linux-2.6.9-rc* ppc64 broken on UNI?

[Ananth N Mavinakayanahalli]

Hi,

I am using linux-2.6.9-rc* on an old Power3 box here and looks like
the tree is broken for UNI (SMP works fine). I am not too familiar
with the fpu stuff to figure out the issue myself. 

I get the following exception:

The system is going down for reboot NOW!INIT: Sending pVector: 300 (Data Access) at [c00000003f617bb0]
    pc: c00000000000b8b0: copy_to_here+0xb0/0x16c
    lr: 00000000100419dc
    sp: c00000003f617e30
   msr: a000000000003032
   dar: 108
 dsisr: 40000000
  current = 0xc000000001b3d900
  paca    = 0xc000000000320000
    pid   = 1298, comm = bash
enter ? for help
mon> r
R00 = 00000000100419dc   R16 = 0000000080000000
R01 = c00000003f617e30   R17 = 0000000010010000
R02 = c0000000004273b0   R18 = 0000000000000000
R03 = c000000000428e68   R19 = 00000000ffffee5c
R04 = c00000000ff81c60   R20 = 0000000010020000
R05 = 0000000000000000   R21 = 00000000ffff67b0
R06 = 00000000616e6400   R22 = 0000000010010000
R07 = fffffffffefefeff   R23 = 00000000000055d0
R08 = 000000007f7f7f7f   R24 = 0000000000000001
R09 = 0000000000000801   R25 = 0000000000000001
R10 = 0000000000000000   R26 = 00000000f800fa98
R11 = 7265677368657265   R27 = 00000000f800fa9c
R12 = 200000000000d032   R28 = 000000001008e930
R13 = c000000000320000   R29 = 000000001008e930
R14 = 0000000000000000   R30 = 0000000000000001
R15 = 0000000010020000   R31 = 0000000000000001
pc  = c00000000000b8b0 copy_to_here+0xb0/0x16c
lr  = 00000000100419dc
msr = a000000000003032   cr  = 88000422
ctr = 0000000110049db0   xer = 0000000020000000   trap =      300
mon> s
Vector: 300 (Data Access) at [c00000003f617bb0]
    pc: c00000000000b8b0: copy_to_here+0xb0/0x16c
    lr: 00000000100419dc
    sp: c00000003f617e30
   msr: a000000000003432
   dar: 108
 dsisr: 40000000
  current = 0xc000000001b3d900
  paca    = 0xc000000000320000
    pid   = 1298, comm = bash
enter ? for help
mon> zr

Has anyone seen a similar problem? Any ideas?

Thanks,
Ananth