From: "Kristian Sørensen" <ks@cs.aau.dk>
To: linux-kernel@vger.kernel.org
Cc: umbrella@cs.aau.dk
Subject: Gigantic memory leak in linux-2.6.[789]!
Date: Fri, 22 Oct 2004 16:13:35 +0200 [thread overview]
Message-ID: <200410221613.35913.ks@cs.aau.dk> (raw)
Hi all!
After some more testing after the previous post of the OOPS in
generic_delete_inode, we have now found a gigantic memory leak in Linux 2.6.
[789]. The scenario is the same:
File system: EXT3
Unpack and delete linux-2.6.8.1.tar.bz2 with this Bash while loop:
let "i = 0"
while [ "$i" -lt 10 ]; do
tar jxf linux-2.6.8.1.tar.bz2;
rm -fr linux-2.6.8.1;
let "i = i + 1"
done
When the loop has completed, the system use 124 MB memory more _each_ time....
so it is pretty easy to make a denial-of-service attack :-(
We have tried the same test on a RHEL WS 3 host (running a RedHat 2.4 kernel)
- and there is no problem.
Any deas?
--
Kristian Sørensen
- The Umbrella Project
http://umbrella.sourceforge.net
E-mail: ipqw@users.sf.net, Phone: +45 29723816
next reply other threads:[~2004-10-22 14:15 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-22 14:13 Kristian Sørensen [this message]
2004-10-22 14:32 ` Gigantic memory leak in linux-2.6.[789]! Kasper Sandberg
2004-10-22 15:07 ` Richard B. Johnson
2004-10-22 15:50 ` Kristian Sørensen
2004-10-22 16:12 ` Richard B. Johnson
2004-10-22 19:24 ` Kristian Sørensen
2004-10-22 19:20 ` Richard B. Johnson
2004-10-22 19:33 ` Chris Friesen
2004-10-22 16:15 ` Gene Heskett
2004-10-22 16:28 ` Andre Tomt
2004-10-22 16:32 ` Chris Friesen
2004-10-23 0:51 ` David Lang
2004-10-24 14:14 ` Bill Davidsen
2004-10-24 16:04 ` Tommy Reynolds
2004-10-25 22:11 ` Bill Davidsen
2004-10-25 22:47 ` David Lang
2004-10-23 1:44 ` Bernd Eckenfels
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