Solution : https://service.sap.com/sap/support/notes/1120875 (SAP Service marketplace login required)
Key words :
Oracle, "shutdown immediate", hangs.
Related Notes :
| 981875 | Optimizer merge fix for Oracle 10.2.0.2 |
| 938986 | Oracle Database 9.2: Patches for 9.2.0 |
| 521264 | Hang situations |