Shared Servers Hang Waiting on 'Virtual Circuit Status' Event (Doc ID 465444.1)

Last updated on JUNE 13, 2013

Applies to:

Oracle Database - Enterprise Edition - Version 9.2.0.1 to 10.2.0.3 [Release 9.2 to 10.2]
Information in this document applies to any platform.
Oracle Multi-Threaded Server (MTS)
** Checked for relevance on 25-Oct-2011
** Checked for relevance on 27-Mar-2013

Symptoms

Active shared server connections hang waiting on 'virtual circuit status' wait event, and no new shared server connections can be made. Only dedicated server connections are possible.  

There may be several internal errors raised in the alertlog prior to this also, particularly ORA-7445 errors with various arguments which show indications of an SGA memory corruption.  For example:

    *** glibc detected *** corrupted double-linked list: 0x00000000067e64c0 ***

Killing the active shared server connections doesn't help resolve the problem.

Cause

Sign In with your My Oracle Support account

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

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms