[openvrml-develop] Re: 64MB limit

[Damian M. <da...@er...>]

On Sun, 25 Nov 2001 ope...@li... wrote:

> Date: Sun, 25 Nov 2001 16:51:31 +1100 (EST)
> From: Damian McGuckin <da...@er...>
> To: <ope...@li...>
> Subject: [openvrml-develop] 64MB limit
>
> I have a large VRML file that I am trying to display with GTKLOOKAT.  It
> core dumps before it seriously displays anything.  It reads the files OK.
> However, I suspects some system setting as it dumps a core file of size
>
> 	67186688 Nov 25 15:40 core
>
> This factors to 65536 * ( 65536 + 76 ) which is too close to 64MB and too
> neat for my liking.  I am quite happy to send the ( 13MB uuencoded ) file
> to somebody else if you want to try it.

Being a bit more intelligent and trying some other big files, I am sure
that problem is not a 64MB limit.

I can get problems with other ( sort of ) smaller executable sizes ( 27MB
or so ) which also dump core as a result of a malloc() problem from within
the OpenGL library.

> The program dumps core where a 'where' in gdb with OpenVRML 0.11.2 and
> GTKlookat 0.9.1 compiles with '-g',  shows up
>
> 	#0  0x405b6f7a in malloc () from /lib/libc.so.6
> 	#1  0x405b6d3e in malloc () from /lib/libc.so.6
> 	#2  0x404c4a78 in gluTessVertex () from /usr/X11R6/lib/libGLU.so.1

As to what the problem really is, that remains to be solved.

Thanks - Damian (McGuckin)

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