From: Bernd Eckenfels <ecki-news2002-06@lina.inka.de>
To: linux-kernel@vger.kernel.org
Subject: Re: Very large font size crashing X Font Server and Grounding Server to a Halt
Date: Fri, 14 Jun 2002 00:33:54 +0200 [thread overview]
Message-ID: <E17IdAA-0001aJ-00@sites.inka.de> (raw)
In-Reply-To: <Pine.LNX.4.44.0206132128570.4999-100000@server3.jumpleads.com>
In article <Pine.LNX.4.44.0206132128570.4999-100000@server3.jumpleads.com> you wrote:
> It has always puzzled me that a process using lots of memory can bring
> down an entire (otherwise relatively idle) server to the extent that one
> cannot even get mingetty on a local terminal to respond to keypresses. I
> can confirm that the described situation is not just a one-off.
Well, with crrent versions you have to have 2 or 3 of them to realy make a
server trtash. Something like:
tail /dev/zero
recovers with the oom killer
tail /dev/zero & tail /dev/zero & tail /dev/zero
will most likely trash for minutes.
Some kind of penalty could be introduced, because this is better to set up
than ulimit. On a system with large amounts of users you simply cant set the
ulimit of a single user to mainram/concurrent-users or
mainram/concurrent-evil-users.
Greetings
Bernd
next prev parent reply other threads:[~2002-06-13 22:33 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20020610102006.A6947@lemuria.org>
2002-06-13 1:44 ` Very large font size crashing X Font Server and Grounding Server to a Halt (was: remote DoS in Mozilla 1.0) Federico Sevilla III
2002-06-13 5:39 ` Very large font size crashing X Font Server and Grounding Server to Alan Cox
2002-06-13 5:57 ` rlimits and non overcommit (was: Very large font size ...) Federico Sevilla III
2002-06-13 6:11 ` Keith Owens
2002-06-13 9:25 ` rlimits and non overcommit Federico Sevilla III
2002-06-13 7:18 ` Very large font size crashing X Font Server and Grounding Server to a Halt (was: remote DoS in Mozilla 1.0) Matti Aarnio
2002-06-13 16:26 ` rjh
2002-06-14 13:50 ` Security Coordinator
2002-06-13 21:10 ` Matthew Wakeling
2002-06-13 22:33 ` Bernd Eckenfels [this message]
2002-06-13 17:17 Melchior FRANZ
2002-06-13 17:34 ` Billy O'Connor
2002-06-13 19:22 ` Very large font size crashing X Font Server and Grounding Server to a Halt Melchior FRANZ
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