Re: Machine check 2.6.13.3 dual opteron

[Doug Thompson]

With the Opteron Bank 4 value you gave, this decodes to:


Decoding MCE value as MCi_STATUS: 'b200000000070f0f'
Bit  63:    Valid error
Bit  61:    UNCORRECTED error
Bit  60:    MCA Error Reporting Enabled
Bit  57:    Process Context Corrupt
            HyperTransport Link Number= 0
            Extended Error Code = 0x7 - WatchDog error

BUS Error:
        Processor(generic)
        TimeOut(timed out)
        Memory Transaction Type(generic)
        Mem or IO(generic)
        Cache Level(generic)

You had an Uncorrectable Error. 
Since you did not post an address error, I assume that it did NOT report such. Therefore, because
of the WatchDog error, there might be an error between the CPU and memory.  There is a hardware
problem definitely.

CPU-Mem Controller
Even bad memory DIMM

doug thompson


--- Andy Stewart <andystewart@xxxxxxxxxxx> wrote:

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> 
> Hi everybody,
> 
> My machine locked up on me and I found this message on my serial
> console.  I have no idea how to decode its meaning - can you help?
> 
> CPU 0: Machine Check Exception:                4
> Bank 4: b200000000070f0f
> TSC 39619ee1e2187
> Kernel panic - not syncing: Machine check
> 
> My machine is a dual Opteron running the 2.6.13.3 kernel.  I'm not
> positive, but I think I can reproduce it.  Assuming that I can, what
> information would be helpful to debug the problem?
> 
> Please cc: me on the response as I am not subscribed to this mailing list.
> 
> Thanks!
> 
> Andy
> - --
> Andy Stewart, Founder
> Worcester Linux Users' Group
> Worcester, MA, USA
> http://www.wlug.org
> 
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