From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sander Eikelenboom Subject: Re: Re: 2.6.37-rc1 mainline domU - BUG: unable to handle kernel paging request Date: Sun, 14 Nov 2010 17:56:48 +0100 Message-ID: <1835258992.20101114175648@eikelenboom.it> References: <20101112170143.GC10339@dumpdata.com> <503106.98736.qm@web56107.mail.re3.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <503106.98736.qm@web56107.mail.re3.yahoo.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Boris Derzhavets Cc: Jeremy Fitzhardinge , xen-devel@lists.xensource.com, Bruce Edge , Konrad Rzeszutek Wilk List-Id: xen-devel@lists.xenproject.org Hmmm have you tried do do a lot of I/O with something else as NFS ? That would perhaps pinpoint it to NFS doing something not completely compat= ible with Xen. I'm not using NFS (I still use file: based guests, and i use glusterfs (fus= e based userspace cluster fs) to share diskspace to domU's via ethernet). I tried NFS in the past, but had some troubles setting it up, and even more= problems with disconnects. I haven't seen any "unable to handle page request" problems with my mix of = guest kernels, which includes some 2.6.37-rc1 kernels. -- Sander Sunday, November 14, 2010, 5:37:59 PM, you wrote: > I've tested F14 DomU (kernel vmlinuz-2.6.37-0.1.rc1.git8.xendom0.fc14.x86= _64) as NFS client and Xen 4.0.1 F14 Dom0 (kernel vmlinuz-2.6.32.25-172.xen= dom0.fc14.x86_64) as NFS server . Copied 700 MB ISO images from NFS folder = at Dom0 to DomU and scp'ed them back to Dom0. During about 30 - 40 min DomU= ran pretty stable , regardless kernel crash as "unable to handle page requ= est" was reported once by F14 DomU, but it didn't actually crash DomU. Same= excersises with replacement F14 by Ubuntu 10.04 Server results DomU crash = in about several minutes. Dom0's instances dual boot on same development bo= x ( Q9500,ASUS P5Q3,8GB) > Boris. > --- On Fri, 11/12/10, Konrad Rzeszutek Wilk wrot= e: > From: Konrad Rzeszutek Wilk > Subject: Re: [Xen-devel] Re: 2.6.37-rc1 mainline domU - BUG: unable to ha= ndle kernel paging request > To: "Sander Eikelenboom" > Cc: "Boris Derzhavets" , xen-devel@lists.xensource= .com, "Bruce Edge" , "Jeremy Fitzhardinge" > Date: Friday, November 12, 2010, 12:01 PM > On Fri, Nov 12, 2010 at 05:27:43PM +0100, Sander Eikelenboom wrote: >> Hi Bruce, >>=20 >> Perhaps handpick some kernels before and after the pulls of the xen patc= hes (pv-on-hvm etc) to begin with ? >> When you let git choose, especially with rc-1 kernels, you will end up w= ith kernels in between patch series, resulting in panics. > Well, just the bare-bone boot of PV guests with nothing fancy ought to wo= rk. > But that is the theory and .. >> > The git bisecting is slow going. I've never tried that before and I'm = a git >> > rookie. >> > I picked 2.6.36 - 2.6.37-rc1 as the bisect range and my first 2 bisect= s all >> > panic at boot so I'm obviously doing something wrong. >> > I'll RTFM a bit more and keep at it. > .. as Bruce experiences this is not the case. Hmm.. > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel > =20 --=20 Best regards, Sander mailto:linux@eikelenboom.it