Gigantic gdm-2.24 log files

[Peter Ulrich Kruppa]

Hi,

when I list /var/log/gdm I get some extremly big files:
	------------------------------------
ls -lh
total 11349526
[...]
-rw-r--r--  1 root  gdm   1,4K  7 Feb 07:15 :0-slave.log.4
-rw-r--r--  1 root  gdm   4,7G  9 Feb 16:24 :0.log
			  ^^^^
-rw-r--r--  1 root  gdm   102K  8 Feb 19:02 :0.log.1
-rw-r--r--  1 root  gdm   6,1G  8 Feb 18:06 :0.log.2
			  ^^^^
-rw-r--r--  1 root  gdm   8,1M  7 Feb 07:31 :0.log.3
-rw-r--r--  1 root  gdm   2,5M  7 Feb 07:19 :0.log.4
[...]
	------------------------------------

The remaining files behave normally. What might have happened there?

Greetings,

Uli.