Date: Wed, 17 Feb 2010 03:21:53 +0100 From: Bernd Walter <ticso@cicely7.cicely.de> To: "M. Warner Losh" <imp@bsdimp.com> Cc: stas@FreeBSD.org, arm@FreeBSD.org, ticso@cicely7.cicely.de, ticso@cicely.de, current@FreeBSD.org Subject: Re: bind fails with sig11 on start / pthread failure on ARM? Message-ID: <20100217022153.GR43625@cicely7.cicely.de> In-Reply-To: <20100216.135430.702773873773944731.imp@bsdimp.com> References: <20100215213907.GA43625@cicely7.cicely.de> <20100216183951.GI43625@cicely7.cicely.de> <20100216123646.fc741643.stas@FreeBSD.org> <20100216.135430.702773873773944731.imp@bsdimp.com>
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On Tue, Feb 16, 2010 at 01:54:30PM -0700, M. Warner Losh wrote: > In message: <20100216123646.fc741643.stas@FreeBSD.org> > Stanislav Sedov <stas@freebsd.org> writes: > : On Tue, 16 Feb 2010 19:39:51 +0100 > : Bernd Walter <ticso@cicely7.cicely.de> mentioned: > : > : > > : > Do we have a general threading problem on ARM? > : > > : > : I don't think so. I used a lot of threaded applications on arm, and they > : worked fine. However, this might be some obscure bug. > > I know that 6.x ARM worked with threads no problem. We had dozens of > threads in our control programs. > > The one caveat is that I've found bugs in the atomic routines in the > past, and have had people submit fixes as well. All of those should > be in the tree, but since some arrived when I was crazy busy for > Cisco, they might have fallen on the floor. At least in my short test threads seem to work: [70]Please.tell.me.who.am.I# gcc -Wall -pthread -o thread thread.c 5.000u 0.000s 0:15.80 42.7% 39273+42143k 7+0io 0pf+0w [71]Please.tell.me.who.am.I# ./thread hello world hello world from thread [72]Please.tell.me.who.am.I# cat thread.c #include <pthread.h> #include <stdint.h> #include <stdio.h> #include <unistd.h> void * mythread(void *arg) { printf("hello world from thread\n"); return NULL; } int main(int argc, char *argv[]) { printf("hello world\n"); pthread_t id = 0; pthread_create(&id, NULL, mythread, NULL); sleep(10); return 0; } -- B.Walter <bernd@bwct.de> http://www.bwct.de Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.
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