linux-kernel - Re: soft lockup - CPU#1 stuck for 15s! [swapper:0]

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Message-ID: <2003594310-1197240184-cardhu_decombobulator_blackberry.rim.net-1791217838-@bxe019.bisx.prod.on.blackberry>
Date:	Sun, 9 Dec 2007 22:42:39 +0000
From:	parag.warudkar@...il.com
To:	"Arjan van de Ven" <arjan@...radead.org>
Cc:	"Ingo Molnar" <mingo@...e.hu>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>,
	"LKML" <linux-kernel@...r.kernel.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>
Subject: Re: soft lockup - CPU#1 stuck for 15s! [swapper:0]


>starts to sound like something is >turning off the clock during a >somewhat deeper C-state...

Sure may be - powertop is behind all this - if there wasn't long lasting deep c-state we wouldn't have this problem :) 

Actually I run powertop and disable things until the machine goes into around 5-6 wakeups per second. So what you said is quite likely.

Thanks for powertop.

Parag
Sent via BlackBerry from T-Mobile

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