Date: Wed, 30 Jul 2003 17:25:42 +0400 From: Andrew Belashov <bel@orel.ru> To: freebsd-sparc64@freebsd.org Subject: fork&Perl BUG Message-ID: <3F27C756.6070201@orel.ru> In-Reply-To: <3F27A5DB.2050601@orel.ru> References: <3F210BF6.6070001@orel.ru> <20030725153258.GE10708@funkthat.com> <3F27A5DB.2050601@orel.ru>
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I modified Perl by adding sleep(10) in parent after fork():
---------------------------------------------------------------------
--- pp_sys.c.orig Fri Apr 6 08:38:46 2001
+++ pp_sys.c Wed Jul 30 17:17:50 2003
@@ -3703,6 +3703,9 @@
if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV)))
sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
+ } else {
+ /* PARENT */
+ sleep(10);
}
PUSHi(childpid);
RETURN;
---------------------------------------------------------------------
and my test script working OK!!!
---------------------------------------------------------------------
(gdb) run perlbug.pl 80000
Starting program: /usr/ports/lang/perl5.debug/work/perl-5.6.1/perl
perlbug.pl 80000
................................................................................
Main: sum = 39977.1619376211, cnt = 80000
Child working...
Child: sum = 39977.1619376211, cnt = 80000
Child exiting...
Child pid = 92042
Parent working...
Parent: sum = 39977.1619376211, cnt = 80000
Parent waiting a child...
Parent exiting...
---------------------------------------------------------------------
IMHO, it is bug in fork(2).
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