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[clubsoda <374002@xxxxxxxxxxxxxxxxxx>]

Still present on Maverick 10.10 with 2.6.35-24-generic and pulseaudio
1:0.9.22~0.9.21+stable-queue-32-g8478-0ubuntu21.1 (maverick-updates).

This appears to be a clever pulseaudio bug which causes alsa-util.c to
blame whichever ALSA module you're using! :)

I can trigger this bug by busying the CPU while playing a video with
vlc. I guess the underlying cause is a buffer underflow.

> Pulseaudio will at some point run at 100% CPU, then crash...
I wish pulseaudio would crash here, because it is hard to kill while it is sapping 100% CPU and thrashing the hard drive. The cold reset button begins to look attractive. Very "alpha testing" feel. :(


Maintainers, please note that redhat-bugs #497636 listed above is marked as CLOSED WONTFIX due to Fedora 11 end-of-life. A similar issue, redhat-bugs #506075 was indicated CLOSED NEXTRELEASE as of October 2009, and yet the problem remains (or has come back).

Cheers.

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https://bugs.launchpad.net/bugs/374002

Title:
  [snd_usb_audio] snd_pcm_avail() returned a value that is exceptionally large