On Wed, 2010-10-06 at 14:40 -0400, Wietse Venema wrote: > Victor Duchovni: > > On Wed, Oct 06, 2010 at 12:51:16PM -0500, Vernon A. Fort wrote: > > > > > Loaded symbols for /lib/libnss_files.so.2 > > > Core was generated by `postscreen -l -n smtp -t inet -u -s 2 -v'. > > > Program terminated with signal 11, Segmentation fault. > > > ... > > > #3 0x0805f827 in msg_info (fmt=0x80683bb "%s: notify %s:%s") at msg.c:179 > > > #4 0x0804c39a in ps_early_dnsbl_event (unused_event=0, > > > context=0x88d1348 > > > "\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377p") > > > at postscreen_early.c:228 > > > #5 0x0804c049 in ps_dnsbl_receive (event=1, context=0x88e1e60 "") at > > > postscreen_dnsbl.c:371 > > > #6 0x0805c31f in event_loop (delay=-1) at events.c:1180 > > > #7 0x0804f345 in event_server_main (argc=10, argv=0xbf8ef114, > > > service=0x804b191 <ps_service>) at event_server.c:882 > > > #8 0x0804ab26 in main (argc=10, argv=0xbf8ef114) at postscreen.c:888 > > > > This is enough. You are running "postscreen -v", you probably should > > not be running it with verbose logging, but that of course is no reason > > why it should crash, so... > > > > It looks like the ps_early_dnsbl_event() callback is called here with > > a client context that has been deallocated (client disconnected, ... > > before all the DNS blacklist lookups completed). The callback should > > be cancelled when the client state is deleted. > > > > The "dnsbl_score_cache" table contains per-client address call-back > > lists for each connection that wants the score results, and this callback > > list does not appear to be pruned when a client disconnects... > > I'll take it from here. > > Wietse
i have another segfault and backtrace if you need it. Vernon
