git fatal error

["Olivier B." <xen.list@daevel.fr>]

Hi,

I'm a git noob, and when I do my "git pull" on my local (unmodified) 
stable-2.6.32.x branch, I obtain this error :

~/linux/linux-xen-2.6.32.x$ git pull
remote: Counting objects: 948, done.
remote: Compressing objects: 100% (233/233), done.
remote: Total 597 (delta 497), reused 420 (delta 351)
Receiving objects: 100% (597/597), 109.69 KiB, done.
Resolving deltas: 100% (497/497), completed with 118 local objects.
 From git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen
  * [new branch]      xen/blkfront -> origin/xen/blkfront
    dc23f2c..d02659f  xen/dom0/apic-next -> origin/xen/dom0/apic-next
    b5280ed..772440a  xen/dom0/backend/blkback -> 
origin/xen/dom0/backend/blkback
    1ebf91c..7a63455  xen/frontend -> origin/xen/frontend
    cdab7a0..7d80393  xen/next   -> origin/xen/next
  * [new branch]      xen/pvhvm-stefano -> origin/xen/pvhvm-stefano
    d9dee7a..1181ebb  xen/stable -> origin/xen/stable
    d9dee7a..146259c  xen/stable-2.6.32.x -> origin/xen/stable-2.6.32.x
error: Entry 'arch/x86/pci/xen.c' not uptodate. Cannot merge.
fatal: merging of trees 1d02cb6a2c5ba53936870fdf6e8c3e81e41175b4 and 
a4c208d5d3eef9d58493fe09c248dada3159376a failed
Merge with strategy recursive failed.

What is the problem ? And how can I fix it ?

Thanks,
Olivier