Sam Johnston
2005-May-27 10:00 UTC
[Xen-devel] kernel: attempt to access beyond end of device
Morning all, I received this mail this morning from an admin regarding a xen guest (newlists). It would seem that the filesystem is larger than its container? Before I spend too long looking at it, does anyone have any ideas as to how this may have occurred and how it could be fixed? Kind regards, Sam ========================================---------- Forwarded message ---------- From: <snip> Date: May 26, 2005 10:14 PM Subject: problems with newlists To: Sam Johnston <samjie@gmail.com> Hi Sam, I''m getting the following errors on newlists: May 26 21:08:41 newlists kernel: attempt to access beyond end of device May 26 21:08:41 newlists kernel: sda1: rw=0, want=4294875368, limit=5120000 May 26 21:08:41 newlists kernel: attempt to access beyond end of device May 26 21:08:41 newlists kernel: sda1: rw=0, want=1516641296, limit=5120000 May 26 21:08:41 newlists kernel: attempt to access beyond end of device May 26 21:08:41 newlists kernel: sda1: rw=0, want=2890399776, limit=5120000 May 26 21:08:41 newlists kernel: attempt to access beyond end of device May 26 21:08:41 newlists kernel: sda1: rw=0, want=133959624, limit=5120000 May 26 21:08:58 newlists kernel: attempt to access beyond end of device May 26 21:08:58 newlists kernel: sda1: rw=0, want=4294875368, limit=5120000 May 26 21:08:58 newlists kernel: attempt to access beyond end of device May 26 21:08:58 newlists kernel: sda1: rw=0, want=1516641296, limit=5120000 May 26 21:08:58 newlists kernel: attempt to access beyond end of device May 26 21:08:58 newlists kernel: sda1: rw=0, want=2890399776, limit=5120000 May 26 21:08:58 newlists kernel: attempt to access beyond end of device May 26 21:08:58 newlists kernel: sda1: rw=0, want=133959624, limit=5120000 Could you please have a look and let me know what you think... I''m not hoping for much :-( ======================================== _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Andrew Warfield
2005-May-27 11:29 UTC
Re: [Xen-devel] kernel: attempt to access beyond end of device
The filesystem on the disk thinks that the disk is bigger than the backend domain does. Can you provide some details on the disk that they are trying to mount, like the disk line out of the config file? How was the image that they are trying to mount created? a. On 5/27/05, Sam Johnston <samjie@gmail.com> wrote:> Morning all, > > I received this mail this morning from an admin regarding a xen guest > (newlists). It would seem that the filesystem is larger than its > container? > > Before I spend too long looking at it, does anyone have any ideas as > to how this may have occurred and how it could be fixed? > > Kind regards, > > Sam > > ========================================> ---------- Forwarded message ---------- > From: <snip> > Date: May 26, 2005 10:14 PM > Subject: problems with newlists > To: Sam Johnston <samjie@gmail.com> > > > Hi Sam, > > I''m getting the following errors on newlists: > > May 26 21:08:41 newlists kernel: attempt to access beyond end of device > May 26 21:08:41 newlists kernel: sda1: rw=0, want=4294875368, > limit=5120000 > May 26 21:08:41 newlists kernel: attempt to access beyond end of device > May 26 21:08:41 newlists kernel: sda1: rw=0, want=1516641296, > limit=5120000 > May 26 21:08:41 newlists kernel: attempt to access beyond end of device > May 26 21:08:41 newlists kernel: sda1: rw=0, want=2890399776, > limit=5120000 > May 26 21:08:41 newlists kernel: attempt to access beyond end of device > May 26 21:08:41 newlists kernel: sda1: rw=0, want=133959624, > limit=5120000 > May 26 21:08:58 newlists kernel: attempt to access beyond end of device > May 26 21:08:58 newlists kernel: sda1: rw=0, want=4294875368, > limit=5120000 > May 26 21:08:58 newlists kernel: attempt to access beyond end of device > May 26 21:08:58 newlists kernel: sda1: rw=0, want=1516641296, > limit=5120000 > May 26 21:08:58 newlists kernel: attempt to access beyond end of device > May 26 21:08:58 newlists kernel: sda1: rw=0, want=2890399776, > limit=5120000 > May 26 21:08:58 newlists kernel: attempt to access beyond end of device > May 26 21:08:58 newlists kernel: sda1: rw=0, want=133959624, > limit=5120000 > > Could you please have a look and let me know what you think... I''m > not hoping for much :-( > ========================================> > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel >_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Ian Pratt
2005-May-27 16:43 UTC
RE: [Xen-devel] kernel: attempt to access beyond end of device
> I received this mail this morning from an admin regarding a > xen guest (newlists). It would seem that the filesystem is > larger than its container? > > Before I spend too long looking at it, does anyone have any > ideas as to how this may have occurred and how it could be fixed?The accesses seem to be way, way, beyond the end of the device e.g. want=4294875368, limit=5120000. I forget what the units are, but this doesn''t look good. Is this an LVM volume? has it been resized? What does blockdev --getsize show for the volume? Does it agree with the lvm tools? Ian> Kind regards, > > Sam > > ========================================> ---------- Forwarded message ---------- > From: <snip> > Date: May 26, 2005 10:14 PM > Subject: problems with newlists > To: Sam Johnston <samjie@gmail.com> > > > Hi Sam, > > I''m getting the following errors on newlists: > > May 26 21:08:41 newlists kernel: attempt to access beyond end > of device May 26 21:08:41 newlists kernel: sda1: rw=0, > want=4294875368, limit=5120000 May 26 21:08:41 newlists > kernel: attempt to access beyond end of device May 26 > 21:08:41 newlists kernel: sda1: rw=0, want=1516641296, > limit=5120000 May 26 21:08:41 newlists kernel: attempt to > access beyond end of device May 26 21:08:41 newlists kernel: > sda1: rw=0, want=2890399776, limit=5120000 May 26 21:08:41 > newlists kernel: attempt to access beyond end of device May > 26 21:08:41 newlists kernel: sda1: rw=0, want=133959624, > limit=5120000 May 26 21:08:58 newlists kernel: attempt to > access beyond end of device May 26 21:08:58 newlists kernel: > sda1: rw=0, want=4294875368, limit=5120000 May 26 21:08:58 > newlists kernel: attempt to access beyond end of device May > 26 21:08:58 newlists kernel: sda1: rw=0, want=1516641296, > limit=5120000 May 26 21:08:58 newlists kernel: attempt to > access beyond end of device May 26 21:08:58 newlists kernel: > sda1: rw=0, want=2890399776, limit=5120000 May 26 21:08:58 > newlists kernel: attempt to access beyond end of device May > 26 21:08:58 newlists kernel: sda1: rw=0, want=133959624, limit=5120000 > > Could you please have a look and let me know what you > think... I''m not hoping for much :-( > ========================================> > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel >_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Sam Johnston
2005-May-27 16:47 UTC
Re: [Xen-devel] kernel: attempt to access beyond end of device
Actually, yes - it is an LVM volume. Sorry - I should have specified that before. We''ll have a closer look at the LVM config and see if we can''t work out what''s up. sj On 5/27/05, Ian Pratt <m+Ian.Pratt@cl.cam.ac.uk> wrote:> > > I received this mail this morning from an admin regarding a > > xen guest (newlists). It would seem that the filesystem is > > larger than its container? > > > > Before I spend too long looking at it, does anyone have any > > ideas as to how this may have occurred and how it could be fixed? > > The accesses seem to be way, way, beyond the end of the device e.g. > want=4294875368, limit=5120000. > > I forget what the units are, but this doesn''t look good. > > Is this an LVM volume? has it been resized? What does blockdev --getsize > show for the volume? Does it agree with the lvm tools? > > Ian > > > > > Kind regards, > > > > Sam > > > > ========================================> > ---------- Forwarded message ---------- > > From: <snip> > > Date: May 26, 2005 10:14 PM > > Subject: problems with newlists > > To: Sam Johnston <samjie@gmail.com> > > > > > > Hi Sam, > > > > I''m getting the following errors on newlists: > > > > May 26 21:08:41 newlists kernel: attempt to access beyond end > > of device May 26 21:08:41 newlists kernel: sda1: rw=0, > > want=4294875368, limit=5120000 May 26 21:08:41 newlists > > kernel: attempt to access beyond end of device May 26 > > 21:08:41 newlists kernel: sda1: rw=0, want=1516641296, > > limit=5120000 May 26 21:08:41 newlists kernel: attempt to > > access beyond end of device May 26 21:08:41 newlists kernel: > > sda1: rw=0, want=2890399776, limit=5120000 May 26 21:08:41 > > newlists kernel: attempt to access beyond end of device May > > 26 21:08:41 newlists kernel: sda1: rw=0, want=133959624, > > limit=5120000 May 26 21:08:58 newlists kernel: attempt to > > access beyond end of device May 26 21:08:58 newlists kernel: > > sda1: rw=0, want=4294875368, limit=5120000 May 26 21:08:58 > > newlists kernel: attempt to access beyond end of device May > > 26 21:08:58 newlists kernel: sda1: rw=0, want=1516641296, > > limit=5120000 May 26 21:08:58 newlists kernel: attempt to > > access beyond end of device May 26 21:08:58 newlists kernel: > > sda1: rw=0, want=2890399776, limit=5120000 May 26 21:08:58 > > newlists kernel: attempt to access beyond end of device May > > 26 21:08:58 newlists kernel: sda1: rw=0, want=133959624, limit=5120000 > > > > Could you please have a look and let me know what you > > think... I''m not hoping for much :-( > > ========================================> > > > _______________________________________________ > > Xen-devel mailing list > > Xen-devel@lists.xensource.com > > http://lists.xensource.com/xen-devel > > >_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
On Fri, May 27, 2005 at 05:47:07PM +0100, Sam Johnston wrote:> Actually, yes - it is an LVM volume. Sorry - I should have specified > that before. We''ll have a closer look at the LVM config and see if we > can''t work out what''s up.I''ve seen this happen in dom0 with LVM but only with snapshots, and the problem only seemed to manifest itself in domain0, when i reexported the snapshot to a xenlinux instance i was able to tar it all up. I was also able to dd if=/dev/vg-disk/snapshot of=/dev/vg-disk/notasnaphsotofthesamesae Without any beyond end of device errors. My domain0 is running 2.6.11.7, built with a snapshot from xen-2.0-testing but with Xen 2.0.5. Wm _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel