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SubjectRe: 2.5.59-mm8

Booted to login prompt, then immediately oopsed
(16-way NUMA-Q, mm6 worked fine). At a wild guess, I'd suspect
irq_balance stuff.

Unable to handle kernel NULL pointer dereference at virtual address 0000013c
printing eip:
*pde = 2ecb7001
*pte = 00000000
Oops: 0002
CPU: 2
EIP: 0060:[<c01ed768>] Not tainted
EFLAGS: 00010046
EIP is at isp1020_intr_handler+0x1f8/0x330
eax: 00000000 ebx: ef67f080 ecx: 00000000 edx: 00000000
esi: 00000000 edi: 00000003 ebp: ef6c589c esp: f0199efc
ds: 007b es: 007b ss: 0068
Process swapper (pid: 0, threadinfo=f0198000 task=f019cc40)
Stack: ef67f080 c02c7fe0 0360db40 f0199f40 00000003 ef6c5800 00000086
00000013 c01ed556 00000013 ef6c5800 f0199f7c f01ef7e0 24000001
00000013 ef6c5800 f0199f7c c02c3a60 00000260 00000013 f01ef7e0
Call Trace:
[<c01ed556>] do_isp1020_intr_handler+0x36/0x50
[<c010b7c5>] handle_IRQ_event+0x45/0x70
[<c010b9bd>] do_IRQ+0x8d/0x100
[<c0107080>] default_idle+0x0/0x50
[<c0107080>] default_idle+0x0/0x50
[<c010a070>] common_interrupt+0x18/0x20
[<c0107080>] default_idle+0x0/0x50
[<c0107080>] default_idle+0x0/0x50
[<c01070aa>] default_idle+0x2a/0x50
[<c010714a>] cpu_idle+0x3a/0x50
[<c0120294>] printk+0x164/0x1a0

Code: 89 86 3c 01 00 00 e9 5b ff ff ff c7 44 24 08 40 00 00 00 8d
<0>Kernel panic: Aiee, killing interrupt handler!
In interrupt handler - not syncing

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