Module Name:    src
Committed By:   martin
Date:           Sun Jun  7 12:21:36 UTC 2020

Modified Files:
        src/sys/arch/powerpc/oea [netbsd-9]: pmap.c

Log Message:
Pull up following revision(s) (requested by rin in ticket #938):

        sys/arch/powerpc/oea/pmap.c: revision 1.96

Stop returning while PMAP_LOCK() (= KERNEL_LOCK(1, NULL)) is held.
Kernel freeze with heavy load is significantly mitigated (fixed?),
in which I could not even enter DDB from console.

XXX
There is still inconsistency in usage of two PVO pools.
I will send-pr later.

XXX
pullup to netbsd-[987]


To generate a diff of this commit:
cvs rdiff -u -r1.95 -r1.95.8.1 src/sys/arch/powerpc/oea/pmap.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/arch/powerpc/oea/pmap.c
diff -u src/sys/arch/powerpc/oea/pmap.c:1.95 src/sys/arch/powerpc/oea/pmap.c:1.95.8.1
--- src/sys/arch/powerpc/oea/pmap.c:1.95	Sat Jan 27 23:07:36 2018
+++ src/sys/arch/powerpc/oea/pmap.c	Sun Jun  7 12:21:35 2020
@@ -1,4 +1,4 @@
-/*	$NetBSD: pmap.c,v 1.95 2018/01/27 23:07:36 chs Exp $	*/
+/*	$NetBSD: pmap.c,v 1.95.8.1 2020/06/07 12:21:35 martin Exp $	*/
 /*-
  * Copyright (c) 2001 The NetBSD Foundation, Inc.
  * All rights reserved.
@@ -63,7 +63,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.95 2018/01/27 23:07:36 chs Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.95.8.1 2020/06/07 12:21:35 martin Exp $");
 
 #define	PMAP_NOOPNAMES
 
@@ -991,6 +991,7 @@ pmap_pte_spill(struct pmap *pm, vaddr_t 
 			}
 			source_pvo = pvo;
 			if (exec && !PVO_EXECUTABLE_P(source_pvo)) {
+				PMAP_UNLOCK();
 				return 0;
 			}
 			if (victim_pvo != NULL)
@@ -2162,6 +2163,7 @@ pmap_extract(pmap_t pm, vaddr_t va, padd
 				return true;
 			}
 		}
+		PMAP_UNLOCK();
 		return false;
 #elif defined (PMAP_OEA64_BRIDGE)
 	if (va >= SEGMENT_LENGTH)

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