On Mon, Mar 11, 2013 at 11:44 PM, Matthew Booth <matt...@heisenbug.com> wrote: > My laptop crashed hard earlier today. It reset immediately to a black > screen followed by the BIOS. I have no idea why. > > However, it now fails to boot. I took a picture of the kernel panic > that results from trying to mount the root filesystem: > https://plus.google.com/107763699965053810188/posts/QZZt7GYzBZi > > To make things worse, btrfsck aborts with a double free, without > fixing it. I took a picture of that, too: > https://plus.google.com/107763699965053810188/posts/gKYqGgFhWyT > > As the kernel panic mentions btrfs_remove_free_space, I also tried > mounting with clear_cache. Unfortunately it didn't dislodge anything. > > This is on a fully updated Fedora 18 system. I would really like to > get this data back. If anybody could offer a suggestion I'd be very > grateful. > > Thanks, > > Matt > -- > 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
If you can make a complete image backup of the drive before trying any things to bring it back. Try mounting with -o nospace_cache, also try -o ro and -o recovery as well as -o recovery,ro. If you can bringt it back in ro mode you can at least copy your data out of it if all else fails... I'm not a dev, just a random guy having an interest in btrfs, so if you don't have a backup and aren't able to create a dd copy of it right now you might wanna wait for a reply of someone who actually knows the code... Good luck -- 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
