Subject: Re: Division by zero doesn't raise SIGFPE
To: Martin Husemann <martin@duskware.de>
From: Min Sik Kim <minskim@bawi.org>
List: current-users
Date: 12/16/2003 12:03:29
On Tue, 16 Dec 2003 10:17:52 -0600
Min Sik Kim <minskim@bawi.org> wrote:

> On Tue, 16 Dec 2003 08:18:39 +0100
> Martin Husemann <martin@duskware.de> wrote:
> 
> > On Mon, Dec 15, 2003 at 07:42:21PM -0600, Min Sik Kim wrote:
> > > A couple more programs that hang, in case they help.
> > 
> > I completely updated my i386 system overnight to -current from sources cvs
> > updated when this thread came up.
> > 
> > It still works for me, and ...
> > 
> > > ================================
> > > #include <stdlib.h>
> > > #include <signal.h>
> > > #include <unistd.h>
> > > 
> > > static volatile int handler_done = 0;
> > > 
> > > void handler(int sig)
> > > {
> > >     handler_done = 1;
> > >     return;
> > > }
> > > 
> > > int main(int argc, char *argv[])
> > > {
> > >   signal(SIGUSR1, handler);
> > >   kill(getpid(), SIGUSR1);
> > >   while (!handler_done)
> > >     /*nop*/;
> > >   exit(0);
> > > }
> > > ================================
> > 
> > Cleanly exits imediately
> > 
> > > ================================
> > > #include <termcap.h>
> > > 
> > > main()
> > > {
> > >     int r = tgetent((char*)0, "vt100");
> > >     return r;
> > > }
> > > ================================
> > 
> > Dies with segmentation fault and dumps core.
> 
> Thanks for testing them.  I also have another machine with 1.6ZF,
> where I got the same results as yours.

A bit more info and correction.  It happens only when I work under
GNOME-2.4 environment.  If I use twm, no such problem.  It's also fine
when I remotely connect to the machine, even if gnome-session is
running.  The machine with 1.6ZF has exactly the same problem.

-- 
 Min Sik Kim