Bug#596419: Acknowledgement (xen-linux-system-2.6.32-5-xen-amd64: causes a system hangup by the shutdown of the system, aacraid (sw raid) involved in hangup)

["Artur Linhart - Linux communication" <AL.LINUX@bcpraha.com>]

Additional info:

Downgrading of the package and kernel image to 2.6.35-18 did not helped, 
Running of
/etc/init.d/xendomains stop 
Still brought an error, containing also following message:

kernel bug .... ..../source_amd_xen/drivers/scsi/aacraid/aachba.c:2825!

(the dots were not there, there was some other text).

Also other downgrades of the hypervisor or qemu-dm did not help.

The problem can be also caused by the heavy load of the sw raid - because of
the previous crashes, the raid arrays have been under sync if the next
crashes happened. The script xendomains suspends the instances to the disk
(it is cca 2,5 GB of data), so possible cause could be the heavy load caused
by the virtual domain suspension combined with the running resync of the
mdadm array.

After the array is fully resynced, I try it again with the downgraded mdadm