ORA-7445 [ksfsblocker] And Instance Crash

(Doc ID 782253.1)

Last updated on NOVEMBER 28, 2016

Applies to:

Oracle Server - Enterprise Edition - Version: to - Release: 10.2 to 11.1
Information in this document applies to any platform.


When using Resource Manager on a NUMA enabled machine, it is possible to get an error like:
ORA-7445 [kskfblocker]
and the instance may crash subsequently.

The current SQL could be something like:

and the call stack looks similar to:
... kgkprtcpicknext kgskgnextthr kgskrunnextint kgskrunnext kgskbwt kskthbwt
kslwtb_resmgr opikndf2 ttcclr ttcc2u kpobii kpobav opibvg insdrvFastPath
inscovexe insExecStmtExecIniEngine insexe opiexe ...


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