The following reply was made to PR kern/36601; it has been noted by GNATS.

From: Pavel Cahyna <pavel@NetBSD.org>
To: gnats-bugs@NetBSD.org
Cc: kern-bug-people@NetBSD.org, gnats-admin@NetBSD.org,
	netbsd-bugs@NetBSD.org
Subject: Re: kern/36601: Kernel Panic
Date: Thu, 12 Jul 2007 11:15:27 +0200

 On Tue, Jul 03, 2007 at 09:15:01PM +0000, rthille@thille.org wrote:
 > 	Kernel panic running 'perl' (probably running qpsmtpd)
 > 	output on serial console:
 > 	    trap: address error (load or I-fetch) in kernel mode
 > 	    status=0x7c03, cause=0x10, epc=0x8002e110, vaddr=0x8452e672
 > 	    pid=11628 cmd=perl usp=0x7fffdae0 ksp=0xcc85fc48
 > 	    Stopped in pid 11628.1 (perl) at        netbsd:tcp_sack_option+0x110:   lw      a
 > 	    0,0(s1)
 
 I think your problem is decribed in PR 34751 and should be fixed already.
 Try a 4.0_BETA2 kernel.