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[Xen-devel] Re: [PATCH] pv-grub: fix boot crash when no fb is available

from [Jeremy Fitzhardinge] [Permanent Link][Original]
To: "David P. Quigley" <dpquigl@xxxxxxxxxxxxx>
Subject: [Xen-devel] Re: [PATCH] pv-grub: fix boot crash when no fb is available
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Tue, 06 Apr 2010 12:17:55 -0700
Cc: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, Ian Campbell <Ian.Campbell@xxxxxxxxxx>, Daniel Stodden <daniel.stodden@xxxxxxxxxx>
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On 04/06/2010 11:22 AM, David P. Quigley wrote:

I'm under the impression that if you just do tap:aio it instantiates a
blktap device not a blktap2 device. There are definitely different
blktap controller classes in xend which handle entries using tapdisk and
ones just using tap.
The pvops dom0 doesn't have blktap support, only blktap2 (unless blktap2 does a back-compat thing?). Or maybe it falls back to plain blkback? 

    J

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