DS10L - "processor correctable error"
Anton Shterenlikht
mexas at bristol.ac.uk
Thu Feb 7 07:40:33 PST 2008
On Thu, Feb 07, 2008 at 03:53:12PM +0100, Bernd Walter wrote:
> On Wed, Feb 06, 2008 at 12:17:38PM +0000, Anton Shterenlikht wrote:
> >
> > "Warning: received processor correctable error."
> >
> > What is the meaning of this warning? Something wrong with hardware?
>
> This is an ECC memory correction.
> It is OK to see it once in a while, since even 100% working DRAM has
> failures from time to time (called softerror rate) - therefor the need
> to have ECC in important systems
> If however you see a lot of them it is time to replace the faulty
> memory.
Bernd, thank you.
Can I know which DIMM (DS10L has 2 DIMMs) is faulty?
If I run SRM memexer I get:
>>>show_status
ID Program Device Pass Hard/Soft Bytes Written Bytes Read
-------- ------------ ------------ ------ --------- ------------- -------------
00000001 idle system 0 0 0 0 0
000003ab memtest memory 6 0 0 5586812928 5586812928
>>>
Processor correctable error through vector 630.
Machine Check Logout Frame @ 0x6000 Code = 0x86
Alpha 21264 IPRs (CPU 0):
I_STAT: 0000000000000000 DC_STAT: 000000000000000C
C_ADDR: 00000000296287C0 DC1_SYNDROME: 0000000000000000
DC0_SYNDROME: 000000000000008F C_STAT: 0000000000000003
C_STS: 000000000000000A MM_STAT: 0000000000000000
>>>
The message appears approx. once every other pass.
The address is always the same.
thanks
anton
--
Anton Shterenlikht
Room 2.6, Queen's Building
Mech Eng Dept
Bristol University
University Walk, Bristol BS8 1TR, UK
Tel: +44 (0)117 928 8233
Fax: +44 (0)117 929 4423
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