Date: Sun, 27 Feb 2005 18:11:57 -0800 From: "Ashwin Chandra" <ashcs@ucla.edu> To: <freebsd-hackers@freebsd.org> Subject: Priority Increasing Message-ID: <000801c51d3a$e1ac47c0$abe243a4@ash>
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Hi all,
Ive been trying to counter the malicious effects of a forkbomb by =
setting the forkbomb parent and children to a PRI_MAX priority, although =
this is not having any effect on the system load.
Basically in my code when I know which process is acting maliciously =
(forkbomb), I run the following simple code:
FOREACH_KSEGRP_IN_PROC(p, kg)
{
printf("old prio:%d", kg->kg_user_pri);
kg->kg_user_pri =3D PRI_MAX;
printf(" new prio:%d", kg->kg_user_pri);
}
When it prints out, the old prio was 180 and the new gets set to 255 =
although there is help to the system...the system is still under stress. =
Do you guys know any good ways of hacking the scheduler to make a =
process that is bad run MUCH MUCH less as to not overload the system?
Ash
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