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Oracle Linux: UEK4 Kernel Hung with Many Processes Stuck in "fanotify_handle_event" (Doc ID 2889387.1)

Last updated on AUGUST 14, 2022

Applies to:

Linux OS - Version Oracle Linux 6.0 to Oracle Linux 7.5 with Unbreakable Enterprise Kernel [4.1.12] [Release OL6 to OL7U5]
Linux x86-64


This issue has been observed on Oracle Linux 6 or Oracle Linux 7 systems which run a UEK4 kernel. In all currently reported cases, the bug is always triggered by antivirus software either from McAfee or TrendMicro. In a vmcore file captured from the hung system, the typlical hung process's call stacks look like below, 

And there are normally many different processes get stuck in the same point.




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