From: Angelo Graziosi <angelo.graziosi@alice.it>
To: Dan Nicolaescu <dann@ics.uci.edu>
Cc: Chong Yidong <cyd@stupidchicken.com>, emacs-devel@gnu.org
Subject: Re: Warning starting Emacs (Cygwin)
Date: Sat, 02 Aug 2008 17:02:31 +0200 [thread overview]
Message-ID: <48947707.7030303@alice.it> (raw)
In-Reply-To: <48946F36.3020505@alice.it>
Angelo Graziosi ha scritto:
>
> At the end I have tried this simple test case, which is 'out context'
> (so it could be not meaningful), but it seems to return wrong values:
>
> -----------------------------------------------
> $ cat test_printf.c
> #include <stdio.h>
> #include <sys/resource.h>
>
> int main()
> {
> struct rlimit rlimit;
>
> unsigned long five_percent;
> unsigned long data_size;
>
> getrlimit (RLIMIT_AS, &rlimit);
>
> if (RLIM_INFINITY == rlimit.rlim_max)
> return 1;
>
> /* This is a nonsensical case, but it happens -- rms. */
> if (rlimit.rlim_cur > rlimit.rlim_max)
> return 2;
>
> five_percent = rlimit.rlim_max / 20;
> data_size = rlimit.rlim_cur;
>
> printf("have getrlimit %lu, %lu %lu %lu\n",
> data_size,five_percent,rlimit.rlim_cur,rlimit.rlim_max);
>
> if (data_size > five_percent * 19)
> printf("past 95 percent of memory limit\n");
>
> return 0;
> }
>
> $ gcc -o test_printf test_printf.c
>
> $ ./test_printf
> have getrlimit 2147483648, 107374182 2147483648 2147483648
> past 95 percent of memory limit
>
> -----------------------------------------------
>
On GNU/Linux (on which there is NOT warning) the test case retruns 1,
i.e. it executes
if (RLIM_INFINITY == rlimit.rlim_max)
return 1;
with RLIM_INFINITY == rlimit.rlim_max == 4294967295
Instead on Cygwin
RLIM_INFINITY == 4294967295
rlimit.rlim_max == 2147483648
>
> Cheers,
> Angelo.
>
> ---
> ... e la terra ritornata alla forma di nebulosa errerà nei cieli priva
> di parassiti e di malattie.
> .
> Italo SVEVO, "La coscienza di Zeno"
>
next prev parent reply other threads:[~2008-08-02 15:02 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-31 14:45 Failure bootstrapping Emacs (Cygwin) Angelo Graziosi
2008-07-31 16:27 ` Angelo Graziosi
2008-07-31 16:57 ` Angelo Graziosi
2008-07-31 17:00 ` Dan Nicolaescu
2008-08-01 10:38 ` Warning starting Emacs (was Re: Failure bootstrapping Emacs (Cygwin)) Angelo Graziosi
2008-08-01 12:51 ` Warning starting Emacs (Cygwin) Angelo Graziosi
2008-08-01 13:08 ` Dan Nicolaescu
2008-08-01 14:13 ` Angelo Graziosi
2008-08-01 14:36 ` Dan Nicolaescu
2008-08-01 20:47 ` Angelo Graziosi
2008-08-02 4:06 ` Dan Nicolaescu
2008-08-02 14:29 ` Angelo Graziosi
2008-08-02 15:02 ` Angelo Graziosi [this message]
2008-08-02 18:59 ` Dan Nicolaescu
2008-08-02 19:14 ` Chong Yidong
2008-08-02 19:30 ` Dan Nicolaescu
2008-08-02 19:54 ` Eli Zaretskii
2008-08-02 20:19 ` Chong Yidong
2008-08-02 20:24 ` Chong Yidong
2008-08-03 3:26 ` Eli Zaretskii
2008-08-03 6:20 ` Andreas Vögele
2008-08-03 14:10 ` Chong Yidong
2008-08-03 22:35 ` Angelo Graziosi
2008-08-04 6:25 ` Andreas Vögele
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