[alsa-devel] snd-usb-audio dying on jackd xruns

Clemens Ladisch clemens at ladisch.de
Wed Feb 2 18:33:04 CET 2011

Rods Bobavich wrote:
> So I start jackd and it runs fine for a while. Then ALSA crashes and
> triggers an xrun. Jackd continues to do its merry thing - minus the part
> about spitting info out to my soundcard...
> At first I thought this was a Jackd issue but when I looked deeper it seems
> to be ALSA. Once this happens I cannot restart jackd and resume an audio
> session. In fact, I cannot even rmmod snd-usb-audio. Sometimes I cannot
> lsusb. So it looks like something is getting seriously hosed!

Looks like a bug in the USB controller driver, probably triggered by some
unexpected behaviour of your USB controller.

When this happens, are there any error messages in the system log?


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