Re: Crash during access_keymap

[David Reitter]

On 13 Nov 2005, at 06:39, YAMAMOTO Mitsuharu wrote:

>   So, if there's a non-pure object that is only pointed to by pure
>   objects, which may happen if the assumption for the pure storage is
>   violated, then the object is reachable but get collected.

OK, that makes sense.
Do you know if this is documented somewhere?
I've read the info nodes about pure storage etc., and it doesn't say  
anything about what to look for in code, or if there is a way to test  
for the effect while loading. Maybe on a port that implements memory  
protection?

I mostly just preload code, but define a setup function in each  
package that is run at runtime. But from what you are saying, I am  
getting that vectors are allocated when the file is loaded, and not  
copied when a function is called. But if the code used (vector 0 0 0  
0 0) instead of [0 0 0 0 0], the vector would be allocated at runtime  
and we don't run into such trouble. Does this apply only to vectors?  
(Since vectors seem immutable to me, this all would make sense...)

Any pointers to documentation would be greatly appreciated - I'm  
happy to read whatever there is.

Thanks
- David