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SubjectRe: [pre-2.6.23 REGRESSION] 2.6.23-rc3-git1 crash/stuck on VIA CN700 system
> flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge cmov pat 
> clflush acpi mmx fxsr sse sse2 tm up pni est tm2 rng rng_en ace ace_en

Hmm, I can't really see anything wrong. This means the original
version of the patch you found had a few problems, but they
were all fixed later and only applied with CONFIG_PARAVIRT enabled anyways.

As a stab in the dark since the CPU has clflush can you please
comment out the

if (cpu_has_clflush)
asm("clflush (%0) " :: "r" (addr) : "memory");

statement in arch/i386/kernel/alternative.c and see if it makes a difference?
Perhaps your CPU doesn't like that (it seems to have clflush)

If that doesn't help it might be needed to revert the patch
hunk by hunk to see which text_poke() invocation caused it.

-Andi
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