https://tbpl.mozilla.org/php/getParsedLog.php?id=22268948&tree=Mozilla-Inbound Rev5 MacOSX Mountain Lion 10.8 mozilla-inbound debug test mochitest-1 on 2013-04-25 21:27:35 PDT for push 648b0cd18883 slave: talos-mtnlion-r5-021 21:51:18 INFO - 203313 INFO TEST-END | /tests/content/media/webspeech/recognition/test/test_call_start_from_end_handler.html | finished in 2276ms 21:51:18 INFO - [Parent 888] ###!!! ABORT: You can't dereference a NULL nsCOMPtr with operator->().: 'mRawPtr != 0', file ../../../dist/include/nsCOMPtr.h, line 801 21:51:18 INFO - mozilla::dom::ScriptProcessorNodeEngine::SendBuffersToMainThread(mozilla::AudioNodeStream*)::Command::Run() 21:51:18 INFO - nsThread::ProcessNextEvent(bool, bool*) [xpcom/threads/nsThread.cpp:627] 21:51:18 INFO - NS_ProcessPendingEvents(nsIThread*, unsigned int) [obj-firefox/xpcom/build/nsThreadUtils.cpp:188] 21:51:18 INFO - nsBaseAppShell::NativeEventCallback() [widget/xpwidgets/nsBaseAppShell.cpp:98] 21:51:18 INFO - nsAppShell::ProcessGeckoEvents(void*) [widget/cocoa/nsAppShell.mm:388] 21:51:18 INFO - CoreFoundation + 0x12841 21:51:18 INFO - CoreFoundation + 0x12165 21:51:18 INFO - CoreFoundation + 0x354e5 21:51:18 INFO - CoreFoundation + 0x34dd2 21:51:18 INFO - HIToolbox + 0x5f774 21:51:18 INFO - HIToolbox + 0x5f454 21:51:18 INFO - HIToolbox + 0x5f3a3 21:51:18 INFO - AppKit + 0x156fa3 21:51:18 INFO - -AppKit + 0x156862 21:51:18 INFO - -[GeckoNSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] [widget/cocoa/nsAppShell.mm:164] 21:51:18 INFO - nsAppShell::ProcessNextNativeEvent(bool) [widget/cocoa/nsAppShell.mm:667] 21:51:18 INFO - nsBaseAppShell::OnProcessNextEvent(nsIThreadInternal*, bool, unsigned int) [widget/xpwidgets/nsBaseAppShell.cpp:139] 21:51:18 INFO - _ZThn8_N10nsAppShell18OnProcessNextEventEP17nsIThreadInternalbj [widget/cocoa/nsAppShell.mm:831] 21:51:18 INFO - nsThread::ProcessNextEvent(bool, bool*) [xpcom/threads/nsThread.cpp:602] 21:51:18 INFO - NS_ProcessPendingEvents(nsIThread*, unsigned int) [obj-firefox/xpcom/build/nsThreadUtils.cpp:188] 21:51:18 INFO - nsBaseAppShell::NativeEventCallback() [widget/xpwidgets/nsBaseAppShell.cpp:98] 21:51:18 INFO - nsAppShell::ProcessGeckoEvents(void*) [widget/cocoa/nsAppShell.mm:388] 21:51:18 INFO - CoreFoundation + 0x12841 21:51:18 INFO - CoreFoundation + 0x12165 21:51:18 INFO - CoreFoundation + 0x354e5 21:51:18 INFO - CoreFoundation + 0x34dd2 21:51:18 INFO - HIToolbox + 0x5f774 21:51:18 INFO - HIToolbox + 0x5f454 21:51:18 INFO - HIToolbox + 0x5f3a3 21:51:18 INFO - AppKit + 0x156fa3 21:51:18 INFO - -AppKit + 0x156862 21:51:18 INFO - -[GeckoNSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] [widget/cocoa/nsAppShell.mm:164] 21:51:18 INFO - -AppKit + 0x14dc03 21:51:18 INFO - nsAppShell::Run() [widget/cocoa/nsAppShell.mm:741] 21:51:18 INFO - nsAppStartup::Run() [toolkit/components/startup/nsAppStartup.cpp:289] 21:51:18 INFO - XREMain::XRE_mainRun() [toolkit/xre/nsAppRunner.cpp:3878] 21:51:18 INFO - XREMain::XRE_main(int, char**, nsXREAppData const*) [toolkit/xre/nsAppRunner.cpp:3945] 21:51:18 INFO - XRE_main [toolkit/xre/nsAppRunner.cpp:4146] 21:51:18 INFO - main [browser/app/nsBrowserApp.cpp:271] 21:51:18 INFO - [Parent 888] ###!!! ABORT: You can't dereference a NULL nsCOMPtr with operator->().: 'mRawPtr != 0', file ../../../dist/include/nsCOMPtr.h, line 801 21:51:21 WARNING - TEST-UNEXPECTED-FAIL | /tests/content/media/webspeech/recognition/test/test_call_start_from_end_handler.html | Exited with code 1 during test run 21:51:21 INFO - INFO | automation.py | Application ran for: 0:22:13.728296 21:51:21 INFO - INFO | zombiecheck | Reading PID log: /var/folders/jd/xd6ldtt56nlfkbk3n8fl9sb400000w/T/tmpGgaF5tpidlog 21:51:33 WARNING - PROCESS-CRASH | /tests/content/media/webspeech/recognition/test/test_call_start_from_end_handler.html | application crashed [@ mozalloc_abort(char const*)] 21:51:33 INFO - Crash dump filename: /var/folders/jd/xd6ldtt56nlfkbk3n8fl9sb400000w/T/tmpWJ90NB/minidumps/D76A8D4C-26F3-48AE-A3F8-1CEFC947CE76.dmp 21:51:33 INFO - Operating system: Mac OS X 21:51:33 INFO - 10.8.0 12A269 21:51:33 INFO - CPU: amd64 21:51:33 INFO - family 6 model 42 stepping 7 21:51:33 INFO - 8 CPUs 21:51:33 INFO - Crash reason: EXC_BAD_ACCESS / KERN_INVALID_ADDRESS 21:51:33 INFO - Crash address: 0x0 21:51:33 INFO - Thread 0 (crashed) 21:51:33 INFO - 0 libmozalloc.dylib!mozalloc_abort(char const*) [mozalloc_abort.cpp:648b0cd18883 : 30 + 0x0] 21:51:33 INFO - rbx = 0x00007fff777f6c68 r12 = 0x0000000103698100 21:51:33 INFO - r13 = 0x00000001036cbe50 r14 = 0x00007fff5fbfb6b0 21:51:33 INFO - r15 = 0x00007fff777f6c68 rip = 0x00000001000aaaa4 21:51:33 INFO - rsp = 0x00007fff5fbfb660 rbp = 0x00007fff5fbfb670 21:51:33 INFO - Found by: given as instruction pointer in context 21:51:33 INFO - 1 XUL!NS_DebugBreak [nsDebugImpl.cpp:648b0cd18883 : 387 + 0x7] 21:51:33 INFO - rip = 0x0000000102aeccf2 rsp = 0x00007fff5fbfb690 21:51:33 INFO - Found by: stack scanning 21:51:33 INFO - 2 XUL!RDFServiceImpl::GetAnonymousResource(nsIRDFResource**)::gChars + 0x6cb 21:51:33 INFO - rip = 0x00000001037f9a8c rsp = 0x00007fff5fbfb698 21:51:33 INFO - Found by: stack scanning

I guess I'll need to rip out the Command class into mozilla::dom to see if I can get line information out of NS_ASSERTION backtraces.

(In reply to :Ehsan Akhgari (needinfo? me!) from comment #2) > I guess I'll need to rip out the Command class into mozilla::dom to see if I > can get line information out of NS_ASSERTION backtraces. https://hg.mozilla.org/integration/mozilla-inbound/rev/7c244b521e54

This is a dupe of bug 866108. In debug builds, we abort before trying to dereference the null pointer.

I backed out the investigation patch that I landed here: https://hg.mozilla.org/integration/mozilla-inbound/rev/065b1e02a5b1

Mass moving Web Audio bugs to the Web Audio component. Filter on duckityduck.