Linux Server with UEK2 Hangs Accessing NFSv4 on ZFSSA (Doc ID 2172962.1)

Last updated on APRIL 18, 2021

Applies to:

Oracle Cloud Infrastructure - Version N/A and later
Linux OS - Version Oracle Linux 5.8 with Unbreakable Enterprise Kernel [2.6.39] and later
Oracle VM - Version 3.2.1 and later
Oracle Exalogic Elastic Cloud Software - Version 2.0.6.2.3 and later
Linux x86-64

Symptoms

Linux server (bare metal or Virtual Machine) running UEK2 hangs combined with high CPU and memory usage on ZFSSA
NFS mount to ZFSSA using NFSv4
You can see following warnings on console or in the system log (/var/log/messages)

Cause

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Linux Server with UEK2 Hangs Accessing NFSv4 on ZFSSA (Doc ID 2172962.1)

Applies to:

Symptoms

Cause

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