人们遇到服务器速度缓慢的问题。写入一个小表需要 5 秒以上，速度非常慢。我检查了 MySQL 数据库、D3 数据库和 Linux 文件系统是否损坏，没有报告任何错误。
我正在进入group descriptors corrupted!似乎dmesg由 Acronis SnapAPI 报告的情况。我已与 Acronis 联系并等待他们就此问题回复我。希望他们能为我指出腐败位置的正确方向。
另一个有问题的事情dmesg是sd 0:0:0:0: Warning! Received an indication that the operating parameters on this target have changed. The Linux SCSI layer does not automatically adjust these parameters。我不确定这个警告是什么意思。
Top 显示高负载，但没有进程成为资源消耗最多的进程。
top - 10:38:43 up 2 days, 15:40, 27 users, load average: 4.91, 3.71, 3.93
Tasks: 516 total, 1 running, 515 sleeping, 0 stopped, 0 zombie
Cpu(s): 3.2%us, 0.5%sy, 0.7%ni, 93.1%id, 2.3%wa, 0.0%hi, 0.2%si, 0.0%st
Mem: 10864732k total, 10715688k used, 149044k free, 124068k buffers
Swap: 8175612k total, 355552k used, 7820060k free, 6677196k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
15724 mysql 20 0 5460m 480m 4252 S 11.9 4.5 50:44.93 mysqld
16170 pick 20 0 1261m 166m 4376 S 10.6 1.6 20:06.69 java
17416 pick 24 4 5951m 679m 678m S 4.6 6.4 19:56.12 d3
16995 root 16 -4 6025m 797m 797m S 1.7 7.5 8:24.19 d3
CPU大部分时间处于空闲状态
[root@m10pmds autoit]# mpstat -P ALL 1 100
Linux 2.6.32-696.el6.x86_64 (m10pmds.berwickmazda.local) 10/31/2022 _x86_64_ (6 CPU)
11:06:41 AM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %idle
11:06:42 AM all 3.35 0.00 0.67 0.17 0.00 0.17 0.00 0.00 95.64
11:06:42 AM 0 7.07 0.00 2.02 0.00 0.00 0.00 0.00 0.00 90.91
11:06:42 AM 1 3.06 0.00 1.02 0.00 0.00 0.00 0.00 0.00 95.92
11:06:42 AM 2 0.99 0.00 0.99 0.00 0.00 0.00 0.00 0.00 98.02
11:06:42 AM 3 2.00 0.00 0.00 1.00 0.00 0.00 0.00 0.00 97.00
11:06:42 AM 4 2.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 97.98
11:06:42 AM 5 4.04 0.00 1.01 0.00 0.00 0.00 0.00 0.00 94.95
11:06:42 AM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %idle
11:06:43 AM all 0.67 0.00 0.17 0.00 0.00 0.00 0.00 0.00 99.16
11:06:43 AM 0 0.99 0.00 0.00 0.00 0.00 0.00 0.00 0.00 99.01
11:06:43 AM 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00
11:06:43 AM 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00
11:06:43 AM 3 1.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 98.99
11:06:43 AM 4 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00
11:06:43 AM 5 3.06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 96.94
11:06:43 AM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %idle
11:06:44 AM all 6.23 0.00 0.67 0.00 0.00 0.34 0.00 0.00 92.76
11:06:44 AM 0 6.06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 93.94
11:06:44 AM 1 8.08 0.00 1.01 0.00 0.00 1.01 0.00 0.00 89.90
11:06:44 AM 2 7.00 0.00 1.00 0.00 0.00 1.00 0.00 0.00 91.00
11:06:44 AM 3 14.14 0.00 2.02 0.00 0.00 1.01 0.00 0.00 82.83
11:06:44 AM 4 1.00 0.00 1.00 0.00 0.00 0.00 0.00 0.00 98.00
11:06:44 AM 5 0.99 0.00 0.99 0.00 0.00 0.00 0.00 0.00 98.02
内存似乎没有任何问题：
[root@m10pmds autoit]# free -h
total used free shared buffers cached
Mem: 10G 10G 137M 5.7G 121M 6.4G
-/+ buffers/cache: 3.8G 6.6G
Swap: 7.8G 347M 7.5G
iotop 没有什么特别突出的地方。每隔一两秒就会有少量读取和写入，大小范围为 kb。没有换入或换出。
Total DISK READ: 0.00 B/s | Total DISK WRITE: 49.05 K/s
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
461 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.19 % [jbd2/dm-0-8]
34317 be/4 mysql 0.00 B/s 3.77 K/s 0.00 % 0.13 % mysqld --basedir=/usr --datadir=/var/lib/~ld.pid --socket=/var/lib/mysql/mysql.sock
167595 be/4 pick 0.00 B/s 3.77 K/s 0.00 % 0.00 % java -DSTART=extra/etc/start-plus.config~/lib/jetty -jar start.jar etc/desktop.xml
161564 be/4 pick 0.00 B/s 3.77 K/s 0.00 % 0.00 % java -DSTART=extra/etc/start-plus.config~/lib/jetty -jar start.jar etc/desktop.xml
1 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % init
2 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [kthreadd]
3 rt/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [migration/0]
4 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [ksoftirqd/0]
5 rt/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [stopper/0]
6 rt/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [watchdog/0]
7 rt/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [migration/1]
8 rt/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [stopper/1]
9 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [ksoftirqd/1]
10 rt/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [watchdog/1]
11 rt/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [migration/2]
12 rt/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [stopper/2]
13 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [ksoftirqd/2]
14 rt/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [watchdog/2]
15 rt/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [migration/3]
16 rt/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [stopper/3]
进程经常处于 D 状态
[autoit@m10pmds ~]$ ps aux | awk '$8 ~ /D/'
root 224 0.0 0.0 0 0 ? D Oct28 0:00 [scsi_eh_0]
root 461 0.0 0.0 0 0 ? D Oct28 0:41 [jbd2/dm-0-8]
root 1089 0.0 0.0 0 0 ? D Oct28 0:01 [jbd2/dm-3-8]
root 1388 0.0 0.0 0 0 ? D Oct28 0:14 [flush-253:0]
root 16975 0.0 0.0 45224 480 ? D Oct28 0:43 udisks-daemon: polling /dev/sr0
pick 17425 0.0 3.1 6093852 344572 ? DN Oct28 4:35 d3 -n pick0 133 -phantom
pick 17432 0.8 36.1 6093852 3930268 ? DN Oct28 46:54 d3 -n pick0 135 -phantom
pick 17436 0.0 6.4 6093852 700592 ? DN Oct28 2:07 d3 -n pick0 136 -phantom
[autoit@m10pmds ~]$ ps aux | awk '$8 ~ /D/'
root 224 0.0 0.0 0 0 ? D Oct28 0:00 [scsi_eh_0]
root 461 0.0 0.0 0 0 ? D Oct28 0:41 [jbd2/dm-0-8]
root 1089 0.0 0.0 0 0 ? D Oct28 0:01 [jbd2/dm-3-8]
root 1093 0.0 0.0 0 0 ? D Oct28 0:11 [jbd2/dm-5-8]
root 1388 0.0 0.0 0 0 ? D Oct28 0:14 [flush-253:0]
root 16975 0.0 0.0 45224 480 ? D Oct28 0:43 udisks-daemon: polling /dev/sr0
pick 17425 0.0 3.1 6093852 344572 ? DN Oct28 4:35 d3 -n pick0 133 -phantom
pick 17432 0.8 36.1 6093852 3930268 ? DN Oct28 46:54 d3 -n pick0 135 -phantom
pick 17436 0.0 6.4 6093852 700592 ? DN Oct28 2:07 d3 -n pick0 136 -phantom
与其他进程相比，进程 17432 似乎最常处于 D 状态：
[root@m10pmds autoit]# ps aux | awk '$8 ~ /D/'
pick 17432 0.9 36.1 6093852 3930268 ? DN Oct28 50:12 d3 -n pick0 135 -phantom
wa 经常很高，但没有进程因 I/O 耗尽而突出：
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu-----
r b swpd free buff cache si so bi bo in cs us sy id wa st
1 7 357964 140112 126960 6653332 0 0 0 32 922 1365 1 0 17 82 0
0 7 357964 140112 126960 6653332 0 0 0 0 913 1499 1 0 16 83 0
0 7 357964 139988 126960 6653332 0 0 0 0 1147 1924 1 0 16 82 0
0 7 357964 140276 126960 6653332 0 0 0 0 838 1369 1 0 16 83 0
0 7 357964 140268 126960 6653332 0 0 0 0 1327 2291 2 0 16 82 0
6 1 357964 139244 126968 6653324 0 0 4 704 1446 2570 3 1 17 79 0
0 3 357964 136452 126972 6653392 0 0 567 2812 3117 3685 13 5 64 19 0
2 3 357964 136360 126972 6653352 0 0 0 0 806 1367 0 0 50 50 0
0 4 357964 136196 126972 6653352 0 0 4 0 1457 2589 1 1 34 64 0
0 5 357964 136320 126972 6653352 0 0 0 4 843 1363 2 0 21 77 0
0 6 357964 136196 126972 6653352 0 0 0 64 1197 1941 2 0 16 82 0
0 8 357964 136212 126976 6653352 0 0 0 28 1307 1385 9 0 9 82 0
0 9 357964 135824 126976 6653352 0 0 0 4 1126 1441 5 1 17 77 0
0 9 357964 135544 126976 6653356 0 0 0 0 984 1481 1 0 16 82 0
0 11 357964 135636 126976 6653360 0 0 0 8 932 1634 1 0 17 82 0
网络尚未饱和，数据传输很少。
10:54:14 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
10:54:15 AM lo 238.14 238.14 180.82 180.82 0.00 0.00 0.00
10:54:15 AM eth0 70.10 62.89 12.19 70.07 0.00 0.00 0.00
10:54:15 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
10:54:16 AM lo 318.00 318.00 303.95 303.95 0.00 0.00 0.00
10:54:16 AM eth0 39.00 29.00 6.16 49.79 0.00 0.00 0.00
10:54:16 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
10:54:17 AM lo 69.39 69.39 78.91 78.91 0.00 0.00 0.00
10:54:17 AM eth0 62.24 24.49 12.56 18.28 0.00 0.00 0.00
10:54:17 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
10:54:18 AM lo 85.00 85.00 33.37 33.37 0.00 0.00 0.00
10:54:18 AM eth0 44.00 19.00 10.68 19.43 0.00 0.00 0.00
10:54:18 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
10:54:19 AM lo 276.24 276.24 126.01 126.01 0.00 0.00 0.00
10:54:19 AM eth0 33.66 14.85 7.01 17.19 0.00 0.00 0.00
10:54:19 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
10:54:20 AM lo 67.01 67.01 27.14 27.14 0.00 0.00 0.00
10:54:20 AM eth0 42.27 22.68 9.07 24.22 0.00 0.00 0.00
10:54:20 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
10:54:21 AM lo 22.22 22.22 4.95 4.95 0.00 0.00 0.00
10:54:21 AM eth0 53.54 32.32 6.08 24.35 0.00 0.00 0.00
10:54:21 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
10:54:22 AM lo 83.00 83.00 17.89 17.89 0.00 0.00 0.00
10:54:22 AM eth0 72.00 47.00 14.69 5.85 0.00 0.00 0.00
10:54:22 AM IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s
10:54:23 AM lo 22.22 22.22 14.77 14.77 0.00 0.00 0.00
10:54:23 AM eth0 51.52 22.22 12.38 13.98 0.00 0.00 0.00
用 dd 写入似乎速度合理：
[root@m10pmds autoit]# dd if=/dev/zero of=/root/test.img count=1000
1000+0 records in
1000+0 records out
512000 bytes (512 kB) copied, 0.00214131 s, 239 MB/s
dmesg 输出：
session_init(mms,17300): OK. kdev=fd:1, bs=4096.
register_make_request(mms,17300): OK. kdev=fd:1, mq=0.
session_init(mms,17300): OK. kdev=fd:1, bs=4096.
register_make_request(mms,17300): OK. kdev=fd:1, mq=0.
session_init(mms,19415): OK. kdev=fd:1, bs=4096.
register_make_request(mms,19415): OK. kdev=fd:1, mq=0.
session_init(service_process,32258): OK. kdev=8:3, bs=4096.
register_make_request(service_process,32258): OK. kdev=8:3, mq=0.
session_init(service_process,32258): OK. kdev=fd:1, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:1, mq=0.
session_init(service_process,32258): OK. kdev=fd:1, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:1, mq=0.
session_init(service_process,32258): OK. kdev=fd:1, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:1, mq=0.
session_init(service_process,32258): OK. kdev=fd:1, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:1, mq=0.
session_init(service_process,32258): OK. kdev=fd:1, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:1, mq=0.
session_init(mms,19462): OK. kdev=fd:1, bs=4096.
register_make_request(mms,19462): OK. kdev=fd:1, mq=0.
session_init(service_process,32258): OK. kdev=fd:1, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:1, mq=0.
session_init(service_process,32258): OK. kdev=fd:1, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:1, mq=0.
session_init(service_process,32258): OK. kdev=fd:1, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:1, mq=0.
session_init(service_process,32258): OK. kdev=fd:1, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:1, mq=0.
session_init(service_process,32258): OK. kdev=fd:1, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:1, mq=0.
session_init(service_process,32258): OK. kdev=fd:1, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:1, mq=0.
session_init(service_process,32258): OK. kdev=fd:1, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:1, mq=0.
session_init(service_process,32258): OK. kdev=fd:1, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:1, mq=0.
session_init(service_process,32258): OK. kdev=fd:1, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:1, mq=0.
session_init(service_process,32258): OK. kdev=fd:1, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:1, mq=0.
sa_cache_emlist_init(service_process,32258): Note, continue with 7436 pages.
session_init(service_process,32258): OK. kdev=8:1, bs=512.
register_make_request(service_process,32258): OK. kdev=8:1, mq=0.
session_stat(service_process,32258): dev=8:1 state=6 blksize=512 mmapsize=262144
session_stat(service_process,32258): psize=409600 pstrt=2048 mshft=0 ioctls=21
session_stat(service_process,32258): bhpgs=0 bhcnt=0 abhs=8 fbhs=8 dbhs=0
session_stat(service_process,32258): gpgs=7568 ppgs=7568 emmax=10610 emmin=9947 emcur=0 cached=0
session_stat(service_process,32258): rblk=497 cblk=0 rcblk=0 rc2blk=0 mcblk=0 rwcolls=0
session_stat(service_process,32258): sync=0 async=0 aretr=0 mipr=0 iprcnt=0
session_stat(service_process,32258): mbio=0 ioctlcnt=21 ioctlpid=20
session_stat(service_process,32258): rccalls=497 maxrcdepth=0 rcdepthcnts=(0, 0, 0, 0)
session_stat(service_process,32258): flags=0
session_init(service_process,32258): OK. kdev=8:2, bs=1024.
register_make_request(service_process,32258): OK. kdev=8:2, mq=0.
session_stat(service_process,32258): dev=8:2 state=6 blksize=1024 mmapsize=262144
session_stat(service_process,32258): psize=1024000 pstrt=411648 mshft=0 ioctls=586
session_stat(service_process,32258): bhpgs=0 bhcnt=0 abhs=565 fbhs=565 dbhs=0
session_stat(service_process,32258): gpgs=10774 ppgs=10774 emmax=10610 emmin=9947 emcur=0 cached=0
session_stat(service_process,32258): rblk=9303 cblk=73 rcblk=44 rc2blk=0 mcblk=35 rwcolls=5
session_stat(service_process,32258): sync=0 async=19 aretr=0 mipr=0 iprcnt=0
session_stat(service_process,32258): mbio=0 ioctlcnt=586 ioctlpid=585
session_stat(service_process,32258): rccalls=9407 maxrcdepth=0 rcdepthcnts=(0, 0, 0, 0)
session_stat(service_process,32258): flags=0
session_init(service_process,32258): OK. kdev=fd:5, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:5, mq=0.
session_stat(service_process,32258): dev=fd:5 state=6 blksize=4096 mmapsize=262144
session_stat(service_process,32258): psize=10485760 pstrt=0 mshft=0 ioctls=2720
session_stat(service_process,32258): bhpgs=0 bhcnt=0 abhs=1734 fbhs=1734 dbhs=0
session_stat(service_process,32258): gpgs=10816 ppgs=10816 emmax=10610 emmin=9947 emcur=0 cached=0
session_stat(service_process,32258): rblk=46749 cblk=41 rcblk=42 rc2blk=0 mcblk=40 rwcolls=2
session_stat(service_process,32258): sync=0 async=41 aretr=0 mipr=0 iprcnt=0
session_stat(service_process,32258): mbio=0 ioctlcnt=2720 ioctlpid=2719
session_stat(service_process,32258): rccalls=46829 maxrcdepth=0 rcdepthcnts=(0, 0, 0, 0)
session_stat(service_process,32258): flags=0
session_init(service_process,32258): OK. kdev=fd:3, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:3, mq=0.
session_stat(service_process,32258): dev=fd:3 state=6 blksize=4096 mmapsize=262144
session_stat(service_process,32258): psize=52428800 pstrt=0 mshft=0 ioctls=4448
session_stat(service_process,32258): bhpgs=0 bhcnt=0 abhs=3939 fbhs=3939 dbhs=0
session_stat(service_process,32258): gpgs=11142 ppgs=11142 emmax=10610 emmin=9947 emcur=0 cached=0
session_stat(service_process,32258): rblk=113418 cblk=201 rcblk=202 rc2blk=0 mcblk=200 rwcolls=2
session_stat(service_process,32258): sync=0 async=201 aretr=0 mipr=0 iprcnt=0
session_stat(service_process,32258): mbio=0 ioctlcnt=4448 ioctlpid=4447
session_stat(service_process,32258): rccalls=113818 maxrcdepth=1 rcdepthcnts=(0, 0, 0, 0)
session_stat(service_process,32258): flags=0
session_init(service_process,32258): OK. kdev=fd:2, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:2, mq=0.
session_stat(service_process,32258): dev=fd:2 state=6 blksize=4096 mmapsize=262144
session_stat(service_process,32258): psize=136314880 pstrt=0 mshft=0 ioctls=4039
session_stat(service_process,32258): bhpgs=0 bhcnt=0 abhs=3722 fbhs=3722 dbhs=0
session_stat(service_process,32258): gpgs=11787 ppgs=11787 emmax=10610 emmin=9947 emcur=0 cached=0
session_stat(service_process,32258): rblk=101949 cblk=521 rcblk=522 rc2blk=0 mcblk=520 rwcolls=2
session_stat(service_process,32258): sync=0 async=521 aretr=0 mipr=0 iprcnt=0
session_stat(service_process,32258): mbio=0 ioctlcnt=4039 ioctlpid=4038
session_stat(service_process,32258): rccalls=102989 maxrcdepth=0 rcdepthcnts=(0, 0, 0, 0)
session_stat(service_process,32258): flags=0
session_init(service_process,32258): OK. kdev=fd:0, bs=4096.
register_make_request(service_process,32258): OK. kdev=fd:0, mq=0.
session_stat(service_process,32258): dev=fd:0 state=6 blksize=4096 mmapsize=262144
session_stat(service_process,32258): psize=41943040 pstrt=0 mshft=0 ioctls=18387
session_stat(service_process,32258): bhpgs=0 bhcnt=0 abhs=11746 fbhs=11746 dbhs=0
session_stat(service_process,32258): gpgs=11077 ppgs=11077 emmax=10610 emmin=9947 emcur=0 cached=0
session_stat(service_process,32258): rblk=500297 cblk=178 rcblk=179 rc2blk=0 mcblk=160 rwcolls=22
session_stat(service_process,32258): sync=0 async=178 aretr=0 mipr=0 iprcnt=0
session_stat(service_process,32258): mbio=0 ioctlcnt=18387 ioctlpid=18386
session_stat(service_process,32258): rccalls=500617 maxrcdepth=1 rcdepthcnts=(0, 0, 0, 0)
session_stat(service_process,32258): flags=0
session_init(mms,19418): OK. kdev=fd:1, bs=4096.
register_make_request(mms,19418): OK. kdev=fd:1, mq=0.
snumbdctl_open(mms,19420): OK s=ffff88013de59000
session_init(mms,19420): OK. kdev=fc:1, len=46137344 sect=512 s=ffff88013de59000 pgrp=(15482).
snumbd_open_blk(blkid,32480): Disable access (556,15482,15482)...
snumbd_open_blk(udisks-part-id,32481): Disable access (556,15482,15482)...
EXT4-fs (snumbd1d): ext4_check_descriptors: Checksum for group 128 failed (22619!=896)
EXT4-fs (snumbd1d): group descriptors corrupted!
snumbdctl_release(mms,19420): OK s=ffff88013de59000
snumbdctl_open(mms,19420): OK s=ffff88013de59000
session_init(mms,19420): OK. kdev=fc:1, len=16351232 sect=512 s=ffff88013de59000 pgrp=(15482).
snumbd_open_blk(blkid,32489): Disable access (556,15482,15482)...
snumbd_open_blk(udisks-part-id,32490): Disable access (556,15482,15482)...
snumbdctl_release(mms,19420): OK s=ffff88013de59000
storvsc: Sense Key : Unit Attention [current]
storvsc: Add. Sense: Changed operating definition
sd 0:0:0:0: Warning! Received an indication that the operating parameters on this target have changed. The Linux SCSI layer does not automatically adjust these parameters.
storvsc: Sense Key : Unit Attention [current]
storvsc: Add. Sense: Changed operating definition
sd 0:0:0:0: Warning! Received an indication that the operating parameters on this target have changed. The Linux SCSI layer does not automatically adjust these parameters.
答案1
希望您不要还在等待解决方案，但我将分享这一点：每当我的系统进入高负载状态，而进程负载没有增加时，总是由于 NFS 安装损坏。我将它们全部卸载，负载立即下降。然后我尝试再次 mount -a 它们，罪魁祸首将显示： mount.nfs: backing "system:share"