Bug 487616

Summary: Apllication crashes when starting a server from the Visual Program Editor
Product: [Fedora] Fedora Reporter: Sébastien Le Roux <s.le-roux>
Component: dxAssignee: Dominik 'Rathann' Mierzejewski <dominik>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: low    
Version: 10CC: dominik, mtreinish, s.le-roux, tristanmoody
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: 4.4.4-9.fc10 Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2009-11-27 22:00:48 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
The error message that can be displayed by dx
none
Console output when DX crashes as I open a file in the VPE. none

Description Sébastien Le Roux 2009-02-27 00:57:57 UTC
User-Agent:       Mozilla/5.0 (X11; U; Linux x86_64; fr; rv:1.9.0.6) Gecko/2009020410 Fedora/3.0.6-1.fc10 Firefox/3.0.6

When starting OpenDX using the Visual Program Editor (VPE) with the command 'dx -uionly' the way to work either to develop or to use a visualization utility is first to open the visualization utility and then to click on the 'connection -> start server' link, and then to start the server (usually the server name is set automatically by dx). 
Illustration of this procedure here: 
http://rings-code.sourceforge.net/index.php?option=com_content&view=article&id=62%3Aviz-strong&catid=38%3Ahowto&Itemid=63&limitstart=3

Using the actual F10 dx rpm doing this simple action is impossible, immediately after clicking on connect in the 'start server' dialog box 2 things can happen:
 
1) if this was the first time you tried to do this then an error message from DX is displayed. This message says into{}:
{Connect to server **** failed
Starting DX executive
4322: signal 11 caught
/usr/bin/dx: line 1793: 4322 Abandon    "/usr/lib64/dx/bin_linux/dxexec" -r -B
}
and the visualization application does not work and DX will close or freeze immediately.

2) after closing DX and restarting again the 'dx -uionly' and re-doing the same
manipulation, then no more message is displayed but DX freeze completely.

Note: to obtain the error message again I need to restart the computer ... probabely restarting the X server will be enough ... I don't know.

The fact is the VPE is the most important part of OpenDX since even when using the standard user interface the VPE is immediately called if something goes wrong (ie. bad input in a 'file selector' dialog box.) and then (so far) in F10 DX will freeze.

Reproducible: Always

Steps to Reproduce:
1. enter 'dx -uionly' in the command line to open the VPE
2. open any visual example program
3. click on 'connection' -> 'start server'
4. start the server by clicking on 'connect'
Actual Results:  
DX is immediately closing or freezing 

Expected Results:  
The visualization server start correctly, and it possible to continue to use DX.

Comment 1 Sébastien Le Roux 2009-02-27 01:02:30 UTC
By the way I have successfully compiled a suitable version of DX running on the same Fedora 10 computer. 
So I do not find any other explanation than a problem with the F10 rpm.

Comment 2 Sébastien Le Roux 2009-02-28 20:11:54 UTC
The problem also affects the Fedora 11 release candidate RPMs

Comment 3 Sébastien Le Roux 2009-03-04 05:05:04 UTC
Created attachment 333973 [details]
The error message that can be displayed by dx

The error message that can be displayed by dx

Comment 4 Matthew Treinish 2009-08-28 19:55:03 UTC
Created attachment 359113 [details]
Console output when DX crashes as I open a file in the VPE.

Comment 5 Matthew Treinish 2009-08-28 19:56:52 UTC
Comment on attachment 359113 [details]
Console output when DX crashes as I open a file in the VPE.

When I open the visual program editor, it loads fine. 

However when I load a visual program to work with, I receive a buffer overflow. 

This is probably a related issue.

Comment 6 Tristan Moody 2009-09-22 16:43:34 UTC
(In reply to comment #5)
> (From update of attachment 359113 [details])
> When I open the visual program editor, it loads fine. 
> 
> However when I load a visual program to work with, I receive a buffer overflow. 
> 
> This is probably a related issue.  

That issue is also posted here: https://bugzilla.redhat.com/show_bug.cgi?id=523678

Comment 7 Tristan Moody 2009-09-22 17:28:01 UTC
I downloaded the src rpm, built it locally and installed the locally build rpm, and the buffer overflow issue is gone.  I have no idea what is going on at this point.

Comment 8 Fedora Update System 2009-11-08 16:47:52 UTC
dx-4.4.4-9.fc10 has been submitted as an update for Fedora 10.
http://admin.fedoraproject.org/updates/dx-4.4.4-9.fc10

Comment 9 Fedora Update System 2009-11-10 17:52:53 UTC
dx-4.4.4-9.fc10 has been pushed to the Fedora 10 testing repository.  If problems still persist, please make note of it in this bug report.
 If you want to test the update, you can install it with 
 su -c 'yum --enablerepo=updates-testing update dx'.  You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F10/FEDORA-2009-11245

Comment 10 Bug Zapper 2009-11-18 09:53:11 UTC
This message is a reminder that Fedora 10 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 10.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '10'.

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to a later Fedora version prior to Fedora 10's end of life.

Bug Reporter: Thank you for reporting this issue and we are sorry that 
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Comment 11 Fedora Update System 2009-11-27 22:00:42 UTC
dx-4.4.4-9.fc10 has been pushed to the Fedora 10 stable repository.  If problems still persist, please make note of it in this bug report.