Subject: Re: Problems trying to debug pkgsrc/mail/milter-greylist
To: None <port-sparc64@netbsd.org>
From: Gert Doering <gert@greenie.muc.de>
List: port-sparc64
Date: 11/23/2007 08:40:06
Hi,

On Thu, Nov 22, 2007 at 03:05:06PM +0100, Gert Doering wrote:
> Michael-John Turner wrote:
> 
> >On Thu, Nov 22, 2007 at 09:14:24AM +0100, Jochen Kunz wrote:
> >> So, if you want / need to use a threaded application you have to switch
> >> either to -current on sparc64 or to an other machine architecture if you
> >> want / need to stay at 4.0. :-(
> 
> >Another possibility is to build milter-greylist using pth rather than
> >native threads. [..]
> 
> I did this when still on NetBSD 2 (because native threads tended to 
> freeze the machine hard), but it didn't make the milters stable.
> 
> I will try again, and report back.

OK.  It's not straightforward, because it needs careful mangling of
system header files - but it can be done.

What I did:

 1. mk.conf
    PREFER_NATIVE_PTHREADS=NO
    PTHREAD_TYPE=pth

 2. /usr/include/signal.h -> "#if 0 / #endif" around the pthread_sigmask()
    prototype and the macro definition

 3. move away /usr/include/pthread*.h
    -r--r--r--  1 root  wheel  14120 Sep  4 17:13 XXX_pthread.h
    -r--r--r--  1 root  wheel   6885 Sep  4 17:13 XXX_pthread_dbg.h
    -r--r--r--  1 root  wheel   5379 Sep  4 17:13 XXX_pthread_queue.h
    -r--r--r--  1 root  wheel   7005 Nov 22 16:55 XXX_pthread_types.h

 4. *then* compile and install pth, libmilter, milter-greylist
    (installing pth before header mangling makes it pick up 
     #define pthread_sigmask __libc_thr_sigsetmask
     from <signal.h>, which will cause unresolved symbols later on)

now ldd confirms that milter-greylist is using pkg pth only - but alas:
it still crashes on me.

Will try 4.0-recent with native threads next.

gert
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Gert Doering - Munich, Germany                             gert@greenie.muc.de
fax: +49-89-35655025                        gert@net.informatik.tu-muenchen.de