Module Name: src
Committed By: ad
Date: Wed Mar 18 18:54:28 UTC 2020
Modified Files:
src/sys/arch/x86/x86: pmap.c
Log Message:
Pacify assertion in a failure path.
Reported-by: syzbot+e666891e2bc5caee1...@syzkaller.appspotmail.com
To generate a diff of this commit:
cvs rdiff -u -r1.376 -r1.377 src/sys/arch/x86/x86/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/x86/x86/pmap.c
diff -u src/sys/arch/x86/x86/pmap.c:1.376 src/sys/arch/x86/x86/pmap.c:1.377
--- src/sys/arch/x86/x86/pmap.c:1.376 Tue Mar 17 22:38:14 2020
+++ src/sys/arch/x86/x86/pmap.c Wed Mar 18 18:54:28 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: pmap.c,v 1.376 2020/03/17 22:38:14 ad Exp $ */
+/* $NetBSD: pmap.c,v 1.377 2020/03/18 18:54:28 ad Exp $ */
/*
* Copyright (c) 2008, 2010, 2016, 2017, 2019, 2020 The NetBSD Foundation, Inc.
@@ -130,7 +130,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.376 2020/03/17 22:38:14 ad Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.377 2020/03/18 18:54:28 ad Exp $");
#include "opt_user_ldt.h"
#include "opt_lockdebug.h"
@@ -2450,6 +2450,7 @@ pmap_unget_ptp(struct pmap *pmap, struct
continue;
}
KASSERT(pt->pg[i]->wire_count == 0);
+ pt->pg[i]->wire_count = 1;
PMAP_CHECK_PP(VM_PAGE_TO_PP(pt->pg[i]));
pmap_freepage(pmap, pt->pg[i], i - 1);
}
