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#1 2023-02-23 02:14:57

brando55
Member
Registered: 2022-02-20
Posts: 5

[SOLVED] EXT4 file system error

I powered it on and then got stuck at "Starting systemd-udevd version 252.4-2" during the boot process.
Then I booted an installation ISO and mounted the ext4 partition which is /dev/sdb2 (sdb1 is the boot partition).
A few seconds after mounting, the terminal printed an error message.

32 root@archiso ~ # mount /dev/sdb2 /mnt
root@archiso ~ # [ 800.644342] EXT4-fs error (device sdb2): ext4_mb_generate_buddy:1095: group 325, block bitmap and bg descriptor inconsistenc: 3583 vs 3584 free clusters
[ 800.689092] EXT4-fs error (device sdb2): ext4_mb_generate_buddy:1095: group 1777, block bitmap and bg descriptor inconsistenc: 15 vs 16 free clusters
[ 800.704663] EXT4-fs error (device sdb2): ext4_mb_generate_buddy:1095: group 2215, block bitmap and bg descriptor inconsistenc: 1606 vs 1589 free clusters
[ 800.717117] EXT4-fs error (device sdb2): ext4_mb_generate_buddy:1095: group 3042, block bitmap and bg descriptor inconsistenc: 20625 vs 22690 free clusters
[ 800.727577] EXT4-fs error (device sdb2): ext4_mb_generate_buddy:1095: group 3560, block bitmap and bg descriptor inconsistenc: 11997 vs 11999 free clusters

From what I've seen before, this seems to be a file system error. Can this be fixed? neutral

Notes: This Arch install is about 6 months old. I keep the system up to date. The system is installed in a KingSpec 500GB SATA SSD.

Last edited by brando55 (2023-02-25 01:45:05)

CPU: Ryzen 5 2400g (wraith stealth cooler)
GPU 1: Vega 11 (in use by Linux)
GPU 2: RX570 (GPU Passthrough)
SSD: KingSpec SATA III 500GB

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#2 2023-02-23 08:42:26

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 23,835

Re: [SOLVED] EXT4 file system error

Check/post the output of 

smartctl -a /dev/sdb

, if that comes out ok (to be extra sure maybe also run a long test on it with smartctl -t long /dev/sdb and wait for the estimated time of completion to elapse before checking/posting smartctl -a again)

In the event that this comes up "safe" you can try to fsck the partition.

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#3 2023-02-24 02:18:02

brando55
Member
Registered: 2022-02-20
Posts: 5

Re: [SOLVED] EXT4 file system error

I ran the long test. This is the output of smartctl -a /dev/sdb

 
smartctl 7.3 2022-02-28 r5338 [x86_64-linux-6.1.1-arch1-1] (local build)
Copyright (C) 2002-22, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Device Model:     P3-512
Serial Number:    9111117902169
Firmware Version: U0121A0
User Capacity:    512,110,190,592 bytes [512 GB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
Form Factor:      2.5 inches
TRIM Command:     Available
Device is:        Not in smartctl database 7.3/5319
ATA Version is:   ACS-3 T13/2161-D revision 4
SATA Version is:  SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Fri Feb 24 02:15:24 2023 UTC
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:  (0x02)	Offline data collection activity
					was completed without error.
					Auto Offline Data Collection: Disabled.
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: 		(  120) seconds.
Offline data collection
capabilities: 			 (0x11) SMART execute Offline immediate.
					No Auto Offline data collection support.
					Suspend Offline collection upon new
					command.
					No Offline surface scan supported.
					Self-test supported.
					No Conveyance Self-test supported.
					No Selective Self-test supported.
SMART capabilities:            (0x0002)	Does not save 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: 	 (  10) minutes.

SMART Attributes Data Structure revision number: 1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x0032   100   100   050    Old_age   Always       -       0
  5 Reallocated_Sector_Ct   0x0032   100   100   050    Old_age   Always       -       0
  9 Power_On_Hours          0x0032   100   100   050    Old_age   Always       -       2927
 12 Power_Cycle_Count       0x0032   100   100   050    Old_age   Always       -       301
160 Unknown_Attribute       0x0032   100   100   050    Old_age   Always       -       0
161 Unknown_Attribute       0x0033   100   100   050    Pre-fail  Always       -       100
163 Unknown_Attribute       0x0032   100   100   050    Old_age   Always       -       7
164 Unknown_Attribute       0x0032   100   100   050    Old_age   Always       -       3792
165 Unknown_Attribute       0x0032   100   100   050    Old_age   Always       -       53
166 Unknown_Attribute       0x0032   100   100   050    Old_age   Always       -       2
167 Unknown_Attribute       0x0032   100   100   050    Old_age   Always       -       17
168 Unknown_Attribute       0x0032   100   100   050    Old_age   Always       -       5050
169 Unknown_Attribute       0x0032   100   100   050    Old_age   Always       -       100
175 Program_Fail_Count_Chip 0x0032   100   100   050    Old_age   Always       -       0
176 Erase_Fail_Count_Chip   0x0032   100   100   050    Old_age   Always       -       0
177 Wear_Leveling_Count     0x0032   100   100   050    Old_age   Always       -       0
178 Used_Rsvd_Blk_Cnt_Chip  0x0032   100   100   050    Old_age   Always       -       0
181 Program_Fail_Cnt_Total  0x0032   100   100   050    Old_age   Always       -       0
182 Erase_Fail_Count_Total  0x0032   100   100   050    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   050    Old_age   Always       -       83
194 Temperature_Celsius     0x0022   100   100   050    Old_age   Always       -       31
195 Hardware_ECC_Recovered  0x0032   100   100   050    Old_age   Always       -       141205
196 Reallocated_Event_Count 0x0032   100   100   050    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   100   100   050    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0032   100   100   050    Old_age   Always       -       0
199 UDMA_CRC_Error_Count    0x0032   100   100   050    Old_age   Always       -       0
232 Available_Reservd_Space 0x0032   100   100   050    Old_age   Always       -       100
241 Total_LBAs_Written      0x0030   100   100   050    Old_age   Offline      -       57141
242 Total_LBAs_Read         0x0030   100   100   050    Old_age   Offline      -       67550
245 Unknown_Attribute       0x0032   100   100   050    Old_age   Always       -       80568

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%      2926         -
# 2  Extended offline    Completed without error       00%      2926         -

Selective Self-tests/Logging not supported

CPU: Ryzen 5 2400g (wraith stealth cooler)
GPU 1: Vega 11 (in use by Linux)
GPU 2: RX570 (GPU Passthrough)
SSD: KingSpec SATA III 500GB

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#4 2023-02-24 03:44:38

skunktrader
Member
From: Brisbane, Australia
Registered: 2010-02-14
Posts: 1,582

Re: [SOLVED] EXT4 file system error

Have you run fsck on the unmounted partition yet?

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#5 2023-02-25 01:43:10

brando55
Member
Registered: 2022-02-20
Posts: 5

Re: [SOLVED] EXT4 file system error

Solved. I ran fsck manually (it would output an error message if i ran it with the -p flag).

CPU: Ryzen 5 2400g (wraith stealth cooler)
GPU 1: Vega 11 (in use by Linux)
GPU 2: RX570 (GPU Passthrough)
SSD: KingSpec SATA III 500GB

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