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From: Pavel Machek <pavel@ucw.cz>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: linux-pm <linux-pm@lists.osdl.org>,
	linuxppc-dev list <linuxppc-dev@ozlabs.org>
Subject: Re: [linux-pm] windfarm got signal
Date: Thu, 22 Jun 2006 15:12:17 +0200	[thread overview]
Message-ID: <20060622131216.GA2959@openzaurus.ucw.cz> (raw)
In-Reply-To: <1150847482.16662.13.camel@johannes>

Hi!

> after cpu hotplug I decided to write some fake suspend routines for
> ppc64 that always fail to see what all the drivers would say... The
> first thing I saw was during the phase where all threads are stopped,
> that windfarm got a signal!
> 
> Shortly after that, the fans were revved up fully but I guess that's
> expected if the wf control loop exits.
> 
> So now I'm trying to see *why* it got a signal there. Any ideas? Is that
> expected with pm and windfarm just does the wrong thing there by taking
> the signal as a reason to exit the control thread?
> 
> [code in question is windfarm_core.c:wf_thread_func]

See kernel/power/process.c

-- 
64 bytes from 195.113.31.123: icmp_seq=28 ttl=51 time=448769.1 ms         

  parent reply	other threads:[~2006-06-22 19:24 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-06-20 23:51 windfarm got signal Johannes Berg
2006-06-22  6:02 ` Benjamin Herrenschmidt
2006-06-22 11:03   ` [linux-pm] " Rafael J. Wysocki
2006-06-22 11:13     ` Johannes Berg
2006-06-22 11:34       ` Johannes Berg
2006-06-22 12:33         ` Nigel Cunningham
2006-06-27  7:44         ` Benjamin Herrenschmidt
2006-06-27 18:17           ` [PATCH] fix windfarm core thread wrt. signal handling Johannes Berg
2006-06-27 22:07             ` Benjamin Herrenschmidt
2006-06-22 13:12 ` Pavel Machek [this message]
2006-06-23 10:05 ` [PATCH] windfarm: proper try_to_freeze / signal_pending handling Johannes Berg

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