Re: kill -9 <pid of X>

yodaiken@chelm.cs.nmt.edu
Thu, 13 Aug 1998 05:47:53 -0600

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In reply to: Olaf Titz: "Re: kill -9 <pid of X>"

On Thu, Aug 13, 1998 at 02:12:45PM +0200, Olaf Titz wrote:
> > Why is your X server in a tight loop with signals blocked?
>
> Bacause of a bug in it? ;-)
>
> > For example, it _never_ makes any sense to block SIGSEGV. For all I know,
>
> XFree86 and svgalib apps _must_ block/catch SIGSEGV precisely because
> that signal can occur at any time and exiting then leaves the hardware
> in an undefined state. Just like with SIGTERM. The fact that SIGSEGV

So the isn't the correct approach to _catch_ SIGSEGV and to do a safe exit
or for X to run as the child of a process that knows how to safe exit
when X die?
In fact, wouldn't is be reasonable to have a collection of X parents that
would save video state, fork/exec X and take care of cleanup? These
would be small, easy to debug programs, as far as I can tell.

---------------------------------
Victor Yodaiken
Department of Computer Science
New Mexico Institute of Mining and Technology
Socorro NM 87801
Homepage http://www.cs.nmt.edu/~yodaiken
PowerPC Linux page http://linuxppc.cs.nmt.edu
Real-Time Page http://rtlinux.org

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