Hi, Looking more in depth into the code I understood my problem was between the chair and the computer screen *sigh*. So the code was calling snd_pcm_sw_params_set_stop_threshold which apart from stopping the stream on underruns apparently "eats" the xrun from the kernel tracing perspective. If I comment out this portion of code, I get the EPIPE in snd_pcm_avail_update as well as the xrun events in /sys/kernel/tracing/trace. Thanks a million again to put me on the right track. I've learnt a lot from this exchange. Have a good day, Raphael _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
