From Fedora Project Wiki

Configure to debug kernel and wpa_supplicant

Sometimes is needed to have kernel debug messages together with wpa_supplicant logged in one place. Below changes allow to do this.

  • Edit /etc/sysconfig/wpa_supplicant file to log into /var/log/messages
OTHER_ARGS="-u -f /var/log/messages -P /var/run/wpa_supplicant.pid"
  • Edit /etc/rsyslog.conf file to log all kernel messages into /var/log/messages
kern.*;*.info;mail.none;authpriv.none;cron.none                /var/log/messages
  • Restart services
/etc/init.d/wpa_supplicant restart
/etc/init.d/rsyslog restart

Configure for verbose debug

Also requires settings from above.

  • Edit /etc/sysconfig/wpa_supplicant file to enable verbose debug
 
OTHER_ARGS="-u -f /var/log/messages -dd -P /var/run/wpa_supplicant.pid"
  • Edit /etc/init.d/NetworkManager file to enable verbose debug
daemon --pidfile $pidfile --check $servicename $processname --pid-file=$pidfile --log-level=DEBUG
  • Restart services
/etc/init.d/NetworkManager restart
/etc/init.d/wpa_supplicant restart
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