numam-spdk/test/ftl/restore.sh
Mateusz Kozlowski 77c1766144 lib/ftl: Expand restore tests
Both clean and dirty shutdown tests were expanded to perform additional
writes after restore, to make sure write pointers have been correctly
re-initialised and don't cause data corruption.

Signed-off-by: Mateusz Kozlowski <mateusz.kozlowski@intel.com>
Change-Id: I662cf196319a39fb1cab455f5a76571904c20215
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/457618
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
2019-06-26 07:09:00 +00:00

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#!/usr/bin/env bash
testdir=$(readlink -f $(dirname $0))
rootdir=$(readlink -f $testdir/../..)
source $rootdir/test/common/autotest_common.sh
rpc_py=$rootdir/scripts/rpc.py
mount_dir=$(mktemp -d)
device=$1
uuid=$2
restore_kill() {
if mount | grep $mount_dir; then
umount $mount_dir
fi
rm -rf $mount_dir
rm -f $testdir/testfile.md5
rm -f $testdir/testfile2.md5
rm -f $testdir/config/ftl.json
$rpc_py delete_ftl_bdev -b nvme0
killprocess $svcpid
rmmod nbd || true
}
trap "restore_kill; exit 1" SIGINT SIGTERM EXIT
$rootdir/test/app/bdev_svc/bdev_svc & svcpid=$!
# Wait until bdev_svc starts
waitforlisten $svcpid
if [ -n "$uuid" ]; then
$rpc_py construct_ftl_bdev -b nvme0 -a $device -l 0-3 -u $uuid
else
$rpc_py construct_ftl_bdev -b nvme0 -a $device -l 0-3
fi
# Load the nbd driver
modprobe nbd
$rpc_py start_nbd_disk nvme0 /dev/nbd0
waitfornbd nbd0
$rpc_py save_config > $testdir/config/ftl.json
# Prepare the disk by creating ext4 fs and putting a file on it
mkfs.ext4 -F /dev/nbd0
mount /dev/nbd0 $mount_dir
dd if=/dev/urandom of=$mount_dir/testfile bs=4K count=256K
sync
mount -o remount /dev/nbd0 $mount_dir
md5sum $mount_dir/testfile > $testdir/testfile.md5
# Kill bdev service and start it again
umount $mount_dir
killprocess $svcpid
$rootdir/test/app/bdev_svc/bdev_svc & svcpid=$!
# Wait until bdev_svc starts
waitforlisten $svcpid
$rpc_py load_config < $testdir/config/ftl.json
mount /dev/nbd0 $mount_dir
# Write second file, to make sure writer thread has restored properly
dd if=/dev/urandom of=$mount_dir/testfile2 bs=4K count=256K
md5sum $mount_dir/testfile2 > $testdir/testfile2.md5
# Make sure second file will be read from disk
echo 3 > /proc/sys/vm/drop_caches
# Check both files have proper data
md5sum -c $testdir/testfile.md5
md5sum -c $testdir/testfile2.md5
report_test_completion occsd_restore
trap - SIGINT SIGTERM EXIT
restore_kill