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add an assertion.

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This commit is contained in:
yamt 2006-10-19 09:34:00 +00:00
parent 799bddf8fa
commit 4ba42a7148
1 changed files with 3 additions and 2 deletions
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5
sys/uvm/uvm_bio.c
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@ -1,4 +1,4 @@
/* $NetBSD: uvm_bio.c,v 1.52 2006/10/12 10:14:20 yamt Exp $ */
/* $NetBSD: uvm_bio.c,v 1.53 2006/10/19 09:34:00 yamt Exp $ */
/*
* Copyright (c) 1998 Chuck Silvers.
@ -34,7 +34,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: uvm_bio.c,v 1.52 2006/10/12 10:14:20 yamt Exp $");
__KERNEL_RCSID(0, "$NetBSD: uvm_bio.c,v 1.53 2006/10/19 09:34:00 yamt Exp $");
#include "opt_uvmhist.h"
#include "opt_ubc.h"
@ -247,6 +247,7 @@ ubc_fault(struct uvm_faultinfo *ufi, vaddr_t ign1 __unused,
ubc_offset = va - (vaddr_t)ubc_object.kva;
umap = &ubc_object.umap[ubc_offset >> ubc_winshift];
KASSERT(umap->refcount != 0);
KASSERT((umap->flags & UMAP_PAGES_LOCKED) == 0);
slot_offset = ubc_offset & (ubc_winsize - 1);
/*