| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # |
| # FS QA Test 757 |
| # |
| # Test async dio with fsync to test a btrfs bug where a race meant that csums |
| # weren't getting written to the log tree, causing corruptions on remount. |
| # This can be seen on subpage FSes on Linux 6.4. |
| # |
| . ./common/preamble |
| _begin_fstest auto quick metadata log recoveryloop aio thin |
| |
| _cleanup() |
| { |
| cd / |
| _log_writes_cleanup &> /dev/null |
| _dmthin_cleanup |
| rm -f $tmp.* |
| } |
| |
| |
| [ $FSTYP = "btrfs" ] && _fixed_by_kernel_commit e917ff56c8e7 \ |
| "btrfs: determine synchronous writers from bio or writeback control" |
| |
| fio_config=$tmp.fio |
| |
| . ./common/dmthin |
| . ./common/dmlogwrites |
| |
| # Use thin device as replay device, which requires $SCRATCH_DEV |
| _require_scratch_nocheck |
| _require_aiodio |
| _require_log_writes |
| _require_dm_target thin-pool |
| |
| cat >$fio_config <<EOF |
| [global] |
| iodepth=128 |
| direct=1 |
| ioengine=libaio |
| rw=randwrite |
| runtime=1s |
| [job0] |
| rw=randwrite |
| filename=$SCRATCH_MNT/file |
| size=1g |
| fdatasync=1 |
| EOF |
| |
| _require_fio $fio_config |
| |
| cat $fio_config >> $seqres.full |
| |
| # Use a thin device to provide deterministic discard behavior. Discards are used |
| # by the log replay tool for fast zeroing to prevent out-of-order replay issues. |
| _test_unmount |
| sectors=$(blockdev --getsz $SCRATCH_DEV) |
| sectors=$((sectors * 90 / 100)) |
| _dmthin_init $sectors $sectors |
| _log_writes_init $DMTHIN_VOL_DEV |
| _log_writes_mkfs >> $seqres.full 2>&1 |
| _log_writes_mark mkfs |
| |
| _log_writes_mount |
| |
| $FIO_PROG $fio_config > $seqres.full 2>&1 |
| _log_writes_unmount |
| |
| _log_writes_remove |
| |
| prev=$(_log_writes_mark_to_entry_number mkfs) |
| [ -z "$prev" ] && _fail "failed to locate entry mark 'mkfs'" |
| cur=$(_log_writes_find_next_fua $prev) |
| [ -z "$cur" ] && _notrun "could not locate any FUA write" |
| |
| while _soak_loop_running $((100 * TIME_FACTOR)); do |
| _log_writes_replay_log_range $cur $DMTHIN_VOL_DEV >> $seqres.full |
| |
| # xfs_repair won't run if the log is dirty |
| if [ $FSTYP = "xfs" ]; then |
| _dmthin_mount |
| fi |
| _dmthin_check_fs |
| |
| prev=$cur |
| cur=$(_log_writes_find_next_fua $(($cur + 1))) |
| [ -z "$cur" ] && break |
| done |
| |
| echo "Silence is golden" |
| |
| # success, all done |
| status=0 |
| exit |
