#:schema ../../../schema/clause.schema.json

[govctl]
id = "C-CAPACITY-AND-EVICTION"
title = "Owner-lane capacity and eviction"
kind = "normative"
status = "active"
since = "0.1.0"

[content]
text = """
If owner-lane allocation cannot be satisfied from immediately available owner-lane pages, the system SHOULD use the existing owner-lane eviction and retry mechanism before reporting capacity failure.

After owner-lane eviction and retry, if the required owner lanes remain unavailable, the system MUST raise a recoverable capacity-wait error rather than falling back to legacy allocation.

The capacity-wait error MUST include required, available, and deficit page counts by owner lane when those diagnostics are available.

The system MUST preserve allocator state when an owner-lane allocation attempt fails without selecting pages.

**Rationale:** Owner-lane pressure is lane-specific, not aggregate-capacity-specific. Reporting lane diagnostics preserves scheduler recoverability and prevents legacy allocation from hiding placement bugs."""