D45119.diff
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D45119.diff
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	diff --git a/sys/fs/tmpfs/tmpfs_subr.c b/sys/fs/tmpfs/tmpfs_subr.c
	--- a/sys/fs/tmpfs/tmpfs_subr.c
	+++ b/sys/fs/tmpfs/tmpfs_subr.c
	@@ -183,6 +183,9 @@
	KASSERT((object->flags & OBJ_ANON) == 0,
	("%s: object %p with OBJ_ANON", __func__, object));
	old = object->un_pager.swp.writemappings;
	+ KASSERT(old >= (vm_ooffset_t)end - start,
	+ ("tmpfs obj %p writecount %jx dec %jx", object, (uintmax_t)old,
	+ (uintmax_t)((vm_ooffset_t)end - start)));
	object->un_pager.swp.writemappings -= (vm_ooffset_t)end - start;
	new = object->un_pager.swp.writemappings;
	tmpfs_pager_writecount_recalc(object, old, new);
	diff --git a/sys/vm/swap_pager.c b/sys/vm/swap_pager.c
	--- a/sys/vm/swap_pager.c
	+++ b/sys/vm/swap_pager.c
	@@ -3158,6 +3158,10 @@
	VM_OBJECT_WLOCK(object);
	KASSERT((object->flags & OBJ_ANON) == 0,
	("Splittable object with writecount"));
	+ KASSERT(object->un_pager.swp.writemappings >= (vm_ooffset_t)end - start,
	+ ("swap obj %p writecount %jx dec %jx", object,
	+ (uintmax_t)object->un_pager.swp.writemappings,
	+ (uintmax_t)((vm_ooffset_t)end - start)));
	object->un_pager.swp.writemappings -= (vm_ooffset_t)end - start;
	VM_OBJECT_WUNLOCK(object);
	}