/home/dev/sdb1btrfsパーティションのマウントに問題があります。roUSBスティックから起動してスキャンを実行し、インストール可能であることを確認してもインストールされますrw。ro「実際の」システムから起動すると、なぜまだインストールされますか？私のfstabラインは次のようになります
UUID=ba093e47-a5d2-4753-b39e-64413066d9c8 /home btrfs defaults,subvol=/ 0 2
dmesg見せてください：
[ 36.655791] BTRFS: error (device sdb1: state A) in __btrfs_free_extent:3053: errno=-117 Filesystem corrupted
[ 36.655795] BTRFS info (device sdb1: state EA): forced readonly
[ 36.655796] BTRFS error (device sdb1: state EA): failed to run delayed ref for logical 574194106368 num_bytes 16384 type 176 action 2 ref_mod 1: -117
[ 36.655799] BTRFS: error (device sdb1: state EA) in btrfs_run_delayed_refs:2127: errno=-117 Filesystem corrupted
[ 50.043538] BTRFS warning (device sdb1: state EA): csum failed root 1936 ino 7242 off 1142784 csum 0xa13863de expected csum 0xa13843de mirror 1
[ 50.043553] BTRFS error (device sdb1: state EA): bdev /dev/sdb1 errs: wr 0, rd 0, flush 0, corrupt 992, gen 0
[ 50.058816] BTRFS warning (device sdb1: state EA): csum failed root 1936 ino 7242 off 1142784 csum 0xa13863de expected csum 0xa13843de mirror 1
[ 50.058828] BTRFS error (device sdb1: state EA): bdev /dev/sdb1 errs: wr 0, rd 0, flush 0, corrupt 993, gen 0
[ 50.059196] BTRFS warning (device sdb1: state EA): csum failed root 1936 ino 7242 off 1142784 csum 0xa13863de expected csum 0xa13843de mirror 1
[ 50.059199] BTRFS error (device sdb1: state EA): bdev /dev/sdb1 errs: wr 0, rd 0, flush 0, corrupt 994, gen 0
私は走っていますFedora 38。
修正する
ライブシステム（Fedora 36）で実行して、btrfs check /dev/sdb1次のようにします。
$ sudo btrfs check /dev/sdb1
Opening filesystem to check...
Checking filesystem on /dev/sdb1
UUID: ba093e47-a5d2-4753-b39e-64413066d9c8
[1/7] checking root items
[2/7] checking extents
[3/7] checking free space cache
[4/7] checking fs roots
[5/7] checking only csums items (without verifying data)
[6/7] checking root refs
[7/7] checking quota groups skipped (not enabled on this FS)
found 890685730816 bytes used, no error found
total csum bytes: 865299716
total tree bytes: 3958702080
total fs tree bytes: 2745729024
total extent tree bytes: 193478656
btree space waste bytes: 706285981
file data blocks allocated: 2916973436928
referenced 946788216832
# smartctl -a /dev/sdb1
smartctl 7.3 2022-02-28 r5338 [x86_64-linux-5.17.5-300.fc36.x86_64] (local build)
Copyright (C) 2002-22, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Samsung based SSDs
Device Model: Samsung SSD 860 EVO 1TB
Serial Number: S599NE0M906370Y
LU WWN Device Id: 5 002538 e0990fd94
Firmware Version: RVT03B6Q
User Capacity: 1,000,204,886,016 bytes [1.00 TB]
Sector Size: 512 bytes logical/physical
Rotation Rate: Solid State Device
Form Factor: 2.5 inches
TRIM Command: Available, deterministic, zeroed
Device is: In smartctl database 7.3/5319
ATA Version is: ACS-4 T13/BSR INCITS 529 revision 5
SATA Version is: SATA 3.2, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is: Wed Aug 9 23:29:31 2023 EDT
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: (0x00) Offline data collection activity
was never started.
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: ( 0) seconds.
Offline data collection
capabilities: (0x53) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
No 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: ( 85) 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: 1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
9 Power_On_Hours 0x0032 098 098 000 Old_age Always - 7874
12 Power_Cycle_Count 0x0032 096 096 000 Old_age Always - 3676
177 Wear_Leveling_Count 0x0013 097 097 000 Pre-fail Always - 39
179 Used_Rsvd_Blk_Cnt_Tot 0x0013 100 100 010 Pre-fail Always - 0
181 Program_Fail_Cnt_Total 0x0032 100 100 010 Old_age Always - 0
182 Erase_Fail_Count_Total 0x0032 100 100 010 Old_age Always - 0
183 Runtime_Bad_Block 0x0013 100 100 010 Pre-fail Always - 0
187 Uncorrectable_Error_Cnt 0x0032 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0032 071 049 000 Old_age Always - 29
195 ECC_Error_Rate 0x001a 200 200 000 Old_age Always - 0
199 CRC_Error_Count 0x003e 100 100 000 Old_age Always - 0
235 POR_Recovery_Count 0x0012 099 099 000 Old_age Always - 199
241 Total_LBAs_Written 0x0032 099 099 000 Old_age Always - 82270594760
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
No self-tests have been logged. [To run self-tests, use: smartctl -t]
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
256 0 65535 Read_scanning was never started
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.
アップデート2
btrfsライブシステムで他のパーティション（実際には私のシステムのルートパーティション）を確認した結果、次のような結果が出ました。
# btrfs check /dev/sda3
Opening filesystem to check...
Checking filesystem on /dev/sda3
UUID: c8ff2d36-e51d-410e-b4f5-64b0b0f4a331
[1/7] checking root items
[2/7] checking extents
data backref 2606956544 root 257 owner 607657 offset 0 num_refs 0 not found in extent tree
incorrect local backref count on 2606956544 root 257 owner 607657 offset 0 found 1 wanted 0 back 0x560968e1b9e0
incorrect local backref count on 2606956544 root 257 owner 615849 offset 0 found 0 wanted 1 back 0x560968134cf0
backref disk bytenr does not match extent record, bytenr=2606956544, ref bytenr=0
backpointer mismatch on [2606956544 8192]
ERROR: errors found in extent allocation tree or chunk allocation
[3/7] checking free space tree
[4/7] checking fs roots
[5/7] checking only csums items (without verifying data)
[6/7] checking root refs
[7/7] checking quota groups skipped (not enabled on this FS)
found 29946847232 bytes used, error(s) found
total csum bytes: 27541272
total tree bytes: 1149894656
total fs tree bytes: 1045790720
total extent tree bytes: 65536000
btree space waste bytes: 236775382
file data blocks allocated: 42231439360
referenced 61500862464
何らかの理由でこのパーティションに問題があり、/dev/sdb1正しくインストールされていないようです。変だが…
# smartctl -a /dev/sda
smartctl 7.3 2022-02-28 r5338 [x86_64-linux-5.17.5-300.fc36.x86_64] (local build)
Copyright (C) 2002-22, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Samsung based SSDs
Device Model: Samsung SSD 860 EVO 1TB
Serial Number: S5B3NR0NB18446P
LU WWN Device Id: 5 002538 e30b15691
Firmware Version: RVT04B6Q
User Capacity: 1,000,204,886,016 bytes [1.00 TB]
Sector Size: 512 bytes logical/physical
Rotation Rate: Solid State Device
Form Factor: 2.5 inches
TRIM Command: Available, deterministic, zeroed
Device is: In smartctl database 7.3/5319
ATA Version is: ACS-4 T13/BSR INCITS 529 revision 5
SATA Version is: SATA 3.2, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is: Wed Aug 9 23:42:26 2023 EDT
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: (0x00) Offline data collection activity
was never started.
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: ( 0) seconds.
Offline data collection
capabilities: (0x53) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
No 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: ( 85) 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: 1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
9 Power_On_Hours 0x0032 098 098 000 Old_age Always - 5877
12 Power_Cycle_Count 0x0032 097 097 000 Old_age Always - 2778
177 Wear_Leveling_Count 0x0013 099 099 000 Pre-fail Always - 11
179 Used_Rsvd_Blk_Cnt_Tot 0x0013 100 100 010 Pre-fail Always - 0
181 Program_Fail_Cnt_Total 0x0032 100 100 010 Old_age Always - 0
182 Erase_Fail_Count_Total 0x0032 100 100 010 Old_age Always - 0
183 Runtime_Bad_Block 0x0013 100 100 010 Pre-fail Always - 0
187 Uncorrectable_Error_Cnt 0x0032 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0032 072 051 000 Old_age Always - 28
195 ECC_Error_Rate 0x001a 200 200 000 Old_age Always - 0
199 CRC_Error_Count 0x003e 100 100 000 Old_age Always - 0
235 POR_Recovery_Count 0x0012 099 099 000 Old_age Always - 211
241 Total_LBAs_Written 0x0032 099 099 000 Old_age Always - 17129640751
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
No self-tests have been logged. [To run self-tests, use: smartctl -t]
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.
私は電話しますかbtrfs check --repair /dev/sda？
アップデート3
上記のコマンドを実行した後、エラーが修正されたようです。
# btrfs check /dev/sda3
Opening filesystem to check...
Checking filesystem on /dev/sda3
UUID: c8ff2d36-e51d-410e-b4f5-64b0b0f4a331
[1/7] checking root items
[2/7] checking extents
[3/7] checking free space tree
[4/7] checking fs roots
[5/7] checking only csums items (without verifying data)
[6/7] checking root refs
[7/7] checking quota groups skipped (not enabled on this FS)
found 29946847232 bytes used, no error found
total csum bytes: 27541272
total tree bytes: 1149894656
total fs tree bytes: 1045790720
total extent tree bytes: 65536000
btree space waste bytes: 236775382
file data blocks allocated: 42231439360
referenced 61500862464
システムを起動すると、私の/home partiution finally got mountedrw`が再び表示されます。はい！奇妙な質問ですが、何が起こるのか気になります...
このように、システムが起動してから1分後、パーティションはro再びモードに入りました。
$ mount | grep home
/dev/sdb1 on /home type btrfs (ro,relatime,seclabel,ssd,discard=async,space_cache,subvolid=5,subvol=/)
ライブUSBから再起動しましたが、今、両方のパーティションは大丈夫だと思います。
# btrfs check /dev/sdb1
Opening filesystem to check...
Checking filesystem on /dev/sdb1
UUID: ba093e47-a5d2-4753-b39e-64413066d9c8
[1/7] checking root items
[2/7] checking extents
[3/7] checking free space cache
[4/7] checking fs roots
[5/7] checking only csums items (without verifying data)
[6/7] checking root refs
[7/7] checking quota groups skipped (not enabled on this FS)
found 890685755392 bytes used, no error found
total csum bytes: 865299740
total tree bytes: 3958702080
total fs tree bytes: 2745729024
total extent tree bytes: 193478656
btree space waste bytes: 706284856
file data blocks allocated: 2916973461504
referenced 946788241408
[root@localhost-live liveuser]# btrfs check /dev/sda3
Opening filesystem to check...
Checking filesystem on /dev/sda3
UUID: c8ff2d36-e51d-410e-b4f5-64b0b0f4a331
[1/7] checking root items
[2/7] checking extents
[3/7] checking free space tree
[4/7] checking fs roots
[5/7] checking only csums items (without verifying data)
[6/7] checking root refs
[7/7] checking quota groups skipped (not enabled on this FS)
found 29930229760 bytes used, no error found
total csum bytes: 27525076
total tree bytes: 1149861888
total fs tree bytes: 1045872640
total extent tree bytes: 65437696
btree space waste bytes: 236752423
file data blocks allocated: 41929781248
referenced 61485907968
私のホームパーティションは、ログイン画面にあるときにマウントされ、rwPlasmaにログインしている間だけマウントされているようですro。実行すると、次$ journalctl | grep -i btrfsのような多くのメッセージが表示されます。
Aug 09 21:50:14 DesktopRon kernel: RIP: 0010:__btrfs_free_extent+0xb26/0x11a0
Aug 09 21:50:14 DesktopRon kernel: ? __btrfs_free_extent+0xb26/0x11a0
Aug 09 21:50:14 DesktopRon kernel: ? __btrfs_free_extent+0xb26/0x11a0
Aug 09 21:50:14 DesktopRon kernel: ? __btrfs_free_extent+0xb26/0x11a0
Aug 09 21:50:14 DesktopRon kernel: ? __btrfs_free_extent+0xb26/0x11a0
Aug 09 21:50:14 DesktopRon kernel: __btrfs_run_delayed_refs+0x7a2/0x11d0
Aug 09 21:50:14 DesktopRon kernel: btrfs_run_delayed_refs+0x59/0x200
Aug 09 21:50:14 DesktopRon kernel: ? btrfs_reduce_alloc_profile+0x8c/0x180
Aug 09 21:50:14 DesktopRon kernel: btrfs_preempt_reclaim_metadata_space+0x97/0x1c0
Aug 09 21:50:14 DesktopRon kernel: BTRFS: error (device sdb1: state A) in __btrfs_free_extent:3053: errno=-117 Filesystem corrupted
Aug 09 21:50:14 DesktopRon kernel: BTRFS info (device sdb1: state EA): forced readonly
Aug 09 21:50:14 DesktopRon kernel: BTRFS error (device sdb1: state EA): failed to run delayed ref for logical 574194106368 num_bytes 16384 type 176 action 2 ref_mod 1: -117
Aug 09 21:50:14 DesktopRon kernel: BTRFS: error (device sdb1: state EA) in btrfs_run_delayed_refs:2127: errno=-117 Filesystem corrupted
Aug 09 21:50:19 DesktopRon abrt-notification[3148]: System encountered a non-fatal error in __btrfs_free_extent()
Aug 09 21:50:20 DesktopRon kernel: BTRFS warning (device sdb1: state EA): csum failed root 1936 ino 7242 off 1142784 csum 0xa13863de expected csum 0xa13843de mirror 1
Aug 09 21:50:20 DesktopRon kernel: BTRFS error (device sdb1: state EA): bdev /dev/sdb1 errs: wr 0, rd 0, flush 0, corrupt 992, gen 0
Aug 09 21:50:20 DesktopRon kernel: BTRFS warning (device sdb1: state EA): csum failed root 1936 ino 7242 off 1142784 csum 0xa13863de expected csum 0xa13843de mirror 1
Aug 09 21:50:20 DesktopRon kernel: BTRFS error (device sdb1: state EA): bdev /dev/sdb1 errs: wr 0, rd 0, flush 0, corrupt 993, gen 0
Aug 09 21:50:20 DesktopRon kernel: BTRFS warning (device sdb1: state EA): csum failed root 1936 ino 7242 off 1142784 csum 0xa13863de expected csum 0xa13843de mirror 1
Aug 09 21:50:20 DesktopRon kernel: BTRFS error (device sdb1: state EA): bdev /dev/sdb1 errs: wr 0, rd 0, flush 0, corrupt 994, gen 0
起動時にパーティションマウントモードをリセットするにはどうすればよいですかrw？
答え1
btrfs check /dev/sdb1根本原因を明らかにすることをお勧めします。マウント解除されたファイルシステムで
答え2
さて、私は私の問題が私の直感のために起こったことを見つけたようですsyncthing。そして私の手には明らかに方向を指すことができる論理的なものはありません。問題の詳細な原因が何であるかを知りたいです。誰でも私を助けることができれば本当に良いようです！
無効にすると、パフォーマンスが向上しただけで問題が解決していないことがわかりましたsyncthing。つまり、まだ解決されていません！