Pkg xen devel - Jun 2007 - Bug#428685: kernel bugs when running xen in HVM mode

Hi,

have you tried to set dom0 memory to a fixed value? Perhaps the explanation in 
this bug could help:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=414040

The message "Error: Device 5696 (vbd) could not be connected. Backend
device
not found." can occur if the device is (still) in use. I've found this 
sometimes if a domU was not normally shutdown.
Possible solutions:
+ kill processe(s) accessing this device
+ restart xend
+ if a block device has really a problem (io blocking) you have to reboot


-- 
greetings

eMHa
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