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Re: [Xen-devel] build problem in linux-2.6.18-xen.hg?

To: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>, "Xen-Devel (E-mail)" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] build problem in linux-2.6.18-xen.hg?
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Tue, 22 Dec 2009 18:41:10 +0000
Cc: Patrick Colp <pjcolp@xxxxxxxxx>, Grzegorz Milos <gm281@xxxxxxxxx>
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On 22/12/2009 17:04, "Dan Magenheimer" <dan.magenheimer@xxxxxxxxxx> wrote:

> Just ran into this problem trying to build a linux-2.6.18-xen dom0 which
> appears suspiciously related to a recent patch.
> I haven't tried a new clone and build, but did do a make clean.
> I'll try a fresh clone, but that will take hours so thought I would
> report it first.

Fixed by c/s 969, which puts the grant_table.h public header changes
introduced by the paging/sharing patches properly into xen-unstable, and
then syncs them back into linux-2.6.18-xen.

*However*, cc'ing Gregor and Patrick as that raises the question of why this
wasn't noticed sooner. Why do we have grant-table interface extensions being
defined in a guest, but apparently no use of them (and hence no
implementation of them?) in Xen itself? I'm talking about
GNTMAP_can_fail/GNTCOPY_can_fail/GNTST_eagain -- is linux-2.6.18-xen
defining using these just for its own amusement?

 -- Keir

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