From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: Hang when starting a 256GB PV guest. Date: Fri, 09 Jul 2010 10:10:38 +0100 Message-ID: <4C3703AE020000780000A6E7@vpn.id2.novell.com> References: <1278665081.1601.7.camel@redfuture-desktop> <4C37001E020000780000A6C7@vpn.id2.novell.com> <1278666254.1601.9.camel@redfuture-desktop> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <1278666254.1601.9.camel@redfuture-desktop> Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xiaowei.hu@oracle.com Cc: xen-devel List-Id: xen-devel@lists.xenproject.org >>> On 09.07.10 at 11:04, xiaowei hu wrote: > On Fri, 2010-07-09 at 09:55 +0100, Jan Beulich wrote: >> >>> On 09.07.10 at 10:44, xiaowei hu wrote: >> > I was using xen 3.4.0 ,32bit dom0 to do some test on a 1TB memory >> > system.When tring to boot a 256GB PV guest(both EL4 and EL5),it just >> > hang after the domain builder completed it work. >> >=20 >> > Is it tested for 256GB PV guest? Anyone ever do this successfully? = And >> > any suggestions? >>=20 >> Doing this with a 32-bit Dom0 seems odd at best, but it should >> (theoretically) work. Do you see the same with a 64-bit Dom0? >> Did you analyze where the guests hang (i.e. whether their kernel >> has an issue with that amount of memory)? > yes,64-bit Dom0 also has this problem. > Even the pygrub menu did not show up,it hang there. So you say the kernel doesn't even get control? Iirc someone else at Oracle got this to work quite a while ago - you may want to search the xen-devel archives... Jan