kern/72253: Creating multiple ggate devices with same unit# panics kernel

[ivoras at fer.hr (Ivan Voras)]

>Number:         72253
>Category:       kern
>Synopsis:       Creating multiple ggate devices with same unit# panics kernel
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Oct 02 11:10:19 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator:     Ivan Voras
>Release:        FreeBSD 5.3-BETA5 i386
>Organization:
>Environment:
System: FreeBSD lara.cc.fer.hr 5.3-BETA5 FreeBSD 5.3-BETA5 #2: Wed Sep 22 12:29:50 CEST 2004 ivoras_(_at_)_lara_(_dot_)_cc_(_dot_)_fer_(_dot_)_hr:/usr/obj/usr/src/sys/LARA i386


	
>Description:
Attempted creating multiple ggate devices with same unit number results in kernel panic.
	
>How-To-Repeat:
	
# dd if=/dev/zero of=/tmp/thingie bs=1m count=10
# ggatel create -u0 /tmp/thingie
# ggatel create -u0 /tmp/thingie
(repeat above command multiple times, after a while, kernel panics in
current process="swi5: clock sio")
>Fix:
Don't do that.
	


>Release-Note:
>Audit-Trail:
>Unformatted: