linux-kernel - Re: Fan runs full speed after S3 sometimes (regression)

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Date:	Wed, 8 Sep 2010 22:26:24 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Jiri Slaby <jirislaby@...il.com>
Cc:	Pavel Machek <pavel@....cz>, linux-acpi@...r.kernel.org,
	"Linux-pm mailing list" <linux-pm@...ts.linux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: Fan runs full speed after S3 sometimes (regression)

On Wednesday, September 08, 2010, Jiri Slaby wrote:
> Hi.
> 
> On 08/21/2010 07:05 PM, Pavel Machek wrote:
> >>>>> 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.
> >>>
> >>> Well, doing 20 suspends in a row from a script should not be too bad.
> >>
> >> 20 is just a guess. I haven't seen it for pretty few days until the day
> >> before yesterday. And it looks like CPU1 is brought up a half way. When
> >> the fan was at full speed I tried:
> >> echo 0 > /sys/devices/system/cpu/cpu1/online
> >> and whole system freezed. Otherwise this commands succeeds.
> > 
> > Ok, so this looks like the kernel problem, on the other hand. Two
> > different problems?
> 
> Actually, I haven't seen it after an upgrade to the next -mm kernel.
> Consider it as closed as WORKSFORME for now.

Great, thanks fot the update.  Let's hope it was a temporary glitch.

Thanks,
Rafael
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