linux-kernel - Re: [patch] CFS scheduler, -v12

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Message-ID: <20070530044201.GF3693@linux-os.sc.intel.com>
Date:	Tue, 29 May 2007 21:42:01 -0700
From:	"Siddha, Suresh B" <suresh.b.siddha@...el.com>
To:	Peter Williams <pwil3058@...pond.net.au>
Cc:	"Siddha, Suresh B" <suresh.b.siddha@...el.com>,
	Ingo Molnar <mingo@...e.hu>,
	Nick Piggin <nickpiggin@...oo.com.au>,
	Con Kolivas <kernel@...ivas.org>,
	Christoph Lameter <clameter@....com>,
	Dmitry Adamushko <dmitry.adamushko@...il.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [patch] CFS scheduler, -v12

On Tue, May 29, 2007 at 07:18:18PM -0700, Peter Williams wrote:
> Siddha, Suresh B wrote:
> > I can try 32-bit kernel to check.
> 
> Don't bother.  I just checked 2.6.22-rc3 and the problem is not present
> which means something between rc2 and rc3 has fixed the problem.  I hate
> it when problems (appear to) fix themselves as it usually means they're
> just hiding.
> 
> I didn't see any patches between rc2 and rc3 that were likely to have
> fixed this (but doesn't mean there wasn't one).  I'm wondering whether I
> should do a git bisect to see if I can find where it got fixed?
> 
> Could you see if you can reproduce it on 2.6.22-rc2?

No. Just tried 2.6.22-rc2 64-bit version at runlevel 3 on my remote
system at office. 15 attempts didn't show the issue.

Sure that nothing changed in your test setup?

More experiments tomorrow morning..

thanks,
suresh
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