linux-kernel - Re: [PATCH] EDAC/device: Add sysfs notification for UE,CE count change

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Date:   Mon, 31 Jul 2023 15:40:23 -0700
From:   Trilok Soni <quic_tsoni@...cinc.com>
To:     Deepti Jaggi <quic_djaggi@...cinc.com>, <james.morse@....com>,
        <mchehab@...nel.org>, <rric@...nel.org>, <bp@...en8.de>,
        <tony.luck@...el.com>
CC:     <linux-edac@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <kernel@...cinc.com>, <quic_psodagud@...cinc.com>
Subject: Re: [PATCH] EDAC/device: Add sysfs notification for UE,CE count
 change

On 7/31/2023 3:00 PM, Deepti Jaggi wrote:
> A daemon running in user space collects information on correctable
> and uncorrectable errors from EDAC driver by reading corresponding
> sysfs entries and takes appropriate action.

Which daemon we are referring here? Can you please provide the link to 
the project?

Are you using this daemon?

https://mcelog.org/ - It is for x86, but is your daemon project different?

> This patch adds support for user space daemon to wait on poll() until
> the sysfs entries for UE count and CE count change and then read updated
> counts instead of continuously monitoring the sysfs entries for
> any changes.

The modifications below are architecture agnostic so I really want to 
know what exactly we are fixing and if there is a problem.


-- 
---Trilok Soni