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From: "Denis V. Lunev" <den@openvz.org>
To: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>,
	qemu-devel@nongnu.org, Juan Quintela <quintela@redhat.com>
Subject: Re: [Qemu-devel] [PATCH for 2.5 v6 0/10] dataplane snapshot fixes
Date: Mon, 9 Nov 2015 20:57:26 +0300	[thread overview]
Message-ID: <5640DE86.6020408@openvz.org> (raw)
In-Reply-To: <20151109173742.GD29494@stefanha-x1.localdomain>

On 11/09/2015 08:37 PM, Stefan Hajnoczi wrote:
> On Sat, Nov 07, 2015 at 06:54:50PM +0300, Denis V. Lunev wrote:
>> with test
>>      while /bin/true ; do
>>          virsh snapshot-create rhel7
>>          sleep 10
>>          virsh snapshot-delete rhel7 --current
>>      done
>> with enabled iothreads on a running VM leads to a lot of troubles: hangs,
>> asserts, errors.
>>
>> Anyway, I think that the construction like
>>      assert(aio_context_is_locked(aio_context));
>> should be widely used to ensure proper locking.
>>
>> Changes from v5:
>> - dropped already merged patch 11
>> - fixed spelling in patch 1
>> - changed order of condition in loops in all patches. Thank you Stefan :)
>> - dropped patch 9
>> - aio_context is not acquired any more in bdrv_all_find_vmstate_bs by request
>>    of Stefan
>> - patch 10 is implemented in completely different way
> I left comments on specific patches.  Besides that, I'm happy.
OK. that sounds good enough to me. These changes
are not a problem at all.

Should we ask Juan that this is good for him?

Den

  reply	other threads:[~2015-11-09 17:57 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-07 15:54 [Qemu-devel] [PATCH for 2.5 v6 0/10] dataplane snapshot fixes Denis V. Lunev
2015-11-07 15:54 ` [Qemu-devel] [PATCH 01/10] snapshot: create helper to test that block drivers supports snapshots Denis V. Lunev
2015-11-07 15:54 ` [Qemu-devel] [PATCH 02/10] snapshot: return error code from bdrv_snapshot_delete_by_id_or_name Denis V. Lunev
2015-11-07 15:54 ` [Qemu-devel] [PATCH 03/10] snapshot: create bdrv_all_delete_snapshot helper Denis V. Lunev
2015-11-07 15:54 ` [Qemu-devel] [PATCH 04/10] snapshot: create bdrv_all_goto_snapshot helper Denis V. Lunev
2015-11-07 15:54 ` [Qemu-devel] [PATCH 05/10] snapshot: create bdrv_all_find_snapshot helper Denis V. Lunev
2015-11-09 17:27   ` Stefan Hajnoczi
2015-11-07 15:54 ` [Qemu-devel] [PATCH 06/10] migration: drop find_vmstate_bs check in hmp_delvm Denis V. Lunev
2015-11-07 15:54 ` [Qemu-devel] [PATCH 07/10] snapshot: create bdrv_all_create_snapshot helper Denis V. Lunev
2015-11-09 17:33   ` Stefan Hajnoczi
2015-11-07 15:54 ` [Qemu-devel] [PATCH 08/10] migration: reorder processing in hmp_savevm Denis V. Lunev
2015-11-07 15:54 ` [Qemu-devel] [PATCH 09/10] migration: implement bdrv_all_find_vmstate_bs helper Denis V. Lunev
2015-11-07 15:55 ` [Qemu-devel] [PATCH 10/10] migration: normalize locking in migration/savevm.c Denis V. Lunev
2015-11-09 17:37 ` [Qemu-devel] [PATCH for 2.5 v6 0/10] dataplane snapshot fixes Stefan Hajnoczi
2015-11-09 17:57   ` Denis V. Lunev [this message]
2015-11-10  9:45     ` Stefan Hajnoczi

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