[Bug #239096] After upgrading to Adaptive Server version 12.5, you may see a message reporting an object allocation map (OAM) mismatch for the sysobjects table when you run dbcc checkalloc.
Workaround: First, put the database in single-user mode using sp_dboption. Then, run dbcc tablealloc with the fix option to correct the mismatch:
dbcc tablealloc(sysobjects, "full", "fix")
