The following reply was made to PR port-xen/29887; it has been noted by GNATS.

From: Roland Illig <rillig@NetBSD.org>
To: Ignatios Souvatzis <is@netbsd.org>
Cc: Martin Husemann <martin@duskware.de>,
	YAMAMOTO Takashi <yamt@mwd.biglobe.ne.jp>, jhawk@MIT.EDU,
	gnats-bugs@netbsd.org, port-xen-maintainer@netbsd.org,
	netbsd-bugs@netbsd.org, tech-userlevel@netbsd.org
Subject: Re: port-xen/29887: sysctl kern.consdev coredumps
Date: Thu, 23 Jun 2005 19:12:17 +0200

 Ignatios Souvatzis wrote:
 > On Thu, Jun 23, 2005 at 09:23:11AM +0200, Martin Husemann wrote:
 > 
 >>On Thu, Jun 23, 2005 at 12:19:47PM +0900, YAMAMOTO Takashi wrote:
 >>
 >>>i meant "because the idea to produce (null) and suppress coredump is
 >>>fundamentally bad."
 >>
 >>I agree. We would not start mapping a userspace address at VA 0 again, to stop
 >>dereferences of NULL pointers to core, right?
 > 
 > 
 > Maybe applications that want (null) to be printed should mmap a page
 > starting with the string "(null)" to that address. ;-)
 
 Cool. That really works (on i386). Never thought it would. :)
 
 Roland