>Number: 3412

>Number:         3412
>Category:       port-alpha
>Synopsis:       incorrect use of long crashes netbsd/alpha
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    gnats-admin (GNATS administrator)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Mar 29 23:50:01 1997
>Last-Modified:
>Originator:     Ross Harvey
>Organization:
Avalon Computer Systems, Inc.
>Release:        NetBSD-current
>Environment:
System: NetBSD epsilon.ghs.com 1.2D NetBSD 1.2D (e) #5: Sat Mar 29 22:32:33 PST 1997 ross@epsilon.ghs.com:/bsd/ross/e alpha

>Description:
	Adding "pseudo-device ipfilter 1" to netbsd/alpha will
	cause it to crash when ifconfig turns on the interface.

	Ipfilter code in netinet/fil.c uses pointer arithmetic to
	effectively make structure-to-scalar casts. It uses long when
	it really wants an int32 and gets alignment faults that crash
	netbsd/alpha. General 64 bit problem, not exactly alpha.

>How-To-Repeat:
	Add pseudo-device ipfilter 1. Boot your alpha. 2. Try to come
	up multiuser. The first packet or so will halt everything.

>Fix:
	Apply patch...