Oracle VM server going to hung state with CPU soft lock up error " Workqueue: qlcnic_mailbox qlcnic_83xx_mailbox_worker [qlcnic]"

(Doc ID 2359864.1)

Last updated on FEBRUARY 26, 2018

Applies to:

Oracle VM - Version 3.4.3 and later
Information in this document applies to any platform.

Symptoms


OVS server getting hung with following messages and had to reboot it to recover.

ERROR
--------

Nov 8 02:43:05 test1 kernel: [1273359.516984] NMI watchdog: BUG: soft lockup - CPU#5 stuck for 22s! [kworker/u40:1:12732]

 

Cause

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