Issue 453560 in chromium: No sound on HTML5 Web Players (Youtube/ Vimeo)

Feb 3, 2015, 3:34:40 AM2/3/15

unread,

Feb 5, 2015, 2:42:31 AM2/5/15

to chromi...@chromium.org

Comment #86 on issue 453560 by cychi...@chromium.org: No sound on HTML5 Web

Players (Youtube/ Vimeo)
https://code.google.com/p/chromium/issues/detail?id=453560

Finally got the coredump. The trick is to enable it by
sudo touch /mnt/stateful_partition/etc/enable_chromium_coredumps

It seems that somewhere a task is posted, so I need to add a crash at
https://code.google.com/p/chromium/codesearch#chromium/src/media/audio/audio_output_controller.cc&type=cs&sq=package:chromium&q=AudioOutputController::Create&l=52
to find who calls PostTask.

(gdb) bt
#0 0x00007fec2b6de691 in media::AudioManagerBase::MakeAudioOutputStream
(this=0x286097b93580, params=...,
device_id="")
at ../../../../../../../home/chrome-bot/chrome_root/src/media/audio/audio_manager_base.cc:134
#1 0x00007fec2b6e079b in
media::AudioOutputDispatcherImpl::CreateAndOpenStream (this=0x28609a81cc80)

at ../../../../../../../home/chrome-bot/chrome_root/src/media/audio/audio_output_dispatcher_impl.cc:136
#2 0x00007fec2b6e0dfd in media::AudioOutputDispatcherImpl::OpenStream
(this=0x28609a81cc80)

at ../../../../../../../home/chrome-bot/chrome_root/src/media/audio/audio_output_dispatcher_impl.cc:45
#3 0x00007fec2b6e1638 in media::AudioOutputResampler::OpenStream
(this=0x286098bfab00)

at ../../../../../../../home/chrome-bot/chrome_root/src/media/audio/audio_output_resampler.cc:181
#4 0x00007fec2b6e0e1d in media::AudioOutputProxy::Open
(this=0x286099036f60)

at ../../../../../../../home/chrome-bot/chrome_root/src/media/audio/audio_output_proxy.cc:29
#5 0x00007fec2dfba31c in media::AudioOutputController::DoCreate
(this=0x2860993028c0,
is_for_device_change=<optimized out>)

at ../../../../../../../home/chrome-bot/chrome_root/src/media/audio/audio_output_controller.cc:131
#6 0x00007fec2a563fa8 in Run (this=0x7fec2633ab38)

at ../../../../../../../home/chrome-bot/chrome_root/src/base/callback.h:396
#7 base::debug::TaskAnnotator::RunTask (this=this@entry=0x286097b8e5d0,

queue_function=queue_function@entry=0x7fec2e9b0951 "MessageLoop::PostTask",
run_function=run_function@entry=0x7fec2e9b093c "MessageLoop::RunTask",
pending_task=...)

at ../../../../../../../home/chrome-bot/chrome_root/src/base/debug/task_annotator.cc:63
#8 0x00007fec2a552bb6 in RunTask (pending_task=..., this=0x286097b8e480)

at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:459
#9 DeferOrRunPendingTask (pending_task=..., this=<optimized out>)

at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:468
#10 base::MessageLoop::DoWork (this=0x286097b8e480)

at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:580
#11 0x00007fec2a5533b9 in base::MessagePumpDefault::Run
(this=0x286097bd47c0, delegate=0x286097b8e480)

at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_pump_default.cc:32
#12 0x00007fec2ae2e2a2 in base::RunLoop::Run
(this=this@entry=0x7fec2633ad00)

at ../../../../../../../home/chrome-bot/chrome_root/src/base/run_loop.cc:55
#13 0x00007fec2ae1dad5 in base::MessageLoop::Run (this=<optimized out>)

at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:317
#14 0x00007fec2ae3f82f in base::Thread::ThreadMain (this=0x286097b935c0)

at ../../../../../../../home/chrome-bot/chrome_root/src/base/threading/thread.cc:228
#15 0x00007fec2ae3d49f in base::(anonymous namespace)::ThreadFunc

(params=<optimized out>)

at ../../../../../../../home/chrome-bot/chrome_root/src/base/threading/platform_thread_posix.cc:80

#16 0x00007fec28c9f223 in ?? ()
#17 0x0000000000000000 in ?? ()

chro...@googlecode.com

unread,

Feb 5, 2015, 3:10:07 AM2/5/15

to chromi...@chromium.org

Comment #87 on issue 453560 by cychi...@chromium.org: No sound on HTML5 Web

Players (Youtube/ Vimeo)
https://code.google.com/p/chromium/issues/detail?id=453560

Got the backtrace of AudioOutputController::Create.
It comes from IPC message handler in

https://code.google.com/p/chromium/codesearch#chromium/src/content/browser/renderer_host/media/audio_renderer_host.cc&l=300&q=OnCreateStream&type=cs&sq=package:chromium

so need to crash and trace at AudioOutputIPCImpl::CreateStream to see who
posts that message
in
https://code.google.com/p/chromium/codesearch#chromium/src/content/renderer/media/audio_message_filter.cc&rcl=1423027760&l=84

(gdb) bt
#0 0x00007f523d303a21 in media::AudioOutputController::Create
(audio_manager=0x27223506f580,
event_handler=event_handler@entry=0x272236529680, params=...,
output_device_id="", sync_reader=sync_reader@entry=0x27223663f3c0)

at ../../../../../../../home/chrome-bot/chrome_root/src/media/audio/audio_output_controller.cc:57
#1 0x00007f523bfe87f9 in AudioEntry (reader=..., shared_memory=...,
output_device_id="", params=..., render_frame_id=1,
render_view_id=<optimized out>, stream_id=1, host=0x2722362a0640,
this=0x272236529680)

at ../../../../../../../home/chrome-bot/chrome_root/src/content/browser/renderer_host/media/audio_renderer_host.cc:117
#2 content::AudioRendererHost::OnCreateStream
(this=this@entry=0x2722362a0640, stream_id=1, render_view_id=<optimized
out>, render_frame_id=1, session_id=<optimized out>, params=...)

at ../../../../../../../home/chrome-bot/chrome_root/src/content/browser/renderer_host/media/audio_renderer_host.cc:370
#3 0x00007f523bfe85bc in DispatchToMethodImpl<content::AudioRendererHost,
void (content::AudioRendererHost::*)(int, int, int, int,
media::AudioParameters const&), int, int, int, int, media::AudioParameters,
0ul, 1ul, 2ul, 3ul, 4ul> (arg=..., method=
(void (content::AudioRendererHost::*)(content::AudioRendererHost *
const, int, int, int, int, const media::AudioParameters &)) 0x7f523bfe85d0
<content::AudioRendererHost::OnCreateStream(int, int, int, int,
media::AudioParameters const&)>, obj=0x2722362a0640)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/tuple.h:246
#4 DispatchToMethod<content::AudioRendererHost, void
(content::AudioRendererHost::*)(int, int, int, int, media::AudioParameters
const&), int, int, int, int, media::AudioParameters> (arg=..., method=
(void (content::AudioRendererHost::*)(content::AudioRendererHost *
const, int, int, int, int, const media::AudioParameters &)) 0x7f523bfe85d0
<content::AudioRendererHost::OnCreateStream(int, int, int, int,
media::AudioParameters const&)>, obj=0x2722362a0640)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/tuple.h:253
#5 Dispatch<content::AudioRendererHost, content::AudioRendererHost, void,
void (content::AudioRendererHost::*)(int, int, int, int,
media::AudioParameters const&)> (sender=0x2722362a0640, parameter=0x0, func=
(void (content::AudioRendererHost::*)(content::AudioRendererHost *
const, int, int, int, int, const media::AudioParameters &)) 0x7f523bfe85d0
<content::AudioRendererHost::OnCreateStream(int, int, int, int,
media::AudioParameters const&)>, obj=0x2722362a0640, msg=0x7f522edfd9f0)
at ../../../../../../../home/chrome-bot/chrome_root/src/content/common/media/audio_messages.h:86
#6 content::AudioRendererHost::OnMessageReceived (this=0x2722362a0640,
message=...)
at ../../../../../../../home/chrome-bot/chrome_root/src/content/browser/renderer_host/media/audio_renderer_host.cc:305
#7 0x00007f5239c1682a in DispatchMessage (message=...,
this=0x27223615d600)
at ../../../../../../../home/chrome-bot/chrome_root/src/content/public/browser/browser_message_filter.cc:89
#8 content::BrowserMessageFilter::Internal::OnMessageReceived
(this=0x27223615d600, message=...)
at ../../../../../../../home/chrome-bot/chrome_root/src/content/public/browser/browser_message_filter.cc:64
#9 0x00007f5239940a03 in TryFiltersImpl (message=..., filters=std::vector
of length 2, capacity 2 = {...})
at ../../../../../../../home/chrome-bot/chrome_root/src/ipc/message_filter_router.cc:18
#10 IPC::MessageFilterRouter::TryFilters (this=<optimized out>,
message=...)
at ../../../../../../../home/chrome-bot/chrome_root/src/ipc/message_filter_router.cc:83
#11 0x00007f523993d489 in IPC::ChannelProxy::Context::TryFilters
(this=this@entry=0x27223608e840, message=...)
at ../../../../../../../home/chrome-bot/chrome_root/src/ipc/ipc_channel_proxy.cc:75
#12 0x00007f523a7e4e41 in IPC::ChannelProxy::Context::OnMessageReceived
(this=0x27223608e840, message=...)
at ../../../../../../../home/chrome-bot/chrome_root/src/ipc/ipc_channel_proxy.cc:92
#13 0x00007f5239c8440c in IPC::ChannelMojo::OnMessageReceived
(this=0x27223608e8f0, message=...)
at ../../../../../../../home/chrome-bot/chrome_root/src/ipc/mojo/ipc_channel_mojo.cc:327
#14 0x00007f5239c84cfc in OnMessageReceived (this=0x272236395d20)
at ../../../../../../../home/chrome-bot/chrome_root/src/ipc/mojo/ipc_message_pipe_reader.cc:87
#15 IPC::internal::MessagePipeReader::ReadAvailableMessages
(this=this@entry=0x272236395d20)
at ../../../../../../../home/chrome-bot/chrome_root/src/ipc/mojo/ipc_message_pipe_reader.cc:150
#16 0x00007f523d57450b in
IPC::internal::MessagePipeReader::ReadMessagesThenWait
(this=0x272236395d20)
at ../../../../../../../home/chrome-bot/chrome_root/src/ipc/mojo/ipc_message_pipe_reader.cc:157
#17 0x00007f5239c85428 in Run (args#0=@0x7f522edfda84: 0, this=<optimized
out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/callback.h:396
#18 InvokeCallback (result=0, this=<optimized out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/ipc/mojo/async_handle_waiter.cc:139
#19 InvokeWaiterCallback (this=0x2722363f3720)
at ../../../../../../../home/chrome-bot/chrome_root/src/ipc/mojo/async_handle_waiter.cc:78
#20 IPC::internal::AsyncHandleWaiter::Context::DidProcessIOEvent
(this=0x2722363f3720)
at ../../../../../../../home/chrome-bot/chrome_root/src/ipc/mojo/async_handle_waiter.cc:105
#21 0x00007f52398aad5f in DidProcessIOEvent (this=0x272235339840)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_pump_libevent.cc:308
#22 OnFileCanReadWithoutBlocking (pump=0x272235339840, fd=104,
this=0x2722363f37b0)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_pump_libevent.cc:100
#23 base::MessagePumpLibevent::OnLibeventNotification (fd=104,
flags=<optimized out>, context=<optimized out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_pump_libevent.cc:354
#24 0x00007f52398b0f8d in event_process_active (base=<optimized out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/third_party/libevent/event.c:373
#25 event_base_loop (base=0x272235319a00, flags=1)
at ../../../../../../../home/chrome-bot/chrome_root/src/third_party/libevent/event.c:513
#26 0x00007f52398a9dc6 in base::MessagePumpLibevent::Run
(this=0x272235339840, delegate=0x272235321a80)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_pump_libevent.cc:269
#27 0x00007f523a1772a2 in base::RunLoop::Run
(this=this@entry=0x7f522edfdcb0)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/run_loop.cc:55
#28 0x00007f523a166ad5 in base::MessageLoop::Run
(this=this@entry=0x272235321a80)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:317
#29 0x00007f523a188748 in base::Thread::Run
(this=this@entry=0x272235366a50,
message_loop=message_loop@entry=0x272235321a80)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/threading/thread.cc:174
#30 0x00007f523bd8c551 in content::BrowserThreadImpl::IOThreadRun
(this=this@entry=0x272235366a50,
message_loop=message_loop@entry=0x272235321a80)

at ../../../../../../../home/chrome-bot/chrome_root/src/content/browser/browser_thread_impl.cc:218
#31 0x00007f523bd8c71b in content::BrowserThreadImpl::Run
(this=0x272235366a50, message_loop=0x272235321a80)
at ../../../../../../../home/chrome-bot/chrome_root/src/content/browser/browser_thread_impl.cc:253
#32 0x00007f523a18882f in base::Thread::ThreadMain (this=0x272235366a50)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/threading/thread.cc:228
#33 0x00007f523a18649f in base::(anonymous namespace)::ThreadFunc

(params=<optimized out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/threading/platform_thread_posix.cc:80

#34 0x00007f5237fe8223 in ?? ()
#35 0x0000000000000000 in ?? ()

chro...@googlecode.com

unread,

Feb 5, 2015, 5:21:23 AM2/5/15

to chromi...@chromium.org

Comment #88 on issue 453560 by cychi...@chromium.org: No sound on HTML5 Web

Players (Youtube/ Vimeo)
https://code.google.com/p/chromium/issues/detail?id=453560

Found who called AudioOutputIPCImpl::CreateStream.
Took longer than expected. Crash at AudioOutputIPCImpl::CreateStream only
crash a renderer process, and does not generate the coredump at
/mnt/stateful_partition/encrypted/var/coredumps like #87.
The trick is to pass --no-sandbox argument to chrome to get coredump from
renderer process at /var/coredumps.

(gdb) bt
#0 0x00007ff42c561bd1 in
content::AudioMessageFilter::AudioOutputIPCImpl::CreateStream
(this=0x2c6dd29ac000, delegate=0x2c6dd1b980e0, params=..., session_id=0)

at ../../../../../../../home/chrome-bot/chrome_root/src/content/renderer/media/audio_message_filter.cc:87
#1 0x00007ff429b36fa8 in Run (this=0x7ff41ff89b08)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/callback.h:396
#2 base::debug::TaskAnnotator::RunTask (this=this@entry=0x2c6dd13ce5d0,
queue_function=queue_function@entry=0x7ff42df83951 "MessageLoop::PostTask",
run_function=run_function@entry=0x7ff42df8393c "MessageLoop::RunTask",
pending_task=...)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/debug/task_annotator.cc:63
#3 0x00007ff429b25bb6 in RunTask (pending_task=..., this=0x2c6dd13ce480)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:459
#4 DeferOrRunPendingTask (pending_task=..., this=<optimized out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:468
#5 base::MessageLoop::DoWork (this=0x2c6dd13ce480)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:580
#6 0x00007ff429b33cb9 in base::MessagePumpLibevent::Run
(this=0x2c6dd13b5240, delegate=0x2c6dd13ce480)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_pump_libevent.cc:232
#7 0x00007ff42a4012a2 in base::RunLoop::Run
(this=this@entry=0x7ff41ff89d00)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/run_loop.cc:55
#8 0x00007ff42a3f0ad5 in base::MessageLoop::Run (this=<optimized out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:317
#9 0x00007ff42a41282f in base::Thread::ThreadMain (this=0x7fff1095cb88)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/threading/thread.cc:228
#10 0x00007ff42a41049f in base::(anonymous namespace)::ThreadFunc

(params=<optimized out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/threading/platform_thread_posix.cc:80

#11 0x00007ff428272223 in start_thread (arg=0x7ff41ff8a700) at
pthread_create.c:309
#12 0x00007ff42798d16d in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
(gdb) up
#1 0x00007ff429b36fa8 in Run (this=0x7ff41ff89b08)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/callback.h:396
396 ../../../../../../../home/chrome-bot/chrome_root/src/base/callback.h:

No
such file or directory.
(gdb)

#2 base::debug::TaskAnnotator::RunTask (this=this@entry=0x2c6dd13ce5d0,
queue_function=queue_function@entry=0x7ff42df83951 "MessageLoop::PostTask",
run_function=run_function@entry=0x7ff42df8393c "MessageLoop::RunTask",
pending_task=...)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/debug/task_annotator.cc:63
63 ../../../../../../../home/chrome-bot/chrome_root/src/base/debug/task_annotator.cc:

No
such file or directory.

(gdb) info local
stopwatch = {start_time_ = {ms_ = 9341863}, wallclock_duration_ms_ = 0,
current_thread_data_ = 0x2c6dd13c5a00, excluded_duration_ms_ = 0, parent_ =
0x7ff41ff89cb0}
queue_duration = {ms_ = 0}
trace_memory_unique_53 = {static enabled_ = false}
trace_event_unique_category_group_enabled53 = 0x7ff42ed6b040
<base::debug::(anonymous namespace)::g_category_group_enabled> ""
program_counter = 0x7ff42d58e23c <media::AudioOutputDevice::Start()+156>

( we can see it came from AudioOutputDevice::Start()
https://code.google.com/p/chromium/codesearch#chromium/src/media/audio/audio_output_device.cc&cl=GROK&l=83
)

trace_event_unique_atomic53 = 140686734569536
trace_event_unique_tracer53 = {p_data_ = 0x0, data_ =
{category_group_enabled = 0x7ff42799a88d <__GI___clock_gettime+29> "H=",
name = 0x2c6dd1f017e0 "0\270\234.\364\177", event_handle = {chunk_seq =
699595830, chunk_index = 32756,
event_index = 0}}}
(gdb) up
#3 0x00007ff429b25bb6 in RunTask (pending_task=..., this=0x2c6dd13ce480)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:459
459 ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:

No
such file or directory.

Now I need to set crash at AudioOutputDevice::Start() to see who post a
task to do AudioOutputDevice::CreateStreamOnIOThread.

chro...@googlecode.com

unread,

Feb 5, 2015, 6:57:22 AM2/5/15

to chromi...@chromium.org

Comment #89 on issue 453560 by cychi...@chromium.org: No sound on HTML5 Web

Players (Youtube/ Vimeo)
https://code.google.com/p/chromium/issues/detail?id=453560

Another round of backtrace shows that AudioOutputDevice::Start can be
traced back to
DecoderStream<StreamType>::OnDecorderSelected.

OnDecorderSelected is set as callback in
DecoderStream<StreamType>::SelectDecoder when it calls
decoder_selector_->SelectDecoder

https://code.google.com/p/chromium/codesearch#chromium/src/media/filters/decoder_stream.cc&q=OnDecoderSelected&sq=package:chromium&l=212&type=cs

So, the next round is to find out who calls
DecoderStream<StreamType>::SelectDecoder.

(gdb) bt
#0 0x00007f6a353f71a1 in media::AudioOutputDevice::Start
(this=0x3379fe705dd0)
at ../../../../../../../home/chrome-bot/chrome_root/src/media/audio/audio_output_device.cc:80
#1 0x00007f6a343cbf51 in content::AudioRendererMixerManager::GetMixer
(this=0x3379fe156540, source_render_view_id=<optimized out>,
source_render_frame_id=1, params=...)

at ../../../../../../../home/chrome-bot/chrome_root/src/content/renderer/media/audio_renderer_mixer_manager.cc:89
#2 0x00007f6a353fc50f in Run (args#0=..., this=0x3379fe020d18)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/callback.h:396
#3 media::AudioRendererMixerInput::Start (this=0x3379fe020cf0)
at ../../../../../../../home/chrome-bot/chrome_root/src/media/base/audio_renderer_mixer_input.cc:46
#4 0x00007f6a3445fd42 in media::WebAudioSourceProviderImpl::Start
(this=0x3379fde5b1e0)
at ../../../../../../../home/chrome-bot/chrome_root/src/media/blink/webaudiosourceprovider_impl.cc:132
#5 0x00007f6a3545fb31 in
media::AudioRendererImpl::OnAudioBufferStreamInitialized
(this=0x3379fe27f3c0, success=<optimized out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/media/filters/audio_renderer_impl.cc:359
#6 0x00007f6a35464bd5 in Run (args#0=@0x7f6a2556d840: true,
this=0x7f6a2556d850)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/callback.h:396
#7 media::DecoderStream<(media::DemuxerStream::Type)1>::OnDecoderSelected
(this=0x3379fde550e0, selected_decoder=..., decrypting_demuxer_stream=...)

at ../../../../../../../home/chrome-bot/chrome_root/src/media/filters/decoder_stream.cc:268

--> DecoderStream<StreamType>::OnDecorderSelected is called.

#8 0x00007f6a35465b37 in Run (args#1=..., args#0=..., object=<optimized
out>, this=<synthetic pointer>)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/bind_internal.h:185
#9 base::internal::InvokeHelper<true, void,
base::internal::RunnableAdapter<void
(media::DecoderStream<(media::DemuxerStream::Type)1>::*)(scoped_ptr<media::AudioDecoder,
base::DefaultDeleter<media::AudioDecoder> >, scoped_ptr<media
::DecryptingDemuxerStream,
base::DefaultDeleter<media::DecryptingDemuxerStream> >)>, void
(base::WeakPtr<media::DecoderStream<(media::DemuxerStream::Type)1> >
const&, scoped_ptr<media::AudioDecoder, base::DefaultDeleter<media::Audio
Decoder> >, scoped_ptr<media::DecryptingDemuxerStream,
base::DefaultDeleter<media::DecryptingDemuxerStream>
>)>::MakeItSo(base::internal::RunnableAdapter<void
(media::DecoderStream<(media::DemuxerStream::Type)1>::*)(scoped_ptr<media
::AudioDecoder, base::DefaultDeleter<media::AudioDecoder> >,
scoped_ptr<media::DecryptingDemuxerStream,
base::DefaultDeleter<media::DecryptingDemuxerStream> >)>,
base::WeakPtr<media::DecoderStream<(media::DemuxerStream::Type)1> > co
nst&, scoped_ptr<media::AudioDecoder,
base::DefaultDeleter<media::AudioDecoder> >,
scoped_ptr<media::DecryptingDemuxerStream,
base::DefaultDeleter<media::DecryptingDemuxerStream> >) (runnable=...,
weak_ptr=...,
args#0=(media::AudioDecoder *) 0x0,
args#1=(media::DecryptingDemuxerStream *) 0x0)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/bind_internal.h:391
#10 0x00007f6a35465bed in base::internal::Invoker<1,
base::internal::BindState<base::internal::RunnableAdapter<void
(media::DecoderStream<(media::DemuxerStream::Type)1>::*)(scoped_ptr<media::AudioDecoder,
base::DefaultDeleter<media:
:AudioDecoder> >, scoped_ptr<media::DecryptingDemuxerStream,
base::DefaultDeleter<media::DecryptingDemuxerStream> >)>, void
(media::DecoderStream<(media::DemuxerStream::Type)1>*,
scoped_ptr<media::AudioDecoder, base::DefaultDeleter<
media::AudioDecoder> >, scoped_ptr<media::DecryptingDemuxerStream,
base::DefaultDeleter<media::DecryptingDemuxerStream> >), void
(base::WeakPtr<media::DecoderStream<(media::DemuxerStream::Type)1> >)>,
void (media::DecoderStream<(med
ia::DemuxerStream::Type)1>*, scoped_ptr<media::AudioDecoder,
base::DefaultDeleter<media::AudioDecoder> >,
scoped_ptr<media::DecryptingDemuxerStream,
base::DefaultDeleter<media::DecryptingDemuxerStream>
>)>::Run(base::internal::BindS
tateBase*, scoped_ptr<media::AudioDecoder,
base::DefaultDeleter<media::AudioDecoder> >,
scoped_ptr<media::DecryptingDemuxerStream,
base::DefaultDeleter<media::DecryptingDemuxerStream> >) (base=<optimized
out>, x2=..., x3=...)

at ../../../../../../../home/chrome-bot/chrome_root/src/base/bind_internal.h:625
#11 0x00007f6a3547a062 in base::Callback<void
(scoped_ptr<media::AudioDecoder, base::DefaultDeleter<media::AudioDecoder>
>, scoped_ptr<media::DecryptingDemuxerStream,
base::DefaultDeleter<media::DecryptingDemuxerStream> >)>::Run(sco
ped_ptr<media::AudioDecoder, base::DefaultDeleter<media::AudioDecoder> >,
scoped_ptr<media::DecryptingDemuxerStream,
base::DefaultDeleter<media::DecryptingDemuxerStream> >) const
(this=this@entry=0x7f6a2556d980,
args#0=(media::AudioDecoder *) 0x0,
args#1=(media::DecryptingDemuxerStream *) 0x0)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/callback.h:396
#12 0x00007f6a3547a119 in MakeItSo (args#1=..., args#0=..., runnable=...)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/bind_internal.h:381
#13 base::internal::Invoker<2,
base::internal::BindState<base::Callback<void
(scoped_ptr<media::AudioDecoder, base::DefaultDeleter<media::AudioDecoder>
>, scoped_ptr<media::DecryptingDemuxerStream,
base::DefaultDeleter<media::Decryp
tingDemuxerStream> >)>, void (scoped_ptr<media::AudioDecoder,
base::DefaultDeleter<media::AudioDecoder> >,
scoped_ptr<media::DecryptingDemuxerStream,
base::DefaultDeleter<media::DecryptingDemuxerStream> >), void
(base::internal::Pas
sedWrapper<scoped_ptr<media::AudioDecoder,
base::DefaultDeleter<media::AudioDecoder> > >,
base::internal::PassedWrapper<scoped_ptr<media::DecryptingDemuxerStream,
base::DefaultDeleter<media::DecryptingDemuxerStream> > >)>, void (sco
ped_ptr<media::AudioDecoder, base::DefaultDeleter<media::AudioDecoder> >,
scoped_ptr<media::DecryptingDemuxerStream,
base::DefaultDeleter<media::DecryptingDemuxerStream>
>)>::Run(base::internal::BindStateBase*) (
base=<optimized out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/bind_internal.h:562
#14 0x00007f6a3199ffa8 in Run (this=0x7f6a2556db38)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/callback.h:396
#15 base::debug::TaskAnnotator::RunTask (this=this@entry=0x3379fe245ed0,
queue_function=queue_function@entry=0x7f6a35dec951 "MessageLoop::PostTask",
run_function=run_function@entry=0x7f6a35dec93c "MessageLoop::RunTask",
pending_task=...)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/debug/task_annotator.cc:63
#16 0x00007f6a3198ebb6 in RunTask (pending_task=..., this=0x3379fe245d80)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:459
#17 DeferOrRunPendingTask (pending_task=..., this=<optimized out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:468
#18 base::MessageLoop::DoWork (this=0x3379fe245d80)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:580
#19 0x00007f6a3198f3b9 in base::MessagePumpDefault::Run
(this=0x3379fe2407c0, delegate=0x3379fe245d80)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_pump_default.cc:32
#20 0x00007f6a3226a2a2 in base::RunLoop::Run
(this=this@entry=0x7f6a2556dd00)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/run_loop.cc:55
#21 0x00007f6a32259ad5 in base::MessageLoop::Run (this=<optimized out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:317
#22 0x00007f6a3227b82f in base::Thread::ThreadMain (this=0x3379fe537540)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/threading/thread.cc:228
#23 0x00007f6a3227949f in base::(anonymous namespace)::ThreadFunc

(params=<optimized out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/threading/platform_thread_posix.cc:80

#24 0x00007f6a300db223 in ?? ()
#25 0x0000000000000000 in ?? ()

chro...@googlecode.com

unread,

Feb 5, 2015, 7:33:23 AM2/5/15

to chromi...@chromium.org

Comment #90 on issue 453560 by cychi...@chromium.org: No sound on HTML5 Web

Players (Youtube/ Vimeo)
https://code.google.com/p/chromium/issues/detail?id=453560

Another round of backtrace suggests it is from
FFmpegDemuxer::OnFindStreamInfoDone.
FFmpegDemuxer::OnFindStreamInfoDone is only referenced in
FFmpegDemuxer::OnOpenContextDone

https://code.google.com/p/chromium/codesearch#chromium/src/media/filters/ffmpeg_demuxer.cc&l=806&rcl=1423054664&sq=package:chromium

FFmpegDemuxer::OnOpenContextDone is only referenced in
FFmpegDemuxer::Initialize

so we need to find out what audio file is requested to play and thus
initialize a FFmpegDemuxer

up to #7 and use info local shows

(gdb) up
#7 media::FFmpegDemuxer::OnFindStreamInfoDone(base::Callback<void
(media::PipelineStatus)> const&, int) (this=<optimized out>, status_cb=...,
result=<optimized out>)

at ../../../../../../../home/chrome-bot/chrome_root/src/media/filters/ffmpeg_demuxer.cc:1080
1080 ../../../../../../../home/chrome-bot/chrome_root/src/media/filters/ffmpeg_demuxer.cc:

No
such file or directory.
(gdb) info local

start_time_estimates = <optimized out>
video_stream = <optimized out>
video_config = {codec_ = media::kUnknownVideoCodec, profile_ =
media::VIDEO_CODEC_PROFILE_UNKNOWN, format_ = media::VideoFrame::UNKNOWN,
coded_size_ = {width_ = 0, height_ = 0}, visible_rect_ = {origin_ = {x_ =
0, y_ = 0},
size_ = {width_ = 0, height_ = 0}}, natural_size_ = {width_ = 0,
height_ = 0}, extra_data_ = std::vector of length 0, capacity 0,
is_encrypted_ = false}
filesize_in_bytes = 56208
audio_stream = <optimized out>
audio_config = {codec_ = media::kCodecPCM, sample_format_ =
media::kSampleFormatS16, bytes_per_channel_ = 2, channel_layout_ =
media::CHANNEL_LAYOUT_STEREO, samples_per_second_ = 48000, bytes_per_frame_
= 4,
extra_data_ = std::vector of length 0, capacity 0, is_encrypted_ = false,
seek_preroll_ = {delta_ = 0}, codec_delay_ = 0}
max_duration = {delta_ = 292083}

Note that there is a filesize_in_bytes = 56208
Search for file of that size on dut we gets the result !!

/usr/share/chromeos-assets/input_methods/input_tools/sounds/keypress-delete.wav

Then we try to remove that file and start ui again. It still crash at the
same point, and it wants to play
/usr/share/chromeos-assets/input_methods/input_tools/sounds/keypress-return.wav
this time.

It is weird why it want to play a keypress sound, but not a specific sound.
Then we remove the entire sounds/ directory.

Then it does not crash at login screen.

I am going to do another round of backtrace setting crash at
FFmpegDemuxer::Initialize to see how that keypress sound request happened.

(gdb) bt
#0 0x00007fe077ad3fa1 in
media::DecoderStream<(media::DemuxerStream::Type)1>::SelectDecoder(base::Callback<void
(base::Callback<void (media::Decryptor*, base::Callback<void (bool)>
const&)> const&)> const&) (this=0x3ebca15e540,
set_decryptor_ready_cb=...)
at ../../../../../../../home/chrome-bot/chrome_root/src/media/filters/decoder_stream.cc:208
#1 0x00007fe077ad415e in
media::DecoderStream<(media::DemuxerStream::Type)1>::Initialize(media::DemuxerStream*,
base::Callback<void (bool)> const&, base::Callback<void
(base::Callback<void (media::Decryptor*, base::Callback<void (b
ool)> const&)> const&)> const&, base::Callback<void
(media::PipelineStatistics const&)> const&) (this=<optimized out>,
stream=stream@entry=0x3ebc9eaa800, init_cb=..., set_decryptor_ready_cb=...,
statistics_cb=...)

at ../../../../../../../home/chrome-bot/chrome_root/src/media/filters/decoder_stream.cc:98
#2 0x00007fe077ad06f8 in
media::AudioRendererImpl::Initialize(media::DemuxerStream*,
base::Callback<void (media::PipelineStatus)> const&, base::Callback<void
(base::Callback<void (media::Decryptor*, base::Callback<void (bool)> cons
t&)> const&)> const&, base::Callback<void (media::PipelineStatistics
const&)> const&, base::Callback<void (media::BufferingState)> const&,
base::Callback<void ()> const&, base::Callback<void
(media::PipelineStatus)> const&) (
this=0x3ebc9e64280, stream=0x3ebc9eaa800, init_cb=...,
set_decryptor_ready_cb=..., statistics_cb=..., buffering_state_cb=...,
ended_cb=..., error_cb=...)

at ../../../../../../../home/chrome-bot/chrome_root/src/media/filters/audio_renderer_impl.cc:320
#3 0x00007fe077aa2daa in media::RendererImpl::InitializeAudioRenderer
(this=0x7fe067bde490)
at ../../../../../../../home/chrome-bot/chrome_root/src/media/filters/renderer_impl.cc:261
#4 0x00007fe077a77465 in
media::Pipeline::InitializeRenderer(base::Callback<void
(media::PipelineStatus)> const&) (this=0x7fe067bde560, done_cb=...)

at ../../../../../../../home/chrome-bot/chrome_root/src/media/base/pipeline.cc:727
#5 0x00007fe077a781d7 in media::Pipeline::StateTransitionTask
(this=0x3ebca13f240, status=<optimized out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/media/base/pipeline.cc:345
#6 0x00007fe077a93225 in Run (args#0=@0x7fe067bde890: media::PIPELINE_OK,
this=0x3ebca403d30)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/callback.h:396
#7 media::FFmpegDemuxer::OnFindStreamInfoDone(base::Callback<void
(media::PipelineStatus)> const&, int) (this=<optimized out>, status_cb=...,
result=<optimized out>)

at ../../../../../../../home/chrome-bot/chrome_root/src/media/filters/ffmpeg_demuxer.cc:1080

---->media::FFmpegDemuxer::OnFindStreamInfoDone

#8 0x00007fe0748ea944 in Run (this=0x3ebca4b1e38)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/callback.h:396
#9 base::(anonymous
namespace)::PostTaskAndReplyRelay::RunReplyAndSelfDestruct
(this=0x3ebca4b1e10)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/threading/post_task_and_reply_impl.cc:58
#10 0x00007fe074010fa8 in Run (this=0x7fe067bdeb38)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/callback.h:396
#11 base::debug::TaskAnnotator::RunTask (this=this@entry=0x3ebca23ded0,
queue_function=queue_function@entry=0x7fe07845d951 "MessageLoop::PostTask",
run_function=run_function@entry=0x7fe07845d93c "MessageLoop::RunTask",
pending_task=...)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/debug/task_annotator.cc:63
#12 0x00007fe073fffbb6 in RunTask (pending_task=..., this=0x3ebca23dd80)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:459
#13 DeferOrRunPendingTask (pending_task=..., this=<optimized out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:468
#14 base::MessageLoop::DoWork (this=0x3ebca23dd80)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:580
#15 0x00007fe0740003b9 in base::MessagePumpDefault::Run
(this=0x3ebca21f7c0, delegate=0x3ebca23dd80)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_pump_default.cc:32
#16 0x00007fe0748db2a2 in base::RunLoop::Run
(this=this@entry=0x7fe067bded00)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/run_loop.cc:55
#17 0x00007fe0748caad5 in base::MessageLoop::Run (this=<optimized out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/message_loop/message_loop.cc:317
#18 0x00007fe0748ec82f in base::Thread::ThreadMain (this=0x3ebca1f7f00)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/threading/thread.cc:228
#19 0x00007fe0748ea49f in base::(anonymous namespace)::ThreadFunc

(params=<optimized out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/threading/platform_thread_posix.cc:80

#20 0x00007fe07274c223 in ?? ()
#21 0x0000000000000000 in ?? ()

chro...@googlecode.com

unread,

Feb 5, 2015, 9:57:25 AM2/5/15

to chromi...@chromium.org

Comment #91 on issue 453560 by cychi...@chromium.org: No sound on HTML5 Web

Players (Youtube/ Vimeo)
https://code.google.com/p/chromium/issues/detail?id=453560

FFmpegDemuxer::Initialize can be traced back to media::Pipeline::Start,
so I set another crash at media::Pipeline::Start and do a backtrace.
This backtrace is quite long, but we can look at level #3

#3 media::BufferedDataSource::StartCallback (this=0x572015d4640,
status=<optimized out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/media/blink/buffered_data_source.cc:393
393 ../../../../../../../home/chrome-bot/chrome_root/src/media/blink/buffered_data_source.cc:

No
such file or directory.

(gdb) print *this
$11 = {<media::DataSource> = {_vptr.DataSource = 0x7f31d0a96110 <vtable for
media::BufferedDataSource+16>}, url_ = {spec_
= "chrome-extension://jkghodnilhceideoidjikpgommlajknk/sounds/keypress-delete.wav",
is_valid_ = true,

----> spec_
= "chrome-extension://jkghodnilhceideoidjikpgommlajknk/sounds/keypress-delete.wav"

Maybe this is keyboard chrome extension somehow getting triggered by a key
down event?

parsed_ = {scheme = {begin = 0, len = 16}, username = {begin = 0, len =
-1}, password = {begin = 0, len = -1}, host = {begin = 19, len = 32}, port
= {begin = 0, len = -1}, path = {begin = 51, len = 27}, query = {begin = 0,
len = -1}, ref = {begin = 0, len = -1}, inner_parsed_ = 0x0},
inner_url_ = (GURL *) 0x0}, cors_mode_ =
media::BufferedResourceLoader::kUnspecified, total_bytes_ = 56208,
streaming_ = false, frame_ = 0x12c884228000,
loader_ = (media::BufferedResourceLoader *) 0x57201641180, init_cb_ =
{<base::internal::CallbackBase> = {bind_state_ = {ptr_ = 0x0},
polymorphic_invoke_ = 0x0}, <No data fields>},
read_op_ = (media::BufferedDataSource::ReadOperation *) 0x0,
intermediate_read_buffer_ = std::vector of length 32768, capacity 32768 =
{0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000', 0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
0 '\000'...}, render_task_runner_ = {ptr_ = 0x572015e9b60}, lock_ = {lock_
= {
native_handle_ = {__data = {__lock = 1, __count = 0, __owner = 26204,
__nusers = 1, __kind = 0, __spins = 0, __elision = 0, __list = {__prev =
0x0, __next = 0x0}},
__size = "\001\000\000\000\000\000\000\000\\f\000\000\001", '\000'
<repeats 26 times>, __align = 1}}}, stop_signal_received_ = false,
media_has_played_ = false, preload_ = media::BufferedDataSource::AUTO,
bitrate_ = 0,
playback_rate_ = 0, media_log_ = {ptr_ = 0x57201901e60}, host_ =
0x5720189fb60, downloading_cb_ = {<base::internal::CallbackBase> =
{bind_state_ = {ptr_ = 0x57202016d50},
polymorphic_invoke_ = 0x7f31ce71ea80 <base::internal::Invoker<1,

base::internal::BindState<base::internal::RunnableAdapter<void

(media::WebMediaPlayerImpl::*)(bool)>, void (media::WebMediaPlayerImpl*,
bool), void (base::WeakPt
r<media::WebMediaPlayerImpl>)>, void (media::WebMediaPlayerImpl*,
bool)>::Run(base::internal::BindStateBase*, bool const&)>}, <No data
fields>}, weak_ptr_ = {<base::internal::WeakPtrBase> = {ref_ = {flag_ = {
ptr_ = 0x572018fe4a0}}}, ptr_ = 0x572015d4640}, weak_factory_ =
{weak_reference_owner_ = {flag_ = {ptr_ = 0x572018fe4a0}}, ptr_ =
0x572015d4640}}

(gdb) bt
#0 0x00007f31cf6d3a01 in media::Pipeline::Start(media::Demuxer*,
scoped_ptr<media::Renderer, base::DefaultDeleter<media::Renderer> >,

base::Callback<void ()> const&, base::Callback<void

(media::PipelineStatus)> const&, base::Callba

ck<void (media::PipelineStatus)> const&, base::Callback<void

(media::PipelineMetadata)> const&, base::Callback<void

(media::BufferingState)> const&, base::Callback<void

(scoped_refptr<media::VideoFrame> const&)> const&, base::Callba
ck<void ()> const&, base::Callback<void (media::TextTrackConfig const&,
base::Callback<void (scoped_ptr<media::TextTrack,
base::DefaultDeleter<media::TextTrack> >)> const&)> const&)
(this=this@entry=0x5720189f940,
demuxer=0x572018c2100, renderer=(media::Renderer *) 0x57202053360,
ended_cb=..., error_cb=..., seek_cb=..., metadata_cb=...,
buffering_state_cb=..., paint_cb=..., duration_change_cb=...,
add_text_track_cb=...)

at ../../../../../../../home/chrome-bot/chrome_root/src/media/base/pipeline.cc:73
#1 0x00007f31ce72003e in media::WebMediaPlayerImpl::StartPipeline
(this=0x5720189f900)
at ../../../../../../../home/chrome-bot/chrome_root/src/media/blink/webmediaplayer_impl.cc:891
#2 0x00007f31ce724567 in Run (args#0=@0x7fff38539c5d: true,
this=0x7fff38539c60)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/callback.h:396
#3 media::BufferedDataSource::StartCallback (this=0x572015d4640,
status=<optimized out>)
at ../../../../../../../home/chrome-bot/chrome_root/src/media/blink/buffered_data_source.cc:393
#4 0x00007f31ce727efe in Run (args#0=@0x7fff38539cf0:
media::BufferedResourceLoader::kOk, this=0x7fff38539d00)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/callback.h:396
#5 DoneStart (status=media::BufferedResourceLoader::kOk,
this=0x57201641180)
at ../../../../../../../home/chrome-bot/chrome_root/src/media/blink/buffered_resource_loader.cc:775
#6 media::BufferedResourceLoader::didReceiveResponse (this=<optimized
out>, loader=<optimized out>, response=...)
at ../../../../../../../home/chrome-bot/chrome_root/src/media/blink/buffered_resource_loader.cc:441
#7 0x00007f31cd19e115 in
blink::AssociatedURLLoader::ClientAdapter::didReceiveResponse
(this=0x12c884278400, response=..., handle=...)

at ../../../../../../../home/chrome-bot/chrome_root/src/third_party/WebKit/Source/web/AssociatedURLLoader.cpp:217
#8 0x00007f31cd59f74d in blink::DocumentThreadableLoader::handleResponse
(this=0x12c8842bc8c0, identifier=6, response=..., handle=...)

at ../../../../../../../home/chrome-bot/chrome_root/src/third_party/WebKit/Source/core/loader/DocumentThreadableLoader.cpp:444
#9 0x00007f31cd59f911 in blink::DocumentThreadableLoader::responseReceived
(this=<optimized out>, resource=<optimized out>, response=..., handle=...)

at ../../../../../../../home/chrome-bot/chrome_root/src/third_party/WebKit/Source/core/loader/DocumentThreadableLoader.cpp:374
#10 0x00007f31cd684506 in blink::RawResource::responseReceived
(this=0x12c884375080, response=..., handle=...)
at ../../../../../../../home/chrome-bot/chrome_root/src/third_party/WebKit/Source/core/fetch/RawResource.cpp:106
#11 0x00007f31cd4f9b54 in blink::ResourceLoader::didReceiveResponse
(this=0x12c884380900, response=..., rawHandle=0x0)

at ../../../../../../../home/chrome-bot/chrome_root/src/third_party/WebKit/Source/core/fetch/ResourceLoader.cpp:368
#12 0x00007f31cbfeb741 in
content::WebURLLoaderImpl::Context::OnReceivedResponse (this=0x572019180d0,
initial_info=...)
at ../../../../../../../home/chrome-bot/chrome_root/src/content/child/web_url_loader_impl.cc:638
#13 0x00007f31cbfe6cb7 in content::ResourceDispatcher::OnReceivedResponse
(this=this@entry=0x572015c4a20, request_id=<optimized out>,
response_head=...)

at ../../../../../../../home/chrome-bot/chrome_root/src/content/child/resource_dispatcher.cc:392
#14 0x00007f31cbfe7f32 in DispatchToMethodImpl<content::ResourceDispatcher,
void (content::ResourceDispatcher::*)(int, content::ResourceResponseHead
const&), int, content::ResourceResponseHead, 0ul, 1ul> (arg=...,
method=<optimized out>, obj=0x572015c4a20)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/tuple.h:246
#15 DispatchToMethod<content::ResourceDispatcher, void
(content::ResourceDispatcher::*)(int, content::ResourceResponseHead
const&), int, content::ResourceResponseHead> (arg=..., method=<optimized
out>, obj=0x572015c4a20)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/tuple.h:253
#16 Dispatch<content::ResourceDispatcher, content::ResourceDispatcher,
void, void (content::ResourceDispatcher::*)(int,
content::ResourceResponseHead const&)> (sender=<optimized out>,
parameter=0x0, func=<optimized out>,
obj=0x572015c4a20, msg=0x572016bdf80)
at ../../../../../../../home/chrome-bot/chrome_root/src/content/common/resource_messages.h:291
#17 DispatchMessage (message=..., this=0x572015c4a20)
at ../../../../../../../home/chrome-bot/chrome_root/src/content/child/resource_dispatcher.cc:722
#18 content::ResourceDispatcher::OnMessageReceived (this=0x572015c4a20,
message=...)
at ../../../../../../../home/chrome-bot/chrome_root/src/content/child/resource_dispatcher.cc:342
#19 0x00007f31cbc6dfa8 in Run (this=0x7fff3853add8)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/callback.h:396
#20 base::debug::TaskAnnotator::RunTask (this=this@entry=0x572015c449c,
queue_function=queue_function@entry=0x7f31d01367a6 "TaskQueueManager::PostTask",
run_function=run_function@entry=0x7f31d01367c1 "TaskQueueManager::RunTask",
pending_task=...)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/debug/task_annotator.cc:63
#21 0x00007f31cbff4add in ProcessTaskFromWorkQueue (queue_index=<optimized
out>, this=0x572015c4480)
at ../../../../../../../home/chrome-bot/chrome_root/src/content/renderer/scheduler/task_queue_manager.cc:408
#22 DoWork (posted_from_main_thread=<optimized out>, this=0x572015c4480)
at ../../../../../../../home/chrome-bot/chrome_root/src/content/renderer/scheduler/task_queue_manager.cc:380
#23 Run (args#0=<optimized out>, object=<optimized out>, this=<synthetic

pointer>)
at ../../../../../../../home/chrome-bot/chrome_root/src/base/bind_internal.h:185

The fix is in 6761.0.0.

Reply all

Reply to author

Forward