Hi, There is a bug in the backup job that breaks backups from images whose size is not aligned to the job's cluster size (i.e., qemu crashes because of a failed assertion). If this bug makes it into the release, it would be a regression from 5.0.
On one hand, this is probably a rare configuration that should not happen in practice. On the other, it is a regression, and the fix (patch 1) is simple. So I think it would be good to have this in 5.1. The following changes since commit e1d322c40524d2c544d1fcd37b267d106d16d328: Update version for v5.1.0-rc3 release (2020-08-05 17:37:17 +0100) are available in the Git repository at: https://github.com/XanClic/qemu.git tags/pull-block-2020-08-11 for you to fetch changes up to 1f3765b652930a3b485f1a67542c2410c3774abe: iotests: add test for unaligned granularity bitmap backup (2020-08-11 09:29:31 +0200) ---------------------------------------------------------------- Block patches for 5.1.0-rc4: - Fix abort when running a backup job on an image whose size is not aligned to the backup job's cluster size ---------------------------------------------------------------- Stefan Reiter (2): block/block-copy: always align copied region to cluster size iotests: add test for unaligned granularity bitmap backup block/block-copy.c | 3 ++ tests/qemu-iotests/304 | 60 ++++++++++++++++++++++++++++++++++++++ tests/qemu-iotests/304.out | 2 ++ tests/qemu-iotests/group | 1 + 4 files changed, 66 insertions(+) create mode 100755 tests/qemu-iotests/304 create mode 100644 tests/qemu-iotests/304.out -- 2.26.2