Intermittent cellsrv crashes with ORA-07445 after upgrading to 12.2.1.1.7

Intermittent cellsrv crashes with ORA-07445 after upgrading to 12.2.1.1.7

Exadata X6-2 full and half racks were patched recently with 12.2.1.1.7 Aug/2018 quarterly patch set. An ORA-07445 started to observe and the cellsrv intermittently crashing with ORA-07445 error.

Following error is noticed in the cellsrv alert.log:

ORA-07445: exception encountered: core dump [0000000000000000+0] [11] [0x000000000] [] [] []

The above is registered as a bug whenever cell storage is patched with 12.2.1.1.7 or 12.2.1.1.8. Therefore, if you are planning to patch your cell storage software with one of the above versions, ensure you also apply patch 28181789 to avoid cellsrv intermittently crashing with ORA-07445 error. Otherwise, you need to upgrade the storage software with 18.1.5.

Symptom

Customer may experience intermittent cellsrv crashes with ORA-07445: [0000000000000000+0] [11] [0x000000000] after upgrading storage cell software version to 12.2.1.1.7 or 12.2.1.1.8

Change

Upgrade the Storage cell software to 12.2.1.1.7 or 12.2.1.1.8

Cause

Bug 28181789 - ORA-07445: [0000000000000000+0] AFTER UPGRADING CELL TO 12.2.1.1.7

Fix

Patch 28181789 is available for 12.2.1.1.7 and 12.2.1.1.8 Storage software releases. Follow the README to instructions to apply the patch.
~OR~
apply 18.1.5 and later which includes the fix of 28181789