GC problem (?) in 1.8

URABE_Shyouhei · June 20, 2006, 9:53pm

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URABE_Shyouhei · June 21, 2006, 9:17am

In article [email protected],
URABE Shyouhei [email protected] writes:

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http://www.rubyist.net/~kazu/chkbuild/powerpc-darwin/ruby-1.8-pth/summary.html
http://www.rubyist.net/~kazu/chkbuild/powerpc-darwin/ruby-1.8-pth/log/20060616T003305.txt.gz
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URABE_Shyouhei · June 21, 2006, 4:01pm

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Tanaka A. wrote:

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0F0Ee$B$K$J$j$^$7$?!#e(B

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% ruby-1.8 -ve’
f = Process::RLIMIT_NOFILE
a = Process.getrlimit f
p a
Process.setrlimit f, 0, a[1]
b = Process.getrlimit f
p b
Process.setrlimit f, a[0], a[1]’
ruby 1.8.5 (2006-06-21) [powerpc-darwin8.6.0]
[256, 9223372036854775807]
[0, 10240]
-e:8:in `setrlimit’: Operation not permitted - setrlimit (Errno::EPERM)
from -e:9
zsh: exit 1 ruby-1.8

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URABE_Shyouhei · June 21, 2006, 9:01pm

In article [email protected],
URABE Shyouhei [email protected] writes:

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descriptor e$B$,6u$/!”$H?.$8$F$$$k$+$i$G$9$M!#e(B

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Index: ext/socket/socket.c

RCS file: /src/ruby/ext/socket/socket.c,v
retrieving revision 1.108.2.51
diff -u -p -r1.108.2.51 socket.c
— ext/socket/socket.c 17 Jun 2006 15:53:27 -0000 1.108.2.51
+++ ext/socket/socket.c 21 Jun 2006 18:58:06 -0000
@@ -2304,15 +2304,17 @@ sock_s_socketpair(klass, domain, type, p
VALUE klass, domain, type, protocol;
{
#if defined HAVE_SOCKETPAIR

int d, t, sp[2];

int d, t, p, sp[2];
int ret;

setup_domain_and_type(domain, &d, type, &t);

again:
if (socketpair(d, t, NUM2INT(protocol), sp) < 0) {
if (errno == EMFILE || errno == ENFILE) {
```
  rb_gc();
```
```
  goto again;
```
}

p = NUM2INT(protocol);
ret = socketpair(d, t, p, sp);
if (ret < 0 && (errno == EMFILE || errno == ENFILE)) {
```
   rb_gc();
```
```
   ret = socketpair(d, t, p, sp);
```
}
if (ret < 0) {
rb_sys_fail(“socketpair(2)”);
}

URABE_Shyouhei · June 22, 2006, 12:22am

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Tanaka A. wrote:

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% python
Python 2.3.5 (#1, Aug 22 2005, 22:13:23)
[GCC 3.3 20030304 (Apple Computer, Inc. build 1809)] on darwin
Type “help”, “copyright”, “credits” or “license” for more information.

import resource
f = resource.RLIMIT_NOFILE
a = resource.getrlimit(f)
print a
(256L, 9223372036854775807L)

resource.setrlimit(f, (0, a[1]))
b = resource.getrlimit(f)
print b
(0L, 10240L)

resource.setrlimit(f, a)
Traceback (most recent call last):
File “”, line 1, in ?
ValueError: not allowed to raise maximum limit

^D
%

URABE_Shyouhei · June 23, 2006, 4:15pm

In article [email protected],
URABE Shyouhei [email protected] writes:

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src/xnu/bsd/kern/kern_resource.c e$B$Ke(B

    case RLIMIT_NOFILE:
            /*
            * Only root can set the maxfiles limits, as it is

systemwide resource
*/
if ( is_suser() ) {
if (limp->rlim_cur > maxfiles)
limp->rlim_cur = maxfiles;
if (limp->rlim_max > maxfiles)
limp->rlim_max = maxfiles;
}
else {
if (limp->rlim_cur > maxfilesperproc)
limp->rlim_cur = maxfilesperproc;
if (limp->rlim_max > maxfilesperproc)
limp->rlim_max = maxfilesperproc;
}
break;

e$B$H$$$&$h$&$J%3!<%I$,$"$j!"e(Bmaxfilesperproc e$B$G8!:w$9$k$He(B
http://lists.apple.com/archives/macos-x-server/2004/May/msg01103.html
http://discus-hamburg.cocolog-nifty.com/mac_de_oracle/2005/05/panther_de_orac_dc5e.html
e$B$H$+$Ne(B sysctl -a e$B$N7k2LCf$Ke(B
kern.maxfilesperproc = 10240
e$B$H$$$&$N$,8+$i$l$^$9!#e(B

f = resource.RLIMIT_NOFILE
a = resource.getrlimit(f)
print a
(256L, 9223372036854775807L)
resource.setrlimit(f, (0, a[1]))
b = resource.getrlimit(f)
print b
(0L, 10240L)

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