strange value of owner = 0 in onstat -k

Hi, I have Informix 11.50 FC8. I'm looking for locks held on an instance. The instance is recently started. In particular, I need to know who is locking a record in one table. But, when I execute onstat -k, it shows: Locks address wtlist owner lklist type tblsnum rowid key#/bsiz c0000000033a66d0 0 c0000000705c4fb0 0 S 100002 212 0 c0000000046b93d0 0 0 0 HDR+IX 90000d 0 0 c0000000046b9420 0 0 c0000000046b93d0 HDR+X 90000d e9f503 0 c0000000046b9560 0 c0000000705b7998 0 HDR+S 100002 212 0 4 active, 1000000 total, 131072 hash buckets Then, I know that tblsnum = 90000d is holding a lock in rowid e9f503 But, the strange thing is that the owner is zero What it means the owner = 0 ? Thanks in advance Roger Vilca