linux-kernel - Re: Runaway process and oom-killer

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: <466FB6E8.8020606@free.fr>
Date:	Wed, 13 Jun 2007 11:20:40 +0200
From:	John Sigler <linux.kernel@...e.fr>
To:	Andrea Arcangeli <andrea@...e.de>
CC:	linux-kernel@...r.kernel.org
Subject: Re: Runaway process and oom-killer

Andrea Arcangeli wrote:

> On Wed, Jun 13, 2007 at 10:49:29AM +0200, John Sigler wrote:
>
>> Question 2: how can I tell which process or kernel thread was hogging 
>> most of the RAM when the oom-killer kicked in?
> 
> Theoretically the one that was killed first but not for sure in
> current mainline hence see below.

If I read the logs correctly, oom-killer is "invoked" three times before 
it effectively kills a process. Then oom-killer kills myapp, syslogd, 
and boa, in that order. Why didn't oom-killer kill anything the first 
three times?

>> Question 3: if myapp was hogging the RAM, then why did oom-killer snipe 
>> other processes (syslogd and boa) after it killed myapp?
> 
> Please try again after applying this monolith (proper submission was
> on linux-mm but the monolith is easier to apply for tests like this):
> 
>    http://www.kernel.org/pub/linux/kernel/people/andrea/patches/v2.6/2.6.22-rc4/oom-fixes-1

Would this patch apply to a 2.6.20.7-rt8 source tree?

Regards.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/