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自验证脚本
#!/bin/bash
export disk_a=/dev/sda
export disk_a1=/dev/sda1
export disk_a2=/dev/sda2
export disk_b=/dev/sdb
export mount_point_a=/mnt/test_sda
export mount_point_b=/mnt/test_sdb
export write_dev=test_write
export excl_dev=test_excl

dmesg -C
echo "IREQ02740492 test" > log.txt

#case 1
echo "------ case1 ------" >> log.txt
./$excl_dev $disk_a1 &
sleep 1s
pid_info2=ps -ef | grep "$excl_dev" | grep -v grep | awk '{print $2}'
sleep 1s
./$write_dev $disk_a1 &
sleep 1s
pid_info1=ps -ef | grep "$write_dev" | grep -v grep | awk '{print $2}'
sleep 1s
dmesg >> log.txt
dmesg -C
kill -9 $pid_info1
sleep 1s
kill -9 $pid_info2
sleep 1s
dmesg -C

#case 2
echo "------ case2 ------" >> log.txt
./$excl_dev $disk_a &
sleep 1s
pid_info2=ps -ef | grep "$excl_dev" | grep -v grep | awk '{print $2}'
sleep 1s
./$write_dev $disk_a &
sleep 1s
pid_info1=ps -ef | grep "$write_dev" | grep -v grep | awk '{print $2}'
sleep 1s
dmesg >> log.txt
dmesg -C
kill -9 $pid_info1
sleep 1s
kill -9 $pid_info2
sleep 1s
dmesg -C

#case 3
echo "------ case3 ------" >> log.txt
./$write_dev $disk_a1 &
sleep 1s
pid_info1=ps -ef | grep "$write_dev" | grep -v grep | awk '{print $2}'
sleep 1s
./$excl_dev $disk_a1 &
sleep 1s
pid_info2=ps -ef | grep "$excl_dev" | grep -v grep | awk '{print $2}'
sleep 1s
dmesg >> log.txt
dmesg -C
kill -9 $pid_info1
sleep 1s
kill -9 $pid_info2
sleep 1s
dmesg -C

#case 4
echo "------ case4 ------" >> log.txt
./$write_dev $disk_a &
sleep 1s
pid_info1=ps -ef | grep "$write_dev" | grep -v grep | awk '{print $2}'
sleep 1s
./$excl_dev $disk_a &
sleep 1s
pid_info2=ps -ef | grep "$excl_dev" | grep -v grep | awk '{print $2}'
sleep 1s
dmesg >> log.txt
dmesg -C
kill -9 $pid_info1
sleep 1s
kill -9 $pid_info2
sleep 1s
dmesg -C

#case 5
echo "------ case5 ------" >> log.txt
./$excl_dev $disk_a &
sleep 1s
pid_info2=ps -ef | grep "$excl_dev" | grep -v grep | awk '{print $2}'
sleep 1s
./$write_dev $disk_a1 &
sleep 1s
pid_info1=ps -ef | grep "$write_dev" | grep -v grep | awk '{print $2}'
sleep 1s
dmesg >> log.txt
dmesg -C
kill -9 $pid_info1
sleep 1s
kill -9 $pid_info2
sleep 1s
dmesg -C

#case 6
echo "------ case6 ------" >> log.txt
./$excl_dev $disk_a1 &
sleep 1s
pid_info2=ps -ef | grep "$excl_dev" | grep -v grep | awk '{print $2}'
sleep 1s
./$write_dev $disk_a &
sleep 1s
pid_info1=ps -ef | grep "$write_dev" | grep -v grep | awk '{print $2}'
sleep 1s
dmesg >> log.txt
dmesg -C
kill -9 $pid_info1
sleep 1s
kill -9 $pid_info2
sleep 1s
dmesg -C

#case 7
echo "------ case7 ------" >> log.txt
./$write_dev $disk_a &
sleep 2s
pid_info1=ps -ef | grep "$write_dev" | grep -v grep | awk '{print $2}'
sleep 2s
./$excl_dev $disk_a1 &
sleep 2s
pid_info2=ps -ef | grep "$excl_dev" | grep -v grep | awk '{print $2}'
sleep 2s
dmesg >> log.txt
dmesg -C
kill -9 $pid_info1
sleep 2s
kill -9 $pid_info2
sleep 2s
dmesg -C

#case 8
echo "------ case8 ------" >> log.txt
./$write_dev $disk_a1 &
sleep 2s
pid_info1=ps -ef | grep "$write_dev" | grep -v grep | awk '{print $2}'
sleep 2s
./$excl_dev $disk_a &
sleep 2s
pid_info2=ps -ef | grep "$excl_dev" | grep -v grep | awk '{print $2}'
sleep 2s
dmesg >> log.txt
dmesg -C
kill -9 $pid_info1
sleep 2s
kill -9 $pid_info2
sleep 2s
dmesg -C

#case 9
echo "------ case9 ------" >> log.txt
echo "warning message should be NULL" >> log.txt
./$write_dev $disk_a2 &
sleep 1s
pid_info1=ps -ef | grep "$write_dev" | grep -v grep | awk '{print $2}'
sleep 1s
./$excl_dev $disk_a1 &
sleep 1s
pid_info2=ps -ef | grep "$excl_dev" | grep -v grep | awk '{print $2}'
sleep 1s
dmesg >> log.txt
dmesg -C
kill -9 $pid_info1
sleep 1s
kill -9 $pid_info2
sleep 1s
dmesg -C

#case 10
echo "------ case10 ------" >> log.txt
echo "warning message should be NULL" >> log.txt
./$excl_dev $disk_a2 &
sleep 1s
pid_info2=ps -ef | grep "$excl_dev" | grep -v grep | awk '{print $2}'
sleep 1s
./$write_dev $disk_a1 &
sleep 1s
pid_info1=ps -ef | grep "$write_dev" | grep -v grep | awk '{print $2}'
sleep 1s
dmesg >> log.txt
dmesg -C
kill -9 $pid_info1
sleep 1s
kill -9 $pid_info2
sleep 1s
dmesg -C

#case 11
echo "------ case11 ------" >> log.txt
echo "warning message should be NULL" >> log.txt
mount $disk_a1 $mount_point_a
sleep 1s
mount $disk_a2 $mount_point_b
sleep 1s
dmesg >> log.txt
dmesg -C
umount $disk_a1
sleep 1s
umount $disk_a2
sleep 1s
dmesg -C

#case 12
echo "------ case12-1 ------" >> log.txt
echo "warning message should be NULL" >> log.txt
mount $disk_b $mount_point_b
sleep 1s
dmesg >> log.txt
dmesg -C
#umount $disk_b
#sleep 1s
#dmesg -C

echo "------ case12-2 ------" >> log.txt
sleep 1s
./$write_dev $disk_b &
sleep 1s
pid_info1=ps -ef | grep "$write_dev" | grep -v grep | awk '{print $2}'
dmesg >> log.txt
dmesg -C

echo "------ case12-3 ------" >> log.txt
umount $disk_b
sleep 1s
dmesg -C
mount $disk_b $mount_point_b
sleep 1s
dmesg >> log.txt
dmesg -C
umount $disk_b
sleep 1s
dmesg -C
sleep 1s
kill -9 $pid_info1
dmesg -C

#case 13
echo "------ case13 ------" >> log.txt
mount $disk_a1 $mount_point_a
sleep 1s
./$write_dev $disk_a &
sleep 1s
pid_info1=ps -ef | grep "$write_dev" | grep -v grep | awk '{print $2}'
sleep 1s
dmesg >> log.txt
dmesg -C
kill -9 $pid_info1
sleep 1s

#case 14
echo "------ case14 ------" >> log.txt
./$write_dev $disk_a1 &
sleep 1s
pid_info1=ps -ef | grep "$write_dev" | grep -v grep | awk '{print $2}'
sleep 1s
dmesg >> log.txt
dmesg -C
kill -9 $pid_info1
sleep 1s

#case 15
echo "------ case15 ------" >> log.txt
echo "warning message should be NULL" >> log.txt
./$write_dev $disk_a2 &
sleep 1s
pid_info1=ps -ef | grep "$write_dev" | grep -v grep | awk '{print $2}'
sleep 1s
dmesg >> log.txt
dmesg -C
kill -9 $pid_info1
sleep 1s

#case 16
echo "------ case16 ------" >> log.txt
echo "warning message should be NULL" >> log.txt
./$excl_dev $disk_a2 &
sleep 1s
pid_info2=ps -ef | grep "$excl_dev" | grep -v grep | awk '{print $2}'
sleep 1s
dmesg >> log.txt
dmesg -C
kill -9 $pid_info2
sleep 1s

#umount /dev/sda1
umount $disk_a1
sleep 1s
dmesg -C

#case 17
echo "------ case17 ------" >> log.txt
./$write_dev $disk_a &
sleep 1s
pid_info1=ps -ef | grep "$write_dev" | grep -v grep | awk '{print $2}'
sleep 1s
mount $disk_a1 $mount_point_a
sleep 1s
dmesg >> log.txt
dmesg -C
kill -9 $pid_info1
sleep 1s
umount $disk_a1
sleep 1s
dmesg -C

#case 18
echo "------ case18 ------" >> log.txt
./$write_dev $disk_a1 &
sleep 1s
pid_info1=ps -ef | grep "$write_dev" | grep -v grep | awk '{print $2}'
sleep 1s
mount $disk_a1 $mount_point_a
sleep 1s
dmesg >> log.txt
dmesg -C
kill -9 $pid_info1
sleep 1s
umount $disk_a1
sleep 1s
dmesg -C

#case 19
echo "------ case19 ------" >> log.txt
echo "warning message should be NULL" >> log.txt
./$write_dev $disk_a2 &
sleep 1s
pid_info1=ps -ef | grep "$write_dev" | grep -v grep | awk '{print $2}'
sleep 1s
mount $disk_a1 $mount_point_a
sleep 1s
dmesg >> log.txt
dmesg -C
kill -9 $pid_info1
sleep 1s
umount $disk_a1
sleep 1s
dmesg -C

#case 20
echo "------ case20 ------" >> log.txt
echo "warning message should be NULL" >> log.txt
./$excl_dev $disk_a2 &
sleep 1s
pid_info2=ps -ef | grep "$excl_dev" | grep -v grep | awk '{print $2}'
sleep 1s
mount $disk_a1 $mount_point_a
sleep 1s
dmesg >> log.txt
dmesg -C
kill -9 $pid_info2
sleep 1s
umount $disk_a1
sleep 1s
dmesg -C

自验证日志
[2022-05-07 10:13:32] [root@localhost test]# dmesg -C
[2022-05-07 10:13:38] [root@localhost test]# ./c
[2022-05-07 10:13:40] case.sh creat09
[2022-05-07 10:13:40] [root@localhost test]# ./case.sh
[2022-05-07 10:13:42] fd 3
[2022-05-07 10:13:47] ./case.sh: line 93: 986 Killed ./$write_dev $disk_a1
[2022-05-07 10:13:48] ./case.sh: line 95: 978 Killed ./$excl_dev $disk_a1
[2022-05-07 10:13:48] fd 3
[2022-05-07 10:13:53] ./case.sh: line 111: 1008 Killed ./$write_dev $disk_a
[2022-05-07 10:13:54] ./case.sh: line 113: 1000 Killed ./$excl_dev $disk_a
[2022-05-07 10:13:56] fd 3
[2022-05-07 10:13:59] ./case.sh: line 129: 1025 Killed ./$write_dev $disk_a1
[2022-05-07 10:14:00] ./case.sh: line 131: 1033 Killed ./$excl_dev $disk_a1
[2022-05-07 10:14:02] fd 3
[2022-05-07 10:14:05] ./case.sh: line 147: 1047 Killed ./$write_dev $disk_a
[2022-05-07 10:14:06] ./case.sh: line 149: 1055 Killed ./$excl_dev $disk_a
[2022-05-07 10:14:06] fd 3
[2022-05-07 10:14:11] ./case.sh: line 165: 1080 Killed ./$write_dev $disk_a1
[2022-05-07 10:14:12] ./case.sh: line 167: 1072 Killed ./$excl_dev $disk_a
[2022-05-07 10:14:12] fd 3
[2022-05-07 10:14:17] ./case.sh: line 183: 1102 Killed ./$write_dev $disk_a
[2022-05-07 10:14:18] ./case.sh: line 185: 1094 Killed ./$excl_dev $disk_a1
[2022-05-07 10:14:22] fd 3
[2022-05-07 10:14:28] ./case.sh: line 201: 1119 Killed ./$write_dev $disk_a
[2022-05-07 10:14:30] ./case.sh: line 203: 1127 Killed ./$excl_dev $disk_a1
[2022-05-07 10:14:34] fd 3
[2022-05-07 10:14:40] ./case.sh: line 219: 1144 Killed ./$write_dev $disk_a1
[2022-05-07 10:14:42] ./case.sh: line 221: 1152 Killed ./$excl_dev $disk_a
[2022-05-07 10:14:44] fd 3
[2022-05-07 10:14:47] ./case.sh: line 238: 1166 Killed ./$write_dev $disk_a2
[2022-05-07 10:14:48] ./case.sh: line 240: 1174 Killed ./$excl_dev $disk_a1
[2022-05-07 10:14:48] fd 3
[2022-05-07 10:14:53] ./case.sh: line 257: 1196 Killed ./$write_dev $disk_a1
[2022-05-07 10:14:54] ./case.sh: line 259: 1188 Killed ./$excl_dev $disk_a2
[2022-05-07 10:15:06] ./case.sh: line 309: 1232 Killed ./$write_dev $disk_b
[2022-05-07 10:15:10] ./case.sh: line 322: 1261 Killed ./$write_dev $disk_a
[2022-05-07 10:15:13] ./case.sh: line 333: 1276 Killed ./$write_dev $disk_a1
[2022-05-07 10:15:16] ./case.sh: line 345: 1288 Killed ./$write_dev $disk_a2
[2022-05-07 10:15:16] fd 3
[2022-05-07 10:15:19] ./case.sh: line 357: 1300 Killed ./$excl_dev $disk_a2
[2022-05-07 10:15:24] ./case.sh: line 375: 1314 Killed ./$write_dev $disk_a
[2022-05-07 10:15:29] ./case.sh: line 391: 1336 Killed ./$write_dev $disk_a1
[2022-05-07 10:15:34] ./case.sh: line 408: 1355 Killed ./$write_dev $disk_a2
[2022-05-07 10:15:35] fd 3
[2022-05-07 10:15:39] ./case.sh: line 425: 1374 Killed ./$excl_dev $disk_a2
[2022-05-07 10:15:40] [root@localhost test]# cat log.txt
[2022-05-07 10:15:46] IREQ02740492 test
[2022-05-07 10:15:46] ------ case1 ------
[2022-05-07 10:15:46] [ 39.675328] VFS: Open an exclusive opened block device for write sda1. current [986 test_write]. parent [976 case.sh]
[2022-05-07 10:15:46] ------ case2 ------
[2022-05-07 10:15:46] [ 45.728277] VFS: Open an exclusive opened block device for write sda. current [1008 test_write]. parent [976 case.sh]
[2022-05-07 10:15:46] ------ case3 ------
[2022-05-07 10:15:46] [ 51.782560] VFS: Open an write opened block device exclusively sda1. current [1033 test_excl]. parent [976 case.sh]
[2022-05-07 10:15:46] ------ case4 ------
[2022-05-07 10:15:46] [ 57.842489] VFS: Open an write opened block device exclusively sda. current [1055 test_excl]. parent [976 case.sh]
[2022-05-07 10:15:46] ------ case5 ------
[2022-05-07 10:15:46] [ 63.901526] VFS: Open an exclusive opened block device for write sda1. current [1080 test_write]. parent [976 case.sh]
[2022-05-07 10:15:46] ------ case6 ------
[2022-05-07 10:15:46] [ 69.959240] VFS: Open an exclusive opened block device for write sda. current [1102 test_write]. parent [976 case.sh]
[2022-05-07 10:15:46] ------ case7 ------
[2022-05-07 10:15:46] [ 78.016171] VFS: Open an write opened block device exclusively sda1. current [1127 test_excl]. parent [976 case.sh]
[2022-05-07 10:15:46] ------ case8 ------
[2022-05-07 10:15:46] [ 90.083928] VFS: Open an write opened block device exclusively sda. current [1152 test_excl]. parent [976 case.sh]
[2022-05-07 10:15:46] ------ case9 ------
[2022-05-07 10:15:46] warning message should be NULL
[2022-05-07 10:15:46] ------ case10 ------
[2022-05-07 10:15:46] warning message should be NULL
[2022-05-07 10:15:46] ------ case11 ------
[2022-05-07 10:15:46] warning message should be NULL
[2022-05-07 10:15:46] [ 110.298701] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
[2022-05-07 10:15:46] [ 111.315643] EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: (null)
[2022-05-07 10:15:46] ------ case12-1 ------
[2022-05-07 10:15:46] warning message should be NULL
[2022-05-07 10:15:46] [ 114.358906] EXT4-fs (sdb): mounted filesystem with ordered data mode. Opts: (null)
[2022-05-07 10:15:46] ------ case12-2 ------
[2022-05-07 10:15:46] [ 116.370593] VFS: Open an exclusive opened block device for write sdb. current [1232 test_write]. parent [976 case.sh]
[2022-05-07 10:15:46] ------ case12-3 ------
[2022-05-07 10:15:46] [ 118.408899] VFS: Open an write opened block device exclusively sdb. current [1244 mount]. parent [976 case.sh]
[2022-05-07 10:15:46] [ 118.410750] EXT4-fs (sdb): mounted filesystem with ordered data mode. Opts: (null)
[2022-05-07 10:15:46] ------ case13 ------
[2022-05-07 10:15:46] [ 121.607371] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
[2022-05-07 10:15:46] [ 122.611286] VFS: Open an exclusive opened block device for write sda. current [1261 test_write]. parent [976 case.sh]
[2022-05-07 10:15:46] ------ case14 ------
[2022-05-07 10:15:46] [ 125.637810] VFS: Open an exclusive opened block device for write sda1. current [1276 test_write]. parent [976 case.sh]
[2022-05-07 10:15:46] ------ case15 ------
[2022-05-07 10:15:46] warning message should be NULL
[2022-05-07 10:15:46] ------ case16 ------
[2022-05-07 10:15:46] warning message should be NULL
[2022-05-07 10:15:46] ------ case17 ------
[2022-05-07 10:15:46] [ 137.764598] VFS: Open an write opened block device exclusively sda1. current [1322 mount]. parent [976 case.sh]
[2022-05-07 10:15:46] [ 137.772829] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
[2022-05-07 10:15:46] ------ case18 ------
[2022-05-07 10:15:46] [ 142.829758] VFS: Open an write opened block device exclusively sda1. current [1344 mount]. parent [976 case.sh]
[2022-05-07 10:15:46] [ 142.832340] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
[2022-05-07 10:15:46] ------ case19 ------
[2022-05-07 10:15:46] warning message should be NULL
[2022-05-07 10:15:46] [ 147.893453] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
[2022-05-07 10:15:46] ------ case20 ------
[2022-05-07 10:15:46] warning message should be NULL
[2022-05-07 10:15:46] [ 152.955578] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
[2022-05-07 10:15:46] [root@localhost test]# ./test_read /dev/sda1 &
[2022-05-07 10:16:14] [1] 1395
[2022-05-07 10:16:14] [root@localhost test]# ./test_read /dev/sda2 &
[2022-05-07 10:16:15] [2] 1396
[2022-05-07 10:16:15] [root@localhost test]# ./test_read /dev/sda3 &
[2022-05-07 10:16:15] [3] 1397
[2022-05-07 10:16:15] [root@localhost test]# ./case.sh
[2022-05-07 10:16:16] fd 3
[2022-05-07 10:16:21] ./case.sh: line 93: 1408 Killed ./$write_dev $disk_a1
[2022-05-07 10:16:22] ./case.sh: line 95: 1400 Killed ./$excl_dev $disk_a1
[2022-05-07 10:16:22] fd 3
[2022-05-07 10:16:27] ./case.sh: line 111: 1431 Killed ./$write_dev $disk_a
[2022-05-07 10:16:28] ./case.sh: line 113: 1423 Killed ./$excl_dev $disk_a
[2022-05-07 10:16:30] fd 3
[2022-05-07 10:16:33] ./case.sh: line 129: 1448 Killed ./$write_dev $disk_a1
[2022-05-07 10:16:34] ./case.sh: line 131: 1456 Killed ./$excl_dev $disk_a1
[2022-05-07 10:16:36] fd 3
[2022-05-07 10:16:39] ./case.sh: line 147: 1470 Killed ./$write_dev $disk_a
[2022-05-07 10:16:40] ./case.sh: line 149: 1478 Killed ./$excl_dev $disk_a
[2022-05-07 10:16:40] fd 3
[2022-05-07 10:16:46] ./case.sh: line 165: 1503 Killed ./$write_dev $disk_a1
[2022-05-07 10:16:47] ./case.sh: line 167: 1495 Killed ./$excl_dev $disk_a
[2022-05-07 10:16:47] fd 3
[2022-05-07 10:16:52] ./case.sh: line 183: 1525 Killed ./$write_dev $disk_a
[2022-05-07 10:16:53] ./case.sh: line 185: 1517 Killed ./$excl_dev $disk_a1
[2022-05-07 10:16:57] fd 3
[2022-05-07 10:17:03] ./case.sh: line 201: 1542 Killed ./$write_dev $disk_a
[2022-05-07 10:17:05] ./case.sh: line 203: 1550 Killed ./$excl_dev $disk_a1
[2022-05-07 10:17:09] fd 3
[2022-05-07 10:17:15] ./case.sh: line 219: 1567 Killed ./$write_dev $disk_a1
[2022-05-07 10:17:17] ./case.sh: line 221: 1575 Killed ./$excl_dev $disk_a
[2022-05-07 10:17:19] fd 3
[2022-05-07 10:17:22] ./case.sh: line 238: 1589 Killed ./$write_dev $disk_a2
[2022-05-07 10:17:23] ./case.sh: line 240: 1597 Killed ./$excl_dev $disk_a1
[2022-05-07 10:17:23] fd 3
[2022-05-07 10:17:28] ./case.sh: line 257: 1619 Killed ./$write_dev $disk_a1
[2022-05-07 10:17:29] ./case.sh: line 259: 1611 Killed ./$excl_dev $disk_a2
[2022-05-07 10:17:40] ./case.sh: line 309: 1655 Killed ./$write_dev $disk_b
[2022-05-07 10:17:45] ./case.sh: line 322: 1684 Killed ./$write_dev $disk_a
[2022-05-07 10:17:48] ./case.sh: line 333: 1699 Killed ./$write_dev $disk_a1
[2022-05-07 10:17:51] ./case.sh: line 345: 1711 Killed ./$write_dev $disk_a2
[2022-05-07 10:17:51] fd 3
[2022-05-07 10:17:54] ./case.sh: line 357: 1723 Killed ./$excl_dev $disk_a2
[2022-05-07 10:17:59] ./case.sh: line 375: 1737 Killed ./$write_dev $disk_a
[2022-05-07 10:18:04] ./case.sh: line 391: 1759 Killed ./$write_dev $disk_a1
[2022-05-07 10:18:09] ./case.sh: line 408: 1778 Killed ./$write_dev $disk_a2
[2022-05-07 10:18:10] fd 3
[2022-05-07 10:18:14] ./case.sh: line 425: 1797 Killed ./$excl_dev $disk_a2
[2022-05-07 10:18:15] [root@localhost test]# ./case.shtest_read /dev/sda3 &21cat log.txt ./case.shcat log.txt
[2022-05-07 10:36:22] IREQ02740492 test
[2022-05-07 10:36:22] ------ case1 ------
[2022-05-07 10:36:22] [ 193.787726] VFS: Open an exclusive opened block device for write sda1. current [1408 test_write]. parent [1398 case.sh]
[2022-05-07 10:36:22] ------ case2 ------
[2022-05-07 10:36:22] [ 199.923764] VFS: Open an exclusive opened block device for write sda. current [1431 test_write]. parent [1398 case.sh]
[2022-05-07 10:36:22] ------ case3 ------
[2022-05-07 10:36:22] [ 206.068750] VFS: Open an write opened block device exclusively sda1. current [1456 test_excl]. parent [1398 case.sh]
[2022-05-07 10:36:22] ------ case4 ------
[2022-05-07 10:36:22] [ 212.212032] VFS: Open an write opened block device exclusively sda. current [1478 test_excl]. parent [1398 case.sh]
[2022-05-07 10:36:22] ------ case5 ------
[2022-05-07 10:36:22] [ 218.368757] VFS: Open an exclusive opened block device for write sda1. current [1503 test_write]. parent [1398 case.sh]
[2022-05-07 10:36:22] ------ case6 ------
[2022-05-07 10:36:22] [ 224.519315] VFS: Open an exclusive opened block device for write sda. current [1525 test_write]. parent [1398 case.sh]
[2022-05-07 10:36:22] ------ case7 ------
[2022-05-07 10:36:22] [ 232.653031] VFS: Open an write opened block device exclusively sda1. current [1550 test_excl]. parent [1398 case.sh]
[2022-05-07 10:36:22] ------ case8 ------
[2022-05-07 10:36:22] [ 244.775005] VFS: Open an write opened block device exclusively sda. current [1575 test_excl]. parent [1398 case.sh]
[2022-05-07 10:36:22] ------ case9 ------
[2022-05-07 10:36:22] warning message should be NULL
[2022-05-07 10:36:22] ------ case10 ------
[2022-05-07 10:36:22] warning message should be NULL
[2022-05-07 10:36:22] ------ case11 ------
[2022-05-07 10:36:22] warning message should be NULL
[2022-05-07 10:36:22] [ 265.104604] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
[2022-05-07 10:36:22] [ 266.123447] EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: (null)
[2022-05-07 10:36:22] ------ case12-1 ------
[2022-05-07 10:36:22] warning message should be NULL
[2022-05-07 10:36:22] [ 269.188342] EXT4-fs (sdb): mounted filesystem with ordered data mode. Opts: (null)
[2022-05-07 10:36:22] ------ case12-2 ------
[2022-05-07 10:36:22] [ 271.202947] VFS: Open an exclusive opened block device for write sdb. current [1655 test_write]. parent [1398 case.sh]
[2022-05-07 10:36:22] ------ case12-3 ------
[2022-05-07 10:36:22] [ 273.307249] VFS: Open an write opened block device exclusively sdb. current [1667 mount]. parent [1398 case.sh]
[2022-05-07 10:36:22] [ 273.314237] EXT4-fs (sdb): mounted filesystem with ordered data mode. Opts: (null)
[2022-05-07 10:36:22] ------ case13 ------
[2022-05-07 10:36:22] [ 276.410380] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
[2022-05-07 10:36:22] [ 277.422434] VFS: Open an exclusive opened block device for write sda. current [1684 test_write]. parent [1398 case.sh]
[2022-05-07 10:36:22] ------ case14 ------
[2022-05-07 10:36:22] [ 280.493676] VFS: Open an exclusive opened block device for write sda1. current [1699 test_write]. parent [1398 case.sh]
[2022-05-07 10:36:22] ------ case15 ------
[2022-05-07 10:36:22] warning message should be NULL
[2022-05-07 10:36:22] ------ case16 ------
[2022-05-07 10:36:22] warning message should be NULL
[2022-05-07 10:36:22] ------ case17 ------
[2022-05-07 10:36:22] [ 292.808501] VFS: Open an write opened block device exclusively sda1. current [1745 mount]. parent [1398 case.sh]
[2022-05-07 10:36:22] [ 292.814189] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
[2022-05-07 10:36:22] ------ case18 ------
[2022-05-07 10:36:22] [ 297.954676] VFS: Open an write opened block device exclusively sda1. current [1767 mount]. parent [1398 case.sh]
[2022-05-07 10:36:22] [ 297.973789] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
[2022-05-07 10:36:22] ------ case19 ------
[2022-05-07 10:36:22] warning message should be NULL
[2022-05-07 10:36:22] [ 303.140764] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
[2022-05-07 10:36:22] ------ case20 ------
[2022-05-07 10:36:22] warning message should be NULL
[2022-05-07 10:36:22] [ 308.265231] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
[2022-05-07 10:36:22] [root@localhost test]# jobs
[2022-05-07 10:36:25] [1] Running ./test_read /dev/sda1 &
[2022-05-07 10:36:25] [2]- Running ./test_read /dev/sda2 &
[2022-05-07 10:36:25] [3]+ Running ./test_read /dev/sda3 &
[2022-05-07 10:36:25] [root@localhost test]# fg