#! /bin/bash # SPDX-License-Identifier: GPL-2.0 # Copyright (c) 2022 Christoph Hellwig. # # FS QA Test 268 # # Test that btrfs read repair on a raid1 profile won't loop forever if data # is corrupted on both mirrors and can't be recovered. # . ./common/preamble _begin_fstest auto quick read_repair . ./common/filter _supported_fs btrfs _require_scratch _require_odirect # No data checksums for NOCOW case, so can't detect corruption and repair data. _require_btrfs_no_nodatacow _require_non_zoned_device "${SCRATCH_DEV}" # no overwrites on zoned devices _require_scratch_dev_pool 2 _scratch_dev_pool_get 2 echo "step 1......mkfs.btrfs" _scratch_pool_mkfs "-d raid1 -b 1G" >>$seqres.full 2>&1 _scratch_mount $XFS_IO_PROG -f -d -c "pwrite -S 0xaa -b 256K 0 256K" \ "$SCRATCH_MNT/foobar" | \ _filter_xfs_io_offset # ensure btrfs-map-logical sees the tree updates sync logical=$(_btrfs_get_first_logical $SCRATCH_MNT/foobar) physical1=$(_btrfs_get_physical ${logical} 1) devpath1=$(_btrfs_get_device_path ${logical} 1) physical2=$(_btrfs_get_physical ${logical} 2) devpath2=$(_btrfs_get_device_path ${logical} 2) physical3=$(_btrfs_get_physical ${logical} 3) devpath3=$(_btrfs_get_device_path ${logical} 3) _scratch_unmount echo "step 2......corrupt file extent" $XFS_IO_PROG -d -c "pwrite -S 0xba -b 4K $physical1 4K" \ $devpath1 > /dev/null $XFS_IO_PROG -d -c "pwrite -S 0xba -b 4K $physical2 4K" \ $devpath2 > /dev/null _scratch_mount echo "step 3......try to repair" $XFS_IO_PROG -d -c "pread -b 4K 0 4K" $SCRATCH_MNT/foobar _scratch_unmount _scratch_dev_pool_put # success, all done status=0 exit