https://tbpl.mozilla.org/php/getParsedLog.php?id=17282011&tree=Mozilla-Inbound Rev3 Fedora 12x64 mozilla-inbound opt test mochitest-1 on 2012-11-22 09:09:42 PST for push 83e6a9456aaf slave: talos-r3-fed64-045 TEST-UNEXPECTED-FAIL | /tests/content/media/test/test_playback_rate.html | Exited with code 11 during test run PROCESS-CRASH | /tests/content/media/test/test_playback_rate.html | application crashed (minidump found) Thread 33 (crashed) 0 libsoundtouch.so!soundtouch::FIRFilter::evaluateFilterMono(float*, float const*, unsigned int) const [FIRFilter.cpp : 154 + 0x0] rbx = 0x0000000000000001 r12 = 0x0000000000000000 r13 = 0x0000000000000000 r14 = 0x0000000000003f80 r15 = 0x0000000000000020 rip = 0x00007f6629e9685c rsp = 0x00007f6617b8dca8 rbp = 0x00007f6617b8dcd0 Found by: given as instruction pointer in context 1 libsoundtouch.so!soundtouch::RateTransposer::downsample(float const*, unsigned int) [RateTransposer.cpp : 261 + 0x31] rbx = 0x00007f65f6ed9690 r12 = 0x00007f65f6ed96b0 r13 = 0x0000000000001000 r14 = 0x00007f65f6ed96d8 r15 = 0x0000000000001000 rip = 0x00007f6629e97310 rsp = 0x00007f6617b8dce0 rbp = 0x00007f6617b8dd20 Found by: call frame info 2 libsoundtouch.so!soundtouch::SoundTouch::putSamples(float const*, unsigned int) [SoundTouch.cpp : 324 + 0x9] rbx = 0x00007f65e83d2780 r12 = 0x0000000000000000 r13 = 0x0000000000000001 r14 = 0x0000000000001589 r15 = 0x00007f65f5adf000 rip = 0x00007f6629e97720 rsp = 0x00007f6617b8dd30 rbp = 0x00007f6617b8dd40 Found by: call frame info 3 libxul.so!mozilla::nsBufferedAudioStream::GetTimeStretched(void*, long) [AudioStream.cpp : 989 + 0x7] rbx = 0x00007f65e8032120 r12 = 0x0000000000000000 r13 = 0x0000000000000001 r14 = 0x0000000000001589 r15 = 0x00007f65f5adf000 rip = 0x00007f662806b2e1 rsp = 0x00007f6617b8dd50 rbp = 0x00007f6617b8ddd0 Found by: call frame info 4 libxul.so!mozilla::nsBufferedAudioStream::DataCallback(void*, long) [AudioStream.cpp : 1014 + 0xd] rbx = 0x00007f65e8032120 r12 = 0x0000000000000000 r13 = 0x00007f65f5adf000 r14 = 0x0000000000001589 r15 = 0x0000000000001589 rip = 0x00007f662806b3be rsp = 0x00007f6617b8dde0 rbp = 0x00007f6617b8de20 Found by: call frame info 5 libxul.so!cubeb_run_thread [cubeb_alsa.c : 301 + 0xf] rbx = 0x00007f65e861da80 r12 = 0x00007f6604b04210 r13 = 0x0000000000001589 r14 = 0x00007f65e861da88 r15 = 0x00007f65f5adf000 rip = 0x00007f66287bb96b rsp = 0x00007f6617b8de30 rbp = 0x00007f6617b8dec0 Found by: call frame info

In windows XP too not start latest build SeaMonkey - if i use soundtouch.dll from software Reaper, not load XPCOM and if i use xpcom.dll from old build SeaMonkey too :-(

Build 20121124003007 in windows XP now started O.K.

I managed to reproduce this locally on Linux. It has the same root cause as Bug 814708: somehow the objects are either not constructed or are deleted when we attempt to use them. But then it gets interesting. In gdb, if I try to print the values from the AudioStream scope, everything seems fine, but if I go down the callstack, I get 0x5a5a5a5a pointers (freed memory) and bogus values. [1] is an examples gdb session that shows the problem. [1]: http://pastebin.mozilla.org/1965848

This is likely to have been fixed by the fix for bug 814708. Closing.