# K1631–K1635: inode slot generation ownership

An inode slot has one current owner and a nonzero generation. Allocation
requires a free slot and nonzero owner. Releasing the live handle retires its
owner and advances generation before the slot can be reused. A stale handle
cannot read or release the new owner's inode. Generation overflow refuses
release without changing the live slot.

The positive fixture releases slot 5 at generation 7 and reuses it at
generation 8. The negative fixture tries the old handle after reuse and
requires an explicit stale error with the new owner unchanged. These are
synthetic slot records; durable inode-table updates and six guest profiles
require separate K1635 evidence.