Messages in this thread | | | Date | Mon, 6 Oct 2003 03:14:14 +0100 | From | viro@parcelfa ... | Subject | Re: reiserfs one user DoS? |
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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. - 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/
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