From: Eric Blake <eblake@redhat.com>
To: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>,
qemu-devel@nongnu.org
Cc: Fam Zheng <fam@euphon.net>,
qemu-block@nongnu.org, quintela@redhat.com, dgilbert@redhat.com,
Stefan Hajnoczi <stefanha@redhat.com>,
andrey.shinkevich@virtuozzo.com
Subject: Re: [PATCH v2 10/22] migration/block-dirty-bitmap: cancel migration on shutdown
Date: Thu, 23 Jul 2020 16:04:27 -0500 [thread overview]
Message-ID: <d15d7cba-f9a7-8b3e-34d2-695e317d26a5@redhat.com> (raw)
In-Reply-To: <20200217150246.29180-11-vsementsov@virtuozzo.com>
On 2/17/20 9:02 AM, Vladimir Sementsov-Ogievskiy wrote:
> If target is turned of prior to postcopy finished, target crashes
s/of/off/
> because busy bitmaps are found at shutdown.
> Canceling incoming migration helps, as it removes all unfinished (and
> therefore busy) bitmaps.
>
> Similarly on source we crash in bdrv_close_all which asserts that all
> bdrv states are removed, because bdrv states involved into dirty bitmap
> migration are referenced by it. So, we need to cancel outgoing
> migration as well.
>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> ---
>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
next prev parent reply other threads:[~2020-07-23 21:05 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-17 15:02 [PATCH v2 00/22] Fix error handling during bitmap postcopy Vladimir Sementsov-Ogievskiy
2020-02-17 15:02 ` [PATCH v2 01/22] migration/block-dirty-bitmap: fix dirty_bitmap_mig_before_vm_start Vladimir Sementsov-Ogievskiy
2020-02-18 9:44 ` Andrey Shinkevich
2020-02-17 15:02 ` [PATCH v2 02/22] migration/block-dirty-bitmap: rename state structure types Vladimir Sementsov-Ogievskiy
2020-07-23 20:50 ` Eric Blake
2020-02-17 15:02 ` [PATCH v2 03/22] migration/block-dirty-bitmap: rename dirty_bitmap_mig_cleanup Vladimir Sementsov-Ogievskiy
2020-02-18 11:00 ` Andrey Shinkevich
2020-02-19 14:20 ` Vladimir Sementsov-Ogievskiy
2020-07-23 20:54 ` Eric Blake
2020-02-17 15:02 ` [PATCH v2 04/22] migration/block-dirty-bitmap: move mutex init to dirty_bitmap_mig_init Vladimir Sementsov-Ogievskiy
2020-02-18 11:28 ` Andrey Shinkevich
2020-02-17 15:02 ` [PATCH v2 05/22] migration/block-dirty-bitmap: refactor state global variables Vladimir Sementsov-Ogievskiy
2020-02-18 13:05 ` Andrey Shinkevich
2020-02-19 15:29 ` Vladimir Sementsov-Ogievskiy
2020-02-17 15:02 ` [PATCH v2 06/22] migration/block-dirty-bitmap: rename finish_lock to just lock Vladimir Sementsov-Ogievskiy
2020-02-18 13:20 ` Andrey Shinkevich
2020-02-17 15:02 ` [PATCH v2 07/22] migration/block-dirty-bitmap: simplify dirty_bitmap_load_complete Vladimir Sementsov-Ogievskiy
2020-02-18 14:26 ` Andrey Shinkevich
2020-02-19 15:30 ` Vladimir Sementsov-Ogievskiy
2020-02-19 16:14 ` Vladimir Sementsov-Ogievskiy
2020-02-17 15:02 ` [PATCH v2 08/22] migration/block-dirty-bitmap: keep bitmap state for all bitmaps Vladimir Sementsov-Ogievskiy
2020-02-18 17:07 ` Andrey Shinkevich
2020-07-23 21:30 ` Eric Blake
2020-07-24 5:18 ` Vladimir Sementsov-Ogievskiy
2020-02-17 15:02 ` [PATCH v2 09/22] migration/block-dirty-bitmap: relax error handling in incoming part Vladimir Sementsov-Ogievskiy
2020-02-18 18:54 ` Andrey Shinkevich
2020-02-19 15:34 ` Vladimir Sementsov-Ogievskiy
2020-07-24 7:23 ` Vladimir Sementsov-Ogievskiy
2020-02-17 15:02 ` [PATCH v2 10/22] migration/block-dirty-bitmap: cancel migration on shutdown Vladimir Sementsov-Ogievskiy
2020-02-18 19:11 ` Andrey Shinkevich
2020-07-23 21:04 ` Eric Blake [this message]
2020-02-17 15:02 ` [PATCH v2 11/22] migration/savevm: don't worry if bitmap migration postcopy failed Vladimir Sementsov-Ogievskiy
2020-02-17 16:57 ` Dr. David Alan Gilbert
2020-02-18 19:44 ` Andrey Shinkevich
2020-02-17 15:02 ` [PATCH v2 12/22] qemu-iotests/199: fix style Vladimir Sementsov-Ogievskiy
2020-02-19 7:04 ` Andrey Shinkevich
2020-07-23 22:03 ` Eric Blake
2020-07-24 6:32 ` Vladimir Sementsov-Ogievskiy
2020-02-17 15:02 ` [PATCH v2 13/22] qemu-iotests/199: drop extra constraints Vladimir Sementsov-Ogievskiy
2020-02-19 8:02 ` Andrey Shinkevich
2020-02-17 15:02 ` [PATCH v2 14/22] qemu-iotests/199: better catch postcopy time Vladimir Sementsov-Ogievskiy
2020-02-19 13:16 ` Andrey Shinkevich
2020-02-19 15:44 ` Vladimir Sementsov-Ogievskiy
2020-07-24 6:50 ` Vladimir Sementsov-Ogievskiy
2020-02-17 15:02 ` [PATCH v2 15/22] qemu-iotests/199: improve performance: set bitmap by discard Vladimir Sementsov-Ogievskiy
2020-02-19 14:17 ` Andrey Shinkevich
2020-02-17 15:02 ` [PATCH v2 16/22] qemu-iotests/199: change discard patterns Vladimir Sementsov-Ogievskiy
2020-02-19 14:33 ` Andrey Shinkevich
2020-02-19 14:44 ` Andrey Shinkevich
2020-02-19 15:46 ` Vladimir Sementsov-Ogievskiy
2020-07-24 0:23 ` Eric Blake
2020-02-17 15:02 ` [PATCH v2 17/22] qemu-iotests/199: increase postcopy period Vladimir Sementsov-Ogievskiy
2020-02-19 14:56 ` Andrey Shinkevich
2020-07-24 0:14 ` Eric Blake
2020-02-17 15:02 ` [PATCH v2 18/22] python/qemu/machine: add kill() method Vladimir Sementsov-Ogievskiy
2020-02-19 17:00 ` Andrey Shinkevich
2020-05-29 10:09 ` Philippe Mathieu-Daudé
2020-02-17 15:02 ` [PATCH v2 19/22] qemu-iotests/199: prepare for new test-cases addition Vladimir Sementsov-Ogievskiy
2020-02-19 16:10 ` Andrey Shinkevich
2020-02-17 15:02 ` [PATCH v2 20/22] qemu-iotests/199: check persistent bitmaps Vladimir Sementsov-Ogievskiy
2020-02-19 16:28 ` Andrey Shinkevich
2020-02-17 15:02 ` [PATCH v2 21/22] qemu-iotests/199: add early shutdown case to bitmaps postcopy Vladimir Sementsov-Ogievskiy
2020-02-19 16:48 ` Andrey Shinkevich
2020-02-19 16:50 ` Andrey Shinkevich
2020-02-17 15:02 ` [PATCH v2 22/22] qemu-iotests/199: add source-killed " Vladimir Sementsov-Ogievskiy
2020-02-19 17:15 ` Andrey Shinkevich
2020-07-24 7:50 ` Vladimir Sementsov-Ogievskiy
2020-02-17 19:31 ` [PATCH v2 00/22] Fix error handling during bitmap postcopy no-reply
2020-02-18 20:02 ` Andrey Shinkevich
2020-02-18 20:57 ` Eric Blake
2020-02-19 13:25 ` Andrey Shinkevich
2020-02-19 13:36 ` Eric Blake
2020-02-19 13:52 ` Andrey Shinkevich
2020-02-19 14:58 ` Eric Blake
2020-02-19 17:22 ` Andrey Shinkevich
2020-02-19 14:00 ` Eric Blake
2020-04-02 7:42 ` Vladimir Sementsov-Ogievskiy
2020-05-29 11:58 ` Eric Blake
2020-05-29 12:16 ` Vladimir Sementsov-Ogievskiy
2020-07-23 20:39 ` Eric Blake
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