From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
To: qemu-block@nongnu.org
Cc: kwolf@redhat.com, vsementsov@virtuozzo.com,
qemu-stable@nongnu.org, qemu-devel@nongnu.org, mreitz@redhat.com,
jsnow@redhat.com
Subject: [PATCH for-4.2 0/2] Fix bitmap migration
Date: Mon, 25 Nov 2019 15:52:27 +0300 [thread overview]
Message-ID: <20191125125229.13531-1-vsementsov@virtuozzo.com> (raw)
Hi all!
We've faced a bug in rhev-2.12.0-33.el7-based Qemu.
In upstream, bug introduced in 4.0 by 74da6b943565c45
"block/dirty-bitmaps: implement inconsistent bit" commit.
At this commit we started to load inconsistent bitmap instead of
silently ignoring them, and it now I see that it breaks migration.
The fix is very simple, so I think it's OK for 4.2.. Still, it's not a
degradation, so we may postpone it to 5.0.
Vladimir Sementsov-Ogievskiy (2):
block/qcow2-bitmap: fix bitmap migration
iotests: add new test cases to bitmap migration
block/qcow2-bitmap.c | 21 ++++++++++++++++++++-
tests/qemu-iotests/169 | 22 +++++++++++++++-------
tests/qemu-iotests/169.out | 4 ++--
3 files changed, 37 insertions(+), 10 deletions(-)
--
2.21.0
next reply other threads:[~2019-11-25 12:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-25 12:52 Vladimir Sementsov-Ogievskiy [this message]
2019-11-25 12:52 ` [PATCH 1/2] block/qcow2-bitmap: fix bitmap migration Vladimir Sementsov-Ogievskiy
2019-11-25 12:52 ` [PATCH 2/2] iotests: add new test cases to " Vladimir Sementsov-Ogievskiy
2019-11-25 13:50 ` [PATCH for-4.2 0/2] Fix " Max Reitz
2019-11-25 14:04 ` Vladimir Sementsov-Ogievskiy
2019-11-26 10:31 ` Max Reitz
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