Hi,
With current CVS on PPC (because I still haven't investigated enough to
figure what's wrong on x86-64),
(define (nsum n)
(apply + (let ((x 1))
(par-map (lambda (y) (set! x (1+ x)) (+ y x))
(make-list n 0)))))
I get this:
guile> (nsum 100)
$1 = 5150
guile> (nsum 100)
$2 = 5150
guile> (nsum 100)
$3 = 5150
guile> (nsum 100)
Backtrace:
In current input:
5: 0* [nsum 100]
1: 1 [apply #<primitive-generic +> ...
1: 2* (let* ((x 1)) (par-map (lambda (y) (set! x #) (+ y x))
(make-list n 0)))
1: 3 [par-map #<procedure #f (y)> (0 0 0 0 0 0 0 0 0 ...)]
In /opt/guile/share/guile/1.7/ice-9/threads.scm:
52: 4 [map #<primitive-procedure future-ref> ...
53: 5* [apply #<primitive-generic map> #<procedure #f args> ...]
In unknown file:
?: 6 [map]
?: 7* [map #<procedure #f args> (0 0 0 0 0 0 0 0 0 ...)]
?: 8* [#<procedure #f args> 0]
In /opt/guile/share/guile/1.7/ice-9/threads.scm:
55: 9* (future (apply mapper (proc . arglists)))
/opt/guile/share/guile/1.7/ice-9/threads.scm:55:20: In expression
(future (apply mapper #)):
/opt/guile/share/guile/1.7/ice-9/threads.scm:55:20: Cannot allocate
memory
>From then on out I can't call nsum any more. Perhaps threads assigned to
futures are not being gc'd properly.
Regards,
--
Andy Wingo
http://wingolog.org/
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