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#1 2020-01-20 06:58:20

lavio
Member
Registered: 2019-03-01
Posts: 6

Hard drive keeps unmounting: Buffer I/O error (async page read)

I have a couple of hard drives with mergefs and recently one of the hard drive keeps unmonting automatically. I've tried fsck and nothing changed. I've tried changing the cables and using different ports but the problem still persists. smartctl says the hard drive is okay, i think. The 8TB hard drive has the problem.

dmesg output, journal

fstab

  GNU nano 4.5                                          /etc/fstab                                                     
# Static information about the filesystems.
# See fstab(5) for details.

# <file system> <dir> <type> <options> <dump> <pass>
# /dev/sde2
UUID=b5b6ad81-be95-4ae9-818d-da189088c9b7       /               ext4            rw,relatime     0 1

# /dev/sde1
UUID=0DCB-CE5F          /efi            vfat            rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso88>

# /dev/sdb1 (Seagate External, ntfs, 1TB)
UUID=BC122F40122EFED0   /mnt/disk1      ntfs-3g         defaults,uid=1000,gid=1000,fmask=0002,dmask=0002        0 0

#/dev/sda1 (ST100LM035 Internal, ext4, 1TB)
UUID=7462b331-dec7-44d1-8e8f-9500dacc9a57       /mnt/disk2      ext4    defaults 0 0

#/dev/sdc1 (WDC_WD10 Internal , ext4, 1TB)
UUID=0f2bb2fd-9148-44cb-a52e-8c4e00e46f86       /mnt/disk3      ext4    defaults 0 0

#/dev/sde1 (Hitachi Internal, ext4, 300GB)
UUID=bd8de161-a70c-4c2f-a0d4-78c862150fea       /mnt/disk4      ext4    defaults 0 0

#/dev/sdf1 (SSHD Internal, ext4, 500GB)
UUID=8a21d5fb-22d8-4254-af24-3c97a5f45bb9       /mnt/disk5      ext4    defaults 0 0

#/dev/sdf1 (WD My Book External, ext4, 7.3TB)
UUID=fb16dfcc-9b21-473c-b985-f4217b227134       /mnt/disk6      ext4    defaults 0 1

#mergerfs
/mnt/disk*      /mnt/storage    fuse.mergerfs defaults,direct_io,allow_other,minfreespace=4G,fsname=mergerfs,uid=1000,>

#NFS Share
/mnt/storage /srv/nfs/media  none   bind   0   0

smartctl -a

smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.1-arch1-1] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     WDC HGST Ultrastar He10
Device Model:     WDC WD80EZAZ-11TDBA0
Serial Number:    7HKDVBWF
LU WWN Device Id: 5 000cca 257f01e01
Firmware Version: 83.H0A83
User Capacity:    8,001,563,222,016 bytes [8.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5400 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-2, ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Mon Jan 20 12:02:01 2020 IST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x80)	Offline data collection activity
					was never started.
					Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0)	The previous self-test routine completed
					without error or no self-test has ever 
					been run.
Total time to complete Offline 
data collection: 		(   93) seconds.
Offline data collection
capabilities: 			 (0x5b) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					Offline surface scan supported.
					Self-test supported.
					No Conveyance Self-test supported.
					Selective Self-test supported.
SMART capabilities:            (0x0003)	Saves SMART data before entering
					power-saving mode.
					Supports SMART auto save timer.
Error logging capability:        (0x01)	Error logging supported.
					General Purpose Logging supported.
Short self-test routine 
recommended polling time: 	 (   2) minutes.
Extended self-test routine
recommended polling time: 	 ( 972) minutes.
SCT capabilities: 	       (0x003d)	SCT Status supported.
					SCT Error Recovery Control supported.
					SCT Feature Control supported.
					SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000b   100   100   016    Pre-fail  Always       -       0
  2 Throughput_Performance  0x0004   128   128   054    Old_age   Offline      -       116
  3 Spin_Up_Time            0x0007   167   167   024    Pre-fail  Always       -       417 (Average 368)
  4 Start_Stop_Count        0x0012   100   100   000    Old_age   Always       -       566
  5 Reallocated_Sector_Ct   0x0033   100   100   005    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000a   100   100   067    Old_age   Always       -       0
  8 Seek_Time_Performance   0x0004   128   128   020    Old_age   Offline      -       18
  9 Power_On_Hours          0x0012   100   100   000    Old_age   Always       -       4913
 10 Spin_Retry_Count        0x0012   100   100   060    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       561
 22 Helium_Level            0x0023   100   100   025    Pre-fail  Always       -       100
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       749
193 Load_Cycle_Count        0x0012   100   100   000    Old_age   Always       -       749
194 Temperature_Celsius     0x0002   175   175   000    Old_age   Always       -       37 (Min/Max 21/59)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0022   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0008   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x000a   200   200   000    Old_age   Always       -       0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed without error       00%      4854         -
# 2  Short offline       Completed without error       00%      4822         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

fdisk -l

Disk /dev/sdd: 465.78 GiB, 500107861504 bytes, 976773167 sectors
Disk model: USB             
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 3EF154B1-32F3-4EE4-9A90-1305D577AE9C

Device     Start       End   Sectors   Size Type
/dev/sdd1   2048 976773133 976771086 465.8G Linux filesystem


Disk /dev/sdc: 931.53 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: WDC WD10EZEX-00K
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 9D85612B-71ED-4917-875F-6408F9A3DDD4

Device     Start        End    Sectors   Size Type
/dev/sdc1   4096 1953525134 1953521039 931.5G Linux filesystem


Disk /dev/sdb: 931.53 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: ST1000LM035-1RK1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: ECF26329-604A-4C68-9C5C-57DDAEB20893

Device     Start        End    Sectors   Size Type
/dev/sdb1   4096 1953525134 1953521039 931.5G Linux filesystem


Disk /dev/sdf: 298.9 GiB, 320072933376 bytes, 625142448 sectors
Disk model: Hitachi HDP72503
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: BBB6D00B-2F57-4A5F-9590-54A28D950775

Device     Start       End   Sectors   Size Type
/dev/sdf1   2048 625142414 625140367 298.1G Linux filesystem


Disk /dev/sdg: 223.58 GiB, 240057409536 bytes, 468862128 sectors
Disk model: SanDisk SDSSDA24
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: EC9CF2EE-4DF8-40F0-A56A-B113764D417D

Device       Start       End   Sectors   Size Type
/dev/sdg1     2048   1050623   1048576   512M EFI System
/dev/sdg2  1050624 468862094 467811471 223.1G Linux root (x86-64)


Disk /dev/sdh: 931.53 GiB, 1000204885504 bytes, 1953525167 sectors
Disk model: BUP Slim BK     
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x1cfb3ade

Device     Boot Start        End    Sectors   Size Id Type
/dev/sdh1  *     2048 1953525166 1953523119 931.5G  7 HPFS/NTFS/exFAT


Disk /dev/sdj: 7.28 TiB, 8001562869760 bytes, 15628052480 sectors
Disk model: My Book 25EE    
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: EBBB1473-DD46-4970-9870-D074F753B97A

Device     Start         End     Sectors  Size Type
/dev/sdj1   2048 15628052446 15628050399  7.3T Linux filesystem

Last edited by lavio (2020-01-20 07:00:35)

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#2 2020-01-20 08:09:37

Ropid
Member
Registered: 2015-03-09
Posts: 1,069

Re: Hard drive keeps unmounting: Buffer I/O error (async page read)

That SMART table looks good, the drive did not record anything suspicious I can see.

Maybe the problem was introduced by a certain kernel version? I'd try downgrading the kernel package that you used on a date where you didn't yet problems.

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#3 2020-01-20 09:27:35

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 78,068

Re: Hard drive keeps unmounting: Buffer I/O error (async page read)

Do you get I/O errors w/o mergerfs?

How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

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#4 2020-01-20 23:31:57

trapexit
Member
Registered: 2020-01-20
Posts: 1

Re: Hard drive keeps unmounting: Buffer I/O error (async page read)

It's plausible that mergerfs is tickling an issue but it's just a userland app like any other.

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#5 2020-01-21 09:41:56

lavio
Member
Registered: 2019-03-01
Posts: 6

Re: Hard drive keeps unmounting: Buffer I/O error (async page read)

I was testing out the setup with a different kernel(LTS), it worked for like 8 hours then it started throwing errors. I'll be removing the 8TB hard drive from the mergerfs pool to test if the problem is with the mergerfs. I'll be the updating the thread with the results.

The errors in journal after working properly for some time:

Jan 21 07:35:57 archlinux systemd[1]: run-docker-runtime\x2drunc-moby-d44d0727eaf945f8666d5074ecbba2ade70640f29bc7b649122cc537f76ff508-runc.cXSRi8.mount: Succeeded.
Jan 21 07:35:59 archlinux kernel: usb 4-4: USB disconnect, device number 4
Jan 21 07:36:00 archlinux kernel: blk_update_request: I/O error, dev sde, sector 3861506504 op 0x0:(READ) flags 0x80700 phys_seg 9 prio class 0
Jan 21 07:36:00 archlinux kernel: blk_update_request: I/O error, dev sde, sector 3861506504 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Jan 21 07:36:00 archlinux kernel: blk_update_request: I/O error, dev sde, sector 3861506504 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Jan 21 07:36:00 archlinux kernel: blk_update_request: I/O error, dev sde, sector 3861506504 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Jan 21 07:36:00 archlinux kernel: blk_update_request: I/O error, dev sde, sector 3861506504 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Jan 21 07:36:00 archlinux kernel: blk_update_request: I/O error, dev sde, sector 3861506504 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Jan 21 07:36:00 archlinux kernel: blk_update_request: I/O error, dev sde, sector 3861506504 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Jan 21 07:36:00 archlinux kernel: blk_update_request: I/O error, dev sde, sector 3861506504 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Jan 21 07:36:00 archlinux kernel: blk_update_request: I/O error, dev sde, sector 3861506504 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Jan 21 07:36:00 archlinux kernel: blk_update_request: I/O error, dev sde, sector 3861506504 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Jan 21 07:36:00 archlinux systemd[1]: mnt-disk6.mount: Unit is bound to inactive unit dev-disk-by\x2duuid-fb16dfcc\x2d9b21\x2d473c\x2db985\x2df4217b227134.device, but not stopping since we tried this too often recently.
Jan 21 07:36:00 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:36:00 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:36:00 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:36:00 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:36:00 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:36:00 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:36:00 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:36:00 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:36:00 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:36:00 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:36:59 archlinux kernel: sd 13:0:0:0: [sdi] Spinning up disk...
Jan 21 07:36:59 archlinux kernel: ses 13:0:0:1: Wrong diagnostic page; asked for 1 got 8
Jan 21 07:36:59 archlinux kernel: ses 13:0:0:1: Failed to get diagnostic page 0x1
Jan 21 07:36:59 archlinux kernel: ses 13:0:0:1: Failed to bind enclosure -19
Jan 21 07:37:12 archlinux systemd[44520]: run-docker-runtime\x2drunc-moby-d44d0727eaf945f8666d5074ecbba2ade70640f29bc7b649122cc537f76ff508-runc.KEJZKh.mount: Succeeded.
Jan 21 07:37:12 archlinux systemd[1]: run-docker-runtime\x2drunc-moby-d44d0727eaf945f8666d5074ecbba2ade70640f29bc7b649122cc537f76ff508-runc.KEJZKh.mount: Succeeded.
Jan 21 07:37:12 archlinux kernel: .............
Jan 21 07:37:12 archlinux kernel: EXT4-fs error: 103 callbacks suppressed
Jan 21 07:37:12 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:37:12 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:37:12 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:37:12 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:37:12 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:37:12 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:37:12 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:37:12 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:37:12 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:37:12 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:37:16 archlinux kernel: ....ready
Jan 21 07:37:16 archlinux kernel: ....ready
Jan 21 07:37:16 archlinux kernel: sd 13:0:0:0: [sdi] Very big device. Trying to use READ CAPACITY(16).
Jan 21 07:37:16 archlinux kernel: sd 13:0:0:0: [sdi] 15628052480 512-byte logical blocks: (8.00 TB/7.28 TiB)
Jan 21 07:37:16 archlinux kernel: sd 13:0:0:0: [sdi] 4096-byte physical blocks
Jan 21 07:37:16 archlinux kernel: sd 13:0:0:0: [sdi] Write Protect is off
Jan 21 07:37:16 archlinux kernel: sd 13:0:0:0: [sdi] Mode Sense: 47 00 10 08
Jan 21 07:37:16 archlinux kernel: sd 13:0:0:0: [sdi] No Caching mode page found
Jan 21 07:37:16 archlinux kernel: sd 13:0:0:0: [sdi] Assuming drive cache: write through
Jan 21 07:37:17 archlinux kernel:  sdi: sdi1
Jan 21 07:37:17 archlinux kernel: sd 13:0:0:0: [sdi] Attached SCSI disk
Jan 21 07:37:29 archlinux kernel: EXT4-fs error: 25 callbacks suppressed
Jan 21 07:37:29 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184090625: comm mergerfs: reading directory lblock 0
Jan 21 07:37:29 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184090625: comm mergerfs: reading directory lblock 0
Jan 21 07:37:29 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184090625: comm mergerfs: reading directory lblock 0
Jan 21 07:37:29 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184090625: comm mergerfs: reading directory lblock 0
Jan 21 07:37:29 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184090625: comm mergerfs: reading directory lblock 0
Jan 21 07:37:29 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184090625: comm mergerfs: reading directory lblock 0
Jan 21 07:37:29 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184090625: comm mergerfs: reading directory lblock 0
Jan 21 07:37:29 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184090625: comm mergerfs: reading directory lblock 0
Jan 21 07:37:29 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184090625: comm mergerfs: reading directory lblock 0
Jan 21 07:37:29 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184090625: comm mergerfs: reading directory lblock 0
Jan 21 07:37:49 archlinux systemd[1]: run-docker-runtime\x2drunc-moby-d44d0727eaf945f8666d5074ecbba2ade70640f29bc7b649122cc537f76ff508-runc.ls98DU.mount: Succeeded.
Jan 21 07:37:49 archlinux systemd[44520]: run-docker-runtime\x2drunc-moby-d44d0727eaf945f8666d5074ecbba2ade70640f29bc7b649122cc537f76ff508-runc.ls98DU.mount: Succeeded.
Jan 21 07:37:55 archlinux systemd[44520]: run-docker-runtime\x2drunc-moby-10632714bdaf7082d16a2d9e2a6833fb8fbbe05e6fa7670ffcb5bef81659275a-runc.oLJYcU.mount: Succeeded.
Jan 21 07:37:55 archlinux systemd[1]: run-docker-runtime\x2drunc-moby-10632714bdaf7082d16a2d9e2a6833fb8fbbe05e6fa7670ffcb5bef81659275a-runc.oLJYcU.mount: Succeeded.
Jan 21 07:37:55 archlinux kernel: EXT4-fs error: 21 callbacks suppressed
Jan 21 07:37:55 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:37:55 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:37:55 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:37:57 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:37:57 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:37:57 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:37:57 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:37:57 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:37:58 archlinux kernel: EXT4-fs warning: 18 callbacks suppressed
Jan 21 07:37:58 archlinux kernel: EXT4-fs warning (device sde1): dx_probe:761: inode #184090633: lblock 0: comm mergerfs: error -5 reading directory block
Jan 21 07:37:58 archlinux kernel: EXT4-fs warning (device sde1): dx_probe:761: inode #184090633: lblock 0: comm mergerfs: error -5 reading directory block
Jan 21 07:37:59 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:37:59 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #2: comm mergerfs: reading directory lblock 0
Jan 21 07:38:02 archlinux kernel: EXT4-fs error: 27 callbacks suppressed
Jan 21 07:38:02 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:38:02 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:38:02 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:38:02 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:38:02 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:38:03 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:38:03 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:38:05 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:38:05 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:38:06 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:38:09 archlinux kernel: EXT4-fs error: 1 callbacks suppressed
Jan 21 07:38:09 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:38:09 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:38:10 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:38:10 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:38:11 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:38:11 archlinux kernel: EXT4-fs error (device sde1): __ext4_find_entry:1530: inode #184091549: comm mergerfs: reading directory lblock 0
Jan 21 07:38:15 archlinux kernel: usb 4-4: USB disconnect, device number 5
Jan 21 07:38:15 archlinux systemd[1]: Unmounting /mnt/disk6...
Jan 21 07:38:15 archlinux systemd[1]: mnt-disk6.mount: Mount process exited, code=exited, status=32/n/a
Jan 21 07:38:15 archlinux umount[352738]: umount: /mnt/disk6: target is busy.
Jan 21 07:38:15 archlinux systemd[1]: Failed unmounting /mnt/disk6.
Jan 21 07:38:15 archlinux umount[352739]: umount: /mnt/disk6: target is busy.
Jan 21 07:38:15 archlinux systemd[1]: mnt-disk6.mount: Unit is bound to inactive unit dev-disk-by\x2duuid-fb16dfcc\x2d9b21\x2d473c\x2db985\x2df4217b227134.device. Stopping, too.
Jan 21 07:38:15 archlinux umount[352740]: umount: /mnt/disk6: target is busy.
Jan 21 07:38:15 archlinux systemd[1]: Unmounting /mnt/disk6...
Jan 21 07:38:15 archlinux umount[352741]: umount: /mnt/disk6: target is busy.
Jan 21 07:38:15 archlinux systemd[1]: mnt-disk6.mount: Mount process exited, code=exited, status=32/n/a
Jan 21 07:38:15 archlinux systemd[1]: Failed unmounting /mnt/disk6.
Jan 21 07:38:15 archlinux systemd[1]: mnt-disk6.mount: Unit is bound to inactive unit dev-disk-by\x2duuid-fb16dfcc\x2d9b21\x2d473c\x2db985\x2df4217b227134.device. Stopping, too.

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