That happens if you put to much output on your serial console

We searched for multiple days why one of our cluster machines was hanging for a couple of seconds, before it was fenced. We found out that the iptables LOG did put to much output onto the serial.

I wrote a kernel module to create a hugh amount of messages, and the serial line got scrambled. I got this output on the serial:

[  222.111488] Clocksource tsc unstable (delta = -60129537542 ns).  Enable clocksource lover by adding clocksource_failover kernel parameter.
but this in the syslog:

[  222.111488] Clocksource tsc unstable (delta = -60129537542 ns).  Enable clocksource failover by adding clocksource_failover kernel parameter.
The romatic guy in me wants to keep the serial version 🙂

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