Re: gEDA-user: PCB drill file question

[Stephen Williams <steve@xxxxxxxxxx>]

More often then not, when I had problems like that with Icarus Verilog
it turned out to be different handling (by the O/S) of dynamically
allocated memory. One or the other (I forget which) will leave random
data in malloc'ed memory. If malloc'ed data is not initialized, this
can lead to code down-stream getting confused and crashing.

Dan McMahill wrote:
> I was completely unable to reproduce this under linux or netbsd.  I also 
> tried things like running electricfence on netbsd and was never able to 
> reproduce the crash there.  Under windows though it always happens.  The 
> output of gdb was totally useless to me although maybe someone else 
> would have better luck.
> 
> I think we have 2 likely reasons for the crash.
> 
> 1)  There are some #ifdef WIN32 in a small number of places in the code 
> that has to do with rendering so we do have a slightly different code 
> path within gerbv.  [*]
> 
> 2)  Bugs in gtk/gdk for windows.
> 
> Unfortunately I don't have any more time to put into it and I don't have 
> a sufficient cairo and gdk clue to be very effective anyway.
> 
> -Dan
> 
> [*] While looking for #ifdef WIN32, I found some totally inappropriate 
> use of WIN32 and __sparc__ in the csv parser.  We should fix that. 
> There is code that looks for the processor (via __sparc__) and then 
> makes assumptions about libc functions and other os, but not processor, 
> dependent things.
> 
> 
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-- 
Steve Williams                "The woods are lovely, dark and deep.
steve at icarus.com           But I have promises to keep,
http://www.icarus.com         and lines to code before I sleep,
http://www.picturel.com       And lines to code before I sleep."


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