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-rw-r--r--sys/vm/vm_map.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/vm/vm_map.c b/sys/vm/vm_map.c
index d4a7fe6..b5897ed 100644
--- a/sys/vm/vm_map.c
+++ b/sys/vm/vm_map.c
@@ -2789,7 +2789,8 @@ vmspace_exec(struct proc *p, vm_offset_t minuser, vm_offset_t maxuser)
GIANT_REQUIRED;
newvmspace = vmspace_alloc(minuser, maxuser);
bcopy(&oldvmspace->vm_startcopy, &newvmspace->vm_startcopy,
- (caddr_t) (newvmspace + 1) - (caddr_t) &newvmspace->vm_startcopy);
+ (caddr_t) &newvmspace->vm_endcopy -
+ (caddr_t) &newvmspace->vm_startcopy);
/*
* This code is written like this for prototype purposes. The
* goal is to avoid running down the vmspace here, but let the
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