On 06/24/2014 06:37 PM, Chris Murphy wrote:
On Jun 24, 2014, at 1:52 AM, Tamas Papp <tom...@martos.bme.hu> wrote:

On 06/22/2014 07:10 PM, Tamas Papp wrote:
On 06/20/2014 02:04 AM, George Mitchell wrote:
Hello Tamas,

I think it would help to provide more information than what you have posted.  
"open_ctree" can cover a lot of territory.

1)  I may be missing something, but I see no attachment.  I am not sure the 
mailing list can handle attachments?
Indeed, thanks!

chunk recover:
http://pastebin.com/raw.php?i=01ZdbCDq

debug tree:
http://pastebin.com/raw.php?i=LgKgEhiC

dmesg:
http://pastebin.com/raw.php?i=zZ5zVxue

dmidecode:
http://pastebin.com/raw.php?i=zZ5zVxue

find root:
http://pastebin.com/raw.php?i=zWdn56tR

show super:
http://pastebin.com/raw.php?i=unqZECJ3

super recover:
http://pastebin.com/raw.php?i=y7fKtn3M

2) I think it would help to include some sort of brief narrative as to what you 
are trying to do when you encounter the open_ctree failure.
I'm just trying to mount the partition:

mount -t btrfs /dev/sda4 /1

dmesg after -o recovery:

http://pastebin.com/raw.php?i=VAG9msx2
super-recover says supers are good, btrfs-find-tree finds tree root, but 
chunk-recover fails.

Please post the result from smartctl -x <dev>

I'd make sure you're on kernel 3.14 at the oldest, and same for btrfs-progs. 
Currently you're on v.3.12. And then also post the result of btrfs check 
(without --repair).

smartctl -x:

http://pastebin.com/raw.php?i=S3eaCb8b


The machine was running 3.15rcX, when it failed. Unfortunately I have only a live system now with this kernel versionI. I tried with the latest btrfs-progs from git with no success.

btrfs check (with v3.12):

Check tree block failed, want=325877760, have=0
Check tree block failed, want=325877760, have=0
Check tree block failed, want=325877760, have=0
read block failed check_tree_block
Couldn't setup extent tree
Critical roots corrupted, unable to fsck the FS
Checking filesystem on /dev/sda4
UUID: 7cf95491-8ec6-48a2-b4c4-4b80650d169a


tamas
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