From: David Vrabel <david.vrabel@citrix.com>
To: Ian Campbell <Ian.Campbell@citrix.com>
Cc: xen-devel@lists.xenproject.org,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Subject: Re: [PATCH] xen: privcmd: do not return pages which we have failed to unmap
Date: Wed, 4 Dec 2013 16:12:08 +0000 [thread overview]
Message-ID: <529F5458.6020100@citrix.com> (raw)
In-Reply-To: <1386173033.17466.99.camel@kazak.uk.xensource.com>
On 04/12/13 16:03, Ian Campbell wrote:
> Subject: [PATCH] xen: privcmd: do not return pages which we have failed to
> unmap
>
> This failure represents a hypervisor issue, but if it does occur then nothing
> good can come of returning pages which still refer to a foreign owned page
> into the general allocation pool.
>
> Instead we are forced to leak them. Log that we have done so.
>
> The potential for failure only exists for autotranslated guest (e.g. ARM and
> x86 PVH).
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
David
next prev parent reply other threads:[~2013-12-04 16:12 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-04 15:52 [PATCH] xen: privcmd: do not return pages which we have failed to unmap Ian Campbell
2013-12-04 15:58 ` David Vrabel
2013-12-04 16:03 ` Ian Campbell
2013-12-04 16:12 ` David Vrabel [this message]
2013-12-06 17:58 ` Stefano Stabellini
2013-12-06 20:08 ` Konrad Rzeszutek Wilk
2013-12-06 20:43 ` Stefano Stabellini
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