::RecvUnregister creates a UnregisterServiceWorkerCallback that invokes PropagateUnregister in a future turn of the evnt loop following the CheckPrincipalWithCallbackRunnable it creates bouncing to the main thread and back again. By the time it gets back, the parent actor corresponding to the process may have been destroyed.

This is a sanity-check assertion that's present in all of the propagate calls. The logic wants to make sure it doesn't redundantly propagate the information back to the process that's telling us the information, which begged the check of whether the parent is in the list. It's a nice check but only safe to do synchronously from within the IPC call itself.

So should we remove the check and can safely ignore this case? Or should we always verify, if there is a parent at the beginning before propagating anything and in case just do nothing and return (to better cover the 2. call-path)?

Comment 68

[Andrew Sutherland [:asuth] (he/him)]

This has been mooted by parent-intercept being enabled, because we no longer use these actors, but we should still potentially fix this.

So should we remove the check and can safely ignore this case? Or should we always verify, if there is a parent at the beginning before propagating anything and in case just do nothing and return (to better cover the 2. call-path)?

Yes, we can remove the assertion, it was unsound.

Comment 69

[Intermittent Failures Robot]

3 failures in 4690 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-release: 1
• mozilla-central: 1
• autoland: 1

Platform breakdown:

• macosx1014-64: 1
• linux1804-64: 1
• linux1804-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2020-02-10&endday=2020-02-16&tree=all

Comment 70

[Intermittent Failures Robot]

1 failures in 5483 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1

Platform breakdown:

• linux1804-64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2020-03-02&endday=2020-03-08&tree=all

Comment 71

[Subhamoy [:ssengupta][he/him]]

Attachment: Bug 1522243 - Use of debug-only flag 'parentFound' and related assertion removed from methods in ServiceWorkerManagerService.cpp r=asuth

Comment 72

[Intermittent Failures Robot]

1 failures in 5336 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform breakdown:

• linux1804-64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1522243&startday=2020-03-09&endday=2020-03-15&tree=all

Comment 73

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/cf5a9e5612b5
Use of debug-only flag 'parentFound' and related assertion removed from methods in ServiceWorkerManagerService.cpp r=dom-workers-and-storage-reviewers,perry

Comment 74

[Noemi Erli[:noemi_erli]]

https://hg.mozilla.org/mozilla-central/rev/cf5a9e5612b5