Re: EDAC support for 'Rocket Lake'

[Tony Luck <tony.luck@intel.com>]

On Wed, Oct 05, 2022 at 02:13:13PM +0200, Christian Lorenz wrote:
> Hi,
> 
> we are using the EDAC interface on Linux for our internal ECC DIMM
> hardware monitoring.
> 
> With Sky Lake CPUs, the kernel driver in use is 'skx_edac'.
> 
> We have now received servers with the following CPUs, for which there
> does not seem to be kernel EDAC support:
> 
>   processor       : 11
>   vendor_id       : GenuineIntel
>   cpu family      : 6
>   model           : 167
>   model name      : Intel(R) Xeon(R) E-2386G CPU @ 3.50GHz
>   external link   : see [1] at the end of this mail
> 
> We have observed that there seems to be no EDAC support for this CPU,
> /sys/devices/system/edac is not populated, tools like edac-utils or
> rasdaemon do not function without it.
> 
> We have tested this with the same result on:
> 
>   - RHEL 8.6 -- kernel version 4.18.0-372
>   - AlmaLinux 8.6 -- kernel version 4.18.0-372
>   - RHEL 9.0 -- kernel version 5.14.0
> 
> According to documentation, the E-2386G codename is 'formerly Rocket Lake'.
> 
> Our question: Is there or will there be EDAC support for this 'Rocket Lake'
> Xeon E-23XX CPU?

Christian,

Historically Intel has provided EDAC drivers for the "big" Xeon
systems (formery "-E5" and "-E7", currently "-SP" Xeon models).

Support for the Xeon-E3 models had been provided by members of
the community. Most recent update for the ie31200_edac driver
to support Kaby Lake was from Jason Baron (added to this e-mail).

Jason: Are you looking at Rocket Lake?

-Tony