I've got a couple of directories that cause a btrfs segfault. First one happened at the end of July and I just renamed it to get it out of my way (can't delete it without crashing); the second one just happened and I'll be discarding the filesystem. This "crash when touched" behavior is frustrating because it makes it iffy to back up everything else. Usually about the second attempt to touch the bad directory requires a reboot. Instead, I would prefer that the filesystem not crash the whole system when it encounters a corrupted area. I've tried "btrfs scrub" and "btrfs check" but they don't find anything wrong. I guess the next step would be "btrfs restore", but I think I have a good enough backup made with a normal copy skipping the two corrupted directories. Here's my info. $ uname -a Linux cardamom 3.13.0-36-generic #63-Ubuntu SMP Wed Sep 3 21:30:07 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux $ btrfs --version Btrfs v3.12 $ btrfs fi show Btrfs v3.12 $ btrfs fi df /home # Replace /home with the mount point of your btrfs-filesystem Data, single: total=110.01GiB, used=108.09GiB System, DUP: total=8.00MiB, used=20.00KiB System, single: total=4.00MiB, used=0.00 Metadata, DUP: total=3.00GiB, used=2.31GiB Metadata, single: total=8.00MiB, used=0.00