1426712 - shutdownhang signature processor is broken

Status: RESOLVED INVALID

(Socorro :: Backend, task)

Description

[Andrew McCreight [:mccr8]]

These shutdown hang reports are being reported as [@ IPCError-browser | ShutDownKill] now.

I still see at least one instance of a shutdownhang ( bp-2c4ceef6-6ee3-4995-bb35-54aea0171220 ) but mostly they are not. Trevor Skywalker seems to have noticed this first on 12-8 in bug 1424451.

Comment 1

[Andrew McCreight [:mccr8]]

It is possible that I'm completely confused about this and shutdownhang was not the top crash.

Comment 2

[Andrew McCreight [:mccr8]]

Hmm never mind. I went back and looked at older reports, and I guess this was always the signature. Sorry for the confusion.

Comment 3

[Trevor Skywalker]

I don't think the processor for shutdownhang signature is broken. There are still many signatures containing "shutdownhang". 

https://crash-stats.mozilla.com/search/?signature=shutdownhang&product=Firefox&date=%3E%3D2017-12-15T23%3A12%3A47.000Z&date=%3C2017-12-22T23%3A12%3A47.000Z&_sort=-date&_facets=signature&_columns=date&_columns=signature&_columns=product&_columns=version&_columns=build_id&_columns=platform#facet-signature	

Shows 50 signatures containing the term "shutdownhang" accounting for 186,115 Crash Reports over the past 7 days.

---

Shutdownhang crashes are still top crashers though. 

Do they have a [meta] bug to help with organization? 
(Should they have a [meta] bug?)

Looking at Top Crashers for Firefox 57.0.2
Top 300 Crashing Signatures. 7 days ago

https://crash-stats.mozilla.com/topcrashers/?product=Firefox&version=57.0.2&_facets_size=300

Find (Ctrl+F) "shutdownhang" shows 112 matches out of 300 results. So about a third of all top crash signatures are related to "shutdownhang". 

Out of the top 30 there are 14 with "shutdownhang" (or about half).

3 	2.48% 	-0.07% 	shutdownhang | mozilla::layers::CompositorThreadHolder::Shutdown
application
	4029 	4029 	0 	0 	3794 	0 	2016-11-10
	
5 	1.62% 	-0.12% 	shutdownhang | mozilla::SpinEventLoopUntil<T> | mozilla::net::nsHttpConnectionMgr::Shutdown
application
	2626 	2626 	0 	0 	2441 	0 	2017-10-25

8 	1.4% 	-0.02% 	shutdownhang | nsThread::Shutdown | nsThreadManager::Shutdown
yellow flag application
	2264 	2264 	0 	0 	2277 	0 	2017-09-27

9 	1.31% 	0.08% 	shutdownhang | mozilla::dom::quota::QuotaManager::ShutdownObserver::Observe
application
	2128 	2128 	0 	0 	1910 	0 	2016-04-14 

11 	1.04% 	-0.02% 	shutdownhang | NtQueryAttributesFile
application
	1682 	1682 	0 	0 	1722 	0 	2015-01-21 

13 	0.9% 	-0.14% 	shutdownhang | `anonymous namespace''::ParentImpl::ShutdownBackgroundThread
application
	1463 	1463 	0 	0 	1432 	0 	2017-09-28

15 	0.84% 	-0.08% 	shutdownhang | mozilla::dom::workers::RuntimeService::Cleanup
application
	1363 	1363 	0 	0 	1296 	0 	2015-10-31

16 5 	0.81% 	-0.11% 	shutdownhang | nsAppShell::ProcessNextNativeEvent
application
	1318 	1318 	0 	0 	1405 	0 	2015-10-20

19 	0.73% 	0.03% 	shutdownhang | PR_MD_WAIT_CV | PR_Wait | mozilla::ReentrantMonitor::Wait | mozilla::layers::SynchronousTask::Wait
application
	1191 	1191 	0 	0 	1200 	0 	2016-11-23

22 5 	0.61% 	-0.09% 	shutdownhang | mozilla::SpinEventLoopUntil<T> | nsThread::Shutdown | nsThreadManager::Shutdown
yellow flag application
	990 	990 	0 	0 	916 	0 	2017-10-25 

24 8 	0.54% 	-0.06% 	shutdownhang | NtUserMsgWaitForMultipleObjectsEx | CCliModalLoop::BlockFn
application
	882 	882 	0 	0 	842 	0 	2017-05-15

25 	0.53% 	0.14% 	shutdownhang | CCliModalLoop::BlockFn
application
	863 	863 	0 	0 	817 	0 	2016-08-17

28 6 	0.48% 	-0.03% 	shutdownhang | mozilla::SpinEventLoopUntil<T> | `anonymous namespace''::ParentImpl::ShutdownBackgroundThread
application
	783 	783 	0 	0 	777 	0 	2017-10-25 

29 8 	0.48% 	-0.06% 	shutdownhang | nsThreadManager::SpinEventLoopUntil
application
	780 	780 	0 	0 	798 	0 	2017-09-27 

31 	0.47% 	0.05% 	shutdownhang | MsgWaitForMultipleObjectsEx | CCliModalLoop::BlockFn
application
	757 	757 	0 	0 	737 	0 	2016-08-17 

32 8 	0.45% 	-0.04% 	shutdownhang | mozilla::SyncRunnable::DispatchToThread
application
	725 	725 	0 	0 	711 	0 	2017-07-29