くだらねえ質問はここに書き込め！Part 246

[過去ﾛｸﾞ] くだらねえ質問はここに書き込め！Part 246 (1002ﾚｽ)
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469: login:Penguin [sage] 2021/12/17(金) 17:31:22.31 ID:WDpFyAGb

２つHDD接続してます

# btrfs filesystem show
Label: 'debian' uuid: cf82c300-5af6-45d6-a682-1e93b9105cae
Total devices 1 FS bytes used 25.51GiB
devid 1 size 295.90GiB used 39.07GiB path /dev/sda2

Label: 'debian' uuid: 3a396f2a-5ad7-47af-9bbd-343195f050f2
Total devices 1 FS bytes used 21.17GiB
devid 1 size 146.84GiB used 25.07GiB path /dev/sdb2

以下のごとくsdb2のみ　エラーが出て起動できません。直近に当該ディスクドライブが、ゴロンゴロンまともにスピンしませんでした。げんざいは綺麗にスピンしてます。

# dmesg
BTRFS errorのみ

[ 6576.245236] BTRFS error (device sdb2): parent transid verify failed on 577110016 wanted 1415 found 1373
[ 6576.252368] BTRFS info (device sdb2): no csum found for inode 217067 start 0
[ 6576.264856] BTRFS warning (device sdb2): csum failed root 310 ino 217067 off 0 csum 0xe2d2eae6 expected csum 0x00000000 mirror 1
[ 6576.281548] BTRFS error (device sdb2): parent transid verify failed on 577093632 wanted 1415 found 1373
[ 6584.082394] BTRFS error (device sdb2): parent transid verify failed on 577110016 wanted 1415 found 1373
[ 6584.082408] BTRFS info (device sdb2): no csum found for inode 217067 start 0
[ 6584.095117] BTRFS warning (device sdb2): csum failed root 310 ino 217067 off 0 csum 0xe2d2eae6 expected csum 0x00000000 mirror 1

http://mao.5ch.net/test/read.cgi/linux/1636203420/469

477: login:Penguin [sage] 2021/12/17(金) 18:31:28.34 ID:WDpFyAGb

# btrfs check --repair /dev/sdb2
enabling repair mode
WARNING:

Do not use --repair unless you are advised to do so by a developer
or an experienced user, and then only after having accepted that no
fsck can successfully repair all types of filesystem corruption. Eg.
some software or hardware bugs can fatally damage a volume.
The operation will start in 10 seconds.
Use Ctrl-C to stop it.
10 9 8 7 6 5 4 3 2 1
Starting repair.
Opening filesystem to check...
Checking filesystem on /dev/sdb2
UUID: 3a396f2a-5ad7-47af-9bbd-343195f050f2
[1/7] checking root items
parent transid verify failed on 579682304 wanted 1415 found 1372
parent transid verify failed on 579682304 wanted 1415 found 1372
parent transid verify failed on 579682304 wanted 1415 found 1372
Ignoring transid failure
ERROR: child eb corrupted: parent bytenr=578355200 item=136 parent level=1 child bytenr=579682304 child level=1
ERROR: failed to repair root items: Input/output error
#

http://mao.5ch.net/test/read.cgi/linux/1636203420/477

482: login:Penguin [sage] 2021/12/17(金) 22:00:46.28 ID:WDpFyAGb

# btrfs rescue chunk-recover /dev/sdb2
Scanning: DONE in dev0

We are going to rebuild the chunk tree on disk, it might destroy the old metadata on the disk, Are you sure? [y/N]: y
Chunk tree recovery aborted
#
おわた
dmesg　どうなった？

# dmesg | tail
[11570.040916] usb 6-3: Product: WN-G300UA
[11570.040920] usb 6-3: Manufacturer: I-O DATA DEVICE, INC.
[11570.040923] usb 6-3: SerialNumber: 00e04c000001
[11570.857132] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[11570.884652] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[11571.107981] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[11571.163660] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[11572.726292] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[14120.958897] sysctl (11524): drop_caches: 3
[14143.358555] Adding 2097148k swap on /dev/sda3.  Priority:-2 extents:1 across:2097148k FS
#

消えた、btrfs 関連エラー？？
ひとつだけになった？
[10621.063512] BTRFS error (device sdb2): Remounting read-write after error is not allowed

http://mao.5ch.net/test/read.cgi/linux/1636203420/482

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