Dear Mark Thank you for your advice. > Underrun means that the driver is consuming data more quickly than aplay > is able to provide it. This may mean that there's some system > performance problem or it may be due to your driver is consuming data > more quickly than it should and causing problems further up the stack. I could understand. I will re-check my code, system and more. Thank you > > o sometimes BUG_ON is called when I use kmalloc on (snip) > You shouldn't be using kmalloc() there, no - the trigger function is > called from an atomic context where only very limited memory allocation > is possible. Hmm. OK. Thank you. The driver that I referred have used kmalloc on trigger funtion. Maybe it have same bug =). > I'll have a look at your code, but it's likely to be a few days before I > have time to do so. Thank you very much. Best regards -- Kuninori Morimoto _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
