On Mon, 27.10.08 09:24, Takashi Iwai (tiwai@xxxxxxx) wrote: > > At Sat, 25 Oct 2008 17:14:29 +0200, > Lennart Poettering wrote: > > > > Heya! > > > > There's a apparently a bug in the 'multi' plugin. When it is used it > > will pretty often signal POLLOUT when used with > > snd_pcm_poll_descriptors_revents() and the subsequent call to > > snd_pcm_update_avail() will still return 0. Doesn't look right to me. > > Doesn't look right, indeed. > On which system setup does it happen? That's surround40:0 on SoundBlaster Live. Here's the debug output of PA showing this: https://bugzilla.redhat.com/attachment.cgi?id=321485 (Which belongs to https://bugzilla.redhat.com/show_bug.cgi?id=462200). Ever line saying "ALSA woke us up to write new data to the device, but there was actually nothing to write! Most likely this is an ALSA driver bug. Please report this issue to the PulseAudio developers." is where we get POLLOUT but update_avail() is 0. Looking at it it might actually be the hooks module that is broken, not necessarily "multi". > Can you reproduce it via a combination of dummy driver so that I can > test it on my system, too? Uh. It's not my machine where this happened. But I can try to reproduce that... Lennart -- Lennart Poettering Red Hat, Inc. lennart [at] poettering [dot] net ICQ# 11060553 http://0pointer.net/lennart/ GnuPG 0x1A015CC4 _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
