Bug 743191

Summary:	Network broken caused VNC server X11 hang
Product:	Red Hat Enterprise Linux 4	Reporter:	Thomas <wuens>
Component:	vnc	Assignee:	Adam Tkac <atkac>
Status:	CLOSED WONTFIX	QA Contact:	qe-baseos-daemons
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	4.4	CC:	ovasik
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-10-06 12:07:08 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description Thomas 2011-10-04 06:47:57 UTC

Description of problem:
While the network broken between the VNC server and the VNC client, the VNC server's X11 desktop froze under the condition of big amount of screen fresh/delta. 

Version-Release number of selected component (if applicable):
RealVNC free edition 4.0, vnc.so 

How reproducible:


Steps to Reproduce:
1. Establish a VNC session between a VNC server and a VNC client. 
2. Open a xterm on the VNC server, 
   then enlarge the opened xterm window as large as possible
3. In the opened xterm window:
   login as user 'root'                      : $ su -
   execute command to let screen keep update : # ls -l /
4. Pull off network cable from the VNC client.   
  
Actual results:
The VNC Server window froze immediately or keep updating for a short period then window froze.

Expected results:
The VNC Server window should keep updating, no matter the client session was broken or not.  

Additional info:

Comment 1 Adam Tkac 2011-10-06 12:07:08 UTC

Since RHEL4 is in the 3rd support phase, only critical bugs are fixed. Please update to newer RHEL and check if this problem is still present there. If yes, please reopen this ticket.

Closing.