Re: FVWM: Strange interaction between fvwm and matlab

From: Robert L. Knighten <knighten_at_zeus.knighten.org>
Date: Fri, 3 May 2002 10:14:55 -0700

Dominik Vogt writes:
> On Thu, May 02, 2002 at 04:45:34PM -0700, Robert L. Knighten wrote:
> > I am encountering the following peculiar problem. I use the "MiniButtons" and
> > use one of them to start Matlab using
> >
> > *MiniButtons - matlab32c_icon.xpm Exec exec matlab
> >
> > When I do this I have the unfortunate effect that using control-c at the
> > Matlab command line, which should stop the currently executing Matlab command,
> > kills the X server and all programs running under X.
> >
> > If instead I use
> >
> > *MiniButtons - matlab32c_icon.xpm Exec exec xterm -e matlab
> >
> > everything works fine, except of course I have an extra xterm hanging around.
> >
> > The same behavior occurs if I invoke matlab from a menu.
>
>
> Strange. What fvwm version is this? Does any of the programs
> leave a core dump on the disk?
>

Fvwm2 version 2.4.6. No core files are created. None of the log files show
anything odd. Here are the messages from X:

XFree86 Version 4.2.0 / X Window System
(protocol Version 11, revision 0, vendor release 6600)
Release Date: 23 January 2002
        If the server is older than 6-12 months, or if your card is
        newer than the above date, look for a newer version before
        reporting problems. (See http://www.XFree86.Org/)
Build Operating System: Linux 2.4.18-1mdksmp i686 [ELF]
Module Loader present
Markers: (--) probed, (**) from config file, (==) default setting,
         (++) from command line, (!!) notice, (II) informational,
         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/XFree86.0.log", Time: Fri May 3 10:08:34 2002
(==) Using config file: "/etc/X11/XF86Config-4"

waiting for X server to shut down Terminal: fatal IO error 32 (Broken pipe) or KillClient on X server ":0.0"
X connection to :0.0 broken (explicit kill or server shutdown).
X connection to :0.0 broken (explicit kill or server shutdown).
X connection to :0.0 broken (explicit kill or server shutdown).
X connection to :0.0 broken (explicit kill or server shutdown).
Connection lost to X server `:0.0'
X connection to :0.0 broken (explicit kill or server shutdown).

As you can see the only thing odd is that the X connection is repeatedly
killed. I have now found a problem with the use of control-c in Matlab when
it is started using a button in KDE, so I strongly suspect there is something
wrong in Matlab.


> > The people at Mathworks (home of Matlab) are trying to reproduce and then
> > understand this problem, but so far there has been no success. Does this ring
> > a bell with any of you?
>
> Bye
>
> Dominik ^_^ ^_^
>
> --
> Dominik Vogt, email: d.vogt_at_lifebits.de
> LifeBits Aktiengesellschaft, Albrechtstr. 9, D-72072 Tuebingen
> fon: ++49 (0) 7071/7965-0, fax: ++49 (0) 7071/7965-20

-- Bob

Robert L. Knighten
15580 S.W. Bridle Hills Drive
Beaverton, OR 97007
(503) 626-4965
Robert_at_Knighten.org

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Received on Fri May 03 2002 - 12:15:43 BST

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