Messages in this thread | | | Date | Wed, 6 Aug 2003 18:05:53 -0500 | From | Matt Mackall <> | Subject | Re: Machine check expection panic |
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On Wed, Aug 06, 2003 at 04:35:33PM -0600, kwijibo@zianet.com wrote: > I decided to try out the new 2.6.0-test2 kernel today but > ran into a problem with booting it. I narrowed it down to > the machine check expection code. I get this panic from > the kernel on boot when I have it enabled > > CPU0: Machine Check Exception: 0000000000000004 > Bank0: f606200000000833 at 0000000000004040 > Kernel Panic: CPU context corrupt.
$ parsemce -b 0 -e 0000000000000004 -s f606200000000833 -a 0000000000004040 Status: (4) Machine Check in progress. Restart IP invalid. parsebank(0): f606200000000833 @ 4040 External tag parity error Uncorrectable ECC error CPU state corrupt. Restart not possible Address in addr register valid Error enabled in control register Error not corrected. Error overflow Bus and interconnect error Participation: Local processor originated request Timeout: Request did not timeout Request: Generic error Transaction type : Instruction Memory/IO : Other
Looks like corruption with your L2 cache. Odds are its heat-related.
> I disabled this option in the kernel and recompiled and everything > went smooth. I figured maybe there could actually possibly be > something wrong with the CPU but I can boot with RedHat's > 2.4.20-19 kernel fine which I *think* includes machine check exception > code. I have no beef with leaving the exception code out but I figured > someone on this list may want to know. > > Little bit of hardware info: > Tyan 2466 motherboard > 2 Athon MP 1200 processors
-- Matt Mackall : http://www.selenic.com : of or relating to the moon - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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