If spamdyke was compiled on this server, I doubt the problem is glibc... it's 
more likely the messages are showing a location within glibc because the fault 
occurs within a library function.  From those log entries, I think the most 
likely clues are the ones mentioning a double free or corrupt memory -- that 
may indicate a bad pointer being passed to free() somewhere.  Definitely a bug!

Is there any chance you could recompile spamdyke with excessive output and 
capture a full log of one of these crashes?  That would be an immense help in 
reproducing this problem.  To enable excessive output, run these commands in 
the spamdyke source folder:
        ./configure --enable-excessive-output
        make
Then copy the new spamdyke binary over the old one.  To capture full log files, 
add the "full-log-dir" option to your configuration file.  When a crash 
happens, the full log file will spamdyke's environment and configuration, as 
well as every move it made up until the crash.  Feel free to send it to me 
privately if you don't want to post it to the list.

In the meantime, I'll do some more experimentation with the earlytalker filter 
and SMTPS, since those two features seem to be visible in the logs.  There's 
definitely a bug in there somewhere if it's happening so frequently on your 
server.

Thanks for reporting this!

-- Sam Clippinger




On Apr 7, 2015, at 5:44 PM, Dirk via spamdyke-users 
<spamdyke-users@spamdyke.org> wrote:

> Dear Sam,
> 
> at first thank you for glorious work with spamdyke! I'm using it since
> several years and it's very helpful to me.
> 
> At 30th march 2015 I've done an upgrade to version 5 (previous: last 4
> version). Since then I often get a segfault in spamdyke:
> 
> Tue Apr  7 12:05:19 2015] spamdyke[13607]: segfault at 14 ip
> 00007f60ce1e3ba8 sp 00007fff6bac3ce0 error 4 in
> libc-2.14.1.so[7f60ce19b000+187000]
> [Tue Apr  7 12:16:20 2015] spamdyke[13959]: segfault at 14 ip
> 00007fe1145bdba8 sp 00007fffa6426b90 error 4 in
> libc-2.14.1.so[7fe114575000+187000]
> [Tue Apr  7 12:47:31 2015] spamdyke[15309]: segfault at 14 ip
> 00007f9971e49ba8 sp 00007fffa03aad20 error 4 in
> libc-2.14.1.so[7f9971e01000+187000]
> [Tue Apr  7 15:30:51 2015] spamdyke[21795]: segfault at 14 ip
> 00007fb0cac66ba8 sp 00007fff209aa400 error 4 in
> libc-2.14.1.so[7fb0cac1e000+187000]
> [Tue Apr  7 16:13:02 2015] spamdyke[23130]: segfault at 14 ip
> 00007f47bd14eba8 sp 00007fff5b5fd1e0 error 4 in
> libc-2.14.1.so[7f47bd106000+187000]
> [Tue Apr  7 17:22:50 2015] spamdyke[26691]: segfault at 14 ip
> 00007f24e499bba8 sp 00007fff0cbd2060 error 4 in
> libc-2.14.1.so[7f24e4953000+187000]
> [Tue Apr  7 22:37:46 2015] spamdyke[6768]: segfault at 14 ip
> 00007fcd7c1ffba8 sp 00007fff0fd874f0 error 4 in
> libc-2.14.1.so[7fcd7c1b7000+187000]
> [Tue Apr  7 22:37:48 2015] spamdyke[6775]: segfault at 1a ip
> 00007fb2f498eba8 sp 00007fff6f12c380 error 4 in
> libc-2.14.1.so[7fb2f4946000+187000]
> [Tue Apr  7 22:37:49 2015] spamdyke[6780]: segfault at 1a ip
> 00007f4e9ee6fba8 sp 00007fff517bbbd0 error 4 in
> libc-2.14.1.so[7f4e9ee27000+187000]
> [Tue Apr  7 22:38:11 2015] spamdyke[6764]: segfault at c ip 00007ffc08375ba8
> sp 00007fff0c363ba0 error 4 in libc-2.14.1.so[7ffc0832d000+187000]
> [Tue Apr  7 23:15:12 2015] spamdyke[10219]: segfault at 14 ip
> 00007ff1e6e54ba8 sp 00007fffad8b0870 error 4 in
> libc-2.14.1.so[7ff1e6e0c000+187000]
> [Tue Apr  7 23:30:42 2015] spamdyke[10658]: segfault at 14 ip
> 00007f7e5db7eba8 sp 00007fff00aa9eb0 error 4 in
> libc-2.14.1.so[7f7e5db36000+187000]
> [Wed Apr  8 00:04:28 2015] spamdyke[12967]: segfault at 14 ip
> 00007f53171f2ba8 sp 00007fff6b2988d0 error 4 in
> libc-2.14.1.so[7f53171aa000+187000]
> [Wed Apr  8 00:04:51 2015] spamdyke[12983]: segfault at 14 ip
> 00007f08fecd3ba8 sp 00007fff780fdd80 error 4 in
> libc-2.14.1.so[7f08fec8b000+187000]
> [Wed Apr  8 00:18:19 2015] spamdyke[13457]: segfault at 14 ip
> 00007fb3059d7ba8 sp 00007fffb221b350 error 4 in
> libc-2.14.1.so[7fb30598f000+187000]
> [Wed Apr  8 00:18:31 2015] spamdyke[13463]: segfault at 14 ip
> 00007f1a1a635ba8 sp 00007fff32b32180 error 4 in
> libc-2.14.1.so[7f1a1a5ed000+187000]
> 
> 
> 
> It's an OpenSuse 12.1 under Plesk with Qmail. In /var/log/maillog you can
> find these entries:
> 
> 
> Apr  7 22:37:45 master /var/qmail/bin/relaylock[6770]:
> /var/qmail/bin/relaylock: mail from 190.24.206.141:65305
> (static-190-24-206-141.static.etb.net.co)
> Apr  7 22:37:47 master /var/qmail/bin/relaylock[6772]:
> /var/qmail/bin/relaylock: mail from 188.138.1.218:40092
> (atlantic381.dedicatedpanel.com)
> Apr  7 22:37:47 master /var/qmail/bin/relaylock[6773]:
> /var/qmail/bin/relaylock: mail from 188.138.1.218:41403
> (atlantic381.dedicatedpanel.com)
> Apr  7 22:37:47 master spamdyke[6773]: FILTER_EARLYTALKER delay: 25
> Apr  7 22:37:48 master /var/qmail/bin/relaylock[6775]:
> /var/qmail/bin/relaylock: mail from 188.138.1.218:41839
> (atlantic381.dedicatedpanel.com)
> Apr  7 22:37:48 master spamdyke[6775]: FILTER_EARLYTALKER delay: 25
> Apr  7 22:37:49 master /var/qmail/bin/relaylock[6778]:
> /var/qmail/bin/relaylock: mail from 188.138.1.218:42387
> (atlantic381.dedicatedpanel.com)
> Apr  7 22:37:49 master spamdyke[6778]: FILTER_EARLYTALKER delay: 25
> Apr  7 22:37:49 master /var/qmail/bin/relaylock[6780]:
> /var/qmail/bin/relaylock: mail from 188.138.1.218:42409
> (atlantic381.dedicatedpanel.com)
> Apr  7 22:37:49 master spamdyke[6780]: FILTER_EARLYTALKER delay: 25
> Apr  7 22:37:49 master spamdyke[6778]: ERROR: unable to start SSL/TLS
> connection: A protocol or library failure occurred,
> error:1406B0CB:lib(20):func(107):reason(203)
> Apr  7 22:37:49 master spamdyke[6778]: ERROR: unable to start SMTPS due to a
> protocol failure; closing connection
> Apr  7 22:37:49 master /var/qmail/bin/relaylock[6782]:
> /var/qmail/bin/relaylock: mail from 188.138.1.218:42898
> (atlantic381.dedicatedpanel.com)
> Apr  7 22:37:49 master spamdyke[6782]: FILTER_EARLYTALKER delay: 25
> Apr  7 22:37:50 master spamdyke[6782]: ERROR: unable to start SSL/TLS
> connection: A protocol or library failure occurred,
> error:1409442E:lib(20):func(148):reason(1070)
> Apr  7 22:37:50 master spamdyke[6782]: ERROR: unable to start SMTPS due to a
> protocol failure; closing connection
> Apr  7 22:37:50 master spamdyke[6782]: *** glibc detected ***
> /usr/local/bin/spamdyke: double free or corruption (fasttop):
> 0x0000000000651ed0 ***
> Apr  7 22:37:51 master spamdyke[6773]: ERROR(The operation failed due to an
> I/O error, Connection reset by peer()@(null):1): unable to read from SSL/TLS
> stream: .
> Apr  7 22:37:51 master spamdyke[6773]: *** glibc detected ***
> /usr/local/bin/spamdyke: double free or corruption (fasttop):
> 0x0000000000651ed0 ***
> Apr  7 22:37:56 master /var/qmail/bin/relaylock[6789]:
> /var/qmail/bin/relaylock: mail from 188.138.1.218:43026
> (atlantic381.dedicatedpanel.com)
> Apr  7 22:37:56 master spamdyke[6789]: FILTER_EARLYTALKER delay: 25
> Apr  7 22:37:56 master /var/qmail/bin/relaylock[6791]:
> /var/qmail/bin/relaylock: mail from 188.138.1.218:55694
> (atlantic381.dedicatedpanel.com)
> Apr  7 22:37:56 master spamdyke[6791]: FILTER_EARLYTALKER delay: 25
> Apr  7 22:37:56 master spamdyke[6791]: ERROR: unable to start SSL/TLS
> connection: A protocol or library failure occurred,
> error:1408A0C1:lib(20):func(138):reason(193)
> Apr  7 22:37:56 master spamdyke[6791]: ERROR: unable to start SMTPS due to a
> protocol failure; closing connection
> Apr  7 22:37:57 master spamdyke[6789]: ERROR: unable to start SSL/TLS
> connection: A protocol or library failure occurred,
> error:1409442E:lib(20):func(148):reason(1070)
> Apr  7 22:37:57 master spamdyke[6789]: ERROR: unable to start SMTPS due to a
> protocol failure; closing connection
> Apr  7 22:37:57 master spamdyke[6789]: *** glibc detected ***
> /usr/local/bin/spamdyke: double free or corruption (fasttop):
> 0x0000000000651ed0 ***
> Apr  7 22:38:04 master spamdyke[6549]: TIMEOUT from: (unknown) to: (unknown)
> origin_ip: 95.219.93.25 origin_rdns: (unknown) auth: (unknown) encryption:
> (none) reason: TIMEOUT
> 
> 
> It seems to be related to the glibc which is installed on the machine in
> version 2.14.1. Do you have any ideas to solve the problem?
> 
> 
> Dirk Kannapinn
> CEO | IT-Management
> 
> 
> DK ONE TECH
> Professional IT-Services
> Nauener Stra├če 64, D-13581 Berlin
> Fon:     +49.180.16666.266.117
> Fon:     +49.30.351.393.03
> Fax:     +49.30.351.393.05
> SIP:      4918016666266...@sipgate.de
> E-Mail:  dirk.kannap...@dk-one.de
> Web:     www.dk-one.de
> 
> Inhabergef├╝hrtes Dienstleistungsunternehmen
> Inhaber Dirk Kannapinn
> USt-ID DE193561612
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