re: port-i386/39299: FPU use in signal handlers is unsafe

[matthew green <mrg%eterna.com.au@localhost>]

The following reply was made to PR port-i386/39299; it has been noted by GNATS.

From: matthew green <mrg%eterna.com.au@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: port-i386-maintainer%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
    netbsd-bugs%netbsd.org@localhost, M.Drochner%fz-juelich.de@localhost
Subject: re: port-i386/39299: FPU use in signal handlers is unsafe
Date: Tue, 26 Oct 2010 04:41:33 +1100

 > The following reply was made to PR port-i386/39299; it has been noted by 
 > GNATS.
 > 
 > From: David Holland <dholland-bugs%netbsd.org@localhost>
 > To: gnats-bugs%NetBSD.org@localhost
 > Cc: 
 > Subject: Re: port-i386/39299: FPU use in signal handlers is unsafe
 > Date: Mon, 25 Oct 2010 01:44:02 +0000
 > 
 >  On Wed, Aug 06, 2008 at 02:35:01PM +0000, 
 > M.Drochner%fz-juelich.de@localhost wrote:
 >   > When a signal handler is called, the FPU is in the state as the
 >   > main program left it. In particular, there can be data on the
 >   > stack which causes that the stack overflows early.
 >  
 >  I've been seeing the overt symptom of this again recently (teleporting
 >  mouse pointer) - anyone else?
 
 the touchpad on my laptop jumps around a bit, but not quite in the
 same way it used to.  instead of jumping to the left always, it just
 sometimes ends up elsewhere on the screen.
 
 
 .mrg.