Crashing in maxima 5.13.0 on Debian amd64



dlakelan wrote:
> I am playing around with my simulated annealing code and getting a 
> highly reproducible crash on my machine when I execute the following 
> code. The simulation runs for a while and then hangs. Maxima uses up 700 
>   MB of virtual memory or so and then pegs the CPU. I don't see where 
> i'm initiating an infinite loop or anything. and if I use a smaller 
> number of iterations, i don't get the hang....
> 
> This is the stock Debian 5.13.0-2 (slightly older package than current 
> debian unstable which is 5.13.0-3 the dash numbers are the version of 
> the package. )
> 
> Can anyone confirm this hang on another machine?

Based on the responses both on and off list, I'm guessing that this code 
somehow activates a bug in either the GCL garbage collector, or the 
interpreter. I am downloading the 5.14.0 source and going to compile for 
SBCL rather than continue to use the Debian package. Thanks for the 
helpful messages, and I hope to get a refined version of the minimizer 
to the list in another week or so.