我不明白为什么在访问用户的主目录、下载目录或任何其他目录时收到输入输出错误msingh，msingh是我的系统的登录帐户。
我尝试以 root 身份登录，发现一切都很好，我能够msingh从 root 用户进入用户的 home、downloads 文件夹。
我相信原因是我的磁盘出现故障，现在我以 root 身份登录，因为以 msingh 身份登录会出现问题：
dmesg 输出：
[ 2310.776265] blk_update_request: I/O error, dev sdb, sector 159993664 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
[ 2310.776280] ata5: EH complete
[ 2381.510891] STATE_INVALID_DROP: IN=enp41s0f3u2 OUT= MAC=d2:7c:5d:bd:1c:b4:36:c0:18:43:00:7f:86:dd:62:86:08:13:00:14:06:37:20:01:4d:e0:ac:19:00:00:00:00:00:01:00:0b:00:2a:24:09:40:43:21:86:03:2f:26:ea:56:59:58:62:d8:4a:01:bb:b8:12 SRC=2001:4de0:ac19:0000:0000:0001:000b:002a DST=2409:4043:2186:032f:26ea:5659:5862:d84a LEN=60 TC=40 HOPLIMIT=55 FLOWLBL=395283 PROTO=TCP SPT=443 DPT=47122 WINDOW=0 RES=0x00 RST URGP=0
[ 2604.967339] STATE_INVALID_DROP: IN=enp41s0f3u2 OUT= MAC=d2:7c:5d:bd:1c:b4:36:c0:18:43:00:7f:86:dd:62:89:9f:6a:00:14:06:37:20:01:4d:e0:ac:19:00:00:00:00:00:01:00:0b:00:3b:24:09:40:43:21:86:03:2f:26:ea:56:59:58:62:d8:4a:01:bb:ed:32 SRC=2001:4de0:ac19:0000:0000:0001:000b:003b DST=2409:4043:2186:032f:26ea:5659:5862:d84a LEN=60 TC=40 HOPLIMIT=55 FLOWLBL=630634 PROTO=TCP SPT=443 DPT=60722 WINDOW=0 RES=0x00 RST URGP=0
[ 2642.639149] ata5.00: exception Emask 0x0 SAct 0x380 SErr 0x0 action 0x0
[ 2642.639152] ata5.00: irq_stat 0x40000008
[ 2642.639154] ata5.00: failed command: READ FPDMA QUEUED
[ 2642.639158] ata5.00: cmd 60/08:38:40:4f:89/00:00:09:00:00/40 tag 7 ncq dma 4096 in
res 41/40:08:40:4f:89/00:00:09:00:00/00 Emask 0x409 (media error) <F>
[ 2642.639159] ata5.00: status: { DRDY ERR }
[ 2642.639160] ata5.00: error: { UNC }
[ 2642.900832] ata5.00: configured for UDMA/133
[ 2642.900856] sd 5:0:0:0: [sdb] tag#7 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE cmd_age=2s
[ 2642.900858] sd 5:0:0:0: [sdb] tag#7 Sense Key : Medium Error [current]
[ 2642.900859] sd 5:0:0:0: [sdb] tag#7 Add. Sense: Unrecovered read error - auto reallocate failed
[ 2642.900862] sd 5:0:0:0: [sdb] tag#7 CDB: Read(10) 28 00 09 89 4f 40 00 00 08 00
[ 2642.900865] blk_update_request: I/O error, dev sdb, sector 159993664 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
[ 2642.900891] ata5: EH complete