Bugzilla Bug 63713

While investigating obscure mono bug #54603 (I wanted to play with mono and I
have nptl-based gentoo installation) I've tried to reproduce deadlock without
boehm's gc and without mono. Successfully. Simple programs (see below)
deadlocks quite nicely).

Since threads are used in quite a few programs I think it's not some small mono
problem anymore so I decided to create new, separe bugreport for it.

#include <pthread.h>
#include <stdio.h>

void *thread_function (void *args)
{
        int j = 0;
        char *str;
        printf("starting thread!\n");
        for (j; j < 24; j++)
        {
                str = (char *)malloc(240);
                printf("malloc in thread !\n");
        }
        pthread_yield();
}

int main (void)
{
        int i;
        pthread_t thread;
        char *str;
        for (i=0;i<1000;i++)
        {
                pthread_create( &thread, NULL, thread_function, (void *)i);
                pthread_yield();
                str = (char *)malloc(240);
                printf("%d threads\n", i);
        }
        sleep(10);
}

$ ./testpgm | grep 'malloc in thread' | wc -l
9168

Without ntpl I've got expected 24000 ...

Portage 2.0.50-r11 (default-x86-2004.2, gcc-3.3.4, glibc-2.3.4.20040808-r0,
2.6.9-rc1-mm4)
=================================================================
System uname: 2.6.9-rc1-mm4 i686 Intel(R) Pentium(R) 4 CPU 3.00GHz
Gentoo Base System version 1.5.3
Autoconf: sys-devel/autoconf-2.59-r4
Automake: sys-devel/automake-1.8.5-r1
ACCEPT_KEYWORDS="x86 ~x86"
AUTOCLEAN="yes"
CFLAGS="-O2 -pipe -march=pentium4 -funroll-loops -ffast-math
-fomit-frame-pointer -ffloat-store -fforce-addr -ftracer -mmmx -msse -msse2
-mfpmath=sse"
CHOST="i686-pc-linux-gnu"
COMPILER=""
CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config
/usr/share/config /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d"
CXXFLAGS="-O2 -pipe -march=pentium4 -funroll-loops -ffast-math
-fomit-frame-pointer -ffloat-store -fforce-addr -ftracer -mmmx -msse -msse2
-mfpmath=sse"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoaddcvs ccache sandbox"
GENTOO_MIRRORS="ftp:///ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/
ftp://vlaai.snt.ipv6.utwente.nl/pub/os/linux/gentoo/
ftp://ftp6.uni-erlangen.de/pub/mirrors/gentoo http://gentoo.spb.ru/rsync"
MAKEOPTS="-j3"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY=""
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="X apm arts avi berkdb bitmap-fonts crypt cups encode foomaticdb gdbm gif
gnome gpm gtk gtk2 imlib jpeg kde libg++ libwww mad mikmod motif mpeg ncurses
nls nptl oggvorbis opengl oss pam pdflib perl png python qt quicktime readline
sdl slang spell ssl svga tcpd truetype x86 xml2 xmms xprint xv zlib"

*** This bug has been marked as a duplicate of 63734 ***