test_MediaSource has been passing reliably on Android 2.3 and Android 2.3 Armv6, when running the Android emulator on an ix slave. We are now migrating some Android 2.3 Armv6 test jobs to aws slaves and find that this test frequently crashes: https://tbpl.mozilla.org/php/getParsedLog.php?id=42230080&tree=Ash&full=1 09:56:59 INFO - 1140 INFO TEST-START | /tests/content/media/mediasource/test/test_MediaSource.html 09:56:59 INFO - INFO | automation.py | Application ran for: 0:28:32.647871 09:56:59 INFO - INFO | zombiecheck | Reading PID log: /tmp/tmp0WDYN0pidlog 09:56:59 INFO - /data/anr/traces.txt not found 09:56:59 INFO - mozcrash INFO | Downloading symbols from: https://ftp-ssl.mozilla.org/pub/mozilla.org/mobile/tinderbox-builds/ash-android-armv6/1403382102/fennec-33.0a1.en-US.android-arm-armv6.crashreporter-symbols.zip 09:56:59 WARNING - PROCESS-CRASH | /tests/content/media/mediasource/test/test_MediaSource.html | application crashed [@ mozilla::WebMBufferedState::Release()] 09:56:59 INFO - Crash dump filename: /tmp/tmpGu50Fy/38eb1ca1-97ec-f375-0eb5a075-1620ed53.dmp 09:56:59 INFO - Operating system: Android 09:56:59 INFO - 0.0.0 Linux 2.6.29-ge3d684d #1 Mon Dec 16 22:26:51 UTC 2013 armv7l generic/sdk/generic:2.3.7/GINGERBREAD/eng.ubuntu.20140123.014351:eng/test-keys 09:56:59 INFO - CPU: arm 09:56:59 INFO - 0 CPUs 09:56:59 INFO - 09:56:59 INFO - Crash reason: SIGSEGV 09:56:59 INFO - Crash address: 0x0 09:56:59 INFO - 09:56:59 INFO - Thread 53 (crashed) 09:56:59 INFO - 0 libxul.so!mozilla::WebMBufferedState::Release() [WebMBufferedParser.h:3df9a3371d0b : 187 + 0x10] 09:56:59 INFO - r4 = 0x585e65a0 r5 = 0x46f3c100 r6 = 0x560c0e0c r7 = 0x5671fb14 09:56:59 INFO - r8 = 0x59720dd8 r9 = 0x001e985a r10 = 0x00000000 fp = 0x00000000 09:56:59 INFO - sp = 0x59720d40 lr = 0x49b3e86c pc = 0x4cfa9438 09:56:59 INFO - Found by: given as instruction pointer in context 09:56:59 INFO - 1 libxul.so!mozilla::WebMReader::~WebMReader() [nsAutoPtr.h:3df9a3371d0b : 870 + 0x2] 09:56:59 INFO - r4 = 0x560c0c00 r5 = 0x560c0dd8 r6 = 0x560c0e0c r7 = 0x5671fb14 09:56:59 INFO - r8 = 0x59720dd8 r9 = 0x001e985a r10 = 0x00000000 fp = 0x00000000 09:56:59 INFO - sp = 0x59720d58 pc = 0x4cfaa578 09:56:59 INFO - Found by: call frame info 09:56:59 INFO - 2 libxul.so!mozilla::WebMReader::~WebMReader() [WebMReader.cpp:3df9a3371d0b : 200 + 0x2] 09:56:59 INFO - r4 = 0x560c0c00 r5 = 0x00000000 r6 = 0x5566efec r7 = 0x5671fb14 09:56:59 INFO - r8 = 0x59720dd8 r9 = 0x001e985a r10 = 0x00000000 fp = 0x00000000 09:56:59 INFO - sp = 0x59720d68 pc = 0x4cfaa5d4 09:56:59 INFO - Found by: call frame info 09:56:59 INFO - 3 libxul.so!CSF::CC_Call::Release() + 0x2e 09:56:59 INFO - r4 = 0x560c0c00 r5 = 0x00000000 r6 = 0x5566efec r7 = 0x5671fb14 09:56:59 INFO - r8 = 0x59720dd8 r9 = 0x001e985a r10 = 0x00000000 fp = 0x00000000 09:56:59 INFO - sp = 0x59720d70 pc = 0x4c6d3028 09:56:59 INFO - Found by: call frame info 09:56:59 INFO - 4 libxul.so!mozilla::RefPtr<mozilla::AudioSessionConduit>::~RefPtr() [RefPtr.h:3df9a3371d0b : 283 + 0x2] 09:56:59 INFO - r4 = 0x5876806c r5 = 0x00000000 r6 = 0x5566efec r7 = 0x5671fb14 09:56:59 INFO - r8 = 0x59720dd8 r9 = 0x001e985a r10 = 0x00000000 fp = 0x00000000 09:56:59 INFO - sp = 0x59720d80 pc = 0x4c6d3048 09:56:59 INFO - Found by: call frame info 09:56:59 INFO - 5 libxul.so!mozilla::RequestVideoWithSkipTask::~RequestVideoWithSkipTask() [MediaDecoderReader.cpp:3df9a3371d0b : 195 + 0x12] 09:56:59 INFO - r4 = 0x58768060 r5 = 0x00000000 r6 = 0x5566efec r7 = 0x5671fb14 09:56:59 INFO - r8 = 0x59720dd8 r9 = 0x001e985a r10 = 0x00000000 fp = 0x00000000 09:56:59 INFO - sp = 0x59720d88 pc = 0x4cf65278 09:56:59 INFO - Found by: call frame info 09:56:59 INFO - 6 libxul.so!mozilla::RequestVideoWithSkipTask::~RequestVideoWithSkipTask() [MediaDecoderReader.cpp:3df9a3371d0b : 195 + 0x6] 09:56:59 INFO - r4 = 0x58768060 r5 = 0x00000000 r6 = 0x5566efec r7 = 0x5671fb14 09:56:59 INFO - r8 = 0x59720dd8 r9 = 0x001e985a r10 = 0x00000000 fp = 0x00000000 09:56:59 INFO - sp = 0x59720d90 pc = 0x4cf652a4 09:56:59 INFO - Found by: call frame info 09:56:59 INFO - 7 libxul.so!PipUIContext::Release() [nsNSSComponent.cpp:3df9a3371d0b : 1910 + 0xe] 09:56:59 INFO - r4 = 0x58768060 r5 = 0x00000000 r6 = 0x5566efec r7 = 0x5671fb14 09:56:59 INFO - r8 = 0x59720dd8 r9 = 0x001e985a r10 = 0x00000000 fp = 0x00000000 09:56:59 INFO - sp = 0x59720d98 pc = 0x4c293148 09:56:59 INFO - Found by: call frame info 09:56:59 INFO - 8 libxul.so!mozilla::RefPtr<mozilla::TransportFlow>::assign(mozilla::TransportFlow*) [RefPtr.h:3df9a3371d0b : 283 + 0xa] 09:56:59 INFO - r4 = 0x59720db8 r5 = 0x00000000 r6 = 0x5566efec r7 = 0x5671fb14 09:56:59 INFO - r8 = 0x59720dd8 r9 = 0x001e985a r10 = 0x00000000 fp = 0x00000000 09:56:59 INFO - sp = 0x59720da8 pc = 0x4c6e0010 09:56:59 INFO - Found by: call frame info 09:56:59 INFO - 9 libxul.so!mozilla::MediaTaskQueue::Runner::Run() [RefPtr.h:3df9a3371d0b : 244 + 0xa] 09:56:59 INFO - r4 = 0x57c3ebc0 r5 = 0x5566efc4 r6 = 0x5566efec r7 = 0x5671fb14 09:56:59 INFO - r8 = 0x59720dd8 r9 = 0x001e985a r10 = 0x00000000 fp = 0x00000000 09:56:59 INFO - sp = 0x59720db8 pc = 0x4cf70cac 09:56:59 INFO - Found by: call frame info 09:56:59 INFO - 10 libxul.so!nsThreadPool::Run() [nsThreadPool.cpp:3df9a3371d0b : 217 + 0xa] 09:56:59 INFO - r4 = 0x5671fb00 r5 = 0x00000000 r6 = 0x59720de4 r7 = 0x5671fb14 09:56:59 INFO - r8 = 0x59720dd8 r9 = 0x001e985a r10 = 0x00000000 fp = 0x00000000 09:56:59 INFO - sp = 0x59720dd0 pc = 0x4c2dfa10 09:56:59 INFO - Found by: call frame info 09:56:59 INFO - 11 libxul.so!nsThread::ProcessNextEvent(bool, bool*) [nsThread.cpp:3df9a3371d0b : 766 + 0xa] 09:56:59 INFO - r4 = 0x571fa0b0 r5 = 0x00000000 r6 = 0x59720e24 r7 = 0x59720e5f 09:57:00 INFO - r8 = 0x571fa0e4 r9 = 0x00000000 r10 = 0x00000000 fp = 0x00000001 09:57:00 INFO - sp = 0x59720e10 pc = 0x4c2dd124 09:57:00 INFO - Found by: call frame info 09:57:00 INFO - 12 libxul.so!NS_ProcessNextEvent(nsIThread*, bool) [nsThreadUtils.cpp:3df9a3371d0b : 263 + 0x12] 09:57:00 INFO - r4 = 0x00000000 r5 = 0x555e63c0 r6 = 0x58182530 r7 = 0x571fa0c0 09:57:00 INFO - r8 = 0x0032cdc0 r9 = 0x56578680 r10 = 0x00000000 fp = 0x00000001 09:57:00 INFO - sp = 0x59720e58 pc = 0x4c2938e8 09:57:00 INFO - Found by: call frame info 09:57:00 INFO - 13 libxul.so!mozilla::ipc::MessagePumpForNonMainThreads::Run(base::MessagePump::Delegate*) [MessagePump.cpp:3df9a3371d0b : 307 + 0xa] 09:57:00 INFO - r4 = 0x58182520 r5 = 0x555e63c0 r6 = 0x58182530 r7 = 0x571fa0c0 09:57:00 INFO - r8 = 0x0032cdc0 r9 = 0x56578680 r10 = 0x00000000 fp = 0x00000001 09:57:00 INFO - sp = 0x59720e68 pc = 0x4c4b0ec0 09:57:00 INFO - Found by: call frame info 09:57:00 INFO - 14 libxul.so!MessageLoop::RunInternal() [message_loop.cc:3df9a3371d0b : 229 + 0xa] 09:57:00 INFO - r4 = 0x555e63c0 r5 = 0x59720eb0 r6 = 0x555e63c0 r7 = 0x571fa0c0 09:57:00 INFO - r8 = 0x0032cdc0 r9 = 0x56578680 r10 = 0x00000000 fp = 0x00000001 09:57:00 INFO - sp = 0x59720e90 pc = 0x4c4a0058 09:57:00 INFO - Found by: call frame info 09:57:00 INFO - 15 libxul.so!MessageLoop::Run() [message_loop.cc:3df9a3371d0b : 222 + 0x6] 09:57:00 INFO - r4 = 0x555e63c0 r5 = 0x59720eb0 r6 = 0x555e63c0 r7 = 0x571fa0c0 09:57:00 INFO - r8 = 0x0032cdc0 r9 = 0x56578680 r10 = 0x00000000 fp = 0x00000001 09:57:00 INFO - sp = 0x59720e98 pc = 0x4c4a0180 09:57:00 INFO - Found by: call frame info 09:57:00 INFO - 16 libxul.so!nsThread::ThreadFunc(void*) [nsThread.cpp:3df9a3371d0b : 346 + 0x6] 09:57:00 INFO - r4 = 0x571fa0b0 r5 = 0x59720eb0 r6 = 0x555e63c0 r7 = 0x571fa0c0 09:57:00 INFO - r8 = 0x0032cdc0 r9 = 0x56578680 r10 = 0x00000000 fp = 0x00000001 09:57:00 INFO - sp = 0x59720eb0 pc = 0x4c2dfdc4 09:57:00 INFO - Found by: call frame info 09:57:00 INFO - 17 libnss3.so!_pt_root [ptthread.c:3df9a3371d0b : 212 + 0xa] 09:57:00 INFO - r4 = 0x56578680 r5 = 0x49c06a08 r6 = 0x00000000 r7 = 0x000002ab 09:57:00 INFO - r8 = 0x0032cdc0 r9 = 0x56578680 r10 = 0x00000000 fp = 0x00000001 09:57:00 INFO - sp = 0x59720ed0 pc = 0x49b3e198 09:57:00 INFO - Found by: call frame info

Disabled on Android 2.3: https://hg.mozilla.org/integration/mozilla-inbound/rev/fe422e3506d6

That crash was fixed by bug 1028144, please re-enable the test.

Thanks! Re-enabling: https://hg.mozilla.org/integration/mozilla-inbound/rev/bd2e0173fe19