[ODE] heightfield bug

[Oleh Derevenko]

Ok. I'll take a look this week-end.

Oleh Derevenko
-- ICQ: 36361783

  ----- Original Message ----- 
  From: Bram Stolk 
  To: ode-list 
  Sent: 28 вересня 2007 р. 07:11
  Subject: [ODE] heightfield bug


  Hi,

  I can reproduce the bug Jean reported:
  press 'b' 4 times rapidly in demo_heightfield, and it crashes.
  Same goes for 4 spheres.
  See below for call stack.

  This crash is not present in 0.8
  Unfortunately, 0.8.1-rc1 is no longer available at the SF files section.
  Can someone send me a copy, if you have one?

  The demo_heightfield.cpp code does not seem to have an obvious error.
  I think it is in ODE's heightfield code. 
  And it was probably introduced by Oleh's changes?

  Oleh, can you investigate this?

  thanks,

    Bram


  Program received signal SIGSEGV, Segmentation fault.
  [Switching to Thread -1223166240 (LWP 22152)] 
  dxHeightfield::dCollideHeightfieldZone (this=0x80c2660, minX=7, maxX=9, minZ=3, maxZ=5, o2=0x81713d0, numMaxContactsPossible=64, flags=64, 
      contact=0xbfacd810, skip=112) at heightfield.h:149
  149             if (trianglelistReservedSize < newSize) 
  (gdb) where
  #0  dxHeightfield::dCollideHeightfieldZone (this=0x80c2660, minX=7, maxX=9, minZ=3, maxZ=5, o2=0x81713d0, numMaxContactsPossible=64, flags=64, 
      contact=0xbfacd810, skip=112) at heightfield.h:149
  #1  0x0808e4f0 in dCollideHeightfield (o1=0x80c2660, o2=0x81713d0, flags=64, contact=0xbfacd810, skip=112) at heightfield.cpp:1748
  #2  0x0805ac89 in dCollide (o1=0x81713d0, o2=0x80c2660, flags=64, contact=0xbfacd810, skip=112) at collision_kernel.cpp:259 
  #3  0x0804cbb5 in nearCallback (data=0x0, o1=0x81713d0, o2=0x80c2660) at demo_heightfield.cpp:1568
  #4  0x08060b59 in collideAABBs (g1=0x81713d0, g2=0x80c2660, data=0x0, callback=0x804ca40 <nearCallback>) at collision_space_internal.h:81 
  #5  0x08061ad1 in dxHashSpace::collide (this=0x80c2318, data=0x0, callback=0x804ca40 <nearCallback>) at collision_space.cpp:575
  #6  0x08060c77 in dSpaceCollide (space=0x80c2318, data=0x0, callback=0x804ca40 <nearCallback>) at collision_space.cpp:738 
  #7  0x0804d14f in simLoop (pause=0) at demo_heightfield.cpp:1898
  #8  0x080511e3 in dsDrawFrame (width=352, height=288, fn=0xbfad0294, pause=0) at drawstuff.cpp:1164
  #9  0x08052b9d in dsPlatformSimLoop (window_width=352, window_height=288, fn=0xbfad0294, initial_pause=0) at x11.cpp:372
  #10 0x0804fa6e in dsSimulationLoop (argc=1, argv=0xbfad0364, window_width=352, window_height=288, fn=0xbfad0294) at drawstuff.cpp:1276
  #11 0x0804bdc8 in main (argc=1, argv=0xbfad0364) at demo_heightfield.cpp:2125 
  (gdb) Quit
  (gdb) 





  -- 
  Zapp: Captain's log, stardate...er..
  Kif: Ohhh. April 13th.
  Zapp: April 13th. Point 2. 


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