[pkg-ntp-maintainers] Bug#407216: ntp fails if I take the network down and back up

[Chris Moore]

Package: ntp
Version: 1:4.2.2.p4+dfsg-1
Severity: normal

If I run 'sudo ifdown eth2' and 'sudo ifup eth2' to bounce my network
connection, the ntp daemon breaks, and needs restarting before it will
work again.  In the syslog I see:

Jan 16 23:01:04 trpaslik ntpd[31582]: sendto(80.74.64.2) (fd=21): Invalid argument
Jan 16 23:01:07 trpaslik ntpd[31582]: sendto(88.191.17.134) (fd=21): Invalid argument
Jan 16 23:01:08 trpaslik ntpd[31582]: sendto(80.85.129.2) (fd=21): Invalid argument
Jan 16 23:01:14 trpaslik ntpd[31582]: sendto(216.252.70.172) (fd=21): Invalid argument
Jan 16 23:02:10 trpaslik ntpd[31582]: sendto(80.74.64.2) (fd=21): Invalid argument
Jan 16 23:02:12 trpaslik ntpd[31582]: sendto(88.191.17.134) (fd=21): Invalid argument
Jan 16 23:02:12 trpaslik ntpd[31582]: sendto(80.85.129.2) (fd=21): Invalid argument
Jan 16 23:02:17 trpaslik ntpd[31582]: sendto(216.252.70.172) (fd=21): Invalid argument
Jan 16 23:03:15 trpaslik ntpd[31582]: sendto(88.191.17.134) (fd=21): Invalid argument
Jan 16 23:03:15 trpaslik ntpd[31582]: sendto(80.85.129.2) (fd=21): Invalid argument
Jan 16 23:03:16 trpaslik ntpd[31582]: sendto(80.74.64.2) (fd=21): Invalid argument
Jan 16 23:03:21 trpaslik ntpd[31582]: sendto(216.252.70.172) (fd=21): Invalid argument

ie. 4 messages approximately once per minute.

The same problem happened when I took down the wireless network and
brought up the wired network instead.

'sudo /etc/init.d/ntp restart' fixes things.


-- System Information:
Debian Release: 4.0
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.19.2
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)

Versions of packages ntp depends on:
ii  adduser                     3.101        Add and remove users and groups
ii  libc6                       2.3.6.ds1-10 GNU C Library: Shared libraries
ii  libcap1                     1:1.10-14    support for getting/setting POSIX.
ii  libreadline5                5.2-2        GNU readline and history libraries
ii  libssl0.9.8                 0.9.8c-4     SSL shared libraries
ii  lsb-base                    3.1-22       Linux Standard Base 3.1 init scrip
ii  netbase                     4.28         Basic TCP/IP networking system
ii  perl                        5.8.8-7      Larry Wall's Practical Extraction 

ntp recommends no packages.

-- no debconf information