Stop kernel flooding your console with warning message:
--
First Display current level :
sysctl kernel.printk
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Set it using:
sysctl -w kernel.printk="2 4 1 7"
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- CUR = current severity level; only messages more important than this level are printed
- DEF = default severity level assigned to messages with no level
- MIN = minimum allowable CUR
- BTDEF = boot-time default CUR
https://en.wikipedia.org/wiki/Syslog#Severity_level
man klogctl explains the levels.
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