7988

Product

Name

Event ID

7988

Event Source

MSSQLSERVER

Component

SQLEngine

Symbolic

Name

DBCC2_PRE_CHECKS_CHAIN_LOOP_DETECTED

Message Text

System table pre-checks: Object ID O_ID. Loop in data chain detected at P_ID. Check

statement terminated because of an irreparable 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, DBCC CHECKDB

terminates immediately. A page linkage loop has been detected on page

P_ID. A page linkage

loop occurs when the next page pointers from a page eventually return to the page.

Run hardware diagnostics and correct any problems. Also examine the Microsoft Windows

system and application logs and the SQL Server error log to see whether the error occurred as

the result of hardware failure. Fix any hardware-related problems that are contained in the logs.

If you have persistent data corruption problems, try to swap out different hardware

components to isolate the problem. Check to make sure that the system does not have write-

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