linux-kernel - Re: [PATCH] mm: warn only once if page table misaccounting is detected

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Message-ID: <20181127084626.a4l65sqqipqukrx7@kshutemo-mobl1>
Date:   Tue, 27 Nov 2018 11:46:26 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Heiko Carstens <heiko.carstens@...ibm.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org,
        linux-mm@...ck.org, Martin Schwidefsky <schwidefsky@...ibm.com>
Subject: Re: [PATCH] mm: warn only once if page table misaccounting is
 detected

On Tue, Nov 27, 2018 at 09:36:03AM +0100, Heiko Carstens wrote:
> Use pr_alert_once() instead of pr_alert() if page table misaccounting
> has been detected.
> 
> If this happens once it is very likely that there will be numerous
> other occurrence as well, which would flood dmesg and the console with
> hardly any added information. Therefore print the warning only once.
> 
> Cc: Kirill A. Shutemov <kirill@...temov.name>
> Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
> Signed-off-by: Heiko Carstens <heiko.carstens@...ibm.com>

Fair enough.

Acked-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>

-- 
 Kirill A. Shutemov