Hi Simon,
Try running memtest on your machine for some time (over a night f.e.)
and report back.
Ondrej Sury
On Oct 1, 2008, at 1:04, Simon Waters <[EMAIL PROTECTED]> wrote:
Package: bind9
Version: 1:9.5.0.dfsg.P2-1
Severity: important
syslog.log
Sep 30 23:23:54 derek kernel: [791273.512364] named[2244]: segfault
at dededef2 ip b7eaad0e sp b7549f90 error 7 in libdns.so.
43.0.1[b7e40000+141000]
I use bind9 running locally on my desktop box as the local recursive
resolver. Although this box has some unusual history (ran sid) as
far as I can
ascertain it is running correct version of bind9 and libraries for
lenny. The bind9 config is relatively straight forward, and close to
the
Debian default, with addition of some local authoritative zones.
Twice recently bind9 has stopped, dumping two core files in
/var/cache/bind. On both occasions problems were seen resolving some
names
(reporting timeouts) immediately before the crash.
-rw------- 1 bind bind 58179584 2008-09-30 23:23 core.2243
-rw------- 1 bind bind 43302912 2008-09-22 19:58 core.2463
On one occasion I immediately ran "rndc dumpdb" when I encountered
issues with name resolution, and the crash took place a few seconds
after the database was written to /var/cache/bind/named_dump.db
-rw-r--r-- 1 bind bind 81933 2008-09-30 23:20 named_dump.db
Please advise if this information would be useful in diagnosing bind
issues.
If any libraries are the wrong version for lenny I will probably
reinstall. I couldn't see other reports of this issue, although there
are other reports of bind silently stopping, which could be related.
Running gdb -c /var/cache/named/core.NNNN gave;
gdb -c /var/cache/bind/core.2243
GNU gdb 6.8-debian
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show
copying"
and "show warranty" for details.
This GDB was configured as "i486-linux-gnu".
(no debugging symbols found)
Core was generated by `/usr/sbin/named -u bind'.
Program terminated with signal 11, Segmentation fault.
[New process 2244]
[New process 2247]
[New process 2246]
[New process 2245]
[New process 2243]
#0 0xb7eaad0e in ?? ()
gdb -c core.2463
GNU gdb 6.8-debian
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show
copying"
and "show warranty" for details.
This GDB was configured as "i486-linux-gnu".
(no debugging symbols found)
Core was generated by `/usr/sbin/named -u bind'.
Program terminated with signal 11, Segmentation fault.
[New process 2464]
[New process 2467]
[New process 2466]
[New process 2465]
[New process 2463]
#0 0xb7e0b6d3 in ?? ()
daemon.log entries for most recent issue.
Sep 30 23:18:53 derek named[2243]: too many timeouts resolving
'www.l.google.com
/A' (in 'l.google.com'?): disabling EDNS
Sep 30 23:19:08 derek last message repeated 19 times
Sep 30 23:19:48 derek named[2243]: too many timeouts resolving
'NS7.NIC.uk/A' (i
n 'uk'?): disabling EDNS
Sep 30 23:20:07 derek last message repeated 27 times
Sep 30 23:20:42 derek named[2243]: received control channel command
'dumpdb'
Sep 30 23:20:42 derek named[2243]: dumpdb started
Sep 30 23:20:42 derek named[2243]: dumpdb complete
Sep 30 23:30:35 derek named[18257]: starting BIND 9.5.0-P2 -u bind
-- System Information:
Debian Release: lenny/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.26-1-686 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages bind9 depends on:
ii adduser 3.110 add and remove users
and groups
ii bind9utils 1:9.5.0.dfsg.P2-1 Utilities for BIND
ii debconf [debconf-2.0] 1.5.22 Debian configuration
management sy
ii libbind9-40 1:9.5.0.dfsg.P2-1 BIND9 Shared Library
used by BIND
ii libc6 2.7-13 GNU C Library: Shared
libraries
ii libcap2 2.11-2 support for getting/
setting POSIX.
ii libdb4.6 4.6.21-10 Berkeley v4.6 Database
Libraries [
ii libdns43 1:9.5.0.dfsg.P2-1 DNS Shared Library used
by BIND
ii libisc44 1:9.5.0.dfsg.P2-1 ISC Shared Library used
by BIND
ii libisccc40 1:9.5.0.dfsg.P2-1 Command Channel Library
used by BI
ii libisccfg40 1:9.5.0.dfsg.P2-1 Config File Handling
Library used
ii libkrb53 1.6.dfsg.4~beta1-4 MIT Kerberos runtime
libraries
ii libldap-2.4-2 2.4.10-3 OpenLDAP libraries
ii liblwres40 1:9.5.0.dfsg.P2-1 Lightweight Resolver
Library used
ii libssl0.9.8 0.9.8g-13 SSL shared libraries
ii libxml2 2.6.32.dfsg-4 GNOME XML library
ii lsb-base 3.2-20 Linux Standard Base 3.2
init scrip
ii netbase 4.34 Basic TCP/IP networking
system
bind9 recommends no packages.
Versions of packages bind9 suggests:
pn bind9-doc <none> (no description
available)
ii dnsutils 1:9.5.0.dfsg.P2-1 Clients provided with
BIND
pn resolvconf <none> (no description
available)
-- debconf information:
bind9/different-configuration-file:
bind9/run-resolvconf: false
bind9/start-as-user: bind
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