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[PATCH 0/3] Repair duplicated clusters in parallels image
From: |
Natalia Kuzmina |
Subject: |
[PATCH 0/3] Repair duplicated clusters in parallels image |
Date: |
Mon, 18 Apr 2022 14:04:27 +0300 |
Parallels image file can be corrupted this way: two guest memory areas
refer to the same host memory area (duplicated offsets in BAT).
qemu-img check copies data from duplicated cluster to the new cluster and
writes new corresponding offset to BAT instead of duplicated one.
Test 314 uses sample corrupted image parallels-2-duplicated-cluster.bz2.
Reading from duplicated offset and from original offset returns the same
data. After repairing changing either of these blocks of data
does not affect another one.
Natalia Kuzmina (3):
qemu-img check: fixing duplicated clusters for parallels format
iotests: 314 test on duplicated clusters (parallels format)
docs: parallels image format supports consistency checks
block/parallels.c | 66 ++++++++++++-
docs/tools/qemu-img.rst | 2 +-
tests/qemu-iotests/314 | 88 ++++++++++++++++++
tests/qemu-iotests/314.out | 36 +++++++
.../parallels-2-duplicated-cluster.bz2 | Bin 0 -> 148 bytes
5 files changed, 189 insertions(+), 3 deletions(-)
create mode 100755 tests/qemu-iotests/314
create mode 100644 tests/qemu-iotests/314.out
create mode 100644
tests/qemu-iotests/sample_images/parallels-2-duplicated-cluster.bz2
--
2.25.1
- [PATCH 0/3] Repair duplicated clusters in parallels image,
Natalia Kuzmina <=