Re: [alsa-devel] Assert in pcm_params.c

2014-02-18 4:56 GMT+08:00 Alan Horstmann gineera@aspect135.co.uk:

Hi,

I am trying to assist in a case that is getting this assert:-

pcm_params.c:2249: snd1_pcm_hw_params_slave: Assertion `err >= 0' failed.

and wondered if anyone could shed some light on what is likely to cause that, and whether it indicates an underlying fault?

you need to know which plugin is used ?

this occur when error return by snd_pcm_xxxxxx_hw_refine_schange in the plugin

e.g. route plugin in

https://bugzilla.redhat.com/show_bug.cgi?id=1051884

The system (not mine) runs Linux Mint 13 (kernel 3.2.0) with PulseAudio, and we are debugging weird behaviour during Portaudio initialisation. It is struggling to get consistent access to the Alsa devices, often retrying many times.