[Bug 374002] [NEW] [snd_usb_audio] snd_pcm_avail() returned a value that is exceptionally large

[David Nielsen]

Public bug reported:

i am seeing a Pulseaudio reporting an ALSA bug which also causes it to
crash.

My laptop has Intel HDA built in as well as an external soundblaster card
connected via USB and a mic in the USB webcam. The snd_usb_audio driver here
appears to be causing the problem. The external card is set as the default
playback device and configured for 5.1 analog output.

E: alsa-sink.c: ALSA woke us up to write new data to the device, but there was actually nothing to write!
E: alsa-sink.c: Most likely this is a bug in the ALSA driver 'snd_usb_audio'. Please report this issue to the ALSA developers.
E: alsa-sink.c: We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail.

** Affects: linux-meta (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: linux-meta (Fedora)
     Importance: Unknown
         Status: Unknown

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[snd_usb_audio] snd_pcm_avail() returned a value that is exceptionally large
https://bugs.launchpad.net/bugs/374002
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