Displaying debug level printk messages in systemd

Orion Agali listmail368 at gmail.com
Sat Jul 11 09:06:30 EDT 2015

I'm using Arch and I cannot figure out how to get printk debug messages to display in journalctl.

I tried the following:
  * Set LogLevel=debug in /etc/systemd/systemd.conf
  * Add kernel parameter 'debug' on boot
  * Setting loglevel=8 in /proc/sys/kernel/printk
  * dmsg -n 8

Consider the following module:
Konsole output

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
static int __init task1_init(void)
    pr_notice("I am at level notice");
    pr_debug("I am at level debug.");
    return 0;
static void __exit task1_exit(void){}

The notice level is printed but the debug level is not.
The debug message is not in dmesg or /dev/kmsg either

The answer is probably straight forward, but I've hit a wall so I'm hoping
somebody here will be able to point me in the right direction
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