Failing updates

[Margaret Doll]

I have eleven  systems running RedHat.  Nine of them use up2date; I am  
having no problems with them.

Two of them don't have up2date; I use "yum update" on them.  These two  
systems are running

  2.6.18-92.el5
2.6.18-53.el5xen  (with a reboot, this system will be at the same  
level as the above system)

I am having problems with xen-libraries

more update-prob
  yum update
Loading "rhnplugin" plugin
rhel-i386-server-5        100% |=========================| 1.4 kB     
00:00
Setting up Update Process
Resolving Dependencies
--> Running transaction check
---> Package xen-libs.i386 0:3.0.3-64.el5_2.1 set to be updated
---> Package libhugetlbfs.i386 0:1.2-5.el5 set to be updated
--> Processing Dependency: xen-libs = 3.0.3-41.el5_1.5 for package: xen
--> Finished Dependency Resolution
Error: Missing Dependency: xen-libs = 3.0.3-41.el5_1.5 is needed by  
packag
e xen


and with libhugetlbfs

yum update libhugetlbfs
Loading "security" plugin
Loading "rhnplugin" plugin
rhel-x86_64-server-5      100% |=========================| 1.4 kB     
00:00
Skipping security plugin, no data
Setting up Update Process
Resolving Dependencies
Skipping security plugin, no data
--> Running transaction check
---> Package libhugetlbfs.x86_64 0:1.2-5.el5 set to be updated
--> Processing Conflict: libhugetlbfs conflicts libhugetlbfs-lib < 1.2
--> Finished Dependency Resolution
Error: libhugetlbfs conflicts with libhugetlbfs-lib < 1.2

Is there a way to fix the problem?

Thanks