Description System table pre-checks: Object ID O_ID has chain linkage mismatch. P_ID1->next = P_ID2, but P_ID2->prev = P_ID3. Check statement terminated due to unrepairable error.
The first phase of a DBCC CHECKDB is to do primitive checks on the data pages of critical system tables. If any errors are found, they cannot be repaired; therefore, the DBCC CHECKDB terminates immediately.