77c1766144
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>
103 lines
3.2 KiB
Bash
Executable File
103 lines
3.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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testdir=$(readlink -f $(dirname $0))
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rootdir=$(readlink -f $testdir/../..)
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source $rootdir/test/common/autotest_common.sh
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rpc_py=$rootdir/scripts/rpc.py
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pu_start=0
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pu_end=3
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additional_blocks=16
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device=$1
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uuid=$2
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restore_kill() {
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rm -f $testdir/config/ftl.json
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rm -f $testdir/empty
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rm -f $testdir/testblock
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rm -f $testdir/testfile.md5
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rm -f $testdir/testfile2.md5
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$rpc_py delete_ftl_bdev -b nvme0 || true
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killprocess $svcpid || true
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rmmod nbd || true
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}
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trap "restore_kill; exit 1" SIGINT SIGTERM EXIT
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# Extract chunk size
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chunk_size=$($rootdir/examples/nvme/identify/identify -r "trtype:PCIe traddr:$device" |
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grep 'Logical blks per chunk' | sed 's/[^0-9]//g')
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band_size=$(($chunk_size*($pu_end-$pu_start+1)))
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$rootdir/app/spdk_tgt/spdk_tgt & svcpid=$!
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# Wait until spdk_tgt starts
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waitforlisten $svcpid
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if [ -n "$uuid" ]; then
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$rpc_py construct_ftl_bdev -b nvme0 -a $device -l $pu_start-$pu_end -u $uuid -o
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else
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$rpc_py construct_ftl_bdev -b nvme0 -a $device -l $pu_start-$pu_end -o
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fi
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# Load the nbd driver
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modprobe nbd
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$rpc_py start_nbd_disk nvme0 /dev/nbd0
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waitfornbd nbd0
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$rpc_py save_config > $testdir/config/ftl.json
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# Send band worth of data in 2 steps (some data should be written to 2nd band due to metadata overhead)
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dd if=/dev/urandom of=/dev/nbd0 bs=4K count=$(($band_size - $chunk_size)) oflag=dsync
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offset=$(($band_size - $chunk_size))
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dd if=/dev/urandom of=/dev/nbd0 bs=4K count=$chunk_size seek=$offset oflag=dsync
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offset=$(($offset + $chunk_size))
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# Save md5 data of first batch (which should be fully on a closed band and recoverable)
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dd if=/dev/nbd0 bs=4K count=$(($band_size - $chunk_size)) | md5sum > $testdir/testfile.md5
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# Make sure the third batch of written data is fully on the second band
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dd if=/dev/urandom of=/dev/nbd0 bs=4K count=$additional_blocks seek=$offset oflag=dsync
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offset=$(($offset + $additional_blocks))
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$rpc_py stop_nbd_disk /dev/nbd0
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# Force kill bdev service (dirty shutdown) and start it again
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kill -9 $svcpid
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rm -f /dev/shm/spdk_tgt_trace.pid$svcpid
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# TODO Adapt this after waitforlisten is expanded
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sleep 5
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$rootdir/app/spdk_tgt/spdk_tgt & svcpid=$!
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# Wait until spdk_tgt starts
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waitforlisten $svcpid
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# Ftl should recover, though with a loss of data (-o config option)
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$rpc_py load_config < $testdir/config/ftl.json
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# Write extra data after restore
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dd if=/dev/urandom of=/dev/nbd0 bs=4K count=$chunk_size seek=$offset oflag=dsync
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# Save md5 data
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dd if=/dev/nbd0 bs=4K count=$chunk_size skip=$offset | md5sum > $testdir/testfile2.md5
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# Make sure all data will be read from disk
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echo 3 > /proc/sys/vm/drop_caches
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# Without persistent cache, first batch of data should be recoverable
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dd if=/dev/nbd0 bs=4K count=$(($band_size - $chunk_size)) | md5sum -c $testdir/testfile.md5
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dd if=/dev/nbd0 of=$testdir/testblock bs=4k count=$additional_blocks skip=$band_size
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# Last 4k blocks from before restore should be on second band, and return as 0s
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dd if=/dev/zero of=$testdir/empty bs=4k count=$additional_blocks
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cmp $testdir/empty $testdir/testblock
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# Verify data written after restore is still there
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dd if=/dev/nbd0 bs=4K count=$chunk_size skip=$(($band_size + $additional_blocks)) | md5sum -c $testdir/testfile2.md5
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report_test_completion ftl_dirty_shutdown
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trap - SIGINT SIGTERM EXIT
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restore_kill
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