From: Peter Zijlstra <peterz@infradead.org>
To: Andrea Arcangeli <aarcange@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
qemu-devel@nongnu.org, kvm@vger.kernel.org,
linux-api@vger.kernel.org, Pavel Emelyanov <xemul@parallels.com>,
Sanidhya Kashyap <sanidhya.gatech@gmail.com>,
zhang.zhanghailiang@huawei.com,
Linus Torvalds <torvalds@linux-foundation.org>,
"Kirill A. Shutemov" <kirill@shutemov.name>,
Andres Lagar-Cavilla <andreslc@google.com>,
Dave Hansen <dave.hansen@intel.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Rik van Riel <riel@redhat.com>, Mel Gorman <mgorman@suse.de>,
Andy Lutomirski <luto@amacapital.net>,
Hugh Dickins <hughd@google.com>,
Peter Feiner <pfeiner@google.com>,
"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
Johannes Weiner <hannes@cmpxchg.org>,
"Huangpeng (Peter)" <peter.huangpeng@huawei.com>
Subject: Re: [PATCH 14/23] userfaultfd: wake pending userfaults
Date: Thu, 22 Oct 2015 17:15:09 +0200 [thread overview]
Message-ID: <20151022151509.GO3604@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20151022141831.GA1331@redhat.com>
On Thu, Oct 22, 2015 at 04:18:31PM +0200, Andrea Arcangeli wrote:
> The risk of memory corruption is still zero no matter what happens
> here, in the extremely rare case the app will get a SIGBUS or a
That might still upset people, SIGBUS isn't something an app can really
recover from.
> I'm not exactly sure why we allow VM_FAULT_RETRY only once currently
> so I'm tempted to drop FAULT_FLAG_TRIED entirely.
I think to ensure we make forward progress.
> I've no real preference on how to tweak the page fault code to be able
> to return VM_FAULT_RETRY indefinitely and I would aim for the smallest
> change possible, so if you've suggestions now it's good time.
Indefinitely is such a long time, we should try and finish
computation before the computer dies etc. :-)
Yes, yes.. I know, extremely unlikely etc. Still guarantees are good.
In any case, I'm not really too bothered how you fix it, just figured
I'd let you know.
WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: Andrea Arcangeli <aarcange@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
qemu-devel@nongnu.org, kvm@vger.kernel.org,
linux-api@vger.kernel.org, Pavel Emelyanov <xemul@parallels.com>,
Sanidhya Kashyap <sanidhya.gatech@gmail.com>,
zhang.zhanghailiang@huawei.com,
Linus Torvalds <torvalds@linux-foundation.org>,
"Kirill A. Shutemov" <kirill@shutemov.name>,
Andres Lagar-Cavilla <andreslc@google.com>,
Dave Hansen <dave.hansen@intel.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Rik van Riel <riel@redhat.com>, Mel Gorman <mgorman@suse.de>,
Andy Lutomirski <luto@amacapital.net>,
Hugh Dickins <hughd@google.com>,
Peter Feiner <pfeiner@google.com>,
"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
Johannes Weiner <hannes@cmpxchg.org>,
"Huangpeng (Peter)" <peter.huangpeng@huawei.com>
Subject: Re: [PATCH 14/23] userfaultfd: wake pending userfaults
Date: Thu, 22 Oct 2015 17:15:09 +0200 [thread overview]
Message-ID: <20151022151509.GO3604@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20151022141831.GA1331@redhat.com>
On Thu, Oct 22, 2015 at 04:18:31PM +0200, Andrea Arcangeli wrote:
> The risk of memory corruption is still zero no matter what happens
> here, in the extremely rare case the app will get a SIGBUS or a
That might still upset people, SIGBUS isn't something an app can really
recover from.
> I'm not exactly sure why we allow VM_FAULT_RETRY only once currently
> so I'm tempted to drop FAULT_FLAG_TRIED entirely.
I think to ensure we make forward progress.
> I've no real preference on how to tweak the page fault code to be able
> to return VM_FAULT_RETRY indefinitely and I would aim for the smallest
> change possible, so if you've suggestions now it's good time.
Indefinitely is such a long time, we should try and finish
computation before the computer dies etc. :-)
Yes, yes.. I know, extremely unlikely etc. Still guarantees are good.
In any case, I'm not really too bothered how you fix it, just figured
I'd let you know.
--
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see: http://www.linux-mm.org/ .
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WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: Andrea Arcangeli <aarcange@redhat.com>
Cc: kvm@vger.kernel.org, qemu-devel@nongnu.org,
Sanidhya Kashyap <sanidhya.gatech@gmail.com>,
Dave Hansen <dave.hansen@intel.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>,
"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
Andres Lagar-Cavilla <andreslc@google.com>,
"Kirill A. Shutemov" <kirill@shutemov.name>,
linux-mm@kvack.org, linux-api@vger.kernel.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 14/23] userfaultfd: wake pending userfaults
Date: Thu, 22 Oct 2015 17:15:09 +0200 [thread overview]
Message-ID: <20151022151509.GO3604@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20151022141831.GA1331@redhat.com>
On Thu, Oct 22, 2015 at 04:18:31PM +0200, Andrea Arcangeli wrote:
> The risk of memory corruption is still zero no matter what happens
> here, in the extremely rare case the app will get a SIGBUS or a
That might still upset people, SIGBUS isn't something an app can really
recover from.
> I'm not exactly sure why we allow VM_FAULT_RETRY only once currently
> so I'm tempted to drop FAULT_FLAG_TRIED entirely.
I think to ensure we make forward progress.
> I've no real preference on how to tweak the page fault code to be able
> to return VM_FAULT_RETRY indefinitely and I would aim for the smallest
> change possible, so if you've suggestions now it's good time.
Indefinitely is such a long time, we should try and finish
computation before the computer dies etc. :-)
Yes, yes.. I know, extremely unlikely etc. Still guarantees are good.
In any case, I'm not really too bothered how you fix it, just figured
I'd let you know.
next prev parent reply other threads:[~2015-10-22 15:15 UTC|newest]
Thread overview: 219+ 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 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:30 ` Andrea Arcangeli
2015-05-14 17:30 ` [PATCH 01/23] userfaultfd: linux/Documentation/vm/userfaultfd.txt Andrea Arcangeli
2015-05-14 17:30 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:30 ` 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)
2015-09-11 8:47 ` [Qemu-devel] " Michael Kerrisk (man-pages)
2015-09-11 8:47 ` Michael Kerrisk (man-pages)
2015-09-11 8:47 ` Michael Kerrisk (man-pages)
2015-12-04 15:50 ` Michael Kerrisk (man-pages)
2015-12-04 15:50 ` [Qemu-devel] " 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
2015-12-04 17:55 ` [Qemu-devel] " Andrea Arcangeli
2015-12-04 17:55 ` Andrea Arcangeli
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 17:30 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:30 ` 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 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` Andrea Arcangeli
2015-05-14 17:31 ` Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 16/23] userfaultfd: allocate the userfaultfd_ctx cacheline aligned Andrea Arcangeli
2015-05-14 17:31 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` Andrea Arcangeli
2015-05-14 17:31 ` Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 04/23] userfaultfd: linux/userfaultfd_k.h Andrea Arcangeli
2015-05-14 17:31 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` 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 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` 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 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` 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 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` 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 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` 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 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 10/23] userfaultfd: add new syscall to provide memory externalization Andrea Arcangeli
2015-05-14 17:31 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` Andrea Arcangeli
2015-05-14 17:49 ` Linus Torvalds
2015-05-14 17:49 ` [Qemu-devel] " Linus Torvalds
2015-05-14 17:49 ` Linus Torvalds
2015-05-15 16:04 ` Andrea Arcangeli
2015-05-15 16:04 ` [Qemu-devel] " Andrea Arcangeli
2015-05-15 16:04 ` Andrea Arcangeli
2015-05-15 16:04 ` Andrea Arcangeli
2015-05-15 18:22 ` Linus Torvalds
2015-05-15 18:22 ` [Qemu-devel] " Linus Torvalds
2015-05-15 18:22 ` Linus Torvalds
2015-05-27 11:41 ` Thomas Martitz
[not found] ` <1431624680-20153-11-git-send-email-aarcange-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-06-23 19:00 ` Dave Hansen
2015-06-23 19:00 ` [Qemu-devel] " Dave Hansen
2015-06-23 19:00 ` Dave Hansen
2015-06-23 19:00 ` Dave Hansen
[not found] ` <5589ACC3.3060401-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-06-23 21:41 ` Andrea Arcangeli
2015-06-23 21:41 ` [Qemu-devel] " Andrea Arcangeli
2015-06-23 21:41 ` Andrea Arcangeli
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 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` 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 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` 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 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 14/23] userfaultfd: wake pending userfaults Andrea Arcangeli
2015-05-14 17:31 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` Andrea Arcangeli
2015-10-22 12:10 ` Peter Zijlstra
2015-10-22 12:10 ` [Qemu-devel] " Peter Zijlstra
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 13:20 ` [Qemu-devel] " Andrea Arcangeli
2015-10-22 13:20 ` Andrea Arcangeli
2015-10-22 13:20 ` Andrea Arcangeli
2015-10-22 13:38 ` Peter Zijlstra
2015-10-22 13:38 ` [Qemu-devel] " Peter Zijlstra
2015-10-22 13:38 ` Peter Zijlstra
2015-10-22 14:18 ` Andrea Arcangeli
2015-10-22 14:18 ` [Qemu-devel] " Andrea Arcangeli
2015-10-22 14:18 ` Andrea Arcangeli
2015-10-22 14:18 ` Andrea Arcangeli
2015-10-22 14:18 ` Andrea Arcangeli
2015-10-22 15:15 ` Peter Zijlstra [this message]
2015-10-22 15:15 ` [Qemu-devel] " Peter Zijlstra
2015-10-22 15:15 ` Peter Zijlstra
2015-10-22 15:30 ` Andrea Arcangeli
2015-10-22 15:30 ` [Qemu-devel] " Andrea Arcangeli
2015-10-22 15:30 ` Andrea Arcangeli
2015-10-22 15:30 ` Andrea Arcangeli
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
2015-05-14 17:31 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` 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 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 18/23] userfaultfd: buildsystem activation Andrea Arcangeli
2015-05-14 17:31 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 19/23] userfaultfd: activate syscall Andrea Arcangeli
2015-05-14 17:31 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` Andrea Arcangeli
2015-08-11 10:07 ` [Qemu-devel] " Bharata B Rao
2015-08-11 10:07 ` Bharata B Rao
2015-08-11 10:07 ` Bharata B Rao
2015-08-11 13:48 ` Andrea Arcangeli
2015-08-11 13:48 ` Andrea Arcangeli
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
2015-08-12 5:23 ` Bharata B Rao
2015-08-12 5:23 ` Bharata B Rao
2015-08-12 5:23 ` Bharata B Rao
[not found] ` <20150812052346.GC4587-xthvdsQ13ZrQT0dZR+AlfA@public.gmane.org>
2015-09-08 6:08 ` Michael Ellerman
2015-09-08 6:08 ` Michael Ellerman
2015-09-08 6:08 ` Michael Ellerman
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
2015-09-08 6:39 ` Bharata B Rao
2015-09-08 6:39 ` Bharata B Rao
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 7:14 ` Michael Ellerman
2015-09-08 7:14 ` Michael Ellerman
2015-09-08 7:14 ` Michael Ellerman
2015-09-08 10:40 ` Michael Ellerman
2015-09-08 10:40 ` Michael Ellerman
2015-09-08 12:28 ` Dr. David Alan Gilbert
2015-09-08 12:28 ` Dr. David Alan Gilbert
2015-09-08 12:28 ` Dr. David Alan Gilbert
2015-09-08 8:59 ` Dr. David Alan Gilbert
2015-09-08 8:59 ` Dr. David Alan Gilbert
2015-09-08 8:59 ` Dr. David Alan Gilbert
2015-09-08 10:00 ` Bharata B Rao
2015-09-08 10:00 ` Bharata B Rao
2015-09-08 10:00 ` Bharata B Rao
2015-09-08 10:00 ` Bharata B Rao
2015-09-08 12:46 ` Dr. David Alan Gilbert
2015-09-08 12:46 ` Dr. David Alan Gilbert
2015-09-08 12:46 ` Dr. David Alan Gilbert
2015-09-08 13:37 ` Bharata B Rao
2015-09-08 13:37 ` Bharata B Rao
2015-09-08 13:37 ` Bharata B Rao
2015-09-08 13:37 ` Bharata B Rao
2015-09-08 13:37 ` Bharata B Rao
2015-09-08 14:13 ` Dr. David Alan Gilbert
2015-09-08 14:13 ` Dr. David Alan Gilbert
2015-09-08 14:13 ` Dr. David Alan Gilbert
2015-09-08 14:13 ` Dr. David Alan Gilbert
2015-09-08 14:13 ` Dr. David Alan Gilbert
2015-09-10 12:24 ` Bharata B Rao
2015-09-11 19:15 ` Dr. David Alan Gilbert
2015-09-14 18:53 ` 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 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` 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 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 22/23] userfaultfd: avoid mmap_sem read recursion in mcopy_atomic Andrea Arcangeli
2015-05-14 17:31 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` Andrea Arcangeli
2015-05-22 20:18 ` Andrew Morton
2015-05-22 20:18 ` [Qemu-devel] " Andrew Morton
2015-05-22 20:18 ` Andrew Morton
2015-05-22 20:48 ` Andrea Arcangeli
2015-05-22 20:48 ` [Qemu-devel] " Andrea Arcangeli
2015-05-22 20:48 ` Andrea Arcangeli
2015-05-22 21:18 ` Andrew Morton
2015-05-22 21:18 ` [Qemu-devel] " Andrew Morton
2015-05-22 21:18 ` Andrew Morton
2015-05-23 1:04 ` Andrea Arcangeli
2015-05-23 1:04 ` [Qemu-devel] " Andrea Arcangeli
2015-05-23 1:04 ` Andrea Arcangeli
2015-05-23 1:04 ` Andrea Arcangeli
2015-05-23 1:04 ` Andrea Arcangeli
2015-05-14 17:31 ` [PATCH 23/23] userfaultfd: UFFDIO_COPY and UFFDIO_ZEROPAGE Andrea Arcangeli
2015-05-14 17:31 ` [Qemu-devel] " Andrea Arcangeli
2015-05-14 17:31 ` Andrea Arcangeli
2015-05-18 14:24 ` [PATCH 00/23] userfaultfd v4 Pavel Emelyanov
2015-05-18 14:24 ` [Qemu-devel] " Pavel Emelyanov
2015-05-18 14:24 ` Pavel Emelyanov
2015-05-18 14:24 ` Pavel Emelyanov
2015-05-19 21:38 ` Andrew Morton
2015-05-19 21:38 ` [Qemu-devel] " Andrew Morton
2015-05-19 21:38 ` Andrew Morton
2015-05-19 21:59 ` Richard Weinberger
2015-05-19 21:59 ` [Qemu-devel] " Richard Weinberger
2015-05-19 21:59 ` Richard Weinberger
2015-05-20 14:17 ` Andrea Arcangeli
2015-05-20 14:17 ` [Qemu-devel] " Andrea Arcangeli
2015-05-20 14:17 ` Andrea Arcangeli
2015-05-20 14:17 ` Andrea Arcangeli
2015-05-20 13:23 ` Andrea Arcangeli
2015-05-20 13:23 ` [Qemu-devel] " Andrea Arcangeli
2015-05-20 13:23 ` Andrea Arcangeli
2015-05-21 13:11 ` Kirill Smelkov
2015-05-21 13:11 ` [Qemu-devel] " Kirill Smelkov
2015-05-21 13:11 ` Kirill Smelkov
2015-05-21 15:52 ` Andrea Arcangeli
2015-05-21 15:52 ` [Qemu-devel] " Andrea Arcangeli
2015-05-21 15:52 ` Andrea Arcangeli
2015-05-21 15:52 ` Andrea Arcangeli
2015-05-21 15:52 ` Andrea Arcangeli
2015-05-22 16:35 ` Kirill Smelkov
2015-05-22 16:35 ` [Qemu-devel] " Kirill Smelkov
2015-05-22 16:35 ` Kirill Smelkov
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