Hello: I have been running a simple live stream using a Raspberry Pi2 and Liquidsoap, streaming to a local Icecast server and archiving to wav, using a Lexicon Alpha (class compliant USB audio device) problem free, until I recently switched to a Behringer UMC204. In order to make the UMC204 work on the Pi, I added dwc_otg.fiq_fsm_enable=0 to cmdline.txt. This is apparently a known fix for many CS-based audio interfaces, such as the Behringer UMC line, Focusrite Scarlets, Presonus Audiobox, etc. I also had to export AUDIODRIVER=alsa and AUDIODEV=hw:1,0 to my environment, which I didn't have to do with the Alpha, at least for use with Liquidsoap. In Liquidsoap itself, I am addressing the device as plughw:1,0.
Everything works, but after roughly 24 hours of running, Liquidsoap segfaults on something that looks like it is related to alsa. Here are some lines from the log before it crashes. 2016/03/13 20:00:00 [/mnt/archive/stream/%Y/%m/%Y-%m-%d-%H-%M-%S(dot)wav:3] Re-opening output pipe... 2016/03/13 20:02:13 [input.alsa_4881:2] Overrun! 2016/03/13 20:02:13 [input.alsa_4881:2] Trying to recover.. 2016/03/13 20:05:36 [input.alsa_4881:2] Overrun! 2016/03/13 20:05:36 [input.alsa_4881:2] Trying to recover.. 2016/03/13 20:06:14 [input.alsa_4881:2] Overrun! 2016/03/13 20:06:14 [input.alsa_4881:2] Trying to recover.. 2016/03/13 20:06:14 [out_ic_mp3:2] Error while sending data: could not write data to host: Broken pipe in write()! I have a CPU intensive task that runs at 3 minutes past the top of the hour, and most of these alsa overruns seem to happen between 5 and 6 minutes after, while the task is still running. So, aside from not running this job (which would probably help,) can I increase alsa.buffer_length to something reasonable to perhaps make this less of an issue? I'm really not very familiar with alsa in general, so don't know what constitutes "reasonable" in this case. ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785231&iu=/4140 _______________________________________________ Savonet-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/savonet-users
