linux-kernel - Re: [6/6] 2.6.21-rc3: known regressions

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Date:	Wed, 14 Mar 2007 12:44:17 +0100
From:	Adrian Bunk <bunk@...sta.de>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Jiri Slaby <jirislaby@...il.com>, Ingo Molnar <mingo@...e.hu>,
	Florian Lohoff <flo@...822.org>
Subject: Re: [6/6] 2.6.21-rc3: known regressions

On Tue, Mar 13, 2007 at 09:46:17PM +0100, Thomas Gleixner wrote:
> On Tue, 2007-03-13 at 13:50 +0100, Adrian Bunk wrote:
> > This email lists some known regressions in Linus' tree compared to 2.6.20.
> > 
> > If you find your name in the Cc header, you are either submitter of one
> > of the bugs, maintainer of an affectected subsystem or driver, a patch
> > of you caused a breakage or I'm considering you in any other way
> > possibly involved with one or more of these issues.
> > 
> > Due to the huge amount of recipients, please trim the Cc when answering.
> > Subject    : Clocksource tsc unstable (delta = -154983451 ns)
> > References : http://lkml.org/lkml/2007/3/9/271
> > Submitter  : Jiri Slaby <jirislaby@...il.com>
> > Status     : unknown
> 
> That's not a regression. That's an informal message, when the TSC
> watchdog detects that the TSC is unreliable. 

Looking at [1], there's also be a probably related "doesn't boot" 
problem.
My first guess would be commit 6bb74df481223731af6c7e0ff3adb31f6442cfcd
"clocksource init adjustments (fix bug #7426)".

Jiri, is the message also present with 2.6.21-rc2 (at a different place 
of the dmesg) for you?

> 	tglx

cu
Adrian

[1] http://lkml.org/lkml/2007/3/13/219

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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