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Date:      Wed, 02 Jul 1997 18:49:11 -0400
From:      Mike Tancsa <mike@sentex.net>
To:        "Riley J. McIntire" <rileyj@train.tgci.com>, freebsd-questions@FreeBSD.ORG
Subject:   Re: Core dump signal 11
Message-ID:  <3.0.2.32.19970702184911.00aaecd0@sentex.net>
In-Reply-To: <199707022221.PAA10403@train.tgci.com>

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At 03:24 PM 7/02/97 +0000, Riley J. McIntire wrote:
>Hi,
>
>On a 2.2.2-R machine I put together a few weeks ago and walked 
>away from for a while I just noticed:
>
>Jun 24 15:00:01 moat /kernal: pid 20869 (atrun), uid 0: exited on siganl
11 (core 
>dumped)
>
>I know I've seen "signal 11" discussed here, but can't find it in the 
>archives.  My recollection is that during a "make world" a signal 11 
>indicates bad memory, either ram or cache.  Is that indicated here?  
>Anything else?

SIG 11 could just be a poorly written program... Take for example

#include <stdio.h>
#include <time.h>
#include <sys/time.h>

void main(int argc, char **argv)
{
        long inval;

        inval=atol(argv[1]);
        printf("%s",ctime(&inval));


}

If you run this program and do not give it an argument, it will do a sig 11
coredump.  However, since the FreeBSD distribution is not poorly written,
and you start seeing SIG 11's on basic daemons and processes, I would start
looking at the hardware perhaps...

	---Mike
**********************************************************************
Mike Tancsa  (mike@sentex.net)           * To do is to be  -- Nietzsche
Sentex Communications Corp,              * To be is to do  -- Sartre 
Cambridge, Ontario                       * Do be do be do  -- Sinatra
(http://www.sentex.net/~mdtancsa)        *



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