Re: EDAC igen6 error messages at boot

[Orion Poplawski <orion@nwra.com>]

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On 10/25/22 23:58, Zhuo, Qiuxu wrote:
>> From: Orion Poplawski <orion@nwra.com>
>>> ...
>>>
>>> Yes, can you try a power cycle on the machine and check whether the
>> error log still occur?
>>> Thanks!
>>
>> Still happens.  Seems to happen all the time.
> 
> Thanks for the feedback.
> 
> Looked like the In-band ECC error log was initialized with the value ~0ULL that
> resulted in the spurious errors.
> 
> I don't have such a machine for debug. Could you please try the attached patch to see
> whether it fixes the spurious errors on driver load? If possible please also open the
> "CONFIG_EDAC_DEBUG=y" kernel configuration for more EDAC debug logs.
> 
> Thanks!
> -Qiuxu

I can confirm that the patch removes the errors from the log:

# dmesg | grep -Fi edac
[    0.979497] EDAC MC: Ver: 3.0.0
[  417.538823] caller igen6_probe+0x176/0x7b0 [igen6_edac] mapping 
multiple BARs
[  417.538876] EDAC MC0: Giving out device to module igen6_edac 
controller Intel_client_SoC MC#0: DEV 0000:00:00.0 (INTERRUPT)
[  417.541597] EDAC MC1: Giving out device to module igen6_edac 
controller Intel_client_SoC MC#1: DEV 0000:00:00.0 (INTERRUPT)
[  417.542186] EDAC igen6: v2.5

However, I forgot to enable the CONFIG_EDAC_DEBUG option - do you still 
need that output?

-- 
Orion Poplawski
he/him/his  - surely the least important thing about me
IT Systems Manager                         720-772-5637
NWRA, Boulder/CoRA Office             FAX: 303-415-9702
3380 Mitchell Lane                       orion@nwra.com
Boulder, CO 80301                 https://www.nwra.com/

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