Re: Forking shell bombs

Gene Heskett
2003-07-13T14:03:15Z

On Sunday 13 July 2003 05:10, Riley Williams wrote:
>Hi all.
>
>It sounds like what is required is some way of basically saying
>"Don't permit new processes to be created if CPU usage > 75%"
>(where the 75% is configurable but less than 100%).
>
Which would immediately cause problems for anyone running setiathome.
My cpu useage has been 100% for 5 years.

>Best wishes from Riley.
>---
> * Nothing as pretty as a smile, nothing as ugly as a frown.
>
> > -----Original Message-----
> > From: linux-kernel-owner@vger.kernel.org
> > [mailto:linux-kernel-owner@vger.kernel.org]On Behalf Of David
> > Ford Sent: Wednesday, July 09, 2003 4:08 PM
> > To: Ryan Underwood
> > Cc: linux-kernel@vger.kernel.org
> > Subject: Re: Forking shell bombs
> >
> > No such thing exists. I can have 10,000 processes doing nothing
> > and have a load average of 0.00. I can have 100 processes each
> > sucking cpu as fast as the electrons flow and have a dead box.
> >
> > Learn how to manage resource limits and you can tuck another
> > feather into your fledgeling sysadmin hat ;)
> >
> > david
> >
> > Ryan Underwood wrote:
> >> Hi,
> >>
> >> On Tue, Jul 08, 2003 at 04:43:18PM -0400, jhigdon wrote:
> >>> Have you tried this on any 2.5.x kernels? Just curious to see
> >>> what it does, I plan on giving it a go later.
> >>
> >> I haven't, but a previous poster indicated that they had
> >> (2.5.74) with the same results.
> >>
> >> I wonder if we could find an upper limit on the number of
> >> allowable processes that would leave the box in a workable
> >> state? Unfortunately, I don't have a spare box to test such
> >> things on at the moment. ;)
> >>
> >> Thanks,
>
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--
Cheers, Gene
AMD K6-III@500mhz 320M
Athlon1600XP@1400mhz 512M
99.26% setiathome rank, not too shabby for a WV hillbilly
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Copyright 2003 by Maurice Eugene Heskett, all rights reserved.