My Oracle Support Banner

Resolving Issues Where 'PMON failed to acquire latch, see PMON dump' Warnings are Seen in the Alert Log (Doc ID 976714.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database - Personal Edition - Version and later
Oracle Database - Standard Edition - Version and later
Information in this document applies to any platform.


Explain the steps necessary and the diagnostics to collect for a hang situation with messages such as :

PMON failed to acquire latch, see PMON dump

in the alert log.

NOTE: The information in this article relates to Oracle 10g and above but though the trace and other information in those releases may differ, some of the concepts may be applicable to earlier releases.



To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
 Issue Description
 Known Bugs:

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.