ORA-04024: self-deadlock detected while trying to mutex pin cursor

Error:

Database errors when trying to open with the following:

SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-00604: error occurred at recursive SQL level 4
ORA-04024: self-deadlock detected while trying to mutex pin cursor 0x2CD828600

Fix:

Apply the below patch to resolve this issue.

Patch 21372829.