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Article #3630Re: CRASHME crashes NS 3.0 in less than a second!!!
From: Matthew Pharr
Date: Thu, 01 Oct 1992 11:34
Date: Thu, 01 Oct 1992 11:34
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1929 bytes
In article <BvFunJ.E1H@gate.demon.co.uk> paul@seer.demon.co.uk (Paul Lynch) writes: >In article <1992Sep30.152220.18225@pilhuhn.ka.sub.org> >jr@pilhuhn.ka.sub.org (Jochen Richter) writes: >> The user program CRASHME that is available from some ftp-servers >> crashes NS 3.0 in less than a second!!! That is the depressing >> result of my tests. It's a shame that NS hasn't been tested with >> this in many magazines demonstrated user program. It produces >> many different system exceptions that have to be handled properly >> by the kernel... >> After the crash you can't even reach NMI! You have to use >> <Command><Alternate>*. >> >> Shame!!! >> > >So what. Almost every Unix system is crashed in < 2 seconds by Crashme. > If I remember correctly, a fair number of Unix systems -aren't- crashed by CrashMe. Anyway, what CrashMe does is fork as many processes as it can and write to memory randomly, in the hopes of destroying something important that the o/s wasn't protecting properly. I would assume that the problem NeXTs have with this is the same old one that comes up when you fork() too many processes or threads--the panic out of nowhere and lock-up that was discussed earlier in the thread about what happens when you try to write a multi-threaded app with, say, 200 threads... matt
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Newsgroups: comp.sys.next.misc Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!darwin.sura.net!jvnc.net!yale.edu!cs.yale.edu!pharr-matthew From: pharr-matthew@CS.YALE.EDU (Matthew Pharr) Subject: Re: CRASHME crashes NS 3.0 in less than a second!!! Message-ID: <1992Oct1.113425.27867@cs.yale.edu> Sender: news@cs.yale.edu (Usenet News) Nntp-Posting-Host: zoo-gw.cs.yale.edu Organization: Yale University Computer Science Dept., New Haven, CT 06520-2158 References: <1992Sep30.152220.18225@pilhuhn.ka.sub.org> <BvFunJ.E1H@gate.demon.co.uk> Date: Thu, 1 Oct 1992 11:34:25 GMT Lines: 30