Jeff Mahoney posted on Sun, 04 Aug 2013 22:27:31 -0400 as excerpted: > On 8/4/13 6:58 PM, Alfredo Esteban wrote: >> I tried to unmount a btrfs filesystem located in a external usb hard >> drive. This belonged to a raid1 data and metadata filesystem mounted in >> degraded mode. >> >> Unfortunately, I couldn't save the image of filesystem but I could see >> this error in kern.log: [snip] >> Aug 4 02:26:06 rohan kernel: [ 3878.947184] kernel BUG at >> /build/buildd/linux-3.2.0/fs/btrfs/inode.c:806! > > This is against the 3.2 kernel, which is now 19 months old and ancient > in terms of btrfs support. Please see if you can reproduce with a more > recent kernel. Otherwise, file a bug report with Ubuntu if they are > doing substantial btrfs backports. Seconded. Also, if you're not aware of the btrfs wiki yet, you probably want to read up on btrfs there. It stresses btrfs' development nature and the importance of running a current kernel for btrfs testing in several places, so the fact that you're not doing so indicates that you probably hadn't read the wiki, and are thus likely missing out on other potentially very useful information, as well. https://btrfs.wiki.kernel.org/ -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman -- 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
