linux-kernel - Re: [PATCH] mtd: mtdoops: optionally dump boottime

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Message-ID: <2141312.dtCrDzBczl@blindfold>
Date:   Sun, 20 May 2018 10:17:05 +0200
From:   Richard Weinberger <richard@....at>
To:     Stefan M Schaeckeler <sschaeck@...co.com>
Cc:     David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Boris Brezillon <boris.brezillon@...tlin.com>,
        Marek Vasut <marek.vasut@...il.com>,
        linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mtd: mtdoops: optionally dump boottime

Stefan,

Am Sonntag, 20. Mai 2018, 05:39:40 CEST schrieb Stefan M Schaeckeler:
> Optionally dump boottime on the mtd device in the form of
> 
> <0>[   0.000000] Boot time mm/dd/yyyy hh:mm:ss
> 
> Time-stamps of oops messages are in seconds since boottime. Recording also
> the boottime helps correlating oopses with other events having occured at
> the same time. This correlation will be otherwise lost after (multiple)
> reboots.

I get the use-case, but why is this only for mtdoops?
IMHO this needs to go into generic code such that all kmsg dumpers can
benefit from it.

Thanks,
//richard