linux-kernel - Re: [2.6.18-rt7] BUG: time warp detected!

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Message-Id: <1161929321.6102.2.camel@Homer.simpson.net>
Date:	Fri, 27 Oct 2006 06:08:41 +0000
From:	Mike Galbraith <efault@....de>
To:	john stultz <johnstul@...ibm.com>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [2.6.18-rt7] BUG: time warp detected!

On Fri, 2006-10-27 at 05:45 +0000, Mike Galbraith wrote:
> On Thu, 2006-10-26 at 14:25 -0700, john stultz wrote:
> > On Thu, 2006-10-26 at 07:20 +0000, Mike Galbraith wrote:
> > > $subject happened on my single P4/HT box sometime after resume from
> > > disk.  Hohum activity:  I had just read lkml and was retrieving latest
> > > glibc snapshot when I noticed the trace.  I also noticed that the kernel
> > > decided to use pit instead of tsc.
> > 
> > Huh. Was the PIT selected before or after the resume from disk?
> 
> Both.  If I don't specify tsc, it chooses pit.  I just removed freshly
> added clocksource=tsc, rebooted, and I'm back on pit again.

(hm. virgin 2.6.18 selects tsc properly... will rummage through rt7)

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