Messages in this thread | | | Subject | Re: bluesmoke, machine check exception, reboot | From | Alan Cox <> | Date | 28 May 2002 16:09:00 +0100 |
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On Tue, 2002-05-28 at 14:46, Corin Hartland-Swann wrote: > CPU 1: Machine Check Exception: 0000000000000004 > Bank 1: b200000000000115 > Kernel panic: CPU context corrupt > > How do you work out what the numbers mean? Is there some kind of reference > to it, or are you just Alan "decodes machine check exceptions in his head" > Cox :) From the code it seems to be some kind of MCG status and MC0 status > - but of course, I have no idea what that means...
I contemplate them in zen peace and they speak to me 8). The MCE value is the flags from the control register. The Bank n value is a dump of the register that explains what the fault is. The decoding rules are in the Intel Pentium III documentation set.
> After checking the logs (above) I found that the two times this has > happened it has managed to write it to the logs. Is the fact that it > sync()d a good indication that it will manage to reboot OK?
Is the fact the airbag deployed a good indication that it will deploy if you keep crashing into walls ? Its logging a CPU error where it decides the CPU is in an unrecoverable state. The odds are pretty good but each time you are taking the risk it won't, and if its a hardware problem that it might simply drop dead for good.
Alan
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