Re: Recovery possible on asynchronous transid ?

2015-09-16 Thread Juergen Sauer
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
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Re: Recovery possible on asynchronous transid ?

2015-09-15 Thread Hugo Mills
On Tue, Sep 15, 2015 at 04:22:08PM +0200, Juergen Sauer wrote:
> Hi!
> 
> 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.

   Hugo.

> Is there any posibility to recover any files from this desaster?
> Is there any posibiolity to set the superblock to transid #293922 ?
> 
> See my tries to recover here as konsole log below.
> 
> 
> 
> 
> -x--x---x--x--
> BTRFS Tools Version: btrfs-progs v4.2
> 
> Kernel: Linux archiso 4.1.6-1-ARCH #1 SMP PREEMPT Mon Aug 17 08:52:28
> CEST 2015 x86_64 GNU/Linux
> 
> btrfs show
> Label: 'archiv'  uuid: 48f71e09-6898-4665-bc61-bd7ca4ba4a24
>   Total devices 4 FS bytes used 3.35TiB
>   devid1 size 1.70TiB used 726.69GiB path /dev/sdc3
>   devid2 size 1.82TiB used 1.35TiB path /dev/sdb1
>   devid3 size 1.82TiB used 1.35TiB path /dev/sda1
>   devid4 size 1.82TiB used 1.35TiB path /dev/sdd1
> 
> mount LABEL=archiv /mnt -o degraded,ro
> # dmesg
> [ 1086.691246] BTRFS info (device sdd1): allowing degraded mounts
> [ 1086.691251] BTRFS info (device sdd1): disk space caching is enabled
> [ 1086.714109] BTRFS (device sdd1): parent transid verify failed on
> 209362944 wanted 293924 found 293922
> [ 1086.752227] BTRFS (device sdd1): parent transid verify failed on
> 244719616 wanted 293924 found 293922
> [ 1086.754377] BTRFS: bdev /dev/sdb1 errs: wr 3, rd 0, flush 1, corrupt
> 0, gen 0
> [ 1086.754676] BTRFS (device sdd1): parent transid verify failed on
> 209375232 wanted 293924 found 293914
> [ 1086.770626] BTRFS (device sdd1): parent transid verify failed on
> 245538816 wanted 293924 found 293922
> [ 1086.912646] BTRFS (device sdd1): parent transid verify failed on
> 253378560 wanted 293924 found 293914
> [ 1086.942088] BTRFS (device sdd1): parent transid verify failed on
> 253390848 wanted 293924 found 293914
> [ 1086.944003] BTRFS (device sdd1): parent transid verify failed on
> 253403136 wanted 293924 found 293914
> [ 1087.262500] BTRFS (device sdd1): parent transid verify failed on
> 253911040 wanted 293924 found 293914
> [ 1087.264800] BTRFS (device sdd1): bad tree block start 0 253911040
> [ 1087.266442] BTRFS: Failed to read block groups: -5
> [ 1087.315127] BTRFS: open_ctree failed
> 
> # btrfs-find-root /dev/sda1
> Superblock thinks the generation is 293924
> Superblock thinks the level is 2
> Found tree root at 244273152 gen 293924 level 2
> Well block 238604288(gen: 293923 level: 2) seems good, but
> generation/level doesn't match, want gen: 293924 level: 2
> Well block 199577600(gen: 293922 level: 2) seems good, but
> generation/level doesn't match, want gen: 293924 level: 2
> Well block 199786496(gen: 293921 level: 2) seems good, but
> generation/level doesn't match, want gen: 293924 level: 2
> Well block 199925760(gen: 293919 level: 0) seems good, but
> generation/level doesn't match, want gen: 293924 level: 2
> Well block 209240064(gen: 293914 level: 0) seems good, but
> generation/level doesn't match, want gen: 293924 level: 2
> Well block 182116352(gen: 293913 level: 2) seems good, but
> generation/level doesn't match, want gen: 293924 level: 2
> Well block 179388416(gen: 293912 level: 2) seems good, but
> generation/level doesn't match, want gen: 293924 level: 2
> Well block 238559232(gen: 293911 level: 0) seems good, but
> generation/level doesn't match, want gen: 293924 level: 2
> Well block 237764608(gen: 293911 level: 0) seems good, but
> generation/level doesn't match, want gen: 293924 level: 2
> Well block 175108096(gen: 293910 level: 2) seems good, but
> generation/level doesn't match, want gen: 293924 level: 2
> Well block 74981376(gen: 293909 level: 2) seems good, but
> generation/level doesn't match, want gen: 293924 level: 2
> Well block 156815360(gen: 293908 level: 0) seems good, but
> generation/level doesn't match, want gen: 293924 level: 2
> Well block 156807168(gen: 293908 level: 0) seems good, but
> generation/level doesn't match, want gen: 293924 level: 2
> Well block 156803072(gen: 293908 level: 0) seems good, but
> generation/level doesn't match, want gen: 293924 level: 2
> Well block 156688384(gen: 293908 level: 0) seems good, but
> generation/level doesn't match, want gen: 293924 level: 2
> Well block 153407488(gen: 293908 level: 0) seems good, but
> generation/level doesn't match, want gen: 293924 level: 2
> Well block 149504000(gen: 293908 level: 0) seems good, but
> generation/level doesn't match, want gen: 293924 level: 2
> Well block 149499904(gen: 293908 level: 0) seems good, but
> generation/level doesn't match, want gen: 293924 level: 2
> Well block 149078016(gen: 293908 level: 0) seems good,

Recovery possible on asynchronous transid ?

2015-09-15 Thread Juergen Sauer
Hi!

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

Is there any posibility to recover any files from this desaster?
Is there any posibiolity to set the superblock to transid #293922 ?

See my tries to recover here as konsole log below.




-x--x---x--x--
BTRFS Tools Version: btrfs-progs v4.2

Kernel: Linux archiso 4.1.6-1-ARCH #1 SMP PREEMPT Mon Aug 17 08:52:28
CEST 2015 x86_64 GNU/Linux

btrfs show
Label: 'archiv'  uuid: 48f71e09-6898-4665-bc61-bd7ca4ba4a24
Total devices 4 FS bytes used 3.35TiB
devid1 size 1.70TiB used 726.69GiB path /dev/sdc3
devid2 size 1.82TiB used 1.35TiB path /dev/sdb1
devid3 size 1.82TiB used 1.35TiB path /dev/sda1
devid4 size 1.82TiB used 1.35TiB path /dev/sdd1

mount LABEL=archiv /mnt -o degraded,ro
# dmesg
[ 1086.691246] BTRFS info (device sdd1): allowing degraded mounts
[ 1086.691251] BTRFS info (device sdd1): disk space caching is enabled
[ 1086.714109] BTRFS (device sdd1): parent transid verify failed on
209362944 wanted 293924 found 293922
[ 1086.752227] BTRFS (device sdd1): parent transid verify failed on
244719616 wanted 293924 found 293922
[ 1086.754377] BTRFS: bdev /dev/sdb1 errs: wr 3, rd 0, flush 1, corrupt
0, gen 0
[ 1086.754676] BTRFS (device sdd1): parent transid verify failed on
209375232 wanted 293924 found 293914
[ 1086.770626] BTRFS (device sdd1): parent transid verify failed on
245538816 wanted 293924 found 293922
[ 1086.912646] BTRFS (device sdd1): parent transid verify failed on
253378560 wanted 293924 found 293914
[ 1086.942088] BTRFS (device sdd1): parent transid verify failed on
253390848 wanted 293924 found 293914
[ 1086.944003] BTRFS (device sdd1): parent transid verify failed on
253403136 wanted 293924 found 293914
[ 1087.262500] BTRFS (device sdd1): parent transid verify failed on
253911040 wanted 293924 found 293914
[ 1087.264800] BTRFS (device sdd1): bad tree block start 0 253911040
[ 1087.266442] BTRFS: Failed to read block groups: -5
[ 1087.315127] BTRFS: open_ctree failed

# btrfs-find-root /dev/sda1
Superblock thinks the generation is 293924
Superblock thinks the level is 2
Found tree root at 244273152 gen 293924 level 2
Well block 238604288(gen: 293923 level: 2) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 199577600(gen: 293922 level: 2) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 199786496(gen: 293921 level: 2) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 199925760(gen: 293919 level: 0) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 209240064(gen: 293914 level: 0) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 182116352(gen: 293913 level: 2) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 179388416(gen: 293912 level: 2) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 238559232(gen: 293911 level: 0) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 237764608(gen: 293911 level: 0) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 175108096(gen: 293910 level: 2) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 74981376(gen: 293909 level: 2) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 156815360(gen: 293908 level: 0) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 156807168(gen: 293908 level: 0) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 156803072(gen: 293908 level: 0) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 156688384(gen: 293908 level: 0) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 153407488(gen: 293908 level: 0) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 149504000(gen: 293908 level: 0) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 149499904(gen: 293908 level: 0) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 149078016(gen: 293908 level: 0) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 149073920(gen: 293908 level: 0) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 147288064(gen: 293908 level: 0) seems good, but
generation/level doesn't match, want gen: 293924 level: 2
Well block 107081728(gen