Bug#412886: exim4: Segfaults occurring

[Ronny Adsetts]

Package: exim4
Version: 4.50-8sarge2
Severity: normal


I've recently, as of early this morning, started to see segfaults from
exim4. I'm seeing this in kern.log:

Feb 28 03:07:02 nakor kernel: exim4[4242]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffed58 error 4
Feb 28 03:07:18 nakor kernel: exim4[4244]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffed58 error 4
Feb 28 03:07:34 nakor kernel: exim4[4246]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffed58 error 4
Feb 28 03:07:51 nakor kernel: exim4[4248]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffed58 error 4
Feb 28 03:08:07 nakor kernel: exim4[4249]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffed58 error 4

After this first batch of reports, exim consistently segfaults at 8
minutes past the hour, every hour:

Feb 28 04:08:09 nakor kernel: exim4[11647]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffed58 error 4
Feb 28 05:08:11 nakor kernel: exim4[19087]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffed58 error 4
Feb 28 06:08:15 nakor kernel: exim4[26456]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffed58 error 4
Feb 28 07:08:16 nakor kernel: exim4[1543]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffed58 error 4
Feb 28 08:08:17 nakor kernel: exim4[9165]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffed58 error 4
Feb 28 09:08:18 nakor kernel: exim4[16584]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffed58 error 4
Feb 28 10:08:20 nakor kernel: exim4[24134]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffed58 error 4
Feb 28 11:08:23 nakor kernel: exim4[31687]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffed58 error 4
Feb 28 12:08:28 nakor kernel: exim4[7162]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffd358 error 4
Feb 28 13:08:30 nakor kernel: exim4[14612]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffd358 error 4
Feb 28 14:08:31 nakor kernel: exim4[22000]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffd358 error 4
Feb 28 15:08:34 nakor kernel: exim4[29515]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffd358 error 4
Feb 28 16:08:36 nakor kernel: exim4[4891]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffd358 error 4
Feb 28 17:08:37 nakor kernel: exim4[12374]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffd358 error 4

Please let me know if there's any other information you'd like. In the
meantime I'll continue to dig around and see what I can find.

Thanks.

Ronny

-- Package-specific info:
Exim version 4.50 #1 built 01-Jul-2006 17:21:23
Copyright (c) University of Cambridge 2004
Berkeley DB: Sleepycat Software: Berkeley DB 4.2.52: (December  3, 2003)
Support for: iconv() IPv6 PAM Perl GnuTLS Content_Scanning Old_Demime
Lookups: lsearch wildlsearch nwildlsearch iplsearch cdb dbm dbmnz dnsdb dsearch ldap ldapdn ldapm mysql nis nis0 passwd pgsql
Authenticators: cram_md5 cyrus_sasl plaintext spa
Routers: accept dnslookup ipliteral iplookup manualroute queryprogram redirect
Transports: appendfile/maildir/mailstore/mbx autoreply lmtp pipe smtp
Fixed never_users: 0
Configuration file is /var/lib/exim4/config.autogenerated
# /etc/exim4/update-exim4.conf.conf
#
# Edit this file and /etc/mailname by hand and execute update-exim4.conf
# yourself or use 'dpkg-reconfigure exim4-config'
#
# Please note that this is _not_ a dpkg-conffile and that automatic changes
# to this file might happen. The code handling this will honor your local
# changes, so this is usually fine, but will break local schemes that mess
# around with multiple versions of the file.
#
# update-exim4.conf uses this file to determine variable values to replace
# the DEBCONFsomethingDEBCONF strings in the configuration template files.
#
# Most settings found in here do have corresponding questions in the
# Debconf configuration, but not all of them.
#
# This is a Debian specific file

dc_eximconfig_configtype='internet'
dc_other_hostnames='amazing-internet.net : amazing-internet.com : amazinginternet.net : amazinginternet.com : grahamhancock.com : ccldn.org.uk'
dc_local_interfaces=''
dc_readhost='amazing-internet.net'
dc_relay_domains=''
dc_minimaldns='false'
dc_relay_nets='172.16.1.0/24 : 172.16.8.0/24'
dc_smarthost='mail.amazing-internet.net'
CFILEMODE='644'
dc_use_split_config='true'
dc_hide_mailname='true'
dc_mailname_in_oh='true'
mailname:amazing-internet.net

-- System Information:
Debian Release: 3.1
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.8-12-em64t-p4-smp
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)

Versions of packages exim4 depends on:
ii  exim4-base                  4.50-8sarge2 support files for all exim MTA (v4
ii  exim4-daemon-heavy          4.50-8sarge2 exim MTA (v4) daemon with extended

-- no debconf information