Description of problem:
Kernel 2.6.20-1.2966.fc7 fails to boot an installed ia64 system, hitting a NULL
pointer deref, as per the output attached to the bug.
Created attachment 149375 [details]
Serial console output from kernel panic
Happens in 2.6.21-rc3 (latest upstream) as well.
I was just about to post a patch to linux-ia64 when I noticed that Tony Luck
beat me to it :)
Testing with his patch which includes sn specific changes.
Created attachment 149566 [details]
Fix for this issue
Cleanly applies to current rawhide.