Some more info - just got a hard lockup while playing a game (F4 BMS on wine) due to what looks like the same bug. This is the last entry in syslog before the lockup happened:
Jul 22 23:35:02 blueberry rtkit-daemon[2850]: Supervising 3 threads of 3 processes of 1 users. Jul 22 23:36:37 blueberry pulseaudio[2846]: [alsa-sink] alsa-sink.c: ALSA woke us up to write new data to the device, but there was actually nothing to write! Jul 22 23:36:37 blueberry pulseaudio[2846]: [alsa-sink] alsa-sink.c: Most likely this is a bug in the ALSA driver 'snd_usb_audio'. Please report this issue to the ALSA developers. Jul 22 23:36:37 blueberry pulseaudio[2846]: [alsa-sink] alsa-sink.c: We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail. Jul 22 23:39:49 blueberry kernel: [32399.785562] cannot submit urb (err = -18) Jul 22 23:39:49 blueberry kernel: [32399.785576] cannot submit urb (err = -18) Jul 22 23:39:49 blueberry kernel: [32399.785585] cannot submit urb (err = -18) Jul 22 23:39:49 blueberry kernel: [32399.785592] cannot submit urb (err = -18) Jul 22 23:46:27 blueberry kernel: imklog 5.8.11, log source = /proc/kmsg started. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1191603 Title: raring-updates: regression: 3.8.0-24.35 causes sporadic failure of USB audio devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1191603/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
