Hello, and Happy 2013.
I have same problem with a Kimsufi server to OVH Canada.
IPv6 is configured on this Ubuntu 12.10 server.
When I start the ntpd task, ntpd make a segfault :
Jan 1 17:56:02 ks397789 ntpd[1821]: ntpd 4.2.6p3@1.2290-o Mon Aug 20 15:15:21
UTC 2012 (1)
Jan 1 17:56:02 ks397789 ntpd[1822]: proto: precision = 0.200 usec
Jan 1 17:56:02 ks397789 ntpd[1822]: ntp_io: estimated max descriptors: 1024,
initial socket boundary: 16
Jan 1 17:56:02 ks397789 ntpd[1822]: Listen and drop on 0 v4wildcard 0.0.0.0
UDP 123
Jan 1 17:56:02 ks397789 ntpd[1822]: Listen and drop on 1 v6wildcard :: UDP 123
Jan 1 17:56:02 ks397789 ntpd[1822]: Listen normally on 2 lo 127.0.0.1 UDP 123
Jan 1 17:56:02 ks397789 ntpd[1822]: Listen normally on 3 eth0 192.95.25.135
UDP 123
Jan 1 17:56:02 ks397789 ntpd[1822]: Listen normally on 4 eth0
fe80::e269:95ff:fed8:6652 UDP 123
Jan 1 17:56:02 ks397789 ntpd[1822]: Listen normally on 5 eth0
2607:5300:60:2987::1 UDP 123
Jan 1 17:56:02 ks397789 ntpd[1822]: Listen normally on 6 lo ::1 UDP 123
Jan 1 17:56:02 ks397789 ntpd[1822]: peers refreshed
Jan 1 17:56:02 ks397789 ntpd[1822]: Listening on routing socket on fd #23 for
interface updates
Jan 1 17:56:06 ks397789 ntpd[1822]: Deleting interface #6 lo, ::1#123,
interface stats: received=0, sent=0, dropped=0, active_time=2 secs
Jan 1 17:56:06 ks397789 ntpd[1822]: Deleting interface #5 eth0,
2607:5300:60:2987::1#123, interface stats: received=0, sent=0, dropped=0,
active_time=2 secs
Jan 1 17:56:06 ks397789 ntpd[1822]: 2605:1b00:0:1::1d interface
2607:5300:60:2987::1 -> (none)
Jan 1 17:56:06 ks397789 kernel: ntpd[1822]: segfault at 8 ip 00007f176a1b5321
sp 00007fffebca98d0 error 4 in ntpd[7f176a198000+96000]
Jan 1 17:56:06 ks397789 kernel: grsec: From 109.129.16.136: Segmentation fault
occurred at 0000000000000008 in /usr/sbin/ntpd[ntpd:1822] uid/euid:110/110
gid/egid:118/118, parent /sbin/init[init:1] uid/euid:0/0 gid/egid:0/0
Seem to crash after deleting the IPv6 interface 2607:5300:60:2987::1
The IPv6 :
# ifconfig
eth0 Link encap:Ethernet HWaddr e0:69:95:d8:66:52
inet addr:192.95.25.135 Bcast:192.95.25.255 Mask:255.255.255.0
inet6 addr: fe80::e269:95ff:fed8:6652/64 Scope:Link
inet6 addr: 2607:5300:60:2987::1/64 Scope:Global
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1140147 errors:0 dropped:0 overruns:0 frame:0
TX packets:1046438 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:162234138 (162.2 MB) TX bytes:208465599 (208.4 MB)
Interrupt:44 Base address:0xa000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:94416 errors:0 dropped:0 overruns:0 frame:0
TX packets:94416 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:12404004 (12.4 MB) TX bytes:12404004 (12.4 MB)
Thanks.
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https://bugs.launchpad.net/bugs/1069543
Title:
ntpd crashes when network interface goes down
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