From: Ingo Molnar <mingo@elte.hu>
To: Nick Piggin <npiggin@suse.de>
Cc: venkatesh.pallipadi@intel.com,
Suresh Siddha <suresh.b.siddha@intel.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: x86 warnings in arch/x86/mm/pageattr.c:560
Date: Wed, 21 Jan 2009 12:28:35 +0100 [thread overview]
Message-ID: <20090121112835.GF23469@elte.hu> (raw)
In-Reply-To: <20090120091837.GC19505@wotan.suse.de>
* Nick Piggin <npiggin@suse.de> wrote:
> Hi,
>
> I've been getting this warning intermittently since the merge window
> opened. Considering that track_pfn_vma_new is called before the ptes
> are set up in remap_pfn_range (and remap_pfn_range contains a warning
> if the ptes *are* nonzero), I don't know how this is supposed to work?
>
> Anyway, I can of course test patches.
>
> ------------[ cut here ]------------
> WARNING: at arch/x86/mm/pageattr.c:560 __change_page_attr_set_clr+0x9ef/0xa00()
> Hardware name: empty
> CPA: called for zero pte. vaddr = ffff8800cff4e000 cpa->vaddr = ffff8800cff4e000
Ok, i have just queued up a fix that could address this - could you please
try latest tip/master:
http://people.redhat.com/mingo/tip.git/README
does it still produce that warning?
Ingo
prev parent reply other threads:[~2009-01-21 11:28 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-20 9:18 x86 warnings in arch/x86/mm/pageattr.c:560 Nick Piggin
2009-01-21 11:28 ` Ingo Molnar [this message]
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