Description of kernel.printk values

Description of kernel.printk values

"0" → Emergency messages, system is about to crash or is unstable pr_emerg
"1" → Something bad happened and action must be taken immediately pr_alert
"2" → A critical condition occurred like a serious hardware/software failure pr_crit
"3" → An error condition, often used by drivers to indicate difficulties with the hardware pr_err
"4" → A warning, meaning nothing serious by itself but might indicate problems pr_warning
"5" → Nothing serious, but notably nevertheless. Often used to report security events. pr_notice
"6" → Informational message e.g. startup information at driver initialization pr_info
"7" → Debug messages pr_debug, pr_devel if DEBUG is defined
KERN_DEFAULT "d" The default kernel loglevel
KERN_CONT "" "continued" line of log printout (only done after a line that had no enclosing)