Originally created by: aeitsch...@yahoo.de
What steps will reproduce the problem?
1.On some Linux-systems just start the Bell UH1
What is the expected output? What do you see instead?
The Bell UH1 should work without any problems. Instead on some Linux-
systems the heli begins to start shaking violently and finally crashing
FlightGear producing a lot of NaN-Errors and error-message:
Nasal runtime error: floating point error in math.atan2()
at /usr/share/FlightGear-2.0.0/Aircraft/UH-1/Nasal/uh1.nas, line 15
called from: /usr/share/FlightGear-2.0.0/Aircraft/UH-1/Nasal/uh1.nas,
line 228
called from: /usr/share/FlightGear-2.0.0/Aircraft/UH-1/Nasal/uh1.nas,
line 245
called from: /usr/share/FlightGear-2.0.0/Aircraft/UH-1/Nasal/uh1.nas,
line 387
This won't happen on win32-systems.
What version of the product are you using? On what operating system?
The latest from GIT or Helijah's page.
Ubuntu Lucid (10.04) built with OSG 2.6.8 and simgear 2.0. as an example.
Some other Linux distribution as well
Please provide any additional information below.
http://www.flightgear.org/forums/viewtopic.php?f=25&t=8229&start=15#p81449
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Originally posted by: anders.g... (code.google.com)@gmail.com
This could be due to subtle differences between floating point arithmetic using 387 or SSE instructions (or even optimization level).
I know that at one point a certain YASim aircraft would only converge on my system with
-mfpmath=sse in the CXXFLAGS and not with -mfpmath=387 (which IIRC was the default for my build).
Labels: Aircraft YASim
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Originally posted by: cumuluni... (code.google.com)@gmail.com
Is this still an issue?
Labels: Priority-Low
Status: Stalled
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Originally posted by: cumuluni... (code.google.com)@gmail.com
Not an issue on my 64bit Linux. Can we close this?
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Originally posted by: bre... (code.google.com)@gmail.com
May be related to issue #256, which was fixed some weeks ago and affected 32bit Linux systems with recent compilers (causing NaNs and lot's of subtle issues). Closing this issue now, since there was no feedback since it stalled in May. If anyone still sees this, please "reopen" - or file a new report.
Status: Expired
Related
Tickets:
#256