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Duke Smith (duke@webiq.com)
Thu, 02 Jan 1997 23:34:13 -0700 

Message-Id: <32CCA865.6276@webiq.com>
Date: Thu, 02 Jan 1997 23:34:13 -0700
From: Duke Smith <duke@webiq.com>
Subject: Re: [mSQL] More on "What's a Sig 10"

Rafael Alvarado wrote:
>
> OK, I tried to run relshow on some tables I had created with msql 1.16 and
> here is what I got:
>
> cti: /www/cgi-local/mbase $ relshow MediaBase
>
> Database = MediaBase
>
> +---------------------+
> | Table |
> +---------------------+
> | images |
> | impressionists |
> | numbers |
> | site_info |
> | table_info |
> +---------------------+
>
> cti: /www/cgi-local/mbase $ relshow MediaBase images
>
> Hit by a sig 11
>
> Forced server shutdown due to bad signal!
>
> Forcing close on Socket 7
> ERROR : Couldn't find images in MediaBase!
>
> ----------END OF QUOTE----------
>
> What could be the cause of this? Do I need to recreate my tables for 2.0?
>
> Again, my version and config info is as follows:
>
> Version Details :-
>
> msqladmin version 2.0 Beta 1
> mSQL server version 2.0 Beta 1
> mSQL protocol version 22
> mSQL connection Localhost via UNIX socket
> Target platform Solaris-2.5.1-Sparc
>
> Configuration Details :-
>
> Default config file /home/mbase/msql.conf
> TCP socket 4333
> UNIX socket /home/mbase/msql2.sock
> mSQL user mbase
> Admin user mbase
> Install directory /home/mbase
> PID file location /home/mbase/msql2d.pid
>
>
> Raf Alvarado, Instructional Technology Advisor
> Teaching + Technology Initiative
> 204 Wilson Hall, University of Virginia
> (804) 243-6597, rca2t@Virginia.EDU
>
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Here is a piece of the standard Unix header file "signal.h", which
defines
the standard signals. SIG 11 (SIGSEGV) "segmentation violation" says
that
a memory access caused a memory fault by referencing memory outside the
current code segment. Not sure what that means in your case, but that's
what
a sig 11 is. What version of Unix are you using? What type of machine?

#define SIGHUP 1 /* hangup */
#define SIGINT 2 /* interrupt (rubout) */
#define SIGQUIT 3 /* quit (ASCII FS) */
#define SIGILL 4 /* illegal instruction (not reset when caught) */
#define SIGTRAP 5 /* trace trap (not reset when caught) */
#define SIGIOT 6 /* IOT instruction */
#define SIGABRT 6 /* used by abort, replace SIGIOT in the future */
#define SIGEMT 7 /* EMT instruction */
#define SIGFPE 8 /* floating point exception */
#define SIGKILL 9 /* kill (cannot be caught or ignored) */
#define SIGBUS 10 /* bus error */
#define SIGSEGV 11 /* segmentation violation */
#define SIGSYS 12 /* bad argument to system call */
#define SIGPIPE 13 /* write on a pipe with no one to read it */
#define SIGALRM 14 /* alarm clock */
#define SIGTERM 15 /* software termination signal from kill */
#define SIGUSR1 16 /* user defined signal 1 */
#define SIGUSR2 17 /* user defined signal 2 */
#define SIGCLD 18 /* death of a child */
#define SIGPWR 19 /* power-fail restart */
#define SIGWINCH 20 /* window change */

====================================================
  Duke Smith, President & CTO, WebIQ, Limited
    (303) 743-7213 VOX; (303) 745-4898 FAX
====================================================
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