Re: [PATCH] O17int

Con Kolivas
2003-08-20T01:16:46Z

On Wed, 20 Aug 2003 02:39, Måns Rullgård wrote:
> Con Kolivas <kernel@kolivas.org> writes:
> > Food for the starving masses.
> >
> > This patch prevents any single task from being able to starve the
> > runqueue that it's on. This minimises the impact a poorly behaved
> > application or a malicious one has on the rest of the system. If an
>
> I have to disagree. Open a file of a few hundred lines in XEmacs and
> do a regexp search for "^[> ]*-*\n\\([> ]*.*\n\\)*[> ]*foo". The
> system will more or less freeze. It's a very nasty regexp, and it's
> an error to try to use it, but it still shouldn't freeze the system.

Reasonably sure this is a variation on the starvation which O17 won't address.
Please top/vmstat/profile this and I'll look into it. There is potential for
starvation without using up full timeslices and this may be it.

Con