[BUG] 2.6.25-rc8-mm1 kernel panic while bootup on powerpc

[Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>]

Hi Andrew,

The 2.6.25-rc8-mm1 kernel panic's while bootup on the power machine(s).

[    0.000000] ------------[ cut here ]------------
[    0.000000] kernel BUG at arch/powerpc/mm/init_64.c:240!
[    0.000000] Oops: Exception in kernel mode, sig: 5 [#1]
[    0.000000] SMP NR_CPUS=32 NUMA PowerMac
[    0.000000] Modules linked in:
[    0.000000] NIP: c0000000003d1dcc LR: c0000000003d1dc4 CTR: c00000000002b6ac
[    0.000000] REGS: c00000000049b960 TRAP: 0700   Not tainted  (2.6.25-rc8-mm1-autokern1)
[    0.000000] MSR: 9000000000021032 <ME,IR,DR>  CR: 44000088  XER: 20000000
[    0.000000] TASK = c0000000003f9c90[0] 'swapper' THREAD: c000000000498000 CPU: 0
[    0.000000] GPR00: c0000000003d1dc4 c00000000049bbe0 c0000000004989d0 0000000000000001 
[    0.000000] GPR04: d59aca40f0000000 000000000b000000 0000000000000010 0000000000000000 
[    0.000000] GPR08: 0000000000000004 0000000000000001 c00000027e520800 c0000000004bf0f0 
[    0.000000] GPR12: c0000000004bf020 c0000000003fa900 0000000000000000 0000000000000000 
[    0.000000] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
[    0.000000] GPR20: 0000000000000000 0000000000000000 0000000000000000 4000000001400000 
[    0.000000] GPR24: 00000000017d64b0 c0000000003d6250 0000000000000000 c000000000504000 
[    0.000000] GPR28: 0000000000000000 cf000000001f8000 0000000001000000 cf00000000000000 
[    0.000000] NIP [c0000000003d1dcc] .vmemmap_populate+0xb8/0xf4
[    0.000000] LR [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4
[    0.000000] Call Trace:
[    0.000000] [c00000000049bbe0] [c0000000003d1dc4] .vmemmap_populate+0xb0/0xf4 (unreliable)
[    0.000000] [c00000000049bc70] [c0000000003d2ee8] .sparse_mem_map_populate+0x38/0x60
[    0.000000] [c00000000049bd00] [c0000000003c242c] .sparse_early_mem_map_alloc+0x54/0x94
[    0.000000] [c00000000049bd90] [c0000000003c250c] .sparse_init+0xa0/0x20c
[    0.000000] [c00000000049be50] [c0000000003ab7d0] .setup_arch+0x1ac/0x218
[    0.000000] [c00000000049bee0] [c0000000003a36ac] .start_kernel+0xe0/0x3fc
[    0.000000] [c00000000049bf90] [c000000000008594] .start_here_common+0x54/0xc0
[    0.000000] Instruction dump:
[    0.000000] 7fe3fb78 7ca02a14 4082000c 3860fff4 4800003c e92289c8 e96289c0 e9090002 
[    0.000000] e8eb0002 4bc575cd 60000000 78630fe0 <0b030000> 7ffff214 7fbfe840 7fe3fb78 
[    0.000000] ---[ end trace 31fd0ba7d8756001 ]---
[    0.000000] Kernel panic - not syncing: Attempted to kill the idle task!

-- 
Thanks & Regards,
Kamalesh Babulal,
Linux Technology Center,
IBM, ISTL.