Hi! I recently had some trouble with my root and home btrfs filesystems. My system (Ubuntu 13.04, Kernel 3.8) started freezing when copying larger numbers of files around (hard freeze, no logs about what happened).
At some time booting up wasn't possible anymore due to a kernel bug while mounting the homefs. Btrfsck built from git wasn't able to repair the fs and segfaulted. Btrfs-zero-log was able to make home mountable again and the fs is clean since then according to btrfsck. The system appeared ok, but then I ran into trouble performing an apt-get upgrade, which was unable to access some of its files due to a "stale NFS lock". I found no kernel messages in dmesg concerning that matter, just this user-space error message. An offline check of the root file system (booting from USB live system) showed up some errors. Btrfsck wasn't able to repair them and segfaulted. I reinstalled the system now. Btrfsck on the root fs: https://docs.google.com/file/d/0B7RIDdXgzUrqTUczWHZYejUzMWM/edit?usp=sharing Btrfs-image of the root fs: https://docs.google.com/file/d/0B7RIDdXgzUrqV3hEZ1BZX0lhbVk/edit?usp=sharing Kernel-bug when mounting the home fs: https://docs.google.com/file/d/0B7RIDdXgzUrqTGFneGdCM0FBYzg/edit?usp=sharing Btrfsck on the home fs: https://docs.google.com/file/d/0B7RIDdXgzUrqODVhUUhqa2Q4c0k/edit?usp=sharing Btrfs-zero-log on home fs: https://docs.google.com/file/d/0B7RIDdXgzUrqM3ltTnBUVWMzdjg/edit?usp=sharing I still have an image (dd and btrfs-image) of the broken homefs. If this is of any use to you feel free to contact me via email. Best regards, Peter -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
