a day or so ago my btrfs partition just stopped working, which means i can't mount it anymore which is why my Fedora Linux doesn't boot anymore. I don't really have much information, but Gparted outputs the following when i attempt to check the partition:
checking extents checking fs root checking root refs btrfsck: extent_io.c:602:free_extent_buffer: Assertion `!(eb->refs < 0)` failed.
When I tried to mount the partition with a Fedora 18 Live DVD I got a SIGSEGV from the mount program and additionally an unknown kernel error which was also tainted.
Do you have any idea how to restore the data on this partition or it is lost for sure?