Btrfs has been broken for me for ages. I first reported it on this list 5 months ago[1]. Below is a very simple reproducer that anyone can run. *NB* before you run this, adjust /dev/sda & /dev/sda1 to point to an unused block device! ---------------------------------------------------------------------- #!/bin/sh - set -e while true; do parted -s -- /dev/sda mklabel msdos parted -s -- /dev/sda mkpart primary 64s -64s wipefs -a /dev/sda1 mkfs.btrfs --label TEST /dev/sda1 mount /dev/sda1 /sysroot touch /sysroot/foo mkdir /sysroot/bar umount /sysroot done ---------------------------------------------------------------------- On the latest 3.8.0 kernel, this fails immediately (at the mount), and on 3.7.x it usually fails after a very few iterations. I see a variety of errors, but the latest kernel error is: [ 8.474934] device label ROOT devid 1 transid 2 /dev/sda2 [ 8.570619] device label ROOT devid 1 transid 2 /dev/sda2 [ 8.581891] btrfs: disk space caching is enabled [ 8.594146] btrfs bad tree block start 0 4194304 [ 8.595144] btrfs: failed to read tree root on sda2 [ 8.605308] btrfs: open_ctree failed I would really like btrfs to work. What can I do? Rich. [1] http://article.gmane.org/gmane.comp.file-systems.btrfs/20257 -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Fedora Windows cross-compiler. Compile Windows programs, test, and build Windows installers. Over 100 libraries supported. http://fedoraproject.org/wiki/MinGW -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
