John Fawcett:
> >> Oct 5 17:30:02 localhost kernel: postscreen[22771]: segfault at 0 ip
> >> 00007f388bc98cea sp 00007ffc372ca850 error 4 in
> >> libpostfix-util.so[7f388bc7e000+29000]
> >>
> >> both with postfix 3.5.6 and 3.5.7 on gentoo
> >>
> >> removed:
> >>
> >> postscreen_dnsbl_reply_map =
> >> texthash:/etc/postfix/postscreen_dnsbl_reply_map
> >> postscreen_dnsbl_sites = APIKEY.combined.mail.abusix.zone
> >>
> >> that removed the seqfaults
> >>
> >> kernel is 5.4.66, dont know if thats related to my problem, is other
> >> seen that problem ?
> > Support for postscreen_dnsbl_* not changed in years. You can try
> > to attack a debugger as in http://www.postfix.org/DEBUG_README.html,
> > to find out what function(s) are active at the time.
> >
> > Wietse
>
> Hi
>
> maybe just a wild guess... but looking at the code in dict_thash.c is
> this guaranteed to return something not null?
>
> ??????? dict = dict_open3(DICT_TYPE_HT, path, open_flags, dict_flags);
>
> If it ever returns null, it would likely produce a segfault later on.
dict_open never returns null. In case of error, a dictionary
terminates with a fatal error, or it returns a "surrogate" dictionary
that returns errors for all requests.
Wietse
