Bugzilla – Bug 558119
pulseaudio eating 100% cpu sometimes
Last modified: 2010-07-21 09:41:48 UTC
User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.4) Gecko/20091016 SUSE/3.5.4-1.1.2 Firefox/3.5.4 pulseaudio sometimes breaks. It would start using 100% cpu, causing any program using it to hang. 'killall pulseaudio' solves the problem for a while. Seems to happen only if two application are using sound at the same time. Reproducible: Sometimes Steps to Reproduce: 1.use two application that uses sound (for example amarok and smplayer) 2. 3. this is the sound card: 00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60) driver is snd_via82xx and after the break /var/log/messages is full of this: Nov 24 18:56:22 snehulienka pulseaudio[24325]: alsa-sink.c: Resume failed, couldn't restore original fragment settings. (Old: 352800/176400, New 2890137600/32768) Nov 24 18:56:22 snehulienka pulseaudio[24325]: alsa-sink.c: Resume failed, couldn't restore original fragment settings. (Old: 352800/176400, New 2890137600/32768)
PA seems not working well with via82xx driver. Could you try tsched=0 option for PA default configuration? In the line of "load module module-udev-detect", add "tsched=0".
No response since months. Re-open once you have the requested information, thanks.