linux-kernel - Re: [PATCH 3/3] mm: oom: show unreclaimable slab info when kernel panic

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Message-ID: <9037e387-2828-8f77-2dab-01f290187119@alibaba-inc.com>
Date:   Fri, 15 Sep 2017 01:48:56 +0800
From:   "Yang Shi" <yang.s@...baba-inc.com>
To:     Christopher Lameter <cl@...ux.com>
Cc:     penberg@...nel.org, rientjes@...gle.com, iamjoonsoo.kim@....com,
        akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] mm: oom: show unreclaimable slab info when kernel
 panic



On 9/14/17 10:32 AM, Christopher Lameter wrote:
> I am not sure that this is generally useful at OOM times unless this is
> not a rare occurrence.

I would say it is not very rare. But, it is definitely troublesome to 
narrow down without certain information about slab usage when it happens.

Thanks,
Yang

> 
> Certainly information like that would create more support for making
> objects movable
>