D17827.diff
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	Index: head/sys/kern/sys_pipe.c
	===================================================================
	--- head/sys/kern/sys_pipe.c
	+++ head/sys/kern/sys_pipe.c
	@@ -509,9 +509,8 @@
	size = round_page(size);
	buffer = (caddr_t) vm_map_min(pipe_map);

	- error = vm_map_find(pipe_map, NULL, 0,
	- (vm_offset_t *) &buffer, size, 0, VMFS_ANY_SPACE,
	- VM_PROT_ALL, VM_PROT_ALL, 0);
	+ error = vm_map_find(pipe_map, NULL, 0, (vm_offset_t *)&buffer, size, 0,
	+ VMFS_ANY_SPACE, VM_PROT_RW, VM_PROT_RW, 0);
	if (error != KERN_SUCCESS) {
	if ((cpipe->pipe_buffer.buffer == NULL) &&
	(size > SMALL_PIPE_SIZE)) {
	Index: head/sys/vm/vm_kern.c
	===================================================================
	--- head/sys/vm/vm_kern.c
	+++ head/sys/vm/vm_kern.c
	@@ -650,8 +650,8 @@
	map->needs_wakeup = TRUE;
	vm_map_unlock_and_wait(map, 0);
	}
	- vm_map_insert(map, NULL, 0, addr, addr + size, VM_PROT_ALL,
	- VM_PROT_ALL, MAP_ACC_CHARGED);
	+ vm_map_insert(map, NULL, 0, addr, addr + size, VM_PROT_RW, VM_PROT_RW,
	+ MAP_ACC_CHARGED);
	vm_map_unlock(map);
	return (addr);
	}