From: viro@parcelfarce.linux.theplanet.co.uk
To: Erik Tews <erik@debian.franken.de>,
Christian Kujau <evil@g-house.de>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: reiserfs one user DoS?
Date: Mon, 6 Oct 2003 03:14:14 +0100 [thread overview]
Message-ID: <20031006021414.GL7665@parcelfarce.linux.theplanet.co.uk> (raw)
In-Reply-To: <20031006020342.GH1205@matchmail.com>
On Sun, Oct 05, 2003 at 07:03:42PM -0700, Mike Fedyk wrote:
> On Mon, Oct 06, 2003 at 01:51:49AM +0200, Erik Tews wrote:
> > On Sun, Oct 05, 2003 at 06:09:24PM +0200, Christian Kujau wrote:
> > > Hans Reiser schrieb:
> > > >>I have found such strange thing:
> > > >>
> > > >>pseudo@avalon at 14:04:00 ~> dd if=/dev/zero of=file bs=1 count=0
> > > >>seek=1000000000000
> > > >>
> > > >>After that my Intel Celeron 800 MHz/384M RAM 60G/Seagate U6 under
> > > >>Linux-2.4.22-grsec on reiserfs was utilized 100% for more than 2 hours.
> > > >>dd process can't be killed.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> > Really? If I got a process which is unkillable, how can the kernel kill
> > this process if it runs out of cpu-time?
>
> If it is unkillable, you're either talking about kernel bugs or NFS, and
> root should be able to kill a user process that has run out of ulimit
> resources.
next prev parent reply other threads:[~2003-10-06 2:14 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-04 12:06 reiserfs one user DoS? Max A. Krasilnikov
2003-10-04 16:08 ` Hans Reiser
2003-10-05 16:09 ` Christian Kujau
2003-10-05 23:51 ` Erik Tews
2003-10-06 2:03 ` Mike Fedyk
2003-10-06 2:14 ` viro [this message]
2003-10-06 19:29 ` Oleg Drokin
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