Ubuntu
sysklogd package

  1. Bug #255635
  2. Comment #3

Comment 3 for bug 255635

Revision history for this message
Martin Pitt (pitti) wrote : Re: No messages in /proc/kmsg

I used this to reliably and conveniently produce kernel messages and verify that dmesg has new stuff:

$ sudo dmesg -c
$ sudo /etc/init.d/apparmor restart
Reloading AppArmor profiles : done.
$ sudo dmesg -c
[68804.887693] type=1505 audit(1218098412.816:494): operation="profile_replace" name="/usr/share/gdm/guest-session/Xsession" name2="default" pid=27662
[68805.155782] type=1505 audit(1218098413.084:495): operation="profile_replace" name="/usr/lib/cups/backend/cups-pdf" name2="default" pid=27667
[68805.156318] type=1505 audit(1218098413.084:496): operation="profile_replace" name="/usr/sbin/cupsd" name2="default" pid=27667

I started this in the background before:

sudo /etc/init.d/klogd stop
sudo tail -f /proc/kmsg

no output from the latter

printk looks correct to me:

$ cat /proc/sys/kernel/printk
4 4 1 7