[Radiance-general] Segmentation fault

[Gregory J. Ward]

Hi Ignacio,

 From my experience, there are memory problems associated with  
Cygwin, and these are unrelated to Radiance (other than the fact that  
Radiance uses a lot of memory).  A backtrace isn't much help in this  
case, I'm afraid, as it is not a problem with the program, but with  
the system under which it is operating.

-Greg

> From: Ignacio Munárriz <info at aisarquitectura.com>
> Date: December 11, 2005 4:14:54 AM PST
>
> Hi, I've got an error in my windows 2000 server with radiance  
> running under cygwin, but it doesn't ocurr in windows xp, i dont  
> know the reason.
> It ocurrs when any radiance programs(ie rpict, oconv) goes over <>  
> 500 mb of ram and crashes with Segmentation fault , here is the  
> stack trace
>
> Starting program: /usr/local/radiance/ray/bin/rpict.exe -x 8000 -y  
> 8000 -af amba
> ve -ar 2000 -aa .08 -ab 1 -vf arboldef todofin.oct
> #?RADIANCE
> oconv mest estacion.rad mates.rad cubo1.rad edificios.rad  
> edinuevos.rad urbanism
> o.rad arbolest.rad refis.rad arboles2.rad arboles3.rad  
> edificiosf.rad grass.rad
> /usr/local/radiance/ray/bin/rpict -x 8000 -y 8000 -af ambave -ar  
> 2000 -aa .08 -a
> b 1 -vf arboldef
> SOFTWARE= RADIANCE 3.5 lastmod Mon Mar 14 18:37:57     2005 by  
> chroma on chr-xeo
> n
> CAPDATE= 2005:12:11 12:46:55
> /usr/local/radiance/ray/bin/rpict: warning - no light sources found
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x610c4914 in memcpy () from /usr/bin/cygwin1.dll
> (gdb) bt
> #0  0x610c4914 in memcpy () from /usr/bin/cygwin1.dll
> #1  0x6100275e in toascii () from /usr/bin/cygwin1.dll
> #2  0x61050c8e in lsearch () from /usr/bin/cygwin1.dll
> #3  0x610516e4 in lsearch () from /usr/bin/cygwin1.dll
> #4  0x61051f79 in lsearch () from /usr/bin/cygwin1.dll
> #5  0x610ab36c in setstate () from /usr/bin/cygwin1.dll
> #6  0x6104ed0a in lsearch () from /usr/bin/cygwin1.dll
> #7  0x610844ff in cygwin1!aclcheck () from /usr/bin/cygwin1.dll
> #8  0x0040817d in setambient () at ambient.c:148
> #9  0x004013b6 in main (argc=16, argv=0x6a1bd8) at rpmain.c:297