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Message-ID: <20080801211036.GU14851@linux.vnet.ibm.com>
Date:	Fri, 1 Aug 2008 14:10:36 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Suresh Siddha <suresh.b.siddha@...el.com>
Cc:	Vegard Nossum <vegard.nossum@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	the arch/x86 maintainers <x86@...nel.org>
Subject: Re: recent -git: BUG in free_thread_xstate

On Wed, Jul 23, 2008 at 01:31:09PM -0700, Suresh Siddha wrote:
> On Wed, Jul 23, 2008 at 01:07:04PM -0700, Vegard Nossum wrote:
> > Hi,
> > 
> > I just got this on c010b2f76c3032e48097a6eef291d8593d5d79a6 (-git from
> > yesterday):
> 
> Do you see this in 2.6.26 aswell? I suspect it is coming from post 2.6.26
> changes.
> 
> > 
> > BUG: unable to handle kernel paging request at 00664381
> > IP: [<c010b274>] free_thread_xstate+0x4/0x30
> ...
> 
> > EIP is at arch/x86/kernel/process.c:36:
> > 
> >         if (tsk->thread.xstate) {
> > 
> 
> It looks like the kernel stack of that process got corrupted, corrupting the
> task pointer in thread_info. Can you send us your config file?

I would also like to see the config file.

							Thanx, Paul
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