ia64 regression from r285809 to 286952: kernel does not boot

[Anton Shterenlikht]

I'm not sure if ia64 list is still operational, so
post here.

ia64 r285809 10-STABLE works fine.
I updated to r286952, buildworld, buildkernel, installkernel,
reboot, boot -s, and I get stuck with:

FreeBSD/ia64 EFI boot, Revision 3.0
(root at mech-cluster241.men.bris.ac.uk, Thu May  5 11:18:40 BST 2011)
Loading /boot/defaults/loader.conf 
/boot/kernel/kernel text=0x11107f0 data=0xdfd68+0xa54f8 syms=[0x8+0xc2a78+0x8+0xb7965]
-
Hit [Enter] to boot immediately, or any other key for command prompt.
Booting [/boot/kernel/kernel]...               
Entering /boot/kernel/kernel at 0x9ffc000000010500...

Have to do a power reset.

Thanks

Anton