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-rw-r--r--src/backend/port/sysv_sema.c8
-rw-r--r--src/bin/initdb/initdb.c2
2 files changed, 8 insertions, 2 deletions
diff --git a/src/backend/port/sysv_sema.c b/src/backend/port/sysv_sema.c
index 5b88a92bc95..68835723b90 100644
--- a/src/backend/port/sysv_sema.c
+++ b/src/backend/port/sysv_sema.c
@@ -50,8 +50,14 @@ typedef int IpcSemaphoreId; /* semaphore ID returned by semget(2) */
* we allocate. It must be *less than* your kernel's SEMMSL (max semaphores
* per set) parameter, which is often around 25. (Less than, because we
* allocate one extra sema in each set for identification purposes.)
+ *
+ * The present value of 19 is chosen with one eye on NetBSD/OpenBSD's default
+ * SEMMNS setting of 60. Remembering the extra sema per set, this lets us
+ * allocate three sets with 57 useful semaphores before exceeding that, which
+ * is enough to run our core regression tests. Users of those systems will
+ * still want to raise SEMMNS for any sort of production work, though.
*/
-#define SEMAS_PER_SET 16
+#define SEMAS_PER_SET 19
#define IPCProtection (0600) /* access/modify by user only */
diff --git a/src/bin/initdb/initdb.c b/src/bin/initdb/initdb.c
index 9a91830783e..49e8efd2125 100644
--- a/src/bin/initdb/initdb.c
+++ b/src/bin/initdb/initdb.c
@@ -1119,7 +1119,7 @@ test_config_settings(void)
#define MIN_BUFS_FOR_CONNS(nconns) ((nconns) * 10)
static const int trial_conns[] = {
- 100, 50, 40, 30, 20
+ 100, 50, 40, 30, 25
};
static const int trial_bufs[] = {
16384, 8192, 4096, 3584, 3072, 2560, 2048, 1536,