Bug#303392: kdm: records each login twice in utmp/wtmp

[Andrew Schulman <andrex@alumni.utexas.net>]

Package: kdm
Version: 4:3.4.0-0pre2
Severity: normal


Each time a user logs in via kdm, the event is recorded twice in utmp
and wtmp.  For example, here users carey and andrex are logged in on
VT7 and VT8:

$ w
 09:29:38 up 1 day, 21:45,  4 users,  load average: 0.19, 0.20, 0.20
USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU WHAT
carey    :0       -                Mon16   ?xdm?   1:54m  0.02s /bin/sh /usr/bi
carey    :0       -                Mon16   ?xdm?   1:54m  0.02s /bin/sh /usr/bi
andrex   :1       -                Mon20   ?xdm?   1:54m  0.04s /bin/sh /usr/bi
andrex   :1       -                Mon20   ?xdm?   1:54m  0.04s /bin/sh /usr/bi

$ last | head -4
andrex   :1                            Mon Apr  4 20:09   still logged in
andrex   :1                            Mon Apr  4 20:09 - 20:09  (00:00)
carey    :0                            Mon Apr  4 16:53   still logged in
carey    :0                            Mon Apr  4 16:53 - 16:53  (00:00)

carey and andrex didn't log in twice, just once each.  last shows them
logging in, out, and back in again, while w shows them still logged in
twice.

Logins via ssh or login don't show this behavior.

-- System Information:
Debian Release: 3.1
  APT prefers testing
  APT policy: (990, 'testing'), (200, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.10
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)

Versions of packages kdm depends on:
ii  debconf              1.4.47              Debian configuration management sy
ii  kdebase-bin          4:3.4.0-0pre2       core binaries for the KDE base mod
ii  kdelibs4             4:3.4.0-0pre2       core libraries for all KDE applica
ii  libc6                2.3.2.ds1-20        GNU C Library: Shared libraries an
ii  libgcc1              1:3.4.3-12          GCC support library
ii  libpam-runtime       0.76-22             Runtime support for the PAM librar
ii  libpam0g             0.76-22             Pluggable Authentication Modules l
ii  libqt3c102-mt        3:3.3.3-8           Qt GUI Library (Threaded runtime v
ii  libstdc++5           1:3.3.5-8           The GNU Standard C++ Library v3
ii  libx11-6             4.3.0.dfsg.1-12.0.1 X Window System protocol client li
ii  libxtst6             4.3.0.dfsg.1-12.0.1 X Window System event recording an
ii  xbase-clients        4.3.0.dfsg.1-12.0.1 miscellaneous X clients
ii  xlibs                4.3.0.dfsg.1-12     X Keyboard Extension (XKB) configu

-- debconf information:
  kdm/stop_running_server_with_children: false
* shared/default-x-display-manager: kdm
  kdm/daemon_name: /usr/bin/kdm