I've been running it for two months and haven't had a single Oops yet. That said, it is an experimental filesystem and you should be prepared to restore everyth

I've been running it for two months and haven't had a single Oops yet. That said, it is an experimental filesystem and you should be prepared to restore everything from (non-btrfs) backup. The btrfs code in 2.6.35 finally fixes something that's annoyed me for years about ext3/4 -- fsync heavy programs blocking everybody else's IO. Vmware workstation used to be insufferable because it and firefox would get into pissing matches over who could use fsync more and my system would grind to a halt. Writeback mode helped a little, but btrfs seems to fix it for good. Yay, btrfs!