linux-kernel - Re: [PATCH 2/3] mm: oom: show unreclaimable slab info when kernel panic

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <alpine.DEB.2.20.1710010142420.25658@nuc-kabylake>
Date:   Sun, 1 Oct 2017 01:43:45 -0500 (CDT)
From:   Christopher Lameter <cl@...ux.com>
To:     Yang Shi <yang.s@...baba-inc.com>
cc:     Pekka Enberg <penberg@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        akpm@...ux-foundation.org, mhocko@...nel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] mm: oom: show unreclaimable slab info when kernel
 panic

On Thu, 28 Sep 2017, Yang Shi wrote:

> > CONFIG_SLABINFO and /proc/slabinfo have nothing to do with the
> > unreclaimable slab info.
>
> The current design uses "struct slabinfo" and get_slabinfo() to retrieve some
> info, i.e. active objs, etc. They are protected by CONFIG_SLABINFO.

Ok I guess then those need to be moved out of CONFIG_SLABINFO. Otherwise
dumping of slabs will not be supported when disabling that option.

Or dump CONFIG_SLABINFO ..