linux-kernel - Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

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: <20170502074432.GB14593@dhcp22.suse.cz>
Date:   Tue, 2 May 2017 09:44:33 +0200
From:   Michal Hocko <mhocko@...nel.org>
To:     Marc MERLIN <marc@...lins.org>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        linux-mm <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Tejun Heo <tj@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of
 RAM that should be free

On Mon 01-05-17 21:12:35, Marc MERLIN wrote:
> Howdy,
> 
> Well, sadly, the problem is more or less back is 4.11.0. The system doesn't really 
> crash but it goes into an infinite loop with
> [34776.826800] BUG: workqueue lockup - pool cpus=6 node=0 flags=0x0 nice=0 stuck for 33s!
> More logs: https://pastebin.com/YqE4riw0

I am seeing a lot of traces where tasks is waiting for an IO. I do not
see any OOM report there. Why do you believe this is an OOM killer
issue?
-- 
Michal Hocko
SUSE Labs