The error in pulseaudio is from a failed assert for the in_n_frames check
against input_frames_used:
pa_assert((unsigned) data.input_frames_used ==
in_n_frames);
I ran pulseaudio through GDB and re-created error. Here are the exact steps I
took to do that:
Ubuntu 11.10
pulseaudio 1.0
1. Uninstalled pulseaudio and installed pulseaudio-dbg so I'd have symbols
2. Started pulseaudio under GDB
3. Re-created error:
a) Started Chrome browser (version 15)
b) Went to website that has HTML <embed> audio track (*not* HTML 5)
c) pulseaudio crashed as expected and reported in this ticket
Here is the GDB back trace at the time of this error:
(gdb) bt
#0 0x00007ffff66483a5 in __GI_raise (sig=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1 0x00007ffff664bb0b in __GI_abort () at abort.c:92
#2 0x00007ffff7b7bba5 in libsamplerate_resample (r=0x7f1610, input=0x7f1758,
in_n_frames=441, output=0x7f1788, out_n_frames=0x7fffee01f3fc) at
pulsecore/resampler.c:1214
#3 0x00007ffff7b7e0b9 in resample (input=0x7f1758, r=0x7f1610) at
pulsecore/resampler.c:1137
#4 pa_resampler_run (r=0x7f1610, in=0x7fffee01f550, out=0x7fffee01f570) at
pulsecore/resampler.c:1193
#5 0x00007ffff7b8ac91 in pa_sink_input_peek (i=0x7ece10, slength=17024,
chunk=0x7fffee01f670, volume=0x7fffee01f688) at pulsecore/sink-input.c:875
#6 0x00007ffff7b911aa in fill_mix_info (s=0x68b5f0, length=0x7fffee021d18,
info=0x7fffee01f670, maxinfo=32) at pulsecore/sink.c:913
#7 0x00007ffff7b939d7 in pa_sink_render_into (s=0x68b5f0,
target=0x7fffee021d70) at pulsecore/sink.c:1152
#8 0x00007ffff7b93f29 in pa_sink_render_into_full (s=0x68b5f0,
target=0x7fffee021e00) at pulsecore/sink.c:1236
#9 0x00007fffee044770 in mmap_write (on_timeout=false, polled=false,
sleep_usec=<synthetic pointer>, u=0x6f0b10) at modules/alsa/alsa-sink.c:627
#10 thread_func (userdata=0x6f0b10) at modules/alsa/alsa-sink.c:1639
#11 0x00007ffff7931c78 in ?? () from
/usr/lib/x86_64-linux-gnu/libpulsecommon-1.0.so
#12 0x00007ffff7048efc in start_thread (arg=0x7fffee022700) at
pthread_create.c:304
#13 0x00007ffff66f389d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()
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https://bugs.launchpad.net/bugs/885347
Title:
pulseaudio crashes on resampler.c:1230,
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