Samba 4.2 crashes

[Stefan Esser]

Am 25.08.2015 um 18:02 schrieb Andrea Venturoli:
> Hello.
> 
> I'm trying to upgrade from samba 3.6 to 4.2 (mainly because the former
> is deprecated, so I don't want AD, just plain old functionality).
> 
> I started with simpler installations and had almost no problem.
> However, in a just a little bit more complex case (PDC+BDC with LDAP
> backend), smbd and/or winbindd keep crashing.
> 
> I started by upgrading the PDC; everything should be fine (config files,
> rc.conf, database directory, connection to LDAP, etc...).
> However I'm getting lots of the following messages:
> 
>> kernel: pid 50545 (smbd), uid 0: exited on signal 6
> 
>> winbindd[89801]: stack overflow detected; terminated
> 
>> winbindd[89801]: stack overflow detected; terminated

I have seen that kind of failure when the port was built on a system
that had www/libwww installed. In that case libmd5.so from libwww is
linked to samba in preference of the system's libmd.so.

I sent a note to the port's maintainer, a few weeks ago, but apparently
he did not apply the patch I included, which fixes the port.

In case you have libwww installed, you can simply temporarily deinstall
it while you build samba42.

Or apply the attached patch (copy it to the samba42 port's files
directory and rebuild the port).

Best regards, STefan
-------------- next part --------------
--- lib/crypto/wscript_configure~	2014-10-01 11:16:21.000000000 +0200
+++ lib/crypto/wscript_configure	2015-08-11 22:54:47.865668000 +0200
@@ -1,8 +1,8 @@
 if not conf.CHECK_FUNCS_IN('MD5Init', 'bsd', headers='bsd/md5.h',
     checklibc=True):
-    conf.CHECK_FUNCS_IN('MD5Init', 'md5', headers='sys/md5.h',
-                        checklibc=True)
     conf.CHECK_FUNCS_IN('MD5Init', 'md', headers='sys/md5.h',
                         checklibc=True)
+    conf.CHECK_FUNCS_IN('MD5Init', 'md5', headers='sys/md5.h',
+                        checklibc=True)
 conf.CHECK_FUNCS_IN('CC_MD5_Init', '', headers='CommonCrypto/CommonDigest.h',
     checklibc=True)