[racket-dev] DrRacket crash

I dont have any insight into the crashing, but fwiw, I ran your
program on two machines and both completed. The first machine has
windows7 and 12gb ram and the second is xp and has 2gb (and pretty
much took all day to complete). I ran both times with unlimited memory
in drracket.

Here is the output from the windows7 machine:

Welcome to DrRacket, version 5.1.0.5 [3m].
Language: racket.
> (fa 20000000 -2)
(esatta 0 -1.2616954770445667e+017 377.65000009536743 #f)
(esatta 1 -1.2616954770445667e+017 380.40700006484985 #f)
(semplice -1.2616954770445358e+017 1.373000144958496 2.4475002535742013e-014)
(posneg -1.261695476976997e+017 1.7599999904632568 5.355472951228884e-011)
(posneg ordinata -1.2616954770445666e+017 359.2300000190735
1.2681348464115033e-016)
(ricorsiva -1.2616954770445667e+017 4.718999862670898 0.0)
(ricorsiva ordinata -1.2616954770445664e+017 360.37400007247925
2.5362696928230065e-016)
somma heap inizio separazione
somma heap fine separazione
somma un heap inizio somma
somma un heap inizio somma
(heap -1.2616954770445666e+017 3496.8940000534058 1.2681348464115033e-016)


Here is the output from windows xp machine:

Welcome to DrRacket, version 5.1.0.6 [3m].
Language: racket [custom].
> (fa 20000000 -2)
(esatta 0 -319065950439559.1 1700.641000032425 #f)
(esatta 1 -319065950439559.1 1590.7030000686646 #f)
(semplice -3.1906595043948e+014 2.828000068664551 2.479894827103737e-013)
(posneg -319065950439150.4 3.5470001697540283 1.2810831097360537e-012)
(posneg ordinata -319065950439559.1 1515.608999967575 0.0)
(ricorsiva -319065950439559.06 10.655999898910522 1.958842675437391e-016)
(ricorsiva ordinata -319065950439559.1 1524.0 0.0)
somma heap inizio separazione
somma heap fine separazione
somma un heap inizio somma
somma un heap inizio somma
(heap -319065950439559.1 13219.680000066757 0.0)





On Mon, Apr 18, 2011 at 10:36 AM, Pierpaolo Bernardi
<olopierpa at gmail.com> wrote:
> Hello,
>
> the attached program, invoked with
>
> (fa 20000000 -2)
>
> in DrRacket, both in 5.1 and in 5.1.0.5, on windows XP, causes
> DrRacket to crash (after 20 minutes, on my machine).
>
> This appears to be repeatable on my machine.
>
> I tested with "No debugging or profiling", don't "Preserve
> stacktrace", and with "limit memory" set to 1 GB, and unlimited.
>
> The crash happens during the third or fourth invocation of the test
> procedure, the output of the displayln in this procedure is written
> partially when the crash happens.
>
> Hope this helps.
>
> Cheers
> P.
>
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