On Mon, 8 Nov 2010 21:35:19 -0600 JD <jd1008@xxxxxxxxx> wrote: > On 11/08/2010 07:22 PM, Ranjan Maitra wrote: > > On Fri, 5 Nov 2010 18:55:19 -0500 Gordon Messmer<yinyang@xxxxxxxxx> > > wrote: > > > >> On 11/04/2010 05:40 AM, Ranjan Maitra wrote: > >>> I have noticed a strange problem after I come back from hibernate and > >>> upgrade in F14 on my Thinkpad T61. The temperatures are off the charts, > >>> hitting as high as 95C, and staying there, soon after waking up. The > >>> laptop has become unusable, basically. Here is the output of top: the > >>> topmost processes. Note that the laptop has 4 GB of memory, > >>> > >>> 1751 maitra 20 0 422m 2232 964 R 99.7 0.1 22:05.74 pulseaudio > >> It looks like pulseaudio is in some sort of loop. I'd attach strace to > >> it and see what it's doing. The PID is 1751, so you'd do something like: > >> > >> strace -f -s 256 -p 1751 > >> > >> and cancel with Ctrl+C. You'll probably notice that there are sections > >> of output that simply repeat. Send a bit back to the list. It's hard > >> to say whether or not the problem will be apparent, but that'll be a > >> place to start. > >> -- > >> users mailing list > >> users@xxxxxxxxxxxxxxxxxxxxxxx > >> To unsubscribe or change subscription options: > >> https://admin.fedoraproject.org/mailman/listinfo/users > >> Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines > >> > > Hi, > > > > Many thanks for your e-mail. It appears that you are right because the > > following loops incessantly, and only when I go into pm-hibernate, not > > when I go into pm-suspend. > > > > Here is the necessary output: > > > > % top > > > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > > 1589 maitra 9 -11 422m 2176 1048 R 94.9 0.1 8:48.81 pulseaudio > > > > % strace -f -s 256 -p 1589 > > > > The following keeps on scrolling: > > > > [pid 1589] ppoll([{fd=5, events=POLLIN}, {fd=21, events=POLLIN}, {fd=9, events=0}, {fd=4, events=POLLIN}, {fd=20, events=POLLIN}, {fd=26, events=POLLIN}, {fd=31, events=POLLIN|POLLERR|POLLHUP}, {fd=31, events=0}, {fd=30, events=POLLIN}, {fd=29, events=POLLIN}, {fd=22, events=POLLIN}, {fd=25, events=POLLIN}, {fd=16, events=POLLIN}, {fd=19, events=POLLIN}, {fd=15, events=POLLIN|POLLERR|POLLHUP}, {fd=15, events=0}, {fd=14, events=POLLIN}, {fd=13, events=POLLIN}, {fd=7, events=POLLIN}], 19, NULL, NULL, 8) = 1 ([{fd=9, revents=POLLHUP}]) > > > > Killing pulseaudio (the process) seems to take care of it, and the > > temperature cools. > > > > Once again, I am running the F14-LXDE spin. > > > > Many thanks, > > Ranjan > > > Hello Ranjan, > I wrote about the pulseaudio taking 40% of cpu when nothing was playing. > The cause of this constant looping is a bug in the Adobe flash plugin. > Pulseaudio daemon listens on a socket FD for incoming audio. > Each client (such as the adobe flash plugin) is supposed to close > the socket after the media finishes playing. Well, the adobe flash plugin > does not close the socket, causing pulseaudio to be in a tight loop, > polling the socket and finding nothing to process. > > In contradistinction to the Adobe plugin, run > /usr/bin/ffplay -autoexit somefile.mp3 (or any media file). > While the file is being played, you will notice pulseaudio > take a lot of the CPU. Once ffplay exits and closes the audio > socket, pulseaudio will consume a very negligible amount > of cpu, approaching 0%. Interesting, but I do not have flash plugin installed. Ranjan -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
