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From: Alan Cox <alc@FreeBSD.org>
To: Perforce Change Reviews <perforce@freebsd.org>
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Subject: PERFORCE change 85753 for review
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http://perforce.freebsd.org/chv.cgi?CH=85753

Change 85753 by alc@alc_home on 2005/10/23 21:32:57

	Assert that the superpage reservation is not broken in vm_page_alloc().

Affected files ...

.. //depot/projects/superpages/src/sys/vm/vm_page.c#6 edit

Differences ...

==== //depot/projects/superpages/src/sys/vm/vm_page.c#6 (text+ko) ====

@@ -816,6 +816,8 @@
 loop:
 	mtx_lock_spin(&vm_page_queue_free_mtx);
 	if (top != NULL) {
+		KASSERT(!top->broken,
+		    ("vm_page_alloc: reservation %p is broken", top));
 		m = &top->first_page[SP_POS(object, pindex, top->level)];
 		KASSERT(m->queue == PQ_NONE,
 		    ("vm_page_alloc: page %p has unexpected queue %d",