Messages in this thread |  | | | Subject | Re: Gigantic memory leak in linux-2.6.[789]! | | From | Kasper Sandberg <> | | Date | Fri, 22 Oct 2004 16:32:15 +0200 |
| |
On Fri, 2004-10-22 at 16:13 +0200, Kristian Sørensen wrote: > 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 :-( well.. i could understand if it used the total size of a unpacked linux kernel, even after the loop stopped, since it would just keep it cached, however, it might not be that case when it adds 124mb each time... > > 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? >
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |