# Segmentation fault

**URL:** <https://discourse.radiance-online.org/t/segmentation-fault/2567>\
**Category:** radiance-general\
**Created:** [December 11, 2005, 12:14pm UTC](https://discourse.radiance-online.org/t/segmentation-fault/2567 "2005-12-11T12:14:54Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Ignacio\_Munarriz1](https://discourse.radiance-online.org/letter_avatar_proxy/v4/letter/i/9de053/32.png) [@Ignacio\_Munarriz1](https://discourse.radiance-online.org/u/Ignacio_Munarriz1)\
**Post date:** [December 11, 2005, 12:14pm UTC](https://discourse.radiance-online.org/t/segmentation-fault/2567/1 "2005-12-11T12:14:54Z")

</div>

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

---

<div class="post-metadata">

**Author:** ![Greg\_Ward](https://discourse.radiance-online.org/user_avatar/discourse.radiance-online.org/greg_ward/32/471_2.png) [@Greg\_Ward](https://discourse.radiance-online.org/u/Greg_Ward)\
**Post date:** [December 11, 2005, 4:59pm UTC](https://discourse.radiance-online.org/t/segmentation-fault/2567/2 "2005-12-11T16:59:38Z")

</div>

Hi Ignacio,

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 my experience, there are memory problems associated with
> 
> > From: Ignacio Munárriz \<info@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

---

<div class="post-metadata">

**Author:** ![Ignacio\_Munarriz1](https://discourse.radiance-online.org/letter_avatar_proxy/v4/letter/i/9de053/32.png) [@Ignacio\_Munarriz1](https://discourse.radiance-online.org/u/Ignacio_Munarriz1)\
**Post date:** [December 12, 2005, 9:21am UTC](https://discourse.radiance-online.org/t/segmentation-fault/2567/3 "2005-12-12T09:21:05Z")

</div>

Thanks greg, i'd prefer unix too, but all clients work with autocad...  
I've calculated it with other computer and here are the results  
[http://www.aisarquitectura.com/todofinv3.jpg](http://www.aisarquitectura.com/todofinv3.jpg) , each of those trees are 40mb  
instances, radiance is amazing but it's a little hard working with colors  
and textures in a text editor,  
Ignacio

> **···**
>
> ----- Original Message -----  
> From: "Gregory J. Ward" \<gregoryjward@gmail.com\>  
> To: "Radiance general discussion" \<radiance-general@radiance-online.org\>  
> Sent: Sunday, December 11, 2005 5:59 PM  
> Subject: Re: [Radiance-general] Segmentation fault
> 
> 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 Mun�rriz \<info@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
> 
> \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_  
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---

<div class="post-metadata">

**Author:** ![Mark\_de\_la\_Fuente](https://discourse.radiance-online.org/letter_avatar_proxy/v4/letter/m/54ee81/32.png) [@Mark\_de\_la\_Fuente](https://discourse.radiance-online.org/u/Mark_de_la_Fuente)\
**Post date:** [December 12, 2005, 3:00pm UTC](https://discourse.radiance-online.org/t/segmentation-fault/2567/4 "2005-12-12T15:00:52Z")

</div>

I had radiance running fine under Cygwin/W2000 for over a year, but recently it stopped working. Never did figure out what the problem was but it still works fine under XP. With most of the binaries now available under windows, you might be able to use them instead. Unfortunately I don't think the visual binaries are available for some reason.

Mark

---

<div class="post-metadata">

**Author:** ![Ignacio\_Munarriz1](https://discourse.radiance-online.org/letter_avatar_proxy/v4/letter/i/9de053/32.png) [@Ignacio\_Munarriz1](https://discourse.radiance-online.org/u/Ignacio_Munarriz1)\
**Post date:** [December 12, 2005, 4:02pm UTC](https://discourse.radiance-online.org/t/segmentation-fault/2567/5 "2005-12-12T16:02:40Z")

</div>

Thanks Mark, i've tried the rpict windows binary and it works fine, and i dont need the visual binaries because i only use the server for calculations

> **···**
>
> ----- Original Message -----  
> &nbsp;&nbsp;From: Mark de la Fuente  
> &nbsp;&nbsp;To: [radiance-general@radiance-online.org](mailto:radiance-general@radiance-online.org)  
> &nbsp;&nbsp;Sent: Monday, December 12, 2005 4:00 PM  
> &nbsp;&nbsp;Subject: Re: [Radiance-general] Segmentation fault
> 
> &nbsp;&nbsp;I had radiance running fine under Cygwin/W2000 for over a year, but recently it stopped working. Never did figure out what the problem was but it still works fine under XP. With most of the binaries now available under windows, you might be able to use them instead. Unfortunately I don't think the visual binaries are available for some reason.
> 
> &nbsp;&nbsp;Mark
> 
> ------------------------------------------------------------------------------
> 
> &nbsp;&nbsp;\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_  
> &nbsp;&nbsp;Radiance-general mailing list  
> &nbsp;&nbsp;[Radiance-general@radiance-online.org](mailto:Radiance-general@radiance-online.org)  
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