Might be caused by nothing listening on /dev/xconsole – remediation: Comment out the relevant entries in /etc/rsyslogd.conf:
Change:
daemon.*;mail.*;\ news.err;\ *.=debug;*.=info;\ *.=notice;*.=warn |/dev/xconsole
To:
#daemon.*;mail.*;\ # news.err;\ # *.=debug;*.=info;\ # *.=notice;*.=warn |/dev/xconsole