Fan runs full speed after S3 sometimes (regression)
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From: Jiri Slaby on 10 Aug 2010 07:30 Hi, till I was running on 2.6.34-rc5-mm1 (mmotm) and earlier everything was fine. Now, I'm running 2.6.35-rc6-mm1 (.35-rc5-mm1 was the same) and sometimes when the computer (desktop) returns from S3, the CPU fan is running at full speed making a big noise. I don't know how to debug that. Bisection is out of question -- it happens once in 10 or 20 cases. There are no fan entries in /sys. The load is as follows: $ while :; do cat /proc/loadavg; sleep 3; done 0.37 0.33 0.32 1/325 21358 0.42 0.34 0.32 1/325 21362 0.42 0.34 0.32 1/326 21366 0.38 0.33 0.32 1/330 21386 0.38 0.33 0.32 1/331 21391 0.35 0.33 0.32 1/331 21394 0.32 0.32 0.32 1/331 21397 0.32 0.32 0.32 1/331 21400 0.30 0.32 0.32 1/331 21403 .... I can boot into 34-rc5 to compare that if this is of relevance. 290 kB kernel log since boot over several S3 sleep till now where the fan is noisy: http://www.fi.muni.cz/~xslaby/sklad/panics/boot.msg-fan_fullspeed Should you need DSDT, it's there too: http://www.fi.muni.cz/~xslaby/sklad/panics/DSDT Any ideas what could have caused this? thanks, -- js -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
From: Jiri Slaby on 10 Aug 2010 14:40
On 08/10/2010 01:20 PM, Jiri Slaby wrote: > Hi, > > till I was running on 2.6.34-rc5-mm1 (mmotm) and earlier everything was > fine. Now, I'm running 2.6.35-rc6-mm1 (.35-rc5-mm1 was the same) and > sometimes when the computer (desktop) returns from S3, the CPU fan is > running at full speed making a big noise. Just to add, full power cycle is needed to get rid of that. Warm reboot is not enough. > I don't know how to debug that. Bisection is out of question -- it > happens once in 10 or 20 cases. There are no fan entries in /sys. > > The load is as follows: > $ while :; do cat /proc/loadavg; sleep 3; done > 0.37 0.33 0.32 1/325 21358 > 0.42 0.34 0.32 1/325 21362 > 0.42 0.34 0.32 1/326 21366 > 0.38 0.33 0.32 1/330 21386 > 0.38 0.33 0.32 1/331 21391 > 0.35 0.33 0.32 1/331 21394 > 0.32 0.32 0.32 1/331 21397 > 0.32 0.32 0.32 1/331 21400 > 0.30 0.32 0.32 1/331 21403 > ... > > I can boot into 34-rc5 to compare that if this is of relevance. > > 290 kB kernel log since boot over several S3 sleep till now where the > fan is noisy: > http://www.fi.muni.cz/~xslaby/sklad/panics/boot.msg-fan_fullspeed > > Should you need DSDT, it's there too: > http://www.fi.muni.cz/~xslaby/sklad/panics/DSDT > > Any ideas what could have caused this? > > thanks, -- js -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |