R-1192: every guest may swap as much as its RAM (bring-up, RAM resize, once at start) — the measured 8 GB freeze; unreleased

2026-10-21 15:43:18 +02:00
parent 4e1621c650
commit 286a7e3ecf
8 changed files with 206 additions and 1 deletions
@@ -225,7 +225,8 @@ func (s *Server) handleGuestMemoryResize(w http.ResponseWriter, r *http.Request,
 	}

 	// Apply. SetConfig may be synchronous (empty UPID) or return a task to wait on.
-	upid, err := s.mem.SetConfig(r.Context(), vmid, map[string]string{"memory": fmt.Sprintf("%d", target)})
+	// R-1192: the swap moves with the memory (GuestSwapMB) — a grown guest with the old swap cap thrashes the same way.
+	upid, err := s.mem.SetConfig(r.Context(), vmid, map[string]string{"memory": fmt.Sprintf("%d", target), "swap": fmt.Sprintf("%d", GuestSwapMB(target))})
 	if err != nil {
 		s.logger.Error("local-api: guest-memory SetConfig", "vmid", vmid, "target_mb", target, "err", err)
 		writeErr(w, http.StatusBadGateway, "memory resize failed: "+err.Error())