The budget in _sweep_agent_cache_under_pressure comes from the gateway's own
cgroup memory.high/memory.max, but read_anon_rss_mb() read /proc/self/status
RssAnon: only the main process. Every child in the unit (execute_code kernels,
terminal commands) is charged against the same limit, so a kernel at 4.7 GiB
pushed the unit to MemoryHigh while the valve saw <1.6 GiB and never fired;
systemd's stop then SIGKILLed the gateway mid-flush (the #80764 signature).
Under a capped cgroup v2, read own memory.stat `anon` (the same scope as the
budget); uncapped, or when the file is unreadable, keep the self reading.
_finite_limit is factored out of _cgroup_limit_bytes so the cap check and
the budget agree on what "unlimited" means.
Fixes#110549
docs/ was not the documentation site; it was a grab bag of long-form
design notes, wire contracts and observability guides that landed with
feature PRs because their authors needed somewhere to put them. Root
AGENTS.md already says long-form dev docs live in
website/docs/developer-guide/; this moves the 14 living documents there
(or to the matching user-guide section) so they are published, searchable
and linked from the sidebar instead of being found by grep only.
Developer guide: micro-compaction, gateway-session-lifecycle (was
session-lifecycle), state-db-recovery, multiplexing-gateway,
chronos-managed-cron-contract, relay-connector-contract, observer-hooks
(was observability/README), gateway-monitoring (observability/monitoring),
relay-shared-metrics, middleware, streaming-tts, billing-lifecycle.
User guide: egress/network-isolation (was security/network-egress-
isolation), features/kanban-multi-gateway (was kanban/multi-gateway).
Each page got title/description frontmatter and a sidebar entry; repo-
relative links became site links or GitHub blob URLs; two MDX brace
hazards escaped. Every in-tree pointer (module docstrings, config
comments, the relay conformance test's Path, the monitoring-doc test,
gateway-internals, cron-internals, kanban docs, .dockerignore, AGENTS.md)
now names the new location. `docusaurus build` passes with no unresolved
links on the moved pages.
teknium1