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SubjectCrash on boot when switching between 2.4.32-pre2 and 2.6.13-pre6
I have a dual P3 machine that crashes when I first (cold) start it with
2.6.13-rc6 and then reboot it to use 2.4.32-pre2.
It boots, and during booting, around the time it is supposed to
initalize serial device and software watchdog, it hangs with a message
like this: (Note: It is garbled on my serial terminal):
v ((r20t0u1all0 7ad-d0r8e)s ww itt00 0M000N0YY8_
R TSS rSiHnttiREn_gI Reii SS P
IAA0L0_PP0000 1I8 E
P**Ppddee naabb0l0ed0

ttyS00 at 00
3fCPU: 1
) is a 0010:[<00000018 0x02f8 (itainted
010Real Time Clock0000 ebx.10f
6foftware Wat0000001 er: 0.05, timer mesiin: 60 se0 edi: c1b02000
ebp: ffff
e000 esp: c1b03fb0
ds: 0018 es: 0018 ss: 0018
Process swapper (pid: 0, stackpage=c1b03000)
Stack: c01070a2 00000002 00000000 00000000 00000000 c011f855 00000b1a
00000286 c03ac81c 00000001 00000000 00000001 c044cbea 00000246
000000ff c011facf 00000000 00000400
Call Trace: [<c01070a2>] [<c011f855>] [<c011facf>]

Code: Bad EIP value.
<0>Kernel panic: Attempted to kill the idle task!
In idle task - not syncing
If it matters, I am booting this machine with 'acpi=off' as with ACPI
enabled, whenever I reboot the machine, It just turns itself off.
Cold starting from 2.4 and 2.6 works just fine. The machine runs the ltp
test and can compile kernels several times with -j8
Please let me know if you need more information.

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