MCE error

MCE error

[Lawrence Walton]

I just got a MCE error while running 2.5.65 "MCE: The hardware reports a non fatal, correctable incident occurred on CPU 0.
Bank 2: 940040000000017a" did a google search and found Dave Jones's parsemce, and decoded it to

Status: (ba) Error IP valid
Restart IP invalid.

And was wondering what that actually meant. :) 
Really what I need to know is, how non fatal is non fatal?


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Re: MCE error

[Dave Jones]

On Sun, Mar 30, 2003 at 10:47:56AM -0800, Lawrence Walton wrote:
 > I just got a MCE error while running 2.5.65 "MCE: The hardware reports a non fatal, correctable incident occurred on CPU 0.
 > Bank 2: 940040000000017a" did a google search and found Dave Jones's parsemce, and decoded it to
 > 
 > Status: (ba) Error IP valid
 > Restart IP invalid.
 > 
 > And was wondering what that actually meant. :) 

Incomplete dump, what it really means.. 

(davej@deviant:davej)$ ./a.out -b 2 -e 0xba -s 940040000000017a -a 0
Status: (186) Error IP valid
Restart IP invalid.
parsebank(2): 940040000000017a @ 0
	External tag parity error
	Correctable ECC error
	Address in addr register valid
	Error enabled in control register
	Memory heirarchy error
	Request: Generic error
	Transaction type : Generic
	Memory/IO : I/O

Looks like the L2 cache ECC checking spotted something going wrong,
and fixed it up. This can happen in cases where there is inadequate
cooling, power, or overclocking (or in rare circumstances, flaky CPUs)

		Dave