linux-kernel - Re: [mmotm] Backtrace __change_page_attr_set

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Message-Id: <1233079374.15801.46.camel@vayu>
Date:	Tue, 27 Jan 2009 10:02:54 -0800
From:	Suresh Siddha <suresh.b.siddha@...el.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	"balbir@...ux.vnet.ibm.com" <balbir@...ux.vnet.ibm.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [mmotm] Backtrace __change_page_attr_set_clr

On Tue, 2009-01-27 at 08:37 -0800, Andrew Morton wrote:
> On Tue, 27 Jan 2009 16:38:23 +0530 Balbir Singh <balbir@...ux.vnet.ibm.com> wrote:
> 
> > Hi, Andrew,
> > 
> > I see the following backtrace with 2009-01-16-16-18
> > 
> > ------------[ cut here ]------------
> > WARNING: at arch/x86/mm/pageattr.c:560
> > __change_page_attr_set_clr+0xdc/0x891()
> > ...
> > CPA: called for zero pte. vaddr = ffff8800cfee2000 cpa->vaddr =
> > ffff8800cfee2000
> OK, thanks.  It looks like you cc'ed the right person ;)
> 
> The code in current linux-next has changed a bit since 16 Jan. 
> Hopefully this warning from dmidecode got fixed.

This is fixed recently. In linus's git, commit
a1e46212a410793d575718818e81ddc442a65283

thanks,
suresh

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