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Old 04-12-2012, 05:36 PM
 
Default Interpretation of a hardware error

Hey, folks,

I've just started seeing
Apr 12 13:09:59 <server> kernel: [Hardware Error]:
MC4_STATUS[Over|CE|MiscV|-|AddrV|-|Poison|CECC]: 0xdd0accf2001d011b
Apr 12 13:09:59 <server> kernel: [Hardware Error]: Northbridge Error (node
1, core 1): ECC error in L3 cache tag.
Apr 12 13:09:59 <server> kernel: [Hardware Error]: cache level: L3/GEN,
tx: GEN, mem-tx: RD
Apr 12 13:09:59 <server> kernel: [Hardware Error]: Machine check events
logged

I'm guessing, unhappily, that this means the on-chip cache, not DIMM. Does
anyone here know?

mark, who'll be the one to call it in under warranty....

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Old 04-13-2012, 09:42 AM
Peter Kjellström
 
Default Interpretation of a hardware error

On Thursday 12 April 2012 13.36.03 m.roth@5-cent.us wrote:
> Hey, folks,
>
> I've just started seeing
> Apr 12 13:09:59 <server> kernel: [Hardware Error]:
> MC4_STATUS[Over|CE|MiscV|-|AddrV|-|Poison|CECC]: 0xdd0accf2001d011b
> Apr 12 13:09:59 <server> kernel: [Hardware Error]: Northbridge Error (node
> 1, core 1): ECC error in L3 cache tag.

The error message certainly points to the CPU. The fact that the error
happened on cache tag, not cache data further implicates the CPU.

The message is quite specific and I'd say rather trustworthy...

But there's also the possibility that the message is wrong (either something
else went wrong or nothing really went wrong). In my experience hardware fault
error messages are quite unreliable and at the end of the day DIMMs are
magnitudes more likely to fail than CPUs...

/Peter
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