It first appeared in 14.0a1/20120324 and happens on startup. The regression range is: http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=ab2ff3b5611f&tochange=df1f94b2bdee Signature nsNotifyAddrListener::Shutdown() More Reports Search UUID 1bb17f17-1b57-4c91-b5ce-ff43b2120325 Date Processed 2012-03-25 04:00:04 Uptime 0 Last Crash 1 seconds before submission Install Age 0 seconds since version was first installed. Install Time 2012-03-25 03:59:47 Product Firefox Version 14.0a1 Build ID 20120324031100 Release Channel nightly OS Windows NT OS Version 6.1.7601 Service Pack 1 Build Architecture amd64 Build Architecture Info family 16 model 10 stepping 0 Crash Reason EXCEPTION_ACCESS_VIOLATION_READ Crash Address 0x0 Processor Notes WARNING: JSON file missing Add-ons EMCheckCompatibility False Total Virtual Memory 8796092891136 Available Virtual Memory 8795918450688 System Memory Use Percentage 21 Available Page File 30872084480 Available Physical Memory 13423325184 Frame Module Signature [Expand] Source 0 xul.dll nsNotifyAddrListener::Shutdown netwerk/system/win32/nsNotifyAddrListener.cpp:212 1 xul.dll nsNotifyAddrListener::Observe netwerk/system/win32/nsNotifyAddrListener.cpp:172 2 xul.dll nsObserverList::NotifyObservers xpcom/ds/nsObserverList.cpp:130 3 mozglue.dll je_free memory/jemalloc/jemalloc.c:6555 4 xul.dll SearchTable obj-firefox/xpcom/build/pldhash.cpp:435 5 mozglue.dll je_free memory/jemalloc/jemalloc.c:6555 6 xul.dll nsObserverService::NotifyObservers xpcom/ds/nsObserverService.cpp:182 7 xul.dll mozilla::ShutdownXPCOM xpcom/build/nsXPComInit.cpp:612 8 xul.dll ScopedXPCOMStartup::~ScopedXPCOMStartup toolkit/xre/nsAppRunner.cpp:1124 9 xul.dll XRE_main toolkit/xre/nsAppRunner.cpp:3457 More reports at: https://crash-stats.mozilla.com/report/list?signature=nsNotifyAddrListener%3A%3AShutdown%28%29

mThread is null in mThread->Shutdown() during xpcom-shutdwon-threads handling on windows. I think it is possible this is a dup of 738812

The crash data is relatively sparse, but it is not a dup of 738812. There hasn't been a crash on a build from 04-18 -> 04-22.. not sure what to correlate that to changeset wise, or maybe its just light data from the weekend.

There's only one crash in 14.0.1.

TB14 bp-f93b439f-9a17-4a23-973b-8cb542120814 with reporter email address TB15 bp-d7cfadfd-dbc9-40d7-a5f8-e9a142120805

light impact.. but mthread is null. trivial fix. https://crash-stats.mozilla.com/report/index/812b1ac2-c87e-44a6-9794-81dde2160119

mthread could be null and we still end up in the observer-shutdown path if the thread initialization failed

https://hg.mozilla.org/integration/mozilla-inbound/rev/320c91b8d7017ca5fc5830b23bf03a364402b699 Bug 739029 - null check a thread allocation in notifyaddrlistener r=bagder