Access To OCFS2 Is Blocked With Reporting 'kernel: INFO: task COMM:NNNN blocked for more than 120 seconds' messages (Doc ID 2114175.1)

Last updated on DECEMBER 05, 2016

Applies to:

Linux OS - Version Oracle Linux 5.8 with Unbreakable Enterprise Kernel [2.6.39] to Oracle Linux 6.6 with Unbreakable Enterprise Kernel [2.6.39] [Release OL5U8 to OL6U6]
Oracle VM - Version 3.1.1 to 3.2.10 [Release OVM31 to OVM32]
Linux x86-64

Symptoms

OCFS2 storage access(ex. ls, du) would be blocked forever. Error messages are logged onto /var/log/messages, like:

 

Cause

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