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From: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
To: Andy Whitcroft <apw@shadowen.org>
Cc: Ingo Molnar <mingo@elte.hu>,
	Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>,
	LKML <linux-kernel@vger.kernel.org>,
	torvalds@linux-foundation.org,
	Andrew Morton <akpm@linux-foundation.org>,
	Dmitry Adamushko <dmitry.adamushko@gmail.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Dhaval Giani <dhaval@linux.vnet.ibm.com>
Subject: Re: [BUG] 2.6.23-git8 kernel oops at __rb_rotate_left+0x7/0x70
Date: Wed, 17 Oct 2007 00:12:04 +0530	[thread overview]
Message-ID: <20071016184204.GA19219@linux.vnet.ibm.com> (raw)
In-Reply-To: <20071016180037.GC5670@shadowen.org>

On Tue, Oct 16, 2007 at 07:00:37PM +0100, Andy Whitcroft wrote:
> > ah, this is likely with the recent scheduler commits included as well, 
> > right?
> > 
> > if it's reproducable, could you try with group scheduling disabled, i.e. 
> > with:
> > 
> >   # CONFIG_FAIR_GROUP_SCHED is not set
> > 
> > as that would be the main suspect for such type of a crash.
> 
> Ok, preliminary results with this disabled seem to get us past
> kernbench.  I am rerunning with it enabled to confirm it blammo's.

Andy,
	I have got details from Kamalesh on the machine where this is 
recreatable (we couldn't recreate on other machines). Will start looking
at this tomorrow morning first thing ..

-- 
Regards,
vatsa

  reply	other threads:[~2007-10-16 18:30 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-16  5:25 [BUG] 2.6.23-git8 kernel oops at __rb_rotate_left+0x7/0x70 Kamalesh Babulal
2007-10-16  9:10 ` Ingo Molnar
2007-10-16  9:46   ` Ingo Molnar
2007-10-16 18:00     ` Andy Whitcroft
2007-10-16 18:42       ` Srivatsa Vaddagiri [this message]
2007-10-17  9:07       ` Andy Whitcroft
2007-10-16 10:03   ` Andy Whitcroft
2007-10-17 14:21 ` Ingo Molnar
2007-10-17 14:43   ` Andy Whitcroft
2007-10-17 15:00   ` Srivatsa Vaddagiri
2007-10-17 14:52     ` Ingo Molnar
2007-10-17 15:29       ` Andy Whitcroft

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