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
