"kernel: hrtimer: interrupt took <number> ns" in /var/log/messages (Doc ID 1554615.1)

Last updated on JUNE 13, 2013

Applies to:

Linux OS - Version Oracle Linux 5.5 to Oracle Linux 6.4 with Unbreakable Enterprise Kernel [2.6.39] [Release OL5U5 to OL6U4]
Generic Linux

Symptoms

"kernel: hrtimer: interrupt took [n] ns" logged in /var/log/messages without any other related messages or errors.

It just shows single message to report how long an interrupt took in hrtimer queue.

 

 

 

Cause

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