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Forum Discussion
aeldaly
Mar 07, 2019Follower
RN214 btrfs corruption forced readonly
I'm getting BTRFS corruption...
So it started with turning on teaming for the NIC cards in network settings. The device locked up and I had to force restart it. When it did, it started a rebalance that took about 20 hours. When it was done, I noticed that the system was much slower than before.
So I searched around here in this forum and there was a thread about doing a full rebalance to fix the issue. I'm sorry I do not remember the command, but it was to echo to a file and reboot.
It ran for 2 days or so. When I came back from work today it was done. So I mounted the drives on my laptop and as I started using it I noticed that the file system was read only. dmesg showed:
BTRFS critical (device md126): unable to find logical 407721705472 len 4096
and:
[<c001524c>] (unwind_backtrace) from [<c001173c>] (show_stack+0x10/0x18)
I decided to reboot again to see if that may fix it. It rebooted successfully and dmesg showed not errors. I could right to the filesystem. For a bit. And then it's hapenned again. I've shutdown the system, and would appreciate all support to hopefully fix this issue.
Thanks.
2 Replies
Replies have been turned off for this discussion
- StephenBGuru - Experienced User
I'd start by booting it up read-only (if it's not read-only already) and making a backup of the files.
- HopchenProdigy
Yes, try rebooting into read only mode. You might be able to access the data then and take a backup if you don't have one already.
Do you have a recent log-set? I can take a quick look at it if you like. You can make a Google link or something similar and PM me that.
Cheers
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