Messages in this thread | | | Subject | Re: Kernel panic: Machine check exception | From | Nix <> | Date | Sat, 19 Nov 2005 22:24:17 +0000 |
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On 19 Nov 2005, Alan Cox stipulated: > On Sad, 2005-11-19 at 12:54 -0800, Avuton Olrich wrote: >> Is there a good way to narrow it down? I guess running a badmem >> program would be good to start with, otherwise ...(?). > > A memory test may be worth doing but most machine checks indicate the > fault is more serious than bad memory.
Some of them are certainly not very serious in their effects. I get this persistently, once every couple of months, on one of my machines (an Athlon 4 with 768Mb of ECC RAM):
kernel: MCE: The hardware reports a non fatal, correctable incident occurred on CPU 0. kernel: Bank 2: 940040000000017a
and I think it *is* a single slightly wobbly bit (the wobble being too slight for memtest to find).
Nothing discernible has ever gone wrong as a result of that, right down to repeated GCC enable-checking bootstrap-and-tests completing without error (well, without any more than the expected XFAILs).
(I'm just *assuming* the `Bank 2' in this message refers to a bank of RAM. Doubtless this assumption will now be shown to be utterly wrong and a sign of terminal foolishness on my part... ;) )
-- `Y'know, London's nice at this time of year. If you like your cities freezing cold and full of surly gits.' --- David Damerell
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