FreeBSD build kernel crash

# svn up /usr/src
# cd /usr/src
# rm -rf /usr/obj
# make clean
# make -j2 buildworld
# make -j2 kernel KERNCONF=<machine name>

< ... >

mkdep -f .depend -a  -nostdinc -DXENHVM -DMODXENHVM -D_KERNEL -DKLD_MODULE -DHAVE_KERNEL_OPTION_HEADERS -I. -I@ -I@/contrib/altq -I/usr/obj/usr/src/sys/ARIES -std=iso9899:1999  /usr/src/sys/modules/xenhvm/../../xen///xenhvm_mod.c /usr/src/sys/modules/xenhvm/../../dev/xen//balloon/balloon.c /usr/src/sys/modules/xenhvm/../../dev/xen//blkfront/blkfront.c /usr/src/sys/modules/xenhvm/../../dev/xen//blkback/blkback.c /usr/src/sys/modules/xenhvm/../../dev/xen//control/control.c /usr/src/sys/modules/xenhvm/../../dev/xen//netback/netback.c /usr/src/sys/modules/xenhvm/../../dev/xen//netfront/netfront.c /usr/src/sys/modules/xenhvm/../../dev/xen//xenpci/xenpci.c /usr/src/sys/modules/xenhvm/../../dev/xen//xenpci/evtchn.c /usr/src/sys/modules/xenhvm/../../xen///gnttab.c /usr/src/sys/modules/xenhvm/../../xen///features.c /usr/src/sys/modules/xenhvm/../../xen//evtchn/evtchn_dev.c /usr/src/sys/modules/xenhvm/../../xen//xenbus/xenbus.c /usr/src/sys/modules/xenhvm/../../xen//xenbus/xenbusb.c /usr/src/sys/modules/xenhvm/../../xen//xenbus/xenbusb_front.c /usr/src/sys/modules/xenhvm/../../xen//xenbus/xenbusb_back.c xenbus_if.c xenbusb_if.c /usr/src/sys/modules/xenhvm/../../xen//xenstore/xenstore.c /usr/src/sys/modules/xenhvm/../../xen//xenstore/xenstore_dev.c
In file included from @/xen/xenstore/xenstorevar.h:38,
  from /usr/src/sys/modules/xenhvm/../../dev/xen//balloon/balloon.c:47:
@/sys/bus.h:585:23: error: device_if.h: No such file or directory
@/sys/bus.h:586:20: error: bus_if.h: No such file or directory
In file included from /usr/src/sys/modules/xenhvm/../../dev/xen//blkfront/blkfront.c:41:
@/sys/bus.h:585:23: error: device_if.h: No such file or directory
@/sys/bus.h:586:20: error: bus_if.h: No such file or directory
In file included from /usr/src/sys/modules/xenhvm/../../dev/xen//blkback/blkback.c:51:
@/sys/bus.h:585:23: error: device_if.h: No such file or directory
@/sys/bus.h:586:20: error: bus_if.h: No such file or directory
In file included from /usr/src/sys/modules/xenhvm/../../dev/xen//blkback/blkback.c:64:
@/sys/vnode.h:568:22: error: vnode_if.h: No such file or directory
In file included from /usr/src/sys/modules/xenhvm/../../dev/xen//control/control.c:107:
@/sys/bus.h:585:23: error: device_if.h: No such file or directory
@/sys/bus.h:586:20: error: bus_if.h: No such file or directory
In file included from /usr/src/sys/modules/xenhvm/../../dev/xen//control/control.c:121:
@/sys/vnode.h:568:22: error: vnode_if.h: No such file or directory
In file included from /usr/src/sys/modules/xenhvm/../../dev/xen//netback/netback.c:52:
@/sys/bus.h:585:23: error: device_if.h: No such file or directory
@/sys/bus.h:586:20: error: bus_if.h: No such file or directory
In file included from /usr/src/sys/modules/xenhvm/../../dev/xen//netfront/netfront.c:74:
@/sys/bus.h:585:23: error: device_if.h: No such file or directory
@/sys/bus.h:586:20: error: bus_if.h: No such file or directory
In file included from /usr/src/sys/modules/xenhvm/../../dev/xen//xenpci/xenpci.c:31:
@/sys/bus.h:585:23: error: device_if.h: No such file or directory
@/sys/bus.h:586:20: error: bus_if.h: No such file or directory
In file included from /usr/src/sys/modules/xenhvm/../../dev/xen//xenpci/xenpci.c:53:
@/dev/pci/pcivar.h:220:20: error: pci_if.h: No such file or directory
In file included from /usr/src/sys/modules/xenhvm/../../dev/xen//xenpci/evtchn.c:36:
@/sys/bus.h:585:23: error: device_if.h: No such file or directory
@/sys/bus.h:586:20: error: bus_if.h: No such file or directory
In file included from /usr/src/sys/modules/xenhvm/../../xen///gnttab.c:21:
@/sys/bus.h:585:23: error: device_if.h: No such file or directory
@/sys/bus.h:586:20: error: bus_if.h: No such file or directory
In file included from /usr/src/sys/modules/xenhvm/../../xen//evtchn/evtchn_dev.c:15:
@/sys/bus.h:585:23: error: device_if.h: No such file or directory
@/sys/bus.h:586:20: error: bus_if.h: No such file or directory
In file included from @/xen/xenbus/xenbusvar.h:40,
  from /usr/src/sys/modules/xenhvm/../../xen//xenbus/xenbus.c:57:
@/sys/bus.h:585:23: error: device_if.h: No such file or directory
@/sys/bus.h:586:20: error: bus_if.h: No such file or directory
In file included from /usr/src/sys/modules/xenhvm/../../xen//xenbus/xenbusb.c:58:
@/sys/bus.h:585:23: error: device_if.h: No such file or directory
@/sys/bus.h:586:20: error: bus_if.h: No such file or directory
In file included from /usr/src/sys/modules/xenhvm/../../xen//xenbus/xenbusb_front.c:42:
@/sys/bus.h:585:23: error: device_if.h: No such file or directory
@/sys/bus.h:586:20: error: bus_if.h: No such file or directory
In file included from /usr/src/sys/modules/xenhvm/../../xen//xenbus/xenbusb_back.c:42:
@/sys/bus.h:585:23: error: device_if.h: No such file or directory
@/sys/bus.h:586:20: error: bus_if.h: No such file or directory
In file included from xenbus_if.c:17:
@/sys/bus.h:585:23: error: device_if.h: No such file or directory
@/sys/bus.h:586:20: error: bus_if.h: No such file or directory
In file included from xenbusb_if.c:17:
@/sys/bus.h:585:23: error: device_if.h: No such file or directory
@/sys/bus.h:586:20: error: bus_if.h: No such file or directory
In file included from /usr/src/sys/modules/xenhvm/../../xen//xenstore/xenstore.c:36:
@/sys/bus.h:585:23: error: device_if.h: No such file or directory
@/sys/bus.h:586:20: error: bus_if.h: No such file or directory
In file included from @/xen/xenstore/xenstorevar.h:38,
  from /usr/src/sys/modules/xenhvm/../../xen//xenstore/xenstore_dev.c:50:
@/sys/bus.h:585:23: error: device_if.h: No such file or directory
@/sys/bus.h:586:20: error: bus_if.h: No such file or directory
mkdep: compile failed
*** [.depend] Error code 1
1 error
*** [depend] Error code 2
1 error
*** [modules-depend] Error code 2
1 error
*** [buildkernel] Error code 2
1 error
*** [buildkernel] Error code 2
1 error
#