linux-kernel - Re: CONFIG_NO_HZ breaks blktrace timestamps

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Message-ID: <20080111093432.GD8143@elte.hu>
Date:	Fri, 11 Jan 2008 10:34:32 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	David Dillow <dillowda@...l.gov>
Cc:	linux-kernel@...r.kernel.org, linux-btrace@...r.kernel.org,
	mingo@...hat.com, tglx@...utronix.de,
	Jens Axboe <jens.axboe@...cle.com>
Subject: Re: CONFIG_NO_HZ breaks blktrace timestamps


* David Dillow <dillowda@...l.gov> wrote:

> Ingo, Thomas added as I think this is related to 
> sched.c:__update_rq_clock()'s checking for forward time warps.

yep, we've got some fixes in this area. Do blktrace timestamps work fine 
in v2.6.23, with NOHZ?

	Ingo
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