Date: Fri, 19 Feb 2010 04:50:38 +0100 From: Bernd Walter <ticso@cicely7.cicely.de> To: "M. Warner Losh" <imp@bsdimp.com> Cc: kostikbel@gmail.com, 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: <20100219035038.GB43625@cicely7.cicely.de> In-Reply-To: <20100218.204012.468378203358324036.imp@bsdimp.com> References: <20100218131010.GQ50403@deviant.kiev.zoral.com.ua> <20100219031200.GY43625@cicely7.cicely.de> <20100219033000.GZ43625@cicely7.cicely.de> <20100218.204012.468378203358324036.imp@bsdimp.com>
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On Thu, Feb 18, 2010 at 08:40:12PM -0700, M. Warner Losh wrote: > In message: <20100219033000.GZ43625@cicely7.cicely.de> > Bernd Walter <ticso@cicely7.cicely.de> writes: > : On Fri, Feb 19, 2010 at 04:12:00AM +0100, Bernd Walter wrote: > : > On Thu, Feb 18, 2010 at 03:10:10PM +0200, Kostik Belousov wrote: > : > > On Thu, Feb 18, 2010 at 01:49:07PM +0100, Bernd Walter wrote: > : > > > On Tue, Feb 16, 2010 at 07:39:51PM +0100, Bernd Walter wrote: > : > > > > On Mon, Feb 15, 2010 at 10:39:07PM +0100, Bernd Walter wrote: > : > [Switching to thread 4 (Thread 20804140 (LWP 100053))]#0 0x0015755c in isc_atomic_cmpxchg () > : > (gdb) bt > : > #0 0x0015755c in isc_atomic_cmpxchg () > : > #1 0x00157dac in isc_rwlock_lock () > : > #2 0x000f9790 in dns_db_register () > : > #3 0x0004d590 in dns_sdb_register () > : > #4 0x0000c974 in ns_builtin_init () > : > #5 0x0001aa90 in $a () > : > #6 0x0001aa90 in $a () > : > > : > isc_atomic_cmpxchg really sounds quite interesting though. > : > It is not only the crashing function it is also a type of function which > : > sounds error prune. > : > : For me it looks like a bug in bind itself. > : It is in contrib/bind9/lib/isc/arm/include/isc/atomic.h. > : My assumption is that either the assembly is broken or it gets an > : invalid pointer. > : I'm not very expirienced with ARM assembly. > : Warner - it names you in the copyright, so very likely you know this code. > : I will build a debug version of bind, but as usual it will take some > : time... > > Damn. It wasn't me. > > Oh, wait, maybe it was... :-) > I'll try to look at it tomorrow... Thank you. Recompiling libbind and named with debug support also takes some time. -- B.Walter <bernd@bwct.de> http://www.bwct.de Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.
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