[ODE] dMessage crashes my system

[Santi Ontañón]

Thanks! That was exactly the problem, now I can run ODE without any crash.

However, my simulation now gives error messages and I obtain 
non-physical behavior. My problem is the following one:
- If I set friction = dInfinity, everything works fine. But if I set 
friction = 0 or 1 (or any other small constant), two of the boxes of my 
simulation enter one inside of the other (while ODE gives messages: "LCP 
internal error, s <= 0 (s=0.0000)"), and suddently they collide with 
such a strength (since they are one inside the other), that both boxes 
run away of my simuation field.

Should I always set friction = dInfinity? I'd like to have surfaces with 
lower frictions... do I have to do something special to support them?

thanks in advance!


Jon Watte wrote:

>Typically when stdout functions crash in MSDEV, you are not linking with the correct version of the runtime libraries for your compiler. I e, perhaps ODE was linked with DLL Debug Runtime, and your app with Single-Threaded Static runtime.
>
>Typically, you need to set everything to link to the DLL multi-threaded runtime, and make sure you use all Debug components if you're making a debug build, and all Release components if you're making a release build. Yes, this means you gotta build ODE twice: once for debug, once for release.
>
>Cheers,
>
>			/ h+
>
>
>-----Original Message-----
>From: ode-bounces at q12.org [mailto:ode-bounces at q12.org]On Behalf Of Santi
>Ontañón
>Sent: Monday, March 29, 2004 7:14 AM
>To: ode at q12.org
>Subject: [ODE] dMessage crashes my system
>
>
>Hi everybody,
>
>I'm new to ODE, and I'm having some problems. I use ODE 0.039 compiled 
>using VC++ 6.0 for windows (I use Windows ME). After several sucessful 
>trials with some cubes and joints, I've found a scenario where ODE 
>crashes my system. I've traced the problem, and the program crashes in 
>this point of the code in the file lcp.cpp:
>
>...
>    // if s <= 0 then we've got a problem. if we just keep going then
>    // we're going to get stuck in an infinite loop. instead, just cross
>    // our fingers and exit with the current solution.
>    if (s <= 0) {
>      dMessage (d_ERR_LCP, "LCP internal error, s <= 0 (s=%.4e)",s);
>      if (i < (n-1)) {
>        dSetZero (x+i,n-i);
>        dSetZero (w+i,n-i);
>      }
>      goto done;
>    }
>...
>
>It exactly crashes when callind "dMessage", and in more detail, it 
>crashes inside dMessage in this function (in file error.cpp):
>
>static void printMessage (int num, const char *msg1, const char *msg2,
>              va_list ap)
>{
>  fflush (stderr);
>  fflush (stdout);
>  if (num) fprintf (stderr,"\n%s %d: ",msg1,num);
>  else fprintf (stderr,"\n%s: ",msg1);
>  vfprintf (stderr,msg2,ap);
>  fprintf (stderr,"\n");
>  fflush (stderr);
>}
>
>The crash occurs when calling "fflush(stderr)".
>Anyone knows how to solve this problem? I'm tempted to simply delete the 
>call do "dMessage", but I'd like a "neater" solution!
>
>thanks in advance
>
>santi
>
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