On 01.12.2020 21:54, Peter Xu wrote:
On Tue, Dec 01, 2020 at 02:24:12PM +0300, Andrey Gruzdev wrote:
On 01.12.2020 13:53, Peter Krempa wrote:
On Tue, Dec 01, 2020 at 11:42:18 +0300, Andrey Gruzdev wrote:
On 01.12.2020 10:08, Peter Krempa wrote:
On Thu, Nov 26, 2020 at 18:17:28 +0300, Andrey
On 01.12.2020 23:01, Dr. David Alan Gilbert wrote:
* Peter Xu (pet...@redhat.com) wrote:
On Tue, Dec 01, 2020 at 06:40:55PM +, Dr. David Alan Gilbert wrote:
Yep, seems that current userfaultfd supports hugetlbfs and shared memory for
missing pages but not for wr-protected..
For
On 01.12.2020 21:40, Dr. David Alan Gilbert wrote:
* Andrey Gruzdev (andrey.gruz...@virtuozzo.com) wrote:
On 01.12.2020 13:53, Peter Krempa wrote:
On Tue, Dec 01, 2020 at 11:42:18 +0300, Andrey Gruzdev wrote:
On 01.12.2020 10:08, Peter Krempa wrote:
On Thu, Nov 26, 2020 at 18:17:28 +0300,
* Peter Xu (pet...@redhat.com) wrote:
> On Tue, Dec 01, 2020 at 06:40:55PM +, Dr. David Alan Gilbert wrote:
> > > Yep, seems that current userfaultfd supports hugetlbfs and shared memory
> > > for
> > > missing pages but not for wr-protected..
> >
> > For hugepages, you'd need kernel support
* Peter Xu (pet...@redhat.com) wrote:
> On Tue, Dec 01, 2020 at 02:24:12PM +0300, Andrey Gruzdev wrote:
> > On 01.12.2020 13:53, Peter Krempa wrote:
> > > On Tue, Dec 01, 2020 at 11:42:18 +0300, Andrey Gruzdev wrote:
> > > > On 01.12.2020 10:08, Peter Krempa wrote:
> > > > > On Thu, Nov 26, 2020
On Tue, Dec 01, 2020 at 06:40:55PM +, Dr. David Alan Gilbert wrote:
> > Yep, seems that current userfaultfd supports hugetlbfs and shared memory for
> > missing pages but not for wr-protected..
>
> For hugepages, you'd need kernel support - but also you'd want to make
> sure you write the
On Tue, Dec 01, 2020 at 02:24:12PM +0300, Andrey Gruzdev wrote:
> On 01.12.2020 13:53, Peter Krempa wrote:
> > On Tue, Dec 01, 2020 at 11:42:18 +0300, Andrey Gruzdev wrote:
> > > On 01.12.2020 10:08, Peter Krempa wrote:
> > > > On Thu, Nov 26, 2020 at 18:17:28 +0300, Andrey Gruzdev via wrote:
> >
* Andrey Gruzdev (andrey.gruz...@virtuozzo.com) wrote:
> On 01.12.2020 13:53, Peter Krempa wrote:
> > On Tue, Dec 01, 2020 at 11:42:18 +0300, Andrey Gruzdev wrote:
> > > On 01.12.2020 10:08, Peter Krempa wrote:
> > > > On Thu, Nov 26, 2020 at 18:17:28 +0300, Andrey Gruzdev via wrote:
> > > > >
On 01.12.2020 13:53, Peter Krempa wrote:
On Tue, Dec 01, 2020 at 11:42:18 +0300, Andrey Gruzdev wrote:
On 01.12.2020 10:08, Peter Krempa wrote:
On Thu, Nov 26, 2020 at 18:17:28 +0300, Andrey Gruzdev via wrote:
This patch series is a kind of 'rethinking' of Denis Plotnikov's ideas he's
[...]
On Tue, Dec 01, 2020 at 11:42:18 +0300, Andrey Gruzdev wrote:
> On 01.12.2020 10:08, Peter Krempa wrote:
> > On Thu, Nov 26, 2020 at 18:17:28 +0300, Andrey Gruzdev via wrote:
> > > This patch series is a kind of 'rethinking' of Denis Plotnikov's ideas
> > > he's
[...]
> > Note that in cases
On 01.12.2020 10:08, Peter Krempa wrote:
On Thu, Nov 26, 2020 at 18:17:28 +0300, Andrey Gruzdev via wrote:
This patch series is a kind of 'rethinking' of Denis Plotnikov's ideas he's
implemented in his series '[PATCH v0 0/4] migration: add background snapshot'.
Hi,
I gave this a try when
On Thu, Nov 26, 2020 at 18:17:28 +0300, Andrey Gruzdev via wrote:
> This patch series is a kind of 'rethinking' of Denis Plotnikov's ideas he's
> implemented in his series '[PATCH v0 0/4] migration: add background snapshot'.
Hi,
I gave this a try when attempting to implement the libvirt code for
On 28.11.2020 01:04, Peter Xu wrote:
On Thu, Nov 26, 2020 at 06:17:28PM +0300, Andrey Gruzdev wrote:
Changes v3->v4:
* 1. Renamed migrate capability 'track-writes-ram'->'background-snapshot'.
* 2. Use array of incompatible caps to replace bulky 'if' constructs.
* 3. Moved UFFD low-level code
On Thu, Nov 26, 2020 at 06:17:28PM +0300, Andrey Gruzdev wrote:
> Changes v3->v4:
>
> * 1. Renamed migrate capability 'track-writes-ram'->'background-snapshot'.
> * 2. Use array of incompatible caps to replace bulky 'if' constructs.
> * 3. Moved UFFD low-level code to the separate module
On 27.11.2020 18:45, Peter Xu wrote:
On Fri, Nov 27, 2020 at 01:00:48PM +0300, Andrey Gruzdev wrote:
On 27.11.2020 12:49, Peter Krempa wrote:
On Fri, Nov 27, 2020 at 11:21:39 +0300, Andrey Gruzdev wrote:
On 26.11.2020 18:47, Peter Krempa wrote:
On Thu, Nov 26, 2020 at 18:17:28 +0300, Andrey
On Fri, Nov 27, 2020 at 01:00:48PM +0300, Andrey Gruzdev wrote:
> On 27.11.2020 12:49, Peter Krempa wrote:
> > On Fri, Nov 27, 2020 at 11:21:39 +0300, Andrey Gruzdev wrote:
> > > On 26.11.2020 18:47, Peter Krempa wrote:
> > > > On Thu, Nov 26, 2020 at 18:17:28 +0300, Andrey Gruzdev via wrote:
> >
On 27.11.2020 12:49, Peter Krempa wrote:
On Fri, Nov 27, 2020 at 11:21:39 +0300, Andrey Gruzdev wrote:
On 26.11.2020 18:47, Peter Krempa wrote:
On Thu, Nov 26, 2020 at 18:17:28 +0300, Andrey Gruzdev via wrote:
This patch series is a kind of 'rethinking' of Denis Plotnikov's ideas he's
On Fri, Nov 27, 2020 at 11:21:39 +0300, Andrey Gruzdev wrote:
> On 26.11.2020 18:47, Peter Krempa wrote:
> > On Thu, Nov 26, 2020 at 18:17:28 +0300, Andrey Gruzdev via wrote:
> > > This patch series is a kind of 'rethinking' of Denis Plotnikov's ideas
> > > he's
> > > implemented in his series
On 26.11.2020 18:47, Peter Krempa wrote:
On Thu, Nov 26, 2020 at 18:17:28 +0300, Andrey Gruzdev via wrote:
This patch series is a kind of 'rethinking' of Denis Plotnikov's ideas he's
implemented in his series '[PATCH v0 0/4] migration: add background snapshot'.
Currently the only way to make
On Thu, Nov 26, 2020 at 18:17:28 +0300, Andrey Gruzdev via wrote:
> This patch series is a kind of 'rethinking' of Denis Plotnikov's ideas he's
> implemented in his series '[PATCH v0 0/4] migration: add background snapshot'.
>
> Currently the only way to make (external) live VM snapshot is using
This patch series is a kind of 'rethinking' of Denis Plotnikov's ideas he's
implemented in his series '[PATCH v0 0/4] migration: add background snapshot'.
Currently the only way to make (external) live VM snapshot is using existing
dirty page logging migration mechanism. The main problem is that
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