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Subject: Re: [3.0 regression] DMAR faults in iwlagn
From: wwguy <wey-yi.w.guy@intel.com>
To: Andrew Lutomirski <luto@mit.edu>
Cc: "ilw@linux.intel.com" <ilw@linux.intel.com>,
	"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
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Date: Mon, 20 Jun 2011 12:06:57 -0700
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On Mon, 2011-06-20 at 11:44 -0700, Andrew Lutomirski wrote:
> On 3.0-git today, I get:
> 
> [   40.142872] DRHD: handling fault status reg 2
> [   40.142892] DMAR:[DMA Write] Request device [03:00.0] fault addr ffe38000
> [   40.142896] DMAR:[fault reason 05] PTE Write access is not set
> 
> lspci says:
> 
> 03:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35)
> 
> This seems to be triggered by interface state changes.  The driver
> still works.  I don't see this on 2.6.39.1.
> 
can I got more information. which repo you are using?
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git

Can you provide full log?

Thanks
Wey