Date: Thu, 11 Dec 2008 14:45:47 -0200 From: "Java Nunes" <javanunes@gmail.com> To: freebsd-bugs@freebsd.org Subject: fork bomb no respects limits in freebsd 7.0, freebsd is buged ? Message-ID: <425f5fc40812110845j71fdbd2fv43a518c39844fd75@mail.gmail.com>
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Hi,
#>cat /boot/loader.conf
kern.maxfiles="3000"
kern.maxproc="666" <<<<<<<<<---------
root@bbb9 #>limits
Resource limits (current):
cputime infinity secs
filesize 5242880 kB
datasize 5242880 kB
stacksize 524288 kB
coredumpsize 1022976 kB
memoryuse 1024000 kB
memorylocked 683008 kB
maxprocesses 599 <<<<<<<<<<-
openfiles 677
sbsize infinity bytes
vmemoryuse 693248 kB
in /etc/login.conf
:nologin=/var/run/nologin:\
:cputime=unlimited:\
:datasize=5G:\
:stacksize=667M:\
:memorylocked=667M:\
:memoryuse=1000M:\
:filesize=5G:\
:coredumpsize=999M:\
:openfiles=677:\
:maxproc=666:\ <<<<<<<<<<-
:sbsize=unlimited:\
:vmemoryuse=677M:\
:priority=0:\
:idletime=2m\
:ignoretime@:\
:umask=022:
su - bozo
vi bomb.c
#include <unistd.h>
int main(int argc, char* argv[])
{
while(1)
fork();
return 0;
}
~ gcc bomb.c -o bomb
~./bomb
and my freebsd box shutdown with this error:
maxproc limit exceeded by uid 1001, please see tuning(7) and login.conf(5).
maxproc limit exceeded by uid 1001, please see tuning(7) and login.conf(5).
maxproc limit exceeded by uid 1001, please see tuning(7) and login.conf(5).
maxproc limit exceeded by uid 1001, please see tuning(7) and login.conf(5).
panic: get_pv_entry : increase vm.pmap.shgperproc
cpuid =0
uptime 19m
physical memory: 1024MB
Dumping 923 blah blah blha!
Automatic reboot in 15 secounds = press blah blha blha lol!
fBSD gives memory in spite of all limits. Is there any limit, which can stop
adding memory for that forks ?
limit it does not function in bsd?
:0
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