# Re: \[Qemu-devel\] \[PATCH 19/23\] userfaultfd: activate syscall

- From: Michael Ellerman \<mpe@ellerman.id.au\>
- Date: 2015-09-08 10:40:30 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2015/09/4571460
- Thread: https://ratatoskr.run/kvm/2015/05/4493774/t.md

```text
On Tue, 2015-09-08 at 17:14 +1000, Michael Ellerman wrote:
> On Tue, 2015-09-08 at 12:09 +0530, Bharata B Rao wrote:
> > On Tue, Sep 08, 2015 at 04:08:06PM +1000, Michael Ellerman wrote:
> > > Hmm, not for me. See below.
> > > 
> > > What setup were you testing on Bharata?
> > 
> > I was on commit a94572f5799dd of userfault21 branch in Andrea's tree
> > git://git.kernel.org/pub/scm/linux/kernel/git/andrea/aa.git
> > 
> > #uname -a
> > Linux 4.1.0-rc8+ #1 SMP Tue Aug 11 11:33:50 IST 2015 ppc64le ppc64le ppc64le GNU/Linux
> > 
> > In fact I had successfully done postcopy migration of sPAPR guest with
> > this setup.
> 
> OK, do you mind testing mainline with the same setup to see if the selftest
> passes.

Ah, I just tried it on big endian and it works. So it seems to not work on
little endian for some reason, /probably/ a test case bug?

cheers
```