reiserfs seems to be borked.
In case -22mdk worked. Could you boot into -22mdk and fdisk -l /dev/hda or whatever holds your reiserfs partitions? And, a dd if=/dev/hda of=my_disk count=2 could help too.
A little more information about the kernel panic would be helpful too as we can't telepathicly read what you got and where. ;-)
Thanks, Gwenole
