Kernel 2.6.9-rc3-mm3 has a bug in function sys32_io_setup in file
arch/x86_64/ia32/sys_ia32.c.  Local variable ctx64 is not initiated before
sys32_io_setup calls sys_io_setup.  If ctx64 is not zero, and sys_io_setup
will return -EINVAL.  Generic function compat_sys_io_setup has not the bug.

Here is the patch against 2.6.9-rc3-mm3. Just use compat_sys_io_setup to
replace sys32_io_setup.
Signed-off-by: Zhang Yanmin <yanmin.zhang@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>