We have to use pmap_extract() here. pmap_kextract() will choke on a missing

page directory and the user memory hasn't been touched yet.

diff --git a/sys/kern/kern_xio.c b/sys/kern/kern_xio.c
index c7a9087..2b51857 100644 (file)
--- a/sys/kern/kern_xio.c
+++ b/sys/kern/kern_xio.c
@@ -31,7 +31,7 @@
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  * 
- * $DragonFly: src/sys/kern/kern_xio.c,v 1.10 2005/06/06 15:02:28 dillon Exp $
+ * $DragonFly: src/sys/kern/kern_xio.c,v 1.11 2006/05/07 00:23:08 dillon Exp $
  */
 /*
  * Kernel XIO interface.  An initialized XIO is basically a collection of
@@ -115,7 +115,7 @@ xio_init_ubuf(xio_t xio, void *ubase, size_t ubytes, int flags)
        for (i = 0; n && i < XIO_INTERNAL_PAGES; ++i) {
            if (vm_fault_quick((caddr_t)addr, vmprot) < 0)
                break;
-           if ((paddr = pmap_kextract(addr)) == 0)
+           if ((paddr = pmap_extract(&curproc->p_vmspace->vm_pmap, addr)) == 0)
                break;
            crit_enter();
            m = PHYS_TO_VM_PAGE(paddr);