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Date: Wed, 16 Sep 2015 17:10:06 -0400
From: Bob Copeland <me@bobcopeland.com>
To: Brady Lyles <lyles.brady@gmail.com>
Cc: linux-wireless@vger.kernel.org
Subject: Re: lenovo t400 atheros ar242x ath5k bug
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(Please don't top-post.  Reordered it somewhat.)

On Wed, Sep 16, 2015 at 02:19:12PM -0600, Brady Lyles wrote:
> wondering if there are any more questions/suggestions to resolve this issue?
> Thank you!
> >
> >> My wild guess (not being too familiar with qubes) is that passthrough is not
> >> working properly -- this:
> >>
> >>> [    5.401276] BUG: unable to handle kernel paging request at ffffc90000900014
> >>> [    5.401287] IP: [<ffffffff81268928>] iowrite32+0x38/0x40
>
> >> ...looks like a pci write to an unusual address.
> >>
> >> What does output of lspci -vnn look like, run as root in the guest?

> > 00:01.0 Ethernet controller [0200]: Qualcomm Atheros AR242x / AR542x
> > Wireless Network Adapter (PCI-Express) [168c:001c] (rev 01)
> >     Subsystem: Qualcomm Atheros Device [168c:0035]
> >     Flags: bus master, fast devsel, latency 0, IRQ 39
> >     Memory at f4300000 (64-bit, non-prefetchable) [size=64K]

(Regarding running inside Qubes / Xen...)

Unfortunately the VM / PCI passthrough stuff is outside my small area of
expertise, perhaps someone else knows?

-- 
Bob Copeland %% http://bobcopeland.com/