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Re: [Xen-devel] pv_ops DomU boot problem using pvgrub, xen 3.4.1-rc7, d

To: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] pv_ops DomU boot problem using pvgrub, xen 3.4.1-rc7, debian 2.6.26 dom0
From: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>
Date: Tue, 21 Jul 2009 21:11:35 +0200
Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
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Sander Eikelenboom, le Tue 21 Jul 2009 20:33:24 +0200, a écrit :
> I'm using the 2.6.26-2-xen-amd64 shipped with debian lenny.

Ok. This one has xen barrier support (and advertises it so minios makes
use of it), but maybe the actual backend real block driver doesn't.  To
circumvent it you can comment 

        if (dev->info.barrier == 1)
            blkfront_push_operation(dev, BLKIF_OP_WRITE_BARRIER, 0);

in extras/mini-os/blkfront.c.  That being said, that shouldn't harm the
pv-grub boot, we probably need to have a look at the actual kernel crash


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