Re: Meaning of negative memory_channel value in rasdaemon message

[Yazen Ghannam <yazen.ghannam@amd.com>]

On Fri, Feb 11, 2022 at 11:40:58PM +0100, tibor.gyori@chem.u-szeged.hu wrote:
> Dear EDAC list,
> 
> when rasdaemon reports a memory error, what does it mean for the
> memory_channel value to be negative?
> 
> Example:
> Feb 11 22:34:40 CRD-MILAN-3 rasdaemon[918]:            <...>-42552 [001]
> 0.007845: mce_record:           2022-02-11 22:34:40 +0100 Unified Memory
> Controller (bank=18), status= 9c2040000000011b, Corrected error, no action
> required., mci=CECC, mca= DRAM ECC error.
> Feb 11 22:34:40 CRD-MILAN-3 rasdaemon[918]:  Memory Error 'mem-tx: generic
> read, tx: generic, level: L3/generic', memory_channel=-1,csrow=3, cpu_type=
> AMD Scalable MCA, cpu= 1, socketid= 0, misc= d01a0c7b01000000, addr=
> 2fa07780, synd= e4da80000a800603, ipid= 9600350f00, mcgstatus=0, mcgcap=
> 118, apicid= 1
> 
> Is -1 a magic value for memory_channel? On the AMD Milan platform, I would
> expect that memory channels would be numbered from 0 to 7. I googled for a
> bit, but could not find where this sort of stuff would be documented.
> 

Hi Tibor,

Which version of rasdaemon are you using?

You may be missing the following commit which is including v0.6.7.

https://github.com/mchehab/rasdaemon/commit/854364ba44aee9bc5646f6537fc744b0b54aff37

Thanks,
Yazen