Am 15.09.2015 um 17:55 schrieb Hugo Mills:
> On Tue, Sep 15, 2015 at 04:22:08PM +0200, Juergen Sauer wrote:

>> Due an hibernation event my BTRFS Raid56 failed and is not mountable
>> anymore. :(

>> For Debugging I moved the Devices to an test-hardware and booted this
>> system from an Arch Linux ISO, which I created for this purpose.

>> The Problem is:
>> [ 1086.714109] BTRFS (device sdd1): parent transid verify failed on
>> 209362944 wanted 293924 found 293922

>    Try mounting with -o recovery, and see if that helps.

Looks bad, does not really work:
[68928.031733] BTRFS info (device sdd1): enabling auto recovery
[68928.031737] BTRFS info (device sdd1): disk space caching is enabled
[68928.054066] BTRFS (device sdd1): parent transid verify failed on
209362944 wanted 293924 found 293922
[68928.069521] BTRFS (device sdd1): parent transid verify failed on
244719616 wanted 293924 found 293922
[68928.071678] BTRFS: bdev /dev/sdb1 errs: wr 3, rd 0, flush 1, corrupt
0, gen 0
[68928.072003] BTRFS (device sdd1): parent transid verify failed on
209375232 wanted 293924 found 293914
[68928.080334] BTRFS (device sdd1): parent transid verify failed on
245538816 wanted 293924 found 293922
[68928.123135] BTRFS (device sdd1): parent transid verify failed on
253378560 wanted 293924 found 293914
[68928.145374] BTRFS (device sdd1): parent transid verify failed on
253390848 wanted 293924 found 293914
[68928.146821] BTRFS (device sdd1): parent transid verify failed on
253403136 wanted 293924 found 293914
[68928.261550] BTRFS (device sdd1): parent transid verify failed on
253911040 wanted 293924 found 293914
[68928.263319] BTRFS (device sdd1): bad tree block start 0 253911040

I think, it could hel to be able to choose a special transid or to work
read-only on an special older transid, i.e. 'transid: 293914' ?

But how to do that?

Or may it help to remove an device out of raid56 cluster?


mit freundlichen Grüßen
Jürgen Sauer
-- 
Jürgen Sauer - automatiX GmbH,
+49-4209-4699, juergen.sa...@automatix.de
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