linux-kernel - Re: [PATCH] EDAC: expose per-dimm error counts in sysfs

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Date:   Thu, 27 Oct 2016 20:07:16 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Aaron Miller <aaronmiller@...com>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-edac@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] EDAC: expose per-dimm error counts in sysfs

On Tue, Oct 25, 2016 at 04:25:51PM -0700, Aaron Miller wrote:

<--- This patch needs a commit message.

Especially as to *why* we need this.

> Signed-off-by: Aaron Miller <aaronmiller@...com>
> ---
>  drivers/edac/edac_mc_sysfs.c | 38 ++++++++++++++++++++++++++++++++++++++
>  1 file changed, 38 insertions(+)

Regardless, something's still not right yet:

$ echo 1 > /sys/kernel/debug/edac/mc0/fake_inject_channel
$ echo 2 > /sys/kernel/debug/edac/mc0/fake_inject_slot
$ echo 3 > /sys/kernel/debug/edac/mc0/fake_inject_count
       ^

$ echo 1 > /sys/kernel/debug/edac/mc0/fake_inject

$ grep . /sys/devices/system/edac/mc/mc0/*count
/sys/devices/system/edac/mc/mc0/ce_count:3
					 ^

/sys/devices/system/edac/mc/mc0/ce_noinfo_count:0
/sys/devices/system/edac/mc/mc0/ue_count:0
/sys/devices/system/edac/mc/mc0/ue_noinfo_count:0

$ grep -r . /sys/devices/system/edac/mc/mc0/dimm*/* 2>/dev/null | grep ce_count
/sys/devices/system/edac/mc/mc0/dimm0/dimm_ce_count:0
/sys/devices/system/edac/mc/mc0/dimm3/dimm_ce_count:0
/sys/devices/system/edac/mc/mc0/dimm6/dimm_ce_count:0
/sys/devices/system/edac/mc/mc0/dimm9/dimm_ce_count:0
						    ^

There should be 3 somewhere in the DIMM counters...

-- 
Regards/Gruss,
    Boris.

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