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World Community Grid Forums
Category: Support
Forum: BOINC Agent Support
Thread: Graphics app crashes on Linux |
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Thread Status: Active Total posts in this thread: 2
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adriverhoef
Master Cruncher The Netherlands Joined: Apr 3, 2009 Post Count: 2346 Status: Offline Project Badges: 
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(Thread continued from Beat Test forum thread)
----------------------------------------That could be it. A couple of other things to check if you want. First the graphics applications are dynamically linked so you can run the ldd command against the graphics application to make sure you have all the needed libraries. Second are you able to push the view graphics button but it just closes instantly or is that button greyed out for you? If it is the former all graphics app should write a file "stderrgfx.txt " to the slot directory. There may or may not be some helpful info in there if it is launching and exiting immediately. Thanks, armstrdj Since I'm probably seeing the same problem on my Linux system, I'm continuing the thread here.  When I have the graphical boincmgr program opened, there is a View Graphics button that can be activated after clicking some of the running tasks. When I do that, a window opens very shortly with a border, but nothing inside the window, and immediately closes again. A few seconds later a notification appears about a AVC denial: New SELinux security alert. The contents of the SETroubleshoot Details Window: SELinux is preventing abrt-action-gen from read access on the file wcgrid_zika_gfx_7.20_x86_64-pc-linux-gnu. I can run the graphics app standalone from any directory: $ ls -l /var/lib/boinc/projects/www.worldcommunitygrid.org/../../projects/www.worldcommunitygrid.org/wcgrid_zika_gfx_7.20_x86_64-pc-linux-gnuWhen I do that, a window opens quickly with a border with nothing inside and closes immediately. A file "stderrgfx.txt" is left in the current directory: -rw-rw-r--. 1 adri 1686 Jun 25 14:16 stderrgfx.txtIts contents: $ cat stderrgfx.txt This happens when running it as a normal user. I can't run the program as administrative user 'boinc', so I will try it as root now. # cd /var/lib/boinc/slots/7 And presto! A window opens with a graphical app inside its borders ...  And it doesn't close immediately!  Could it be some permissions problem? PS I can even run the graphic app when there is no science running in the slots directory: [7]# pwdA window with a border opens shortly and closes immediately. So, basically the same thing happens when running it as a normal user. But ... running it from the Boinc Manager doesn't yield a file stderrgfx.txt in the slots directory. So, that's probably a related permissions problem. EDIT: By the way, when root successfully runs the graphic app, two files are created in the slots directory: [0]# ls -l *gfx* [Edit 3 times, last edit by adriverhoef at Jun 25, 2019 1:06:36 PM] |
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nanoprobe
Master Cruncher Classified Joined: Aug 29, 2008 Post Count: 2998 Status: Offline Project Badges: 
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Just wondering why you're so concerned about graphics here?
---------------------------------------- To run them wastes CPU cycles that could be better used for the WUs. 
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