On Thu, 2005-03-24 at 03:44 +0900, aq wrote: > On Wed, 23 Mar 2005 10:05:43 -0800, Paul Jackson <[EMAIL PROTECTED]> wrote: > > > int main() { while(1) { fork(); fork(); exit(); } } > > > ... > > > the above forkbomb will stop quickly > > > > Yep. > > > > Try this forkbomb: > > > > int main() { while(1) { if (!fork()) continue; if (!fork()) continue; > > exit(); } } > > > > yep, that is better. but system can still be recovered by killall. > > a little "sleep" will render the system completely useless, like this: > > int main() { while(1) { if (!fork()) continue; if (!fork()) continue; > sleep(5); exit(0); } }
Interesting. With the patch I suggested earlier, reducing default max_threads to the half in kernel/fork.c, my system survived. (without touching /etc/security/limits.conf) Mail notification died because it couldn't start any new threads but that was the only thing that happened. -- Natanael Copa - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/