So the problem was pulseaudio hanging and not respawning because it cannot handle realtime priorities. On September 13, 2021 11:36:59 AM UTC, AreYouLoco? <areyouloco@xxxxxxxxxxxxx> wrote: >I am going to recompile the kernel with options mentioned here: > >https://www.alsa-project.org/main/index.php/XRUN_Debug > >And try to debug why the xrun appears. > >I also checked with buffer size 1024 and exaclty one xrun and then hang repeats. > >On 9/13/21 12:23 PM, AreYouLoco? wrote: >> Hi, >> >> I am using custom build real-time kernel 5.12.2-rt3-fw. JACK with ALSA >> backend on Mackie Onyx 1640i. >> Lenovo Thinkpad T420 with FireWire. Debian Bullseye (11.0 - stable) >> JACKD version 1.9.17. >> I am using 512 samples 3 periods @48kHz. >> >> The problem is that long run playback only around 1h (but the time >> differs), result in >> XRUN detected by JACK logs and the whole audio stops. So I have to >> restart JACK in order to make it work. >> DMESG is silent about that issue. But sometimes I get: >> >> snd_oxfw fw1.0: Detect discontinuity of CIP: E8 00 >> And different hex values there. >> >> Here is interesting part from the log: >> >> Sun Sep 12 22:10:12 2021: Jack: JackRequest::Notification >> Sun Sep 12 22:10:12 2021: Jack: **** alsa_pcm: xrun of at least 0.027 msecs >> Sun Sep 12 22:10:12 2021: Jack: Repreparing capture >> Sun Sep 12 22:10:12 2021: Jack: Repreparing playback >> Sun Sep 12 22:10:12 2021: Jack: ALSA XRun wait_status = 0 >> Sun Sep 12 22:10:12 2021: Jack: JackEngine::ClientNotify: no callback >> for notification = 3 >> Sun Sep 12 22:10:12 2021: Jack: JackEngine::ClientNotify: no callback >> for notification = 3 >> Sun Sep 12 22:10:12 2021: Jack: JackClient::ClientNotify ref = 2 name = >> dbusapi notify = 3 >> Sun Sep 12 22:10:12 2021: Jack: JackClient::kXRunCallback >> Sun Sep 12 22:10:12 2021: Jack: JackEngine::ClientNotify: no callback >> for notification = 3 >> Sun Sep 12 22:10:12 2021: Jack: JackEngine::ClientNotify: no callback >> for notification = 3 >> Sun Sep 12 22:10:12 2021: Jack: JackEngine::ClientNotify: no callback >> for notification = 3 >> Sun Sep 12 22:10:12 2021: Jack: JackEngine::ClientNotify: no callback >> for notification = 3 >> Sun Sep 12 22:10:28 2021: ERROR: ALSA: poll time out, polled for >> 15998655 usecs, Retrying with a recovery, retry cnt = 1 >> Sun Sep 12 22:10:44 2021: ERROR: ALSA: poll time out, polled for >> 15998654 usecs, Retrying with a recovery, retry cnt = 2 >> Sun Sep 12 22:11:00 2021: ERROR: ALSA: poll time out, polled for >> 15998659 usecs, Retrying with a recovery, retry cnt = 3 >> Sun Sep 12 22:11:16 2021: ERROR: ALSA: poll time out, polled for >> 15998649 usecs, Retrying with a recovery, retry cnt = 4 >> >> Anyone have idea what might be the cause of this XRUN? Or how to debug that? >> >> Its reproducible on my setup. Another log catched the same issue: >> >> Sun Sep 12 16:50:44 2021: Jack: **** alsa_pcm: xrun of at least 0.030 msecs >> Sun Sep 12 16:50:44 2021: Jack: Repreparing capture >> Sun Sep 12 16:50:44 2021: Jack: Repreparing playback >> Sun Sep 12 16:50:44 2021: Jack: ALSA XRun wait_status = 0 >> Sun Sep 12 16:50:44 2021: Jack: JackRequest::Notification >> Sun Sep 12 16:50:44 2021: Jack: JackEngine::ClientNotify: no callback >> for notification = 3 >> Sun Sep 12 16:50:44 2021: Jack: JackEngine::ClientNotify: no callback >> for notification = 3 >> Sun Sep 12 16:50:44 2021: Jack: JackClient::ClientNotify ref = 2 name = >> dbusapi notify = 3 >> Sun Sep 12 16:50:44 2021: Jack: JackClient::kXRunCallback >> Sun Sep 12 16:50:44 2021: Jack: JackEngine::ClientNotify: no callback >> for notification = 3 >> Sun Sep 12 16:50:44 2021: Jack: JackEngine::ClientNotify: no callback >> for notification = 3 >> Sun Sep 12 16:50:44 2021: Jack: JackEngine::ClientNotify: no callback >> for notification = 3 >> Sun Sep 12 16:50:44 2021: Jack: JackEngine::ClientNotify: no callback >> for notification = 3 >> Sun Sep 12 16:51:00 2021: ERROR: ALSA: poll time out, polled for >> 15998366 usecs, Retrying with a recovery, retry cnt = 1 >> Sun Sep 12 16:51:16 2021: ERROR: ALSA: poll time out, polled for >> 15998353 usecs, Retrying with a recovery, retry cnt = 2 >> Sun Sep 12 16:51:32 2021: ERROR: ALSA: poll time out, polled for >> 15998352 usecs, Retrying with a recovery, retry cnt = 3 >> Sun Sep 12 16:51:48 2021: ERROR: ALSA: poll time out, polled for >> 15998367 usecs, Retrying with a recovery, retry cnt = 4 >> Sun Sep 12 16:52:04 2021: ERROR: ALSA: poll time out, polled for >> 15998353 usecs, Retrying with a recovery, retry cnt = 5 >> Sun Sep 12 16:52:20 2021: ERROR: ALSA: poll time out, polled for >> 15998371 usecs, Reached max retry cnt = 5, Exiting >> Sun Sep 12 16:52:20 2021: ERROR: JackAudioDriver::ProcessAsync: read >> error, stopping... >> Sun Sep 12 16:52:20 2021: Jack: JackPosixThread::ThreadHandler : exit >> >> I am willing to provide additional info. >> >> Thank you in advance, >> >> AreYouLoco? >> _______________________________________________ >> Linux-audio-dev mailing list >> Linux-audio-dev@xxxxxxxxxxxxxxxxxxxx >> https://lists.linuxaudio.org/listinfo/linux-audio-dev >