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    SubjectRe: reiserfs one user DoS?
    From
    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.
    > >>
    > >>Is this my flow or real bug?
    > >>
    > >it is fixed in reiser4. linux has a lot of DOS vulerabilities to logged
    > >in users, mostly due to the ability to consume all of some resource or
    > >another. forgive me for not discussing them publicly.;-)
    >
    > perhaps "ulimit" could help here.

    Really? If I got a process which is unkillable, how can the kernel kill
    this process if it runs out of cpu-time?
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