From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Sun, 21 Dec 2003 00:33:33 +0000 (+0000)
Subject: The recent DUMMY_PROCS patch broke accounting for the number of semaphores
X-Git-Tag: REL8_0_0BETA1~1473
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=772d0f9345adc32c401ec9098083a4ffc0ff4603;p=postgresql

The recent DUMMY_PROCS patch broke accounting for the number of semaphores
needed.  This caused us to fail all the time on Darwin, and we'd fail for
some values of maxBackends on SysV-sema platforms, too.
---

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index a4bab87e24..a0256fb2aa 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/storage/lmgr/proc.c,v 1.141 2003/12/20 17:31:21 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/storage/lmgr/proc.c,v 1.142 2003/12/21 00:33:33 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -95,8 +95,8 @@ static bool CheckStatementTimeout(void);
 int
 ProcGlobalSemas(int maxBackends)
 {
-	/* We need a sema per backend, plus one for the dummy process. */
-	return maxBackends + 1;
+	/* We need a sema per backend, plus one for each dummy process. */
+	return maxBackends + NUM_DUMMY_PROCS;
 }
 
 /*