Board index ‹ FlightGear ‹ Support

The final reference count was 1

All general support: help on flying, installation, hardware, getting online etc. There are lots of users and developers to help you out.
Forum rules
In order to help you, we need to know a lot of information. Make sure to include answers to at least the following questions in your initial post.

- what OS (Windows Xp/Vista, Mac etc.) are you running?
- what FlightGear version do you use?
- what graphics card do you have?
- does the problem occur with any aircraft, at any airport?
- where did you download your aircraft/scenery from?
- is there any output printed to the console (black window)?
- copy&paste your commandline (tick the "Show commandline box on the last page of FGRun or the "Others" section on the Mac launcher).

Please report any bugs not specific to an aircraft on the issue tracker.
To run FlightGear on old computers with bad OpenGL support, please take a look at this wiki article.

Note: If you did not get a reponse, even after 7 days, you may want to check out the FlightGear mailing lists to ask your question there.
Post a reply

The final reference count was 1

Postby KL-666 » Sat Mar 21, 2015 8:19 pm

Quite regularly fg crashes and the log ends with the following 2 messages

Code: Select all
opengl:4:..\..\..\flightgear\src\Viewer\fg_os_osgviewer.cxx:193:Warning: deleting still referenced object 000000025A2FA960 of type 'class osg::Referenced * __ptr64'

opengl:4:..\..\..\flightgear\src\Viewer\fg_os_osgviewer.cxx:193:         the final reference count was 1, memory corruption possible.


This has been going on since 3.2 and now in 3.4.0. Is there some C garbage collection problem?

I am on win 8.1, i7 8 threads, 12gb mem, gtx670mx. Using ALS and detailed weather, and thread model CullThreadPerCameraDrawThreadPerContext.

Kind regards, Vincent
KL-666
 
Posts: 781
Joined: Sat Jan 19, 2013 2:32 pm
Top

Re: The final reference count was 1

Postby Hooray » Sat Mar 21, 2015 8:26 pm

almost certainly, this is not a "GC" issue (RAII-based smart pointers don't really do garbage collection ...), but simply a race condition due to a number of bugs in FG, in an otherwise unmaintained component- for details, refer to the wiki - i.e. the yellow box at:

http://wiki.flightgear.org/Howto:Activa ... PU_support

Please feel free to file a corresponding bug report
Please don't send support requests by PM, instead post your questions on the forum so that all users can contribute and benefit
Thanks & all the best,
Hooray
Help write next month's newsletter !
pui2canvas | MapStructure | Canvas Development | Programming resources
Hooray
 
Posts: 12707
Joined: Tue Mar 25, 2008 9:40 am
Pronouns: THOU
Top

Re: The final reference count was 1

Postby KL-666 » Sat Mar 21, 2015 8:35 pm

Thanks Hooray,

I'll fly CullDrawThreadPerContext for a while. See what happens.

Kind regards, Vincent
KL-666
 
Posts: 781
Joined: Sat Jan 19, 2013 2:32 pm
Top

Re: The final reference count was 1

Postby KL-666 » Fri Jul 17, 2015 1:11 am

Well after a period CullDrawThreadPerContext with the same problem, i am now on the simplest DrawThreadPerContext for a while. The problem keeps occurring. Less, but still. I do not want to go to single threaded with my 8 cpu threads, do i?

Kind regards, Vincent
KL-666
 
Posts: 781
Joined: Sat Jan 19, 2013 2:32 pm
Top
Post a reply

Return to Support

Who is online

Users browsing this forum: No registered users and 4 guests

Powered by phpBB® Forum Software © phpBB Group