2026-07-31 13:48:34 +00:00
1 changed files with 7 additions and 5 deletions
@@ -533,11 +533,13 @@ cmd_run() {
    # keeps the single-instance flock (fd 9, taken at exec 9> above) alive after
    # the detector parent dies. The lock is non-blocking (`flock -n`, above), so
    # for as long as that sleep survives a replacement instance is REFUSED and
-    # exits rather than queueing. The window is BOUNDED by one poll interval
-    # (WAKE_DETECTOR_INTERVAL, default 30s): when the orphaned sleep exits the
-    # last copy of the fd closes and the next start succeeds. The cost is a
-    # restart window in which every supervisor retry fails — not a lock that
-    # nothing can ever reclaim.
+    # exits rather than queueing. This particular hold is BOUNDED by one poll
+    # interval (WAKE_DETECTOR_INTERVAL, default 30s): when the orphaned sleep
+    # exits its copy of fd 9 closes, ending this bounded sleep-child hold. It
+    # does NOT follow that the next start succeeds — other inheritors of fd 9
+    # (the M1 adapter, M2 sink grandchildren) are outside this patch's scope and
+    # can keep holding the flock. The cost this removes is a restart window in
+    # which every supervisor retry fails on the sleep child's account.
    # `9>&-` closes ONLY the child's copy — the parent's lock is unaffected.
    sleep "$interval" 9>&-
  done