Error: btrfs bad tree block

[Mathieu Chouquet-Stringer <mathieu@csetco.com>]

	Hello,

It seems BTRFS finally gave up on me! :-)  I've been using as my main FS
for quite a while and this time I'm not able to fix this issue.

I've tried mounting with -o clear_cache, zeroing the log and changing
super but I'm still getting this over and over:

btrfs bad tree block start 0 204055724032

This is running 3.2.0-rc6-00005-ga36bfdd

I've tried btrfsck but it segfaults haha...

I didn't do anything special before that except I had a bunch of
subvolumes and I deleted them.

Any idea what I could try next?

Thanks in advance,
-- 
Mathieu Chouquet-Stringer                         mathieu@csetco.com
            The sun itself sees not till heaven clears.
	             -- William Shakespeare --