Hi,

now my UML/s390 works based on 2.6.11-bk8 + incrementals.
But I had to apply some patches:

- s390-atomic_sub_return
   Patch adds the missing function atomic_sub_return() in
   s390's atomic.h.

- check-restart-skipping
   This is the revised version of the patch, which now should
   compile on all hosts.

- shift-MM_COPY_SEGMENTS
   fix-tt-TOP_ADDR
   fix-ff-USR1-handlers
   skip-arch_align_stack
   These modify UML to fit for UML/s390 needs.

- move-sys_call_table_entries
   Some entries not allowed for s390 again were moved to sys_call_table.c

- fix-tt-exit
   This fixes the "write of switch_pipe failed, err = 9" panic, that
   a few times happened on i386, when we tried different ways to kill
   ptraced processes.
   On my very slow s390 host I could reproduce the problem several times
   and found the reason for it (after a few days of work).

All these patches and the commented series are in the attached tarball.

		Bodo