The per-Codex-home process lock was released only by the child's 'close'
event. 'close' fires when the child AND every process that inherited its
stdio have exited, so a grandchild that outlives codex (an MCP server, a
helper, an `sh -c` wrapper) keeps the pipe open and 'close' never arrives.
killProcessTree only SIGKILLs the direct child on POSIX, so Stop and the
60s generation timeout both leave the lock held. Every later AI commit
message, PR field, branch name, and quota probe for that home then queued
forever with no error and no recovery until the app restarted.
Release the hold on 'exit' as well as 'close': once the codex process
itself is gone it can no longer rotate that home's auth.json, which is the
race the lock exists to prevent, so waiting on descendants bought nothing.
As a backstop for a child that never reports exit at all (a kill that does
not land), bound the hold: while another run is queued behind it, a hold
that outlives CODEX_HOME_PROCESS_LOCK_MAX_HOLD_MS releases the queue. The
cap is armed only when someone is waiting and only counts time the entry
actually holds the lock, so uncontended runs arm no timer and queueing
behind a slow predecessor never shortens a run's own budget.
* fix(codex): make quota probes credential-safe
Codex OAuth uses rotating refresh tokens, and Orca's quota probes spawned
real codex app-server processes inside live credential homes, hard-killed
them at a 10s deadline (cold starts run 10-25s), re-probed every inactive
account on each switch, and deselected accounts on torn auth.json reads.
- arm the RPC read deadline only after initialize responds (30s/40s boot
budget), and terminate probes via stdin EOF + SIGTERM with a bounded
drain before any hard kill; resolve only once the child exits
- serialize Orca-spawned codex processes per credential home (probe vs
probe, probe vs commit-message/PR-fields/branch-name/model-discovery)
- keep the inactive-probe debounce across account switches and stagger
inactive probes; the active account still refreshes immediately
- grade credential reads (present/missing/unreadable/no-credential) and
require absence to outlive a grace window before deselecting
* fix(codex): close remaining credential races
* fix(codex): keep failed probes under home lock
* fix(codex): observe probe pipe failures
* fix(codex): await Windows generation tree kills
* fix(codex): preserve incomplete shared credentials
Brennan Benson
OrcaWin