From: Keir Fraser <keir.fraser@eu.citrix.com>
To: Bill Burns <bburns@redhat.com>,
xen-devel <xen-devel@lists.xensource.com>
Subject: Re: [PATCH] Allow Hypervisor build with more than 64 CPUs
Date: Sun, 17 Aug 2008 11:23:25 +0100 [thread overview]
Message-ID: <C4CDBAAD.1C384%keir.fraser@eu.citrix.com> (raw)
In-Reply-To: <48A5D863.6000000@redhat.com>
On 15/8/08 20:26, "Bill Burns" <bburns@redhat.com> wrote:
> Trying to build the Xen hypervisor with max_phys_cpus=128
> for x86_64 fails. (Note that this was on a 3.1 base, but
> unstable appears to have the same issue).
>
> There is a build assertion due to the size of
> the page_info structure and the shadow_page_info
> structures get out of sync due to the presence
> of cpumask_t in the page info structure (which
> grows with more than 64 CPUs).
>
> The proposed fix is to tack on the following to
> the end of shadow_page_info structure.
This should be fixed in c/s 18324 by relaxing the BUILD_BUG_ON().
-- Keir
prev parent reply other threads:[~2008-08-17 10:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-15 19:26 [PATCH] Allow Hypervisor build with more than 64 CPUs Bill Burns
2008-08-17 10:23 ` Keir Fraser [this message]
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