Messages in this thread | | | Date | Tue, 18 Sep 2007 14:45:04 -0500 | From | Robby Workman <> | Subject | Re: [SOLVED] CPU too old panic on Centrino proc - 2.6.22.6 |
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Andi Kleen wrote: > Robby Workman <rw@rlworkman.net> 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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