Re: interactive task starvation

[Willy Tarreau <willy@w.ods.org>]

On Tue, Mar 21, 2006 at 10:14:22AM +0100, Ingo Molnar wrote:
> 
> * Willy Tarreau <willy@w.ods.org> wrote:
> 
> > 
> > On Tue, Mar 21, 2006 at 08:51:38AM +0100, Mike Galbraith wrote:
> > > On Tue, 2006-03-21 at 07:47 +0100, Willy Tarreau wrote:
> > > > Hi Mike,
> > > 
> > > Greetings!
> > 
> > Thanks for the details,
> > I'll try to find some time to test your code quickly. If this fixes this
> > long standing problem, we should definitely try to get it into 2.6.17 !
> 
> the time window is quickly closing for that to happen though.

Ingo, Mike,

it's a great day :-)

Right now, I'm typing this mail from my notebook which has 8 instances of
my exploit running in background. Previously, 4 of them were enough on this
machine to create pauses of up to 31 seconds. Right now, I can type normally,
and I simply can say that my exploit has no effect anymore ! It's just
consuming CPU and nothing else. I also tried to write 0 to grace_g[12] and
I find it even more responsive with 0 in those values. I've not had time to
do more extensive tests, but I can assure you that the problem is clearly
solved for me. I'd like Grant to test ssh on his firewall with it too.

Congratulations !
Willy