Re: [PATCH v3 3/6] memcg: Simplify mem_cgroup_force_empty_listerror handling

[Andrew Morton]

On Tue, 30 Oct 2012 11:35:59 +0100
Michal Hocko <mhocko@xxxxxxx> wrote:

> > If the kernel is uniprocessor and the caller is SCHED_FIFO: ad infinitum!
>
> ...
>
> Can we consider this as a corner case (it is much easier to kill a
> machine with SCHED_FIFO than this anyway) or the concern is really
> strong and we should come with a solution before this can get merged?

Sure.  SCHED_FIFO can be used to permanently block all kernel threads
which pretty quickly results in a very sick kernel.  My observation was
just a general moan about the SCHED_FIFO wontfix problem :)

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/