From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: bharata@linux.vnet.ibm.com, kvm@vger.kernel.org,
qemu-devel@nongnu.org,
Sanidhya Kashyap <sanidhya.gatech@gmail.com>,
linux-mm@kvack.org, Andrea Arcangeli <aarcange@redhat.com>,
zhang.zhanghailiang@huawei.com,
Pavel Emelyanov <xemul@parallels.com>,
Hugh Dickins <hughd@google.com>, Mel Gorman <mgorman@suse.de>,
"Huangpeng (Peter)" <peter.huangpeng@huawei.com>,
Andres Lagar-Cavilla <andreslc@google.com>,
"Kirill A. Shutemov" <kirill@shutemov.name>,
Dave Hansen <dave.hansen@intel.com>,
linux-api@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org,
Andy Lutomirski <luto@amacapital.net>,
Johannes Weiner <hannes@cmpxchg.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Peter Feiner <pfeiner@google.com>
Subject: Re: [Qemu-devel] [PATCH 19/23] userfaultfd: activate syscall
Date: Tue, 8 Sep 2015 13:28:26 +0100 [thread overview]
Message-ID: <20150908122826.GJ2246@work-vm> (raw)
In-Reply-To: <1441708821.13127.0.camel@ellerman.id.au>
* Michael Ellerman (mpe@ellerman.id.au) wrote:
> 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?
Hmm; I think we're missing a test-case fix that Andrea made me for a bug I hit on Power
I hit a couple of weeks back. I think that would have been on le.
Dave
> cheers
>
>
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
next prev parent reply other threads:[~2015-09-08 12:28 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-14 17:30 [PATCH 00/23] userfaultfd v4 Andrea Arcangeli
2015-05-14 17:30 ` [PATCH 01/23] userfaultfd: linux/Documentation/vm/userfaultfd.txt Andrea Arcangeli
[not found] ` <1431624680-20153-2-git-send-email-aarcange-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-09-11 8:47 ` Michael Kerrisk (man-pages)
2015-12-04 15:50 ` Michael Kerrisk (man-pages)
[not found] ` <5661B62B.2020409-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-12-04 17:55 ` Andrea Arcangeli
2015-05-14 17:30 ` [PATCH 02/23] userfaultfd: waitqueue: add nr wake parameter to __wake_up_locked_key Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 04/23] userfaultfd: linux/userfaultfd_k.h Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 05/23] userfaultfd: add vm_userfaultfd_ctx to the vm_area_struct Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 06/23] userfaultfd: add VM_UFFD_MISSING and VM_UFFD_WP Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 07/23] userfaultfd: call handle_userfault() for userfaultfd_missing() faults Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 08/23] userfaultfd: teach vma_merge to merge across vma->vm_userfaultfd_ctx Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 09/23] userfaultfd: prevent khugepaged to merge if userfaultfd is armed Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 10/23] userfaultfd: add new syscall to provide memory externalization Andrea Arcangeli
2015-05-14 17:49 ` Linus Torvalds
2015-05-15 16:04 ` Andrea Arcangeli
2015-05-15 18:22 ` Linus Torvalds
[not found] ` <1431624680-20153-11-git-send-email-aarcange-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-06-23 19:00 ` Dave Hansen
[not found] ` <5589ACC3.3060401-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-06-23 21:41 ` Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 11/23] userfaultfd: Rename uffd_api.bits into .features Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 12/23] userfaultfd: Rename uffd_api.bits into .features fixup Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 13/23] userfaultfd: change the read API to return a uffd_msg Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 14/23] userfaultfd: wake pending userfaults Andrea Arcangeli
2015-10-22 12:10 ` Peter Zijlstra
[not found] ` <20151022121056.GB7520-ndre7Fmf5hadTX5a5knrm8zTDFooKrT+cvkQGrU6aU0@public.gmane.org>
2015-10-22 13:20 ` Andrea Arcangeli
2015-10-22 13:38 ` Peter Zijlstra
2015-10-22 14:18 ` Andrea Arcangeli
2015-10-22 15:15 ` Peter Zijlstra
2015-10-22 15:30 ` Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 15/23] userfaultfd: optimize read() and poll() to be O(1) Andrea Arcangeli
[not found] ` <1431624680-20153-1-git-send-email-aarcange-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-05-14 17:31 ` [PATCH 03/23] userfaultfd: uAPI Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 16/23] userfaultfd: allocate the userfaultfd_ctx cacheline aligned Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 17/23] userfaultfd: solve the race between UFFDIO_COPY|ZEROPAGE and read Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 18/23] userfaultfd: buildsystem activation Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 19/23] userfaultfd: activate syscall Andrea Arcangeli
2015-08-11 10:07 ` [Qemu-devel] " Bharata B Rao
2015-08-11 13:48 ` Andrea Arcangeli
[not found] ` <20150811134826.GI4520-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-08-12 5:23 ` Bharata B Rao
[not found] ` <20150812052346.GC4587-xthvdsQ13ZrQT0dZR+AlfA@public.gmane.org>
2015-09-08 6:08 ` Michael Ellerman
[not found] ` <1441692486.14597.17.camel-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>
2015-09-08 6:39 ` Bharata B Rao
[not found] ` <20150908063948.GB678-xthvdsQ13ZrQT0dZR+AlfA@public.gmane.org>
2015-09-08 7:14 ` Michael Ellerman
2015-09-08 10:40 ` Michael Ellerman
2015-09-08 12:28 ` Dr. David Alan Gilbert [this message]
2015-09-08 8:59 ` Dr. David Alan Gilbert
2015-09-08 10:00 ` Bharata B Rao
2015-09-08 12:46 ` Dr. David Alan Gilbert
2015-09-08 13:37 ` Bharata B Rao
2015-09-08 14:13 ` Dr. David Alan Gilbert
2015-05-14 17:31 ` [PATCH 20/23] userfaultfd: UFFDIO_COPY|UFFDIO_ZEROPAGE uAPI Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 21/23] userfaultfd: mcopy_atomic|mfill_zeropage: UFFDIO_COPY|UFFDIO_ZEROPAGE preparation Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 22/23] userfaultfd: avoid mmap_sem read recursion in mcopy_atomic Andrea Arcangeli
2015-05-22 20:18 ` Andrew Morton
2015-05-22 20:48 ` Andrea Arcangeli
2015-05-22 21:18 ` Andrew Morton
2015-05-23 1:04 ` Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 23/23] userfaultfd: UFFDIO_COPY and UFFDIO_ZEROPAGE Andrea Arcangeli
2015-05-18 14:24 ` [PATCH 00/23] userfaultfd v4 Pavel Emelyanov
2015-05-19 21:38 ` Andrew Morton
2015-05-19 21:59 ` Richard Weinberger
2015-05-20 14:17 ` Andrea Arcangeli
2015-05-20 13:23 ` Andrea Arcangeli
2015-05-21 13:11 ` Kirill Smelkov
2015-05-21 15:52 ` Andrea Arcangeli
2015-05-22 16:35 ` Kirill Smelkov
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