linux-kernel - Re: [PATCH v2] EDAC/i10nm: shift exponent is negative

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Message-ID: <1D7C9A01-C95A-429C-AC06-94D6188BC4EC@intel.com>
Date:   Tue, 4 Jul 2023 03:14:45 +0000
From:   "Luck, Tony" <tony.luck@...el.com>
To:     Koba Ko <koba.ko@...onical.com>
CC:     Markus Elfring <Markus.Elfring@....de>,
        "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
        "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
        Borislav Petkov <bp@...en8.de>,
        "James Morse" <james.morse@....com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Robert Richter <rric@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] EDAC/i10nm: shift exponent is negative

Interesting. This isn’t some odd shaped DIMM.
You are just getting a failed read from the register.
So trying to decode all-ones.

I’ll try to look at the full log you linked when I’m 
on a computer instead of a phone.

> [    4.032335] EDAC DEBUG: skx_get_dimm_attr: bad ranks = 3 (raw=0xffffffff)
> [    4.032337] EDAC DEBUG: skx_get_dimm_attr: bad rows = 7 (raw=0xffffffff)
> [    4.032338] EDAC DEBUG: skx_get_dimm_attr: bad cols = 3 (raw=0xffffffff)