bug in the ALSA driver 'snd_usb_audio'

[GitHub issues - opened]

alsa-project/alsa-lib issue #284 was opened from Konfekt:

Hello,

`journalctl -p err` showed the message

```
pulseaudio[15806]: Most likely this is a bug in the ALSA driver 'snd_usb_audio'. Please report this issue to the ALSA developers.
```

Hopefully this bug tracker reaches the ALSA developers?
Here's more output:

```sh
Nov 15 10:28:58 notebook bluetoothd[1340]: src/profile.c:ext_io_disconnected() Unable to get io data for Hands-Free Voice gateway: getpeername: Transport endpoint is not connected (107)
Nov 15 10:28:58 notebook kernel: Bluetooth: hci0: SCO packet for unknown connection handle 6
Nov 15 10:28:58 notebook kernel: Bluetooth: hci0: SCO packet for unknown connection handle 6
Nov 15 10:28:48 notebook pulseaudio[15806]: mSBC decoding error (-2)
Nov 15 10:14:35 notebook pulseaudio[15806]: Playback too far ahead (4591), drop source 1168
Nov 15 10:14:35 notebook pulseaudio[15806]: Doing resync
Nov 15 10:12:28 notebook pulseaudio[15806]: We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail.
Nov 15 10:12:28 notebook pulseaudio[15806]: Most likely this is a bug in the ALSA driver 'snd_usb_audio'. Please report this issue to the ALSA developers.
Nov 15 10:12:28 notebook pulseaudio[15806]: ALSA woke us up to write new data to the device, but there was actually nothing to write.
Nov 15 10:12:26 notebook pulseaudio[15806]: Playback too far ahead (4613), drop source 1176
Nov 15 10:12:26 notebook pulseaudio[15806]: Doing resync
Nov 15 09:33:13 notebook pulseaudio[15806]: Playback too far ahead (2931), drop source 744
Nov 15 09:33:13 notebook pulseaudio[15806]: Doing resync
Nov 15 09:32:29 notebook bluetoothd[1340]: src/profile.c:ext_io_disconnected() Unable to get io data for Hands-Free Voice gateway: getpeername: Transport endpoint is not connected (107)
Nov 15 09:32:24 notebook bluetoothd[1340]: src/profile.c:ext_io_disconnected() Unable to get io data for Hands-Free Voice gateway: getpeername: Transport endpoint is not connected (107)
```

Curiously my bluetooth headset switches off in Zoom after around five minutes and can't be reenabled. In the hope that this error message gives a hint.
Attached further alsa-infos.

[alsa-info.txt.yOxa5XAE9C.txt](https://github.com/alsa-project/alsa-lib/files/10020916/alsa-info.txt.yOxa5XAE9C.txt)

Issue URL     : https://github.com/alsa-project/alsa-lib/issues/284
Repository URL: https://github.com/alsa-project/alsa-lib