Package: pdns Version: 2.9.17-11 Severity: normal As far as my logs go, from April 20th onward about once a day pdns restarts after receiving a signal 6 and prints a trace in my syslog:
Apr 25 14:00:04 oban pdns[14469]: Got a signal 6, attempting to print trace: Apr 25 14:00:04 oban pdns[14469]: /usr/sbin/pdns_server-instance [0x80b2cd6] Apr 25 14:00:04 oban pdns[14469]: [0xffffe420] Apr 25 14:00:04 oban pdns[14469]: /lib/tls/libc.so.6(abort+0x1d2) [0xb7de1fa2] Apr 25 14:00:04 oban pdns[14469]: /usr/lib/libstdc++.so.5 [0xb7fb8f57] Apr 25 14:00:04 oban pdns[14469]: /usr/lib/libstdc++.so.5 [0xb7fb8f94] Apr 25 14:00:04 oban pdns[14469]: /usr/lib/libstdc++.so.5 [0xb7fb9106] Apr 25 14:00:04 oban pdns[14469]: /usr/sbin/pdns_server-instance(_ZN12HuffmanCodec6encodeERKSsRSs+0x182) [0x8104582] Apr 25 14:00:04 oban pdns[14469]: /usr/sbin/pdns_server-instance(_ZN11BindBackend6lookupERK5QTypeRKSsP9DNSPacketi+0xd3) [0x811db93] Apr 25 14:00:04 oban pdns[14469]: /usr/sbin/pdns_server-instance(_ZN12UeberBackend6lookupERK5QTypeRKSsP9DNSPacketi+0x3f9) [0x80b9a49] Apr 25 14:00:04 oban pdns[14469]: /usr/sbin/pdns_server-instance(_ZN13PacketHandler11makeCanonicEP9DNSPacketS1_RSs+0x13b) [0x80803eb] Apr 25 14:00:04 oban pdns[14469]: /usr/sbin/pdns_server-instance(_ZN13PacketHandler8questionEP9DNSPacket+0xe86) [0x8084076] Apr 25 14:00:04 oban pdns[14469]: /usr/sbin/pdns_server-instance(_ZN11DistributorI9DNSPacketS0_13PacketHandlerE8questionEPS0_PFvRKNS2_10AnswerDataEE+0x5dc) [0x80e10cc] Apr 25 14:00:04 oban pdns[14469]: /usr/sbin/pdns_server-instance(_Z7qthreadPv+0x637) [0x80de5a7] Apr 25 14:00:04 oban pdns[14469]: /lib/tls/libpthread.so.0 [0xb7ef1b63] Apr 25 14:00:04 oban pdns[14469]: /lib/tls/libc.so.6(__clone+0x5a) [0xb7e9018a] Apr 25 14:00:04 oban pdns[18393]: Our pdns instance (14469) exited after signal 6 Apr 25 14:00:04 oban pdns[18393]: Respawning I've never seen anything like this before and I've been running powerdns for several years now. I'll attach my /etc/powerdns/pdns.conf Thanks for your time and effort! Guus Houtzager -- System Information: Debian Release: 3.1 APT prefers unstable APT policy: (500, 'unstable') Architecture: i386 (i686) Kernel: Linux 2.6.11.5 Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) Versions of packages pdns depends on: ii pdns-recursor 2.9.17-11 PowerDNS recursor ii pdns-server 2.9.17-11 extremely powerful and versatile n -- no debconf information
# Autogenerated configuration file template ################################# # allow-axfr-ips If disabled, DO allow zonetransfers from these IP addresses # allow-axfr-ips= 217.77.130.26, 217.77.129.12, 212.204.20.221, 217.77.129.26 ################################# # allow-recursion List of netmasks that are allowed to recurse # allow-recursion=127.0.0.1 ################################# # cache-ttl Seconds to store packets in the PacketCache # # cache-ttl=20 ################################# # chroot If set, chroot to this directory for more security # # chroot= ################################# # config-dir Location of configuration directory (pdns.conf) # config-dir=/etc/powerdns ################################# # config-name Name of this virtual configuration - will rename the binary image # # config-name= ################################# # control-console Debugging switch - don't use # # control-console=no ################################# # daemon Operate as a daemon # # daemon=no ################################# # default-soa-name name to insert in the SOA record if none set in the backend # default-soa-name=oban.houtzager.net ################################# # disable-axfr Disable zonetransfers but do allow TCP queries # disable-axfr=no ################################# # disable-tcp Do not listen to TCP queries # # disable-tcp=no ################################# # distributor-threads Default number of Distributor (backend) threads to start # distributor-threads=1 ################################# # fancy-records Process URL and MBOXFW records # # fancy-records=no ################################# # guardian Run within a guardian process # # guardian=no ################################# # launch Which backends to launch and order to query them in # launch=bind bind-config=/etc/powerdns/named.conf bind-check-interval=1 bind-enable-huffman ################################# # lazy-recursion Only recurse if question cannot be answered locally # # lazy-recursion=yes ################################# # load-modules Load this module - supply absolute or relative path # # load-modules= ################################# # local-address Local IP address to which we bind # local-address=217.77.130.26 ################################# # local-ipv6 Local IP address to which we bind # local-ipv6=2001:9C0:1:1004:0:0:0:26 ################################# # local-port The port on which we listen # # local-port=53 ################################# # log-dns-details If PDNS should log failed update requests # # log-dns-details= ################################# # log-failed-updates If PDNS should log failed update requests # # log-failed-updates= ################################# # logfile Logfile to use # # logfile=pdns.log ################################# # logging-facility Log under a specific facility # # logging-facility= ################################# # loglevel Amount of logging. Higher is more. Do not set below 3 # # loglevel=4 ################################# # master Act as a master # master=yes ################################# # max-queue-length Maximum queuelength before considering situation lost # # max-queue-length=5000 ################################# # max-tcp-connections Maximum number of TCP connections # # max-tcp-connections=10 ################################# # module-dir Default directory for modules # # module-dir=/usr/local/bin/../lib ################################# # negquery-cache-ttl Seconds to store packets in the PacketCache # # negquery-cache-ttl=60 ################################# # only-soa Make sure that no SOA serial is less than this number # # only-soa=org ################################# # out-of-zone-additional-processing Do out of zone additional processing # # out-of-zone-additional-processing=no ################################# # query-cache-ttl Seconds to store packets in the PacketCache # # query-cache-ttl=20 ################################# # query-logging Hint backends that queries should be logged # # query-logging=no ################################# # queue-limit Maximum number of milliseconds to queue a query # # queue-limit=1500 ################################# # receiver-threads Number of receiver threads to launch # # receiver-threads=1 ################################# # recursive-cache-ttl Seconds to store packets in the PacketCache # # recursive-cache-ttl=10 ################################# # recursor If recursion is desired, IP address of a recursing nameserver # # recursor=no ################################# # setgid If set, change group id to this gid for more security # setgid=dns ################################# # setuid If set, change user id to this uid for more security # setuid=dns ################################# # skip-cname Do not perform CNAME indirection for each query # # skip-cname=no ################################# # slave Act as a slave # # slave=no ################################# # slave-cycle-interval Reschedule failed SOA serial checks once every .. seconds # # slave-cycle-interval=60 ################################# # smtpredirector Our smtpredir MX host # # smtpredirector=a.misconfigured.powerdns.smtp.server ################################# # soa-minimum-ttl Default SOA mininum ttl # # soa-minimum-ttl=3600 ################################# # soa-serial-offset Make sure that no SOA serial is less than this number # # soa-serial-offset=0 ################################# # socket-dir Where the controlsocket will live # # socket-dir=/var/run ################################# # strict-rfc-axfrs Perform strictly rfc compliant axfrs (very slow) # # strict-rfc-axfrs=no ################################# # urlredirector Where we send hosts to that need to be url redirected # # urlredirector=127.0.0.1 ################################# # use-logfile Use a log file # # use-logfile=no ################################# # webserver Start a webserver for monitoring # # webserver=no ################################# # webserver-address IP Address of webserver to listen on # # webserver-address=127.0.0.1 ################################# # webserver-password Password required for accessing the webserver # # webserver-password= ################################# # webserver-port Port of webserver to listen on # # webserver-port=8081 ################################# # webserver-print-arguments If the webserver should print arguments # # webserver-print-arguments=no ################################# # wildcard-url Process URL and MBOXFW records # # wildcard-url=no ################################# # wildcards Honor wildcards in the database # wildcards=yes include=/etc/powerdns/pdns.d
