Andi Kleen wrote:
> Robby Workman <[email protected]> writes:
>
>> On booting a 2.6.22.6 kernel with SMP support, I get a panic
>> immediately:
>> PANIC: CPU too old for this kernel
>> This panic does not occur on a non-SMP kernel having almost
>> identical configuration.
>>
>> This is on a Thinkpad T41:
>> /proc/cpuinfo --> http://rlworkman.net/cpuinfo
>> dmesg --> http://rlworkman.net/dmesg
>> kernel config --> http://rlworkman.net/config-2.6.22.6
>>
>> The 2.6.21.5 SMP kernels from Slackware 12.0 all boot properly, and
>> the config for this 2.6.22.6 SMP kernel is based on the one from 12.0.
>>
>> I'm basically reaching for clues at this point -- is this a PEBKAC on
>> my part? What other information would be useful?
>
> Most likely you enabled CONFIG_HIGHMEM64G. Banias didn't support
> PAE.
Thanks, Andi - that was indeed the problem. Of course, things like
this are never solved until asked about on a mailing list :)
HIGHMEM4G rather than HIGHMEM64G (not sure why I had that marked),
no PAE, and I was using the 64-bit memory/IO (EXPERIMENTAL). Now it's
off. A side effect was CONFIG_X86_CMPXCHG64 disappearing from the
.config, which I thought might have also been part of the problem
based on that other thread.
Either way, thanks for the response!
-RW
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