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Date:      Thu, 3 Jan 2002 22:37:12 -0800 (PST)
From:      Yasuhiko Okada <dat0107@yahoo.co.jp>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   misc/33523: XV application cannnot be transfered through ssh for FreeBSD4.4. 
Message-ID:  <200201040637.g046bCU60137@freefall.freebsd.org>

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>Number:         33523
>Category:       misc
>Synopsis:       XV application cannnot be transfered through ssh for FreeBSD4.4.
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Jan 03 22:40:00 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Yasuhiko Okada
>Release:        FreeBSD4.4-RELEASE
>Organization:
Kinki University
>Environment:
FreeBSD XXX.XXX 4.4-RELEASE FreeBSD 4.4-RELEASE #0: Sun Dec 30 10:19:49 JST 2001 
>Description:
Now I am using the openssh compiled with patch SA01-64 to transfer the X application. X Server machine works with FreeBSD4.4-RELEASE.
The transportation of data of [XV] application cannot be succeded.
When I try to use xv through ssh, I receive error message [sengmentation fault].
Other applications like mule,kterm,netscape work well through ssh, but sometimes the netscape also stops during the web-surfing. 
This problem occures with PentiumPro166MHz and DX4-66MHz machine. However this doesn't occure with PentiumIII-700MHz machine and Pentium-90MHz machine installed with FreeBSD4.4(same OS).
I am not sure whether this problem depends on the machine or not.
I checked with 2 different NIC cards (xl0, de0). PentiumPro166MHz machine can't received the data of xv with both cards,
but Pentium90MHz machine could work successfully with both cards.

It seems this problem occures when large size of data is transfered.


>How-To-Repeat:
)Install the FreeBSD4.4-RELEASE to the target machine with NIC (xl0 or de0).
)Install the FreeBSD4.4-RELEASE to the X-Server machine with NIC (rl0 RealTek 8139)
)Configure the setting to use openssh for Xforwarding

>Fix:
This problem didin't occur with following environment.

)Install the FreeBSD4.3-RELEASE to PentiumPro166Mhz machine with NIC(xl0 or de0).
)Patch the machine for the openssh security

X-Server works with FreeBSD4.4-RELEASE and NIC (rl0).

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

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