i386/100279: ggatec write panic

[NAKANUMA Takashi]

>Number:         100279
>Category:       i386
>Synopsis:       ggatec write panic
>Confidential:   no
>Severity:       critical
>Priority:       low
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Jul 14 08:30:14 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     NAKANUMA Takashi
>Release:        6.1-RELEASE
>Organization:
>Environment:
FreeBSD ******* 6.1-RELEASE FreeBSD 6.1-RELEASE #0: Sun May  7 04:42:56 UTC 2006     root at opus.cse.buffalo.edu:/usr/obj/usr/src/sys/SMP  i386

>Description:
The server is a setting of read only. 
However, it seems to be able to write it from the client. 
It actually fails in writing, and the kernel panic is caused. 
>How-To-Repeat:
* Server(IP address: a.b.c.d)

$ cat /etc/gg.exports
x.y.z.w/32 RO /dev/ad0s1e
$ sudo ggated

* client(IP address: x.y.z.w)

# ggatec create -o ro a.b.c.d /dev/ad0s1e
ggate0
# mount /dev/ggate0 /mnt
# cd /mnt/
# cp -p /etc/motd .
# head -1 motd
FreeBSD 6.1-RELEASE (SMP) #0: Sun May  7 04:42:56 UTC 2006
>Fix:

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