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

[David Holland <dholland-bugs%netbsd.org@localhost>]

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?
 
 -- 
 David A. Holland
 dholland%netbsd.org@localhost