Comment 44 for bug 378240

@User Virtual
Make a couple of checks :-
root@ServerLDX:/usr/src/build/400/xen-4.0.1rc1/debian/patches# ls -l
total 36
-rw-r--r-- 1 root root 476 2010-06-13 21:42 fix-blktap2.diff
-rw-r--r-- 1 root root 845 2010-06-13 21:42 fix-pvgrub.diff
-rw-r--r-- 1 root root 651 2010-06-13 21:42 grub2-fix.patch
-rw-r--r-- 1 root root 1702 2010-06-13 21:42 init.d_xen.diff
-rw-r--r-- 1 root root 1701 2010-06-13 21:42 init.d_xen.diff.ORG
-rw-r--r-- 1 root root 778 2010-06-13 21:42 misc-docs.diff
-rw-r--r-- 1 root root 111 2010-06-13 21:42 series
-rw-r--r-- 1 root root 1715 2010-06-13 21:42 use-python-2.6.diff
-rw-r--r-- 1 root root 507 2010-06-13 21:42 xen-ubuntu-fix-resync.diff

1. Are you attempting to apply second time grub2-fix.patch , which is already a CS in 4.0.1-rc1 ?
2. Are you attempting to load xen-evtchn module at xend start init.d_xen.diff ?

+# Load the xen-evtchn module
+test "x$1" = xstart && \
+if ! grep "^xen[-_]evtchn " /proc/modules; then
+ modprobe -v xen-evtchn
+ if ! grep "^xen[-_]evtchn " /proc/modules; then
+ echo "Error: Load module xen-evtchn failed. Exit."
+ exit 1
+ fi
+fi
+
It might be just hard linked to pvops kernel.
I am not a debian person, could you ,please, explain what's going on here ?