From owner-freebsd-questions Thu Mar 15 1:45:49 2001 Delivered-To: freebsd-questions@freebsd.org Received: from gwdu60.gwdg.de (gwdu60.gwdg.de [134.76.98.60]) by hub.freebsd.org (Postfix) with ESMTP id 69B0937B71C for ; Thu, 15 Mar 2001 01:45:46 -0800 (PST) (envelope-from kheuer@gwdu60.gwdg.de) Received: from localhost (kheuer@localhost) by gwdu60.gwdg.de (8.11.1/8.9.3) with ESMTP id f2F9jYM30959; Thu, 15 Mar 2001 10:45:34 +0100 (CET) (envelope-from kheuer@gwdu60.gwdg.de) Date: Thu, 15 Mar 2001 10:45:34 +0100 (CET) From: Konrad Heuer To: eric Cc: Subject: Re: Illegal instruction -- core dumped In-Reply-To: <200103150838.f2F8cEE80538@dsns.csie.nctu.edu.tw> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=X-UNKNOWN Content-Transfer-Encoding: QUOTED-PRINTABLE Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, 15 Mar 2001, eric wrote: > When I was running nessus in xwindow , the process is break out with > an error message : > Illegal instruction -- core dumped > > What does it mean ? Probably there's an error in the nessus code which causes the program counter to reference a memory address which stores data and not an instruction. Thus the processor gets an invalid machine instruction which can't be executed. Usually this happens when accidently overflowing internal data structures during program execution. This is a more general explanation. I can't help you in this special case (I don't know nessus). Regards Konrad Heuer Personal Bookmarks: Gesellschaft f=FCr wissenschaftliche Datenverarbeitung mbH G=D6ttingen http://www.freebsd.org Am Fa=DFberg, D-37077 G=D6ttingen http://www.daemonnews.o= rg Deutschland (Germany) kheuer@gwdu60.gwdg.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message