Killed Session Hung Consuming 100% CPU (Doc ID 458881.1)

Last updated on DECEMBER 06, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 9.2.0.8 and later
Information in this document applies to any platform.
***Checked for relevance on 20-Sep-2016***

Symptoms

After Killing a session, we see that session is not cleared. At the OS level , process for this session consuming 100% cpu.

Even Kill -9 does not help as PMON is unable to clear the session. Only Restart of database helps.

Cause

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