Re: next-20130709 DMAR issues

[Li, Zhen-Hua]

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
>
>
> .

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/