Date: Sun, 22 Aug 2010 23:48:18 -0700 From: Doug Barton <dougb@FreeBSD.org> To: Andriy Gapon <avg@icyb.net.ua> Cc: freebsd-current@FreeBSD.org Subject: Re: runaway intr problems: powerd and/or hw.acpi.cpu.cx_lowest related Message-ID: <4C7219B2.4070303@FreeBSD.org> In-Reply-To: <4C721334.1050000@icyb.net.ua> References: <4C71E858.90009@FreeBSD.org> <4C721334.1050000@icyb.net.ua>
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On 08/22/2010 23:20, Andriy Gapon wrote: > on 23/08/2010 06:17 Doug Barton said the following: > >> http://people.freebsd.org/~dougb/intr-out-3.txt > > So, hm, npviewer.bin eats all the CPU time? No, the odd bits of that one are the fact that the intr threads irq17, irq256, and irq20; are showing up at all, and/or showing up with more than a fraction of a percent of cpu time. Usually they don't, and the fact that they did at that point in time was indicative of the fact that the "runaway intr" problem was happening. _Incidentally_ npviewer.bin was taking up more cpu than it usually does, but I think that's another symptom of the underlying problem. Here is a typical, non-problematic top output while running a flash video: last pid: 10841; load averages: 0.22, 0.12, 0.19 up 0+04:15:49 23:46:11 171 processes: 3 running, 148 sleeping, 20 waiting CPU 0: 14.8% user, 0.0% nice, 3.1% system, 0.0% interrupt, 82.0% idle CPU 1: 18.8% user, 0.0% nice, 0.0% system, 0.0% interrupt, 81.3% idle Mem: 342M Active, 1397M Inact, 168M Wired, 49M Cache, 112M Buf, 45M Free Swap: 1024M Total, 1444K Used, 1022M Free PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND 10 root 171 ki31 0K 16K CPU0 0 203:29 82.86% {idle: cpu0} 10 root 171 ki31 0K 16K RUN 1 191:24 81.05% {idle: cpu1} 10813 dougb 54 0 420M 78196K select 0 0:18 17.77% npviewer.bin 10822 dougb 47 0 420M 78196K futex 1 0:05 6.30% npviewer.bin 10839 dougb 45 0 420M 78196K futex 1 0:03 3.66% npviewer.bin 10840 dougb 45 0 420M 78196K futex 1 0:03 3.66% npviewer.bin 10832 dougb 45 0 420M 78196K pcmwrv 1 0:03 2.88% npviewer.bin 1598 dougb 44 0 163M 142M select 1 12:06 1.56% Xorg 11 root -68 - 0K 160K WAIT 1 1:10 0.49% {irq17: wpi0} 10770 dougb 44 0 178M 136M ucond 0 0:00 0.39% {firefox-bin} 10770 dougb 45 0 178M 136M select 1 0:15 0.29% {initial thread 11 root -80 - 0K 160K WAIT 0 0:45 0.10% {irq256: hdac0} I really wish people would stop focusing on flash here. :) It's simply the easiest and most consistent way that I have triggered this problem, it's not the only one. Doug -- Improve the effectiveness of your Internet presence with a domain name makeover! http://SupersetSolutions.com/ Computers are useless. They can only give you answers. -- Pablo Picasso
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