Kernel fails, "close blk: backend at /local/domain/0/..

Hi,

My newly build kernel (2.6.30.4–grsec, under pv_grub-64) seems to fail - it's exactly the same .config as my previous kernel (2.6.27.10-grsec), which was working fine.

It fails with:

 Booting 'Debian GNU/Linux, kernel 2.6.30.4-grsec'                                                 

root  (hd0)                                                                                         
 Filesystem type is ext2fs, using whole disk                                                        
kernel  /boot/vmlinuz-2.6.30.4-grsec root=ca00 ro                                                   

close blk: backend at /local/domain/0/backend/vbd/628/51712                                         
close blk: backend at /local/domain/0/backend/vbd/628/51728                                         
close blk: backend at /local/domain/0/backend/vbd/628/51744                                         

Config: config-2.6.30.4-grsec4, config-2.6.27.10-grsec

Any ideas?

Thanks