Re: open_ctree failed

[Tamas Papp <tompos@martos.bme.hu>]

On 06/25/2014 03:09 PM, Tamas Papp wrote:
>
> On 06/24/2014 06:37 PM, Chris Murphy wrote:
>> On Jun 24, 2014, at 1:52 AM, Tamas Papp <tompos@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
>

With latest from git (3.14.2):

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
Check tree block failed, want=324567040, have=0
Check tree block failed, want=324567040, have=0
Check tree block failed, want=324567040, have=0
read block failed check_tree_block
Couldn't setup csum tree
Check tree block failed, want=326631424, have=0
Check tree block failed, want=326631424, have=0
Check tree block failed, want=326631424, have=0
read block failed check_tree_block
Couldn't setup log root tree
Critical roots corrupted, unable to fsck the FS
Segmentation fault (core dumped)


tamaas