From b8a66215076d23291ca8bae9dca283d2128885e7 Mon Sep 17 00:00:00 2001
From: Ingo Weinhold <ingo_weinhold@gmx.de>
Date: Fri, 4 Jul 2008 15:46:27 +0000
Subject: [PATCH] fault_find_page(): When the source of the top cache is busy,
 we may find our own dummy page. This is equivalent to not finding a page at
 all. Fixes #2471.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26248 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/system/kernel/vm/vm.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/system/kernel/vm/vm.cpp b/src/system/kernel/vm/vm.cpp
index 3580fc5434..e5837d2f8f 100644
--- a/src/system/kernel/vm/vm.cpp
+++ b/src/system/kernel/vm/vm.cpp
@@ -4321,6 +4321,9 @@ fault_find_page(vm_translation_map *map, vm_cache *topCache,
 		cache = nextCache;
 	}
 
+	if (page == &dummyPage)
+		page = NULL;
+
 	if (page == NULL) {
 		// there was no adequate page, determine the cache for a clean one
 		if (cache == NULL) {