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|
#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2015 Facebook. All Rights Reserved.
#
# FS QA Test No. 455
#
# Run fsx with log writes to verify power fail safeness.
#
. ./common/preamble
_begin_fstest auto log replay recoveryloop
# Override the default cleanup function.
_cleanup()
{
_log_writes_cleanup
_dmthin_cleanup
}
# Import common functions.
. ./common/filter
. ./common/dmthin
. ./common/dmlogwrites
# real QA test starts here
_supported_fs generic
_require_test
_require_scratch_nocheck
_require_no_logdev
_require_log_writes
_require_dm_target thin-pool
_reset_dmthin()
{
# With bcachefs, we need to wipe and start fresh every time we replay to a
# different point in time - if we see metadata from a future point in time,
# or an unrelated mount, bcachefs will get confused:
if [ "$FSTYP" = "bcachefs" ]; then
_dmthin_cleanup
_dmthin_init $devsize $devsize $csize $lowspace
fi
}
check_files()
{
local name=$1
# Now look for our files
for i in $(find $SANITY_DIR -type f | grep $name | grep mark); do
local filename=$(basename $i)
local mark="${filename##*.}"
echo "checking $filename" >> $seqres.full
_reset_dmthin
_log_writes_replay_log $filename $DMTHIN_VOL_DEV
_dmthin_mount
local expected_md5=$(_md5_checksum $i)
local md5=$(_md5_checksum $SCRATCH_MNT/$name)
[ "${md5}" != "${expected_md5}" ] && _fail "$filename md5sum mismatched"
_dmthin_check_fs
done
}
SANITY_DIR=$TEST_DIR/fsxtests
rm -rf $SANITY_DIR
mkdir $SANITY_DIR
size=$(_small_fs_size_mb 200) # 200m phys/virt size
devsize=$((1024*1024*size / 512))
csize=$((1024*64 / 512)) # 64k cluster size
lowspace=$((1024*1024 / 512)) # 1m low space threshold
# 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.
_dmthin_init $devsize $devsize $csize $lowspace
# Create the log
_log_writes_init $DMTHIN_VOL_DEV
_log_writes_mkfs >> $seqres.full 2>&1
# Log writes emulates discard support, turn it on for maximum crying.
_log_writes_mount -o discard
NUM_FILES=4
NUM_OPS=200
FSX_OPTS="-N $NUM_OPS -d -P $SANITY_DIR -i $LOGWRITES_DMDEV"
# Set random seeds for fsx runs (0 for timestamp + pid)
# When test failure is detected, check the seed values printed
# by fsx processes to $seqres.full and set them in this array
# to repeat the same fsx runs
seeds=(0 0 0 0)
# Run fsx for a while
for j in `seq 0 $((NUM_FILES-1))`; do
run_check $here/ltp/fsx $FSX_OPTS $FSX_AVOID -S ${seeds[$j]} -j $j $SCRATCH_MNT/testfile$j &
done
wait
test_md5=()
for j in `seq 0 $((NUM_FILES-1))`; do
test_md5[$j]=$(_md5_checksum $SCRATCH_MNT/testfile$j)
done
# Unmount the scratch dir and tear down the log writes target
_log_writes_mark last
_log_writes_unmount
_log_writes_mark end
_log_writes_remove
_dmthin_check_fs
# check pre umount
echo "checking pre umount" >> $seqres.full
_reset_dmthin
_log_writes_replay_log last $DMTHIN_VOL_DEV
_dmthin_mount
_dmthin_check_fs
for j in `seq 0 $((NUM_FILES-1))`; do
check_files testfile$j
done
# Check the end
echo "checking post umount" >> $seqres.full
_reset_dmthin
_log_writes_replay_log end $DMTHIN_VOL_DEV
_dmthin_mount
for j in `seq 0 $((NUM_FILES-1))`; do
md5=$(_md5_checksum $SCRATCH_MNT/testfile$j)
[ "${md5}" != "${test_md5[$j]}" ] && _fail "testfile$j end md5sum mismatched"
done
_dmthin_check_fs
echo "Silence is golden"
status=0
exit
|
