DBCC could not obtain a lock on this object because the lock request timeout period was exceeded (TEMPDB)

Hi All,

I'm getting the following error when running a DBCC CHECKDB on TEMPDB:

Running DBCC CHECKDB for tempdb
USE [tempdb]; DBCC CHECKDB WITH NO_INFOMSGS, ALL_ERRORMSGS;
Msg 5245, Level 16, State 1, Line 1
Object ID 34 (object 'sys.sysschobjs'):  DBCC could not obtain a lock on this object because the lock request timeout period was exceeded.  This object has been skipped and will not be processed.

dbcc checktable ('sys.sysschobjs')
Msg 5245, Level 16, State 1, Line 1
Object ID 34 (object 'sys.sysschobjs'):  DBCC could not obtain a lock on this object because the lock request timeout period was exceeded.  This object has been skipped and will not be processed.

On my other SQL instances (SQL 2005, 2008, 2008 R2) I don't run into this error.

This is a SQL 2008 server (10.0.5500). I couldn't find in other forums what could be causing this error but it's causing my daily dbcc checkdb job to dail (all other dbs run fine).

Any thoughts/comments appreciated.

Thanks,