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Messages "rcu_bh_state detected stall on CPU #" Are Logged Onto Syslog (Doc ID 1537207.1)

Last updated on AUGUST 04, 2018

Applies to:

Linux OS - Version Oracle Linux 5.8 with Unbreakable Enterprise Kernel [2.6.39] to Oracle Linux 6.4 with Unbreakable Enterprise Kernel [2.6.39] [Release OL5U8 to OL6U4]
Information in this document applies to any platform.

Symptoms

 Occasionally there are following messages logged onto syslog, but the server seems to work fine.

kernel back trace for every CPUs would follow these messages.

Changes

 When the server works in high load.

Cause

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