Pkg xen devel - Mar 2011 - Xen and LVM, bug at arch/x86/xen/mmu.c:1649?

I have a kernel BUG() most of the time when updating my LVM configuration.

I created a bug report on kernel linux-2.6 package as it looked related to
kernel; but searching through bug reports, it look like it's Xen related.
- No similar bug report about LVM crash for non-xen user
- Other Xen users have similar errors:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=615048
"base: After removing lvm snapshot got kernel BUG at
/build/.../source_amd64_xen/arch/x86/xen/mmu.c:1649!"

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=610812
"linux-image-2.6.32-5-xen-amd64: kernel BUG at
/build/buildd-linux-2.6_2.6.32-29-amd64-xcs37n/.../x86/xen/mmu.c:1649"
Backup with LVM snapshot

My bugreport:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=613073
"linux-image-2.6.32-5-xen-amd64: Kernel BUG while creating LVM snapshot in
Dom0"

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=613634
"linux-image-2.6.32-5-xen-amd64: Using pvcreate on a multipathed iscsi
device
produces a kernel bug"

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=614400
"linux-image-2.6.32-5-xen-amd64: Kernel Crash when initiating lvcreate or
lvremove actions"

Can someone have a look?

-- 
Seb, autocuiseur

On Mon, Mar 21, 2011 at 06:24:15PM +0100, Sebastien Koechlin
wrote:
> I have a kernel BUG() most of the time when updating my LVM configuration.
> 
> I created a bug report on kernel linux-2.6 package as it looked related to
> kernel; but searching through bug reports, it look like it's Xen
related.
> - No similar bug report about LVM crash for non-xen user
> - Other Xen users have similar errors:
> 
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=615048
> "base: After removing lvm snapshot got kernel BUG at
> /build/.../source_amd64_xen/arch/x86/xen/mmu.c:1649!"
> 
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=610812
> "linux-image-2.6.32-5-xen-amd64: kernel BUG at
> /build/buildd-linux-2.6_2.6.32-29-amd64-xcs37n/.../x86/xen/mmu.c:1649"
> Backup with LVM snapshot
> 
> My bugreport:
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=613073
> "linux-image-2.6.32-5-xen-amd64: Kernel BUG while creating LVM
snapshot in
> Dom0"
> 
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=613634
> "linux-image-2.6.32-5-xen-amd64: Using pvcreate on a multipathed iscsi
device
> produces a kernel bug"
> 
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=614400
> "linux-image-2.6.32-5-xen-amd64: Kernel Crash when initiating lvcreate
or
> lvremove actions"
> 
> Can someone have a look?
> 
Hello,

Can you try the latest Debian Squeeze kernel? (2.6.32-31) 
It has some fixes that might/should fix the LVM issue.

Please let us know how it goes..

-- Pasi