Lately I've been getting diagnostic messages on the console like:

Data modified on freelist: word 0 of object 0xf8765e30 size 14 previous type VM pgdata (0xdeadbe00 != 0xdeadbeef)
Data modified on freelist: word 0 of object 0xf8765f80 size 9 previous type temp (0xdeadbe00 != 0xdeadbeef)
Data modified on freelist: word 0 of object 0xf8765090 size 16 previous type temp (0xdeadbe00 != 0xdeadbeef)

   I recently added DIAGNOSTICS to my kernel, so I wouldn't have seen
these before. Should I be concerned? Thanks.

                                      Gary D. Duzan
                         Humble Practitioner of the Computer Arts