I've rototilled the vx(4) driver somewhat and added locking and marked it MPSAFE. Now it just needs testing. :) Please test and let me know how it works. Thanks! http://www.FreeBSD.org/~jhb/patches/vx_locking.patch -- John Baldwin <jhb at FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org