From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Bligh Subject: Re: Fatal crash on xen4.2 HVM + qemu-xen dm + NFS Date: Mon, 21 Jan 2013 17:31:52 +0000 Message-ID: References: <5B4525F296F6ABEB38B0E614@nimrod.local> <50CEFDA602000078000B0B11@nat28.tlf.novell.com> <3B1D0701EAEA6532CEA91EA0@Ximines.local> <77822E2DDAEA8F94631B6A52@Ximines.local> <1358781790.3279.224.camel@zakaz.uk.xensource.com> <1358783420.3279.235.camel@zakaz.uk.xensource.com> <1358787073.3279.257.camel@zakaz.uk.xensource.com> Reply-To: Alex Bligh Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1358787073.3279.257.camel@zakaz.uk.xensource.com> Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Ian Campbell Cc: Konrad Wilk , Xen Devel , Alex Bligh , Jan Beulich , Stefano Stabellini List-Id: xen-devel@lists.xenproject.org --On 21 January 2013 16:51:13 +0000 Ian Campbell wrote: >> Right, and I'm pretty sure we're not using O_DIRECT as we're using >> cache=writeback (which is the default). Is there some way to make it >> copy pages? > > Not as far as I know, A thought: would it be possible for testing purposes to replace the grant-map by a grant-copy? How easy would that be? Would that not provide a page with the same lifecycle as a normal dom0 allocated one? -- Alex Bligh