On Tue, Nov 24, 2015 at 03:28:28PM -0500, Austin S Hemmelgarn wrote: > On 2015-11-24 12:06, Vincent Olivier wrote: > >Hi, > > > >Woke up this morning with a kernel panic (for which I do not have details). > >Please find below the output for btrfs check. Is this normal ? What should I > >do ? Arch Linux 4.2.5. Btrfs-utils 4.3.1. 17x4TB RAID10. > You get bonus points for being on a reasonably up-to-date kernel and > userspace :) > > This is actually a pretty tame check result for a filesystem that's > been through kernel panic. I think everything listed here is safe > for check to fix, but I would suggest waiting until the devs provide > opinions before actually running with --repair. I would also > suggest comparing results between the different devices in the FS, > if things are drastically different, you may have issues that check > can't fix on it's own. > >[root@3dcpc5 ~]# btrfs check /dev/sdk > >Checking filesystem on /dev/sdk > >UUID: 6a742786-070d-4557-9e67-c73b84967bf5 > >checking extents > >checking free space cache > >checking fs roots > These next two lines are errors, but I'm not 100% certain if it's > safe to have check fix them: > >root 5 inode 1341670 errors 400, nbytes wrong > >root 11406 inode 1341670 errors 400, nbytes wrong
I think so yes. > This next one is also an error, and I am fairly certain that it's > safe to have check fix as long as the number at the end is not too > big. > >found 19328809638262 bytes used err is 1 Agreed. Hugo. > The rest is just reference info > >total csum bytes: 18849042724 > >total tree bytes: 27389886464 > >total fs tree bytes: 4449746944 > >total extent tree bytes: 3075457024 > >btree space waste bytes: 2880474254 > The only other thing I know that's worth mentioning is that if the > numbers on these next two lines don't match, you may be missing some > writes from right before the crash. > >file data blocks allocated: 19430708535296 > >referenced 20123773407232 -- Hugo Mills | Great films about cricket: Umpire of the Rising Sun hugo@... carfax.org.uk | http://carfax.org.uk/ | PGP: E2AB1DE4 |
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