Re: tasking programs built with GNAT insensitive to SIGTERM

["James S. Rogers" <jimmaureenrogers@worldnet.att.net>]

"David C. Hoos" <david.c.hoos.sr@ada95.com> wrote in message
news:mailman.12.1043862309.30820.comp.lang.ada@ada.eu.org...
>
> ----- Original Message -----
> From: "Oliver Kellogg" <okellogg@freenet.de>
> Newsgroups: comp.lang.ada
> To: <comp.lang.ada@ada.eu.org>
> Sent: Wednesday, January 29, 2003 9:04 AM
> Subject: tasking programs built with GNAT insensitive to SIGTERM
>
>
> > Hi,
> >
> > Under Linux, how come tasking programs built with GNAT
> > (3.2, but other versions as well) don't react to
> > "kill -TERM" ?
>
> Have you tried kill -KILL?  Is it possible that the tasking runtime is
> setting the program up to ignore SIGTERM?
>
> Another possibility is that because GNAT tasking is using Linux
> threads, not all threads are receiving the signal. You can insure
> that all signals in a process group receive a signal by specifying
> the negative of the process group id in place of the process id
> in the kill command.
>
> David
> >
> > Is there a trick to make them killable?
> >
> > See also http://gcc.gnu.org/cgi-bin/gnatsweb.pl,
> > bug number 9480.
> >
> > Thanks,
> >
> > Oliver

A discussion of signals and Linux Threads on comp.programming.threads
indicates that Linux Threads are broken regarding handling signals.
This appears to have revealed the same weakness.

Jim Rogers