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Re: [Qemu-devel] [PULL 02/17] cpu_physical_memory_sync_dirty_bitmap: Fix
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PULL 02/17] cpu_physical_memory_sync_dirty_bitmap: Fix alignment check |
Date: |
Tue, 1 Aug 2017 18:56:02 +0100 |
On 1 August 2017 at 17:17, Paolo Bonzini <address@hidden> wrote:
> From: "Dr. David Alan Gilbert" <address@hidden>
>
> This code has an optimised, word aligned version, and a boring
> unaligned version. Recently 084140bd498909 fixed a missing offset
> addition from the core of both versions. However, the offset isn't
> necessarily aligned and thus the choice between the two versions
> needs fixing up to also include the offset.
>
> Symptom:
> A few stuck unsent pages during migration; not normally noticed
> unless under very low bandwidth in which case the migration may get
> stuck never ending and never performing a 2nd sync; noticed by
> a hanging postcopy-test on a very heavily loaded system.
>
> Fixes: 084140bd498909
>
> Signed-off-by: Dr. David Alan Gilbert <address@hidden>
> Reported-by: Alex Benneé <address@hidden>
> Tested-by: Alex Benneé <address@hidden>
>
> --
> v2
> Move 'page' inside the if (Comment from Paolo)
> Message-Id: <address@hidden>
> Signed-off-by: Paolo Bonzini <address@hidden>
Something somewhere along the line seems to have mangled the
unicode characters in Alex's name :-(
Also, Alex's email address is typoed, and what should be the
'---' marker has been written as '--' so the below-the-fold waffle
is still hanging around in the commit.
This doesn't seem worth rejecting the pull request on the
eve of rc1 for, but it's still a bit sad :-(
thanks
-- PMM
- [Qemu-devel] [PULL 00/17] Misc changes for QEMU 2.10-rc1 (?), Paolo Bonzini, 2017/08/01
- [Qemu-devel] [PULL 01/17] vl.c/exit: pause cpus before closing block devices, Paolo Bonzini, 2017/08/01
- [Qemu-devel] [PULL 05/17] char: don't exit on hmp 'chardev-add help', Paolo Bonzini, 2017/08/01
- [Qemu-devel] [PULL 04/17] char-fd: remove useless chr pointer, Paolo Bonzini, 2017/08/01
- [Qemu-devel] [PULL 03/17] accel: cleanup error output, Paolo Bonzini, 2017/08/01
- [Qemu-devel] [PULL 06/17] docs: document deprecation policy & deprecated features in appendix, Paolo Bonzini, 2017/08/01
- [Qemu-devel] [PULL 08/17] exec: Add lock parameter to qemu_ram_ptr_length, Paolo Bonzini, 2017/08/01
- [Qemu-devel] [PULL 09/17] bt: stop the sdp memory allocation craziness, Paolo Bonzini, 2017/08/01