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read only: kernel: BTRFS critical (device md127): unable to find logical 6961270095872
I recently discovered that our Backup-NAS (Readynas 214) stopped accepting Backups. It seems to have become read only. Reboot didn't help.
Here's what seems to be the problem (kernel.log) :
...
Nov 02 09:19:06 BACKUPNAS01 kernel: BTRFS critical (device md127): unable to find logical 6961270095872 len 4096
Nov 02 09:19:06 BACKUPNAS01 kernel: BTRFS critical (device md127): unable to find logical 6961270095872 len 4096
Nov 02 09:19:08 BACKUPNAS01 kernel: btrfs_printk: 122 callbacks suppressed
Nov 02 09:19:08 BACKUPNAS01 kernel: BTRFS critical (device md127): unable to find logical 6961270095872 len 4096
Nov 02 09:19:08 BACKUPNAS01 kernel: BTRFS critical (device md127): unable to find logical 6961270095872 len 4096
...
Nov 02 14:55:31 BACKUPNAS01 kernel: BTRFS critical (device md127): unable to find logical 6961270095872 len 4096
Nov 02 14:55:31 BACKUPNAS01 kernel: BTRFS critical (device md127): unable to find logical 6961270095872 len 4096
Nov 02 14:55:31 BACKUPNAS01 kernel: BTRFS critical (device md127): unable to find logical 6961270095872 len 4096
Nov 02 14:55:31 BACKUPNAS01 kernel: BTRFS critical (device md127): unable to find logical 6961270095872 len 4096
Nov 02 14:55:31 BACKUPNAS01 kernel: BTRFS critical (device md127): unable to find logical 6961270095872 len 4096
Nov 02 14:55:34 BACKUPNAS01 kernel: al_eth 0000:00:03.0 eth1: Link is Down
Nov 02 14:55:34 BACKUPNAS01 kernel: al_eth 0000:00:03.0 eth1: al_eth_down
Nov 02 14:55:34 BACKUPNAS01 kernel: [eth rx] warn: dma state didn't change to Disable
Nov 02 14:55:34 BACKUPNAS01 kernel: [eth rx] warn: failed to change state, error -110
Nov 02 14:55:34 BACKUPNAS01 kernel: al_eth 0000:00:01.0 eth0: al_eth_down
Nov 02 14:55:34 BACKUPNAS01 kernel: [eth rx] warn: dma state didn't change to Disable
Nov 02 14:55:34 BACKUPNAS01 kernel: [eth rx] warn: failed to change state, error -110
Nov 02 14:56:47 BACKUPNAS01 kernel: BTRFS error (device md127): cleaner transaction attach returned -30
Nov 02 14:56:48 BACKUPNAS01 systemd-shutdown[1]: Sending SIGTERM to remaining processes...
-- Reboot --
....
now, how do i solve that? Do i have to reset the nas?
1 Reply
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DaPan wrote:
I recently discovered that our Backup-NAS (Readynas 214) stopped accepting Backups. It seems to have become read only. Reboot didn't help.
Here's what seems to be the problem (kernel.log) :
...
Nov 02 09:19:06 BACKUPNAS01 kernel: BTRFS critical (device md127): unable to find logical 6961270095872 len 4096
...
now, how do i solve that? Do i have to reset the nas?
There is some file system corruption. You could try paid netgear suppport - keeping in mind that might require a data recovery contract.
Since it is a backup, personally I'd do a factory default.
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