linux-kernel - Re: Regarding slabinfo tool generating kernel crash

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Message-ID: <20180227135517.GA29402@dhcp22.suse.cz>
Date:   Tue, 27 Feb 2018 14:55:17 +0100
From:   Michal Hocko <mhocko@...nel.org>
To:     Gopi Sai Teja <gopi.st@...sung.com>
Cc:     "penberg@...nel.org" <penberg@...nel.org>,
        "rientjes@...gle.com" <rientjes@...gle.com>,
        "iamjoonsoo.kim@....com" <iamjoonsoo.kim@....com>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Ami Prakash Asthana <prakash.a@...sung.com>,
        Lalit Mohan Tripathi <lalit.mohan@...sung.com>,
        Himanshu Shukla <himanshu.sh@...sung.com>,
        AMIT SAHRAWAT <a.sahrawat@...sung.com>,
        PANKAJ MISHRA <pankaj.m@...sung.com>
Subject: Re: Regarding slabinfo tool generating kernel crash

On Mon 26-02-18 18:52:35, Gopi Sai Teja wrote:
> Hi all,
> 
> We are using slabinfo tool with -df option. Tool is generating kernel crash.
> Please help if anyone got same issue.
> 
> Our kernel image was built with poison, store_user, red_zone and sanity_checks
> enabled in slab debug.

Such a report is basically pointless without the crash report and the
kernel version which happens to be affected.

-- 
Michal Hocko
SUSE Labs