> On 27.01.20 г. 9:53 ч., Raviu wrote: > > > Follow-up: > > It seems that I could solve my problem. Maybe this can also help you know the root cause and reproduce it some how. > > My buggy btrfs was initially on a single partition, I've freed another partition later and added as `btrfs device add` as the free partition was to the left of the original one so a resize was not possible. > > Originally I'd metadata as dup and data as single. > > Even after adding the new device it remained like that for few days, yesterday, I noticed it reported both dup and RAID1 of metadata which was weird. It did some sort of metadata balance on its own when it got a new partition, actually I didn't run such balance command before as both partition are on the same disk, so thought that raid-1 is useless. > > So I've taken a backup, then run `btrfs balance start -mconvert=raid1 /home/` .. So only raid1 is reported now on `btrfs filesystem df` and `btrfs filesystem usage`. I then run fstrim and it worked fine. > > Yes, this is very hlepful. So if I got you correct you initially had > everything in a single disk. Then you added a second disk but you hadn't > run balance. And that's when it was crashing then you run balance and > now it's not crashing? If that's the case then I know what the problem > is and will send a fix. Yes, exactly.
