Sigsev error?

Hello every one, I am having a weird problem. I am trying to make a racing game. So far I have a basic scene with some scenery objects, and a few static objects. The problem arises when I try to add ore than one car (slightly modified com.jmemtest.physics.vehicle.Car). At 1 additional vehicle crashing is rare, at 2 additional vehicles it is common, and sometimes the physics goes nuts (wheels flying and such), and at 3 or more crashing is guaranteed.



The objects are created inside their own physics node, that are attached to a scene node. This scene node is finally attached to the root node of the main game state I use. The cars are attached to the root of the game state as well.



This is what I get:



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An unexpected error has been detected by Java Runtime Environment:

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#  SIGSEGV (0xb) at pc=0x6e2010ca, pid=18341, tid=1731197840

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Java VM: Java HotSpotâ„¢ Server VM (11.3-b02 mixed mode linux-x86)

Problematic frame:

C  [libodejava.so+0x600ca]  _Z11dCollideBTLP6dxGeomS0_iP12dContactGeomi+0x536

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An error report file with more information is saved as:

/home/misi/Documents/Eclipse Workspaces/DeskRacer/Desk Racer/hs_err_pid18341.log

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If you would like to submit a bug report, please visit:

http://java.sun.com/webapps/bugreport/crash.jsp

The crash happened outside the Java Virtual Machine in native code.

See problematic frame for where to report the bug.

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Any ideas what might cause this?