From 594419e74ad495aa116e08e306416b3a090513c5 Mon Sep 17 00:00:00 2001
From: Magnus Hagander <magnus@hagander.net>
Date: Thu, 16 Sep 2010 20:37:13 +0000
Subject: [PATCH] Treat exit code 128 (ERROR_WAIT_NO_CHILDREN) as non-fatal on
 Win32, since it can happen when a process fails to start when the system is
 under high load.

Per several bug reports and many peoples investigation.

Back-patch to 8.4, which is as far back as the "deadman-switch"
for shared memory access exists.
---
 src/backend/postmaster/postmaster.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/backend/postmaster/postmaster.c b/src/backend/postmaster/postmaster.c
index 7d48bb2545..b0225a8c67 100644
--- a/src/backend/postmaster/postmaster.c
+++ b/src/backend/postmaster/postmaster.c
@@ -37,7 +37,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.615 2010/07/20 00:47:52 rhaas Exp $
+ *	  $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.616 2010/09/16 20:37:13 mha Exp $
  *
  * NOTES
  *
@@ -2588,6 +2588,19 @@ CleanupBackend(int pid,
 	 * assume everything is all right and proceed to remove the backend from
 	 * the active backend list.
 	 */
+#ifdef WIN32
+	/*
+	 * On win32, also treat ERROR_WAIT_NO_CHILDREN (128) as nonfatal
+	 * case, since that sometimes happens under load when the process fails
+	 * to start properly (long before it starts using shared memory).
+	 */
+	if (exitstatus == ERROR_WAIT_NO_CHILDREN)
+	{
+		LogChildExit(LOG, _("server process"), pid, exitstatus);
+		exitstatus = 0;
+	}
+#endif
+
 	if (!EXIT_STATUS_0(exitstatus) && !EXIT_STATUS_1(exitstatus))
 	{
 		HandleChildCrash(pid, exitstatus, _("server process"));