[Radiance-general] error message

[Gregory J. Ward]

Hi Will,

You may have run out of stack space or some related problem in  
Cygwin, but I'm afraid neither the error nor the stack trace provide  
any clues as to what's going on.  Cygwin is far from reliable in its  
ability to run long, complicated processes.  (Polite way of saying  
the system is buggy.)  I've had lots of problem reports on this, but  
there's nothing whatever I can do about it.

-Greg

> From: william reynolds <william.reynolds at oriel.ox.ac.uk>
> Date: March 9, 2006 12:25:57 PM PST
>
> hi there
> i've been using radiance on a debian linux laptop with no probs for  
> a bit, but i've also now got it going on my desktop - using cygwin  
> under windows.
> it seems to work fine, and does the rendering very well - but it  
> always seems to produce an error message, heres what it says:
>
> $ rad bt_quick.rif
>         oconv bt.mat bt.rad light_2.rad > bt_quick.oct
>         rpict -vu 0 1 0 -vtv -vp -285.859 4340.82 1610.38 -vd  
> 0.996043 -0.0173828 -0.0871583 -vu 0.0871432 -0.00151368 0.996195 - 
> vh 40 -vv 40 -vs 0 -vl 0 -vo 338.349 -x 200 -y 200 -ps 8 -pt .16 - 
> dp 128 -ar 16 -ds 0 -dt .2 -dc .25 -dr 0 -sj 0 -st .5 -aa .3 -ad  
> 256 -as 0 -av 0.05 0.05 0.05 -lr 6 -lw .01 -av 0 0 0 -ad 200 -ab 3  
> bt_quick.oct > bt_quick_1.unf
>         pfilt -1 -e 10 bt_quick_1.unf > bt_quick_1.pic
>         rm -f bt_quick_1.unf
> Segmentation fault (core dumped)
>
>
> does any one have any idea what this segmentation fault is? it also  
> makes a file rad.exe.stackdump,
> which has the contents:
>
> Exception: STATUS_ACCESS_VIOLATION at eip=30203020
> eax=00000000 ebx=2D203620 ecx=00000001 edx=00000000 esi=2E20776C  
> edi=2D203130
> ebp=30207661 esp=0022E9D0 program=C:\cygwin\opt\radiance\bin 
> \rad.exe, pid 368, thread main
> cs=001B ds=0023 es=0023 fs=003B gs=0000 ss=0023
> Stack trace:
> Frame     Function  Args
>       8 [main] rad 368 handle_exceptions: Error while dumping state  
> (probably corrupted stack)
>
> thanks
> will