[ODE] BoundsChecker

[DjArcas]

I'm pretty sure the QNAN problem will make the collisions expand to fit
available memory.

My stack is already 0x1200000, increased to see if that solved it. 0x800000
exhibits the same issue.

----- Original Message ----- 
From: "Shaul Kedem" <shaul_kedem@yahoo.com>
To: "DjArcas" <djarcas@hotmail.com>; <ode@q12.org>
Sent: Thursday, July 03, 2003 9:07 PM
Subject: Re: [ODE] BoundsChecker


> DjArcas,
>  If it's stack size - try to increase it and see what
> happens (in the linker options - try something like
> 0x800000)
>
> Shaul
>
> --- DjArcas <djarcas@hotmail.com> wrote:
> > Nope nope and I think so... and I don't have *nix :)
> >
> > The only thing it's warning me about is literally
> > thousands of 'Unitialized
> > memory copy in swapProblem', inside SolveLCP. After
> > a few dozen physics
> > updates (all my objects have gone to QNAN already),
> > I get a crash inside
> > dSolveLCP, where it tries to allocate more memory:
> >
> > dReal *d = (dReal*) ALLOCA (n*sizeof(dReal));
> >
> > My guess is that the QNAN problem is causing all the
> > objects to collide
> > inside eachother, causing me to run out of stack.
> >
> >
> >
> > I've uploaded the purify report here:
> >
> > http://www.sawkins.com/crash.txt
> >
> >  but, I'll be honest, large swathes of it is
> > gibberish to me!
> >
> > ----- Original Message ----- 
> >
> > From: "Shaul Kedem" <shaul_kedem@yahoo.com>
> > To: "DjArcas" <djarcas@hotmail.com>; <ode@q12.org>
> > Sent: Thursday, July 03, 2003 8:44 PM
> > Subject: Re: [ODE] BoundsChecker
> >
> >
> > > DjArcas,
> > >  I used purify for a while (not the newest one) -
> > >  - do you use release compile?
> > >  - do you use a propriety memory manager?
> > >  - does your version of purify/boundschecker
> > support
> > > heap allocation debugging?
> > >
> > >  Check all of the above, if you'll use msvcrt
> > > malloc/new , use a debug compile and your
> > > purify/bounds checker supports heap over bounds
> > > checking (and is enabled) you should find your
> > > problem.
> > >
> > >  If that doesn't help try compiling on unix using
> > > electric fence or some other library that does
> > memory
> > > checking (there are a couple out there) - that is
> > > assuming you can compile on a *nix machine.
> > >
> > > Hope this helps,
> > > Shaul
> > >
> > > --- DjArcas <djarcas@hotmail.com> wrote:
> > > > Does anyone have any experience with
> > BoundsChecker
> > > > or Rational Purify?
> > > >
> > > > I've tried running them both on my simulation,
> > to no
> > > > avail - they detect nothing relevant until I get
> > an
> > > > access violation inside StepIslands.
> > > >
> > > > Please, someone, help!
> > > >
> > >
> > >
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>
>
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