From: "Li, Zhen-Hua" <zhen-hual@hp.com>
To: Joerg Roedel <joro@8bytes.org>
Cc: Ingo Molnar <mingo@kernel.org>,
Valdis Kletnieks <Valdis.Kletnieks@vt.edu>,
David Woodhouse <dwmw2@infradead.org>,
linux-kernel@vger.kernel.org
Subject: Re: next-20130709 DMAR issues
Date: Mon, 15 Jul 2013 10:32:17 +0800 [thread overview]
Message-ID: <51E35F31.1040709@hp.com> (raw)
In-Reply-To: <20130712143122.GF28811@8bytes.org>
I have met a bug with the same error message, its cause was that the bios
did not allocate RMRR/DRHD(can't remember which one) for the device.
Thanks
ZhenHua
On 07/12/2013 10:31 PM, Joerg Roedel wrote:
> Thanks for the heads-up, Ingo.
>
> On Fri, Jul 12, 2013 at 02:14:20PM +0200, Ingo Molnar wrote:
>>> Jul 10 12:20:19 turing-police kernel: [ 0.021583] DMAR:[fault reason 06] PTE Read access is not set
>>>
>>> Now I have 3 extra messages talking about handling a fault status. lspci says 00:1f.2 is:
>>>
>>> 00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
> This could be caused by some change in the SATA driver stack. Maybe a
> DMA buffer is used after unmap or something.
>
>
>>> If this doesn't ring any bells, I'l go do the bisect thing...
> Yes, a bisection would help here, thanks for doing this.
>
>
> Joerg
>
>
> .
>
next prev parent reply other threads:[~2013-07-15 2:32 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-10 17:01 next-20130709 DMAR issues Valdis Kletnieks
2013-07-12 12:14 ` Ingo Molnar
2013-07-12 14:31 ` Joerg Roedel
2013-07-15 2:32 ` Li, Zhen-Hua [this message]
2013-07-16 22:16 ` Valdis.Kletnieks
2013-07-16 22:07 ` Valdis.Kletnieks
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