* Recovery of a raid1 FS
@ 2016-01-07 4:02 Tom Hunt
2016-01-07 5:16 ` Tom Hunt
0 siblings, 1 reply; 11+ messages in thread
From: Tom Hunt @ 2016-01-07 4:02 UTC (permalink / raw)
To: linux-btrfs
I've got a two-disk RAID1 btrfs volume, which crashed for no apparent
reason and was corrupt on next boot. Relevant command runs and
outputs:
[root@archiso ~]# mount -osubvol=.,ro,recovery /dev/mapper/rootvol_1 mnt
mount: wrong fs type, bad option, bad superblock on /dev/mapper/rootvol_1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so.
[ 372.665800] Btrfs loaded
[ 372.666481] BTRFS: device fsid 91f7e058-1142-4036-b1f7-4f64163dc8ae
devid 1 transid 257371 /dev/dm-4
[ 389.339860] BTRFS: device fsid 91f7e058-1142-4036-b1f7-4f64163dc8ae
devid 2 transid 257371 /dev/dm-5
[ 781.695931] BTRFS info (device dm-5): enabling auto recovery
[ 781.695933] BTRFS info (device dm-5): disk space caching is enabled
[ 781.695934] BTRFS: has skinny extents
[ 781.776198] BTRFS: bdev /dev/mapper/rootvol_2 errs: wr 0, rd 0,
flush 0, corrupt 10, gen 426
[ 791.982552] BTRFS critical (device dm-5): corrupt leaf, bad key
order: block=6210228551680,root=1, slot=49
[ 791.982836] BTRFS critical (device dm-5): corrupt leaf, bad key
order: block=6210228551680,root=1, slot=49
[ 791.982862] BTRFS: Failed to read block groups: -5
[ 792.030513] BTRFS: open_ctree failed
[root@archiso ~]# btrfs restore -D /dev/mapper/rootvol_1
/root/tmp_data | tee data_mnt/tom/restore_list.txt
bad key ordering 49 50
Error searching -1
Error searching /root/tmp_data/home
This is a dry-run, no files are going to be restored
We have looped trying to restore files in
/exherbo/root/squashfs-root/usr/bin too many times to be making
progress, stopping
We have looped trying to restore files in
/exherbo/root/squashfs-root/usr/share/man/man1 too many times to be
making progress, stopping
We have looped trying to restore files in
/exherbo/root/squashfs-root/usr/share/man/man3 too many times to be
making progress, stopping
We have looped trying to restore files in
/exherbo/usr/x86_64-pc-linux-gnu/bin too many times to be making
progress, stopping
We have looped trying to restore files in
/exherbo/usr/x86_64-pc-linux-gnu/include/firefox/mozilla/dom too many
times to be making progress, stopping
We have looped trying to restore files in
/exherbo/usr/x86_64-pc-linux-gnu/include/firefox too many times to be
making progress, stopping
We have looped trying to restore files in
/exherbo/usr/x86_64-pc-linux-gnu/lib/python3.5/test/__pycache__ too
many times to be making progress, stopping
We have looped trying to restore files in
/exherbo/usr/x86_64-pc-linux-gnu/lib/python2.7/test too many times to
be making progress, stopping
We have looped trying to restore files in
/exherbo/usr/x86_64-pc-linux-gnu/lib/debug/usr/x86_64-pc-linux-gnu/bin
too many times to be making progress, stopping
We have looped trying to restore files in /exherbo/usr/share/man/man3
too many times to be making progress, stopping
We have looped trying to restore files in /exherbo/usr/share/man/man1
too many times to be making progress, stopping
We have looped trying to restore files in
/exherbo/usr/share/idl/firefox too many times to be making progress,
stopping
[root@archiso ~]# btrfs restore -v -l /dev/mapper/rootvol_1
bad key ordering 49 50
tree key (EXTENT_TREE ROOT_ITEM 0) 6210219163648 level 2
tree key (DEV_TREE ROOT_ITEM 0) 3792640000000 level 1
tree key (FS_TREE ROOT_ITEM 0) 3792595566592 level 0
tree key (CSUM_TREE ROOT_ITEM 0) 6210220048384 level 3
tree key (UUID_TREE ROOT_ITEM 0) 3792855105536 level 0
tree key (257 ROOT_ITEM 0) 3792551755776 level 2
tree key (258 ROOT_ITEM 0) 6210218557440 level 2
tree key (3785 ROOT_ITEM 0) 7588191682560 level 0
tree key (3786 ROOT_ITEM 0) 7588191633408 level 0
tree key (7565 ROOT_ITEM 0) 6210221588480 level 2
tree key (7566 ROOT_ITEM 0) 4055721377792 level 0
tree key (7567 ROOT_ITEM 101377) 3792849616896 level 2
tree key (DATA_RELOC_TREE ROOT_ITEM 0) 3792520544256 level 0
Any help available? I tried using btrfs-restore previously on a
different machine with only one of the disks plugged in, and it at
least showed some files, though the 'Error searching -1' still showed
up. (The /home subvolume is the only one I really care about;
everything else is nice-to-have.)
--
Tom Hunt
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Recovery of a raid1 FS
2016-01-07 4:02 Recovery of a raid1 FS Tom Hunt
@ 2016-01-07 5:16 ` Tom Hunt
2016-01-07 6:02 ` Qu Wenruo
0 siblings, 1 reply; 11+ messages in thread
From: Tom Hunt @ 2016-01-07 5:16 UTC (permalink / raw)
To: linux-btrfs
Some things I missed:
[root@archiso ~]# uname -a
Linux archiso 4.2.5-1-ARCH #1 SMP PREEMPT Tue Oct 27 08:13:28 CET 2015
x86_64 GNU/Linux
[root@archiso ~]# btrfs --version
btrfs-progs v4.3.1
[root@archiso ~]# btrfs fi show
Label: none uuid: 91f7e058-1142-4036-b1f7-4f64163dc8ae
Total devices 2 FS bytes used 3.84TiB
devid 1 size 5.45TiB used 3.86TiB path /dev/mapper/rootvol_1
devid 2 size 5.45TiB used 3.86TiB path /dev/mapper/rootvol_2
This is a liveUSB, but the machine that was running was also an up-to-date Arch.
On Wed, Jan 6, 2016 at 9:02 PM, Tom Hunt <tomdicksonhunt@gmail.com> wrote:
> I've got a two-disk RAID1 btrfs volume, which crashed for no apparent
> reason and was corrupt on next boot. Relevant command runs and
> outputs:
>
> [root@archiso ~]# mount -osubvol=.,ro,recovery /dev/mapper/rootvol_1 mnt
> mount: wrong fs type, bad option, bad superblock on /dev/mapper/rootvol_1,
> missing codepage or helper program, or other error
>
> In some cases useful info is found in syslog - try
> dmesg | tail or so.
> [ 372.665800] Btrfs loaded
> [ 372.666481] BTRFS: device fsid 91f7e058-1142-4036-b1f7-4f64163dc8ae
> devid 1 transid 257371 /dev/dm-4
> [ 389.339860] BTRFS: device fsid 91f7e058-1142-4036-b1f7-4f64163dc8ae
> devid 2 transid 257371 /dev/dm-5
> [ 781.695931] BTRFS info (device dm-5): enabling auto recovery
> [ 781.695933] BTRFS info (device dm-5): disk space caching is enabled
> [ 781.695934] BTRFS: has skinny extents
> [ 781.776198] BTRFS: bdev /dev/mapper/rootvol_2 errs: wr 0, rd 0,
> flush 0, corrupt 10, gen 426
> [ 791.982552] BTRFS critical (device dm-5): corrupt leaf, bad key
> order: block=6210228551680,root=1, slot=49
> [ 791.982836] BTRFS critical (device dm-5): corrupt leaf, bad key
> order: block=6210228551680,root=1, slot=49
> [ 791.982862] BTRFS: Failed to read block groups: -5
> [ 792.030513] BTRFS: open_ctree failed
>
> [root@archiso ~]# btrfs restore -D /dev/mapper/rootvol_1
> /root/tmp_data | tee data_mnt/tom/restore_list.txt
> bad key ordering 49 50
> Error searching -1
> Error searching /root/tmp_data/home
> This is a dry-run, no files are going to be restored
> We have looped trying to restore files in
> /exherbo/root/squashfs-root/usr/bin too many times to be making
> progress, stopping
> We have looped trying to restore files in
> /exherbo/root/squashfs-root/usr/share/man/man1 too many times to be
> making progress, stopping
> We have looped trying to restore files in
> /exherbo/root/squashfs-root/usr/share/man/man3 too many times to be
> making progress, stopping
> We have looped trying to restore files in
> /exherbo/usr/x86_64-pc-linux-gnu/bin too many times to be making
> progress, stopping
> We have looped trying to restore files in
> /exherbo/usr/x86_64-pc-linux-gnu/include/firefox/mozilla/dom too many
> times to be making progress, stopping
> We have looped trying to restore files in
> /exherbo/usr/x86_64-pc-linux-gnu/include/firefox too many times to be
> making progress, stopping
> We have looped trying to restore files in
> /exherbo/usr/x86_64-pc-linux-gnu/lib/python3.5/test/__pycache__ too
> many times to be making progress, stopping
> We have looped trying to restore files in
> /exherbo/usr/x86_64-pc-linux-gnu/lib/python2.7/test too many times to
> be making progress, stopping
> We have looped trying to restore files in
> /exherbo/usr/x86_64-pc-linux-gnu/lib/debug/usr/x86_64-pc-linux-gnu/bin
> too many times to be making progress, stopping
> We have looped trying to restore files in /exherbo/usr/share/man/man3
> too many times to be making progress, stopping
> We have looped trying to restore files in /exherbo/usr/share/man/man1
> too many times to be making progress, stopping
> We have looped trying to restore files in
> /exherbo/usr/share/idl/firefox too many times to be making progress,
> stopping
>
> [root@archiso ~]# btrfs restore -v -l /dev/mapper/rootvol_1
> bad key ordering 49 50
> tree key (EXTENT_TREE ROOT_ITEM 0) 6210219163648 level 2
> tree key (DEV_TREE ROOT_ITEM 0) 3792640000000 level 1
> tree key (FS_TREE ROOT_ITEM 0) 3792595566592 level 0
> tree key (CSUM_TREE ROOT_ITEM 0) 6210220048384 level 3
> tree key (UUID_TREE ROOT_ITEM 0) 3792855105536 level 0
> tree key (257 ROOT_ITEM 0) 3792551755776 level 2
> tree key (258 ROOT_ITEM 0) 6210218557440 level 2
> tree key (3785 ROOT_ITEM 0) 7588191682560 level 0
> tree key (3786 ROOT_ITEM 0) 7588191633408 level 0
> tree key (7565 ROOT_ITEM 0) 6210221588480 level 2
> tree key (7566 ROOT_ITEM 0) 4055721377792 level 0
> tree key (7567 ROOT_ITEM 101377) 3792849616896 level 2
> tree key (DATA_RELOC_TREE ROOT_ITEM 0) 3792520544256 level 0
>
> Any help available? I tried using btrfs-restore previously on a
> different machine with only one of the disks plugged in, and it at
> least showed some files, though the 'Error searching -1' still showed
> up. (The /home subvolume is the only one I really care about;
> everything else is nice-to-have.)
>
> --
> Tom Hunt
--
Tom Dickson-Hunt
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Recovery of a raid1 FS
2016-01-07 5:16 ` Tom Hunt
@ 2016-01-07 6:02 ` Qu Wenruo
2016-01-08 1:43 ` Tom Hunt
0 siblings, 1 reply; 11+ messages in thread
From: Qu Wenruo @ 2016-01-07 6:02 UTC (permalink / raw)
To: Tom Hunt, linux-btrfs
Did you tried btrfsck without --repair?
And would you please paste the output of the following command?
# btrfs-debug-tree <YOUR_DEVICE> -b 6210228551680
Thanks,
Qu
Tom Hunt wrote on 2016/01/06 22:16 -0700:
> Some things I missed:
>
> [root@archiso ~]# uname -a
> Linux archiso 4.2.5-1-ARCH #1 SMP PREEMPT Tue Oct 27 08:13:28 CET 2015
> x86_64 GNU/Linux
> [root@archiso ~]# btrfs --version
> btrfs-progs v4.3.1
> [root@archiso ~]# btrfs fi show
> Label: none uuid: 91f7e058-1142-4036-b1f7-4f64163dc8ae
> Total devices 2 FS bytes used 3.84TiB
> devid 1 size 5.45TiB used 3.86TiB path /dev/mapper/rootvol_1
> devid 2 size 5.45TiB used 3.86TiB path /dev/mapper/rootvol_2
>
>
> This is a liveUSB, but the machine that was running was also an up-to-date Arch.
>
> On Wed, Jan 6, 2016 at 9:02 PM, Tom Hunt <tomdicksonhunt@gmail.com> wrote:
>> I've got a two-disk RAID1 btrfs volume, which crashed for no apparent
>> reason and was corrupt on next boot. Relevant command runs and
>> outputs:
>>
>> [root@archiso ~]# mount -osubvol=.,ro,recovery /dev/mapper/rootvol_1 mnt
>> mount: wrong fs type, bad option, bad superblock on /dev/mapper/rootvol_1,
>> missing codepage or helper program, or other error
>>
>> In some cases useful info is found in syslog - try
>> dmesg | tail or so.
>> [ 372.665800] Btrfs loaded
>> [ 372.666481] BTRFS: device fsid 91f7e058-1142-4036-b1f7-4f64163dc8ae
>> devid 1 transid 257371 /dev/dm-4
>> [ 389.339860] BTRFS: device fsid 91f7e058-1142-4036-b1f7-4f64163dc8ae
>> devid 2 transid 257371 /dev/dm-5
>> [ 781.695931] BTRFS info (device dm-5): enabling auto recovery
>> [ 781.695933] BTRFS info (device dm-5): disk space caching is enabled
>> [ 781.695934] BTRFS: has skinny extents
>> [ 781.776198] BTRFS: bdev /dev/mapper/rootvol_2 errs: wr 0, rd 0,
>> flush 0, corrupt 10, gen 426
>> [ 791.982552] BTRFS critical (device dm-5): corrupt leaf, bad key
>> order: block=6210228551680,root=1, slot=49
>> [ 791.982836] BTRFS critical (device dm-5): corrupt leaf, bad key
>> order: block=6210228551680,root=1, slot=49
>> [ 791.982862] BTRFS: Failed to read block groups: -5
>> [ 792.030513] BTRFS: open_ctree failed
>>
>> [root@archiso ~]# btrfs restore -D /dev/mapper/rootvol_1
>> /root/tmp_data | tee data_mnt/tom/restore_list.txt
>> bad key ordering 49 50
>> Error searching -1
>> Error searching /root/tmp_data/home
>> This is a dry-run, no files are going to be restored
>> We have looped trying to restore files in
>> /exherbo/root/squashfs-root/usr/bin too many times to be making
>> progress, stopping
>> We have looped trying to restore files in
>> /exherbo/root/squashfs-root/usr/share/man/man1 too many times to be
>> making progress, stopping
>> We have looped trying to restore files in
>> /exherbo/root/squashfs-root/usr/share/man/man3 too many times to be
>> making progress, stopping
>> We have looped trying to restore files in
>> /exherbo/usr/x86_64-pc-linux-gnu/bin too many times to be making
>> progress, stopping
>> We have looped trying to restore files in
>> /exherbo/usr/x86_64-pc-linux-gnu/include/firefox/mozilla/dom too many
>> times to be making progress, stopping
>> We have looped trying to restore files in
>> /exherbo/usr/x86_64-pc-linux-gnu/include/firefox too many times to be
>> making progress, stopping
>> We have looped trying to restore files in
>> /exherbo/usr/x86_64-pc-linux-gnu/lib/python3.5/test/__pycache__ too
>> many times to be making progress, stopping
>> We have looped trying to restore files in
>> /exherbo/usr/x86_64-pc-linux-gnu/lib/python2.7/test too many times to
>> be making progress, stopping
>> We have looped trying to restore files in
>> /exherbo/usr/x86_64-pc-linux-gnu/lib/debug/usr/x86_64-pc-linux-gnu/bin
>> too many times to be making progress, stopping
>> We have looped trying to restore files in /exherbo/usr/share/man/man3
>> too many times to be making progress, stopping
>> We have looped trying to restore files in /exherbo/usr/share/man/man1
>> too many times to be making progress, stopping
>> We have looped trying to restore files in
>> /exherbo/usr/share/idl/firefox too many times to be making progress,
>> stopping
>>
>> [root@archiso ~]# btrfs restore -v -l /dev/mapper/rootvol_1
>> bad key ordering 49 50
>> tree key (EXTENT_TREE ROOT_ITEM 0) 6210219163648 level 2
>> tree key (DEV_TREE ROOT_ITEM 0) 3792640000000 level 1
>> tree key (FS_TREE ROOT_ITEM 0) 3792595566592 level 0
>> tree key (CSUM_TREE ROOT_ITEM 0) 6210220048384 level 3
>> tree key (UUID_TREE ROOT_ITEM 0) 3792855105536 level 0
>> tree key (257 ROOT_ITEM 0) 3792551755776 level 2
>> tree key (258 ROOT_ITEM 0) 6210218557440 level 2
>> tree key (3785 ROOT_ITEM 0) 7588191682560 level 0
>> tree key (3786 ROOT_ITEM 0) 7588191633408 level 0
>> tree key (7565 ROOT_ITEM 0) 6210221588480 level 2
>> tree key (7566 ROOT_ITEM 0) 4055721377792 level 0
>> tree key (7567 ROOT_ITEM 101377) 3792849616896 level 2
>> tree key (DATA_RELOC_TREE ROOT_ITEM 0) 3792520544256 level 0
>>
>> Any help available? I tried using btrfs-restore previously on a
>> different machine with only one of the disks plugged in, and it at
>> least showed some files, though the 'Error searching -1' still showed
>> up. (The /home subvolume is the only one I really care about;
>> everything else is nice-to-have.)
>>
>> --
>> Tom Hunt
>
>
>
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Recovery of a raid1 FS
2016-01-07 6:02 ` Qu Wenruo
@ 2016-01-08 1:43 ` Tom Hunt
2016-01-08 1:48 ` Qu Wenruo
0 siblings, 1 reply; 11+ messages in thread
From: Tom Hunt @ 2016-01-08 1:43 UTC (permalink / raw)
To: Qu Wenruo; +Cc: linux-btrfs
I had done this already, but somehow forgot to include it. (Internet
suggests 'btrfs check' is synonym for 'btrfsck'; if this is not the
case, please advise.)
[root@archiso ~]# btrfs check /dev/mapper/rootvol_1
bad key ordering 49 50
Checking filesystem on /dev/mapper/rootvol_1
UUID: 91f7e058-1142-4036-b1f7-4f64163dc8ae
checking extents
bad key ordering 55 56
bad block 6210223521792
Errors found in extent allocation tree or chunk allocation
bad key ordering 55 56
And the other:
[root@archiso ~]# btrfs-debug-tree /dev/mapper/rootvol_1 -b 6210228551680
bad key ordering 49 50
leaf 6210228551680 items 195 free space 244 generation 257371 owner 2
fs uuid 91f7e058-1142-4036-b1f7-4f64163dc8ae
chunk uuid 6abf465c-c677-4879-a4ca-d632e43e01e4
item 0 key (7777093095424 EXTENT_ITEM 4096) itemoff 16217 itemsize 66
extent refs 2 gen 96498 flags DATA
extent data backref root 258 objectid 1319842 offset
16289792 count 1
shared data backref parent 7588669325312 count 1
item 1 key (7777093099520 EXTENT_ITEM 4096) itemoff 16151 itemsize 66
extent refs 2 gen 96498 flags DATA
extent data backref root 258 objectid 1319842 offset
20484096 count 1
shared data backref parent 7588669325312 count 1
item 2 key (7777093103616 EXTENT_ITEM 4096) itemoff 16085 itemsize 66
extent refs 2 gen 96498 flags DATA
extent data backref root 258 objectid 1319842 offset
22581248 count 1
shared data backref parent 7588669325312 count 1
item 3 key (7777093107712 EXTENT_ITEM 4096) itemoff 16019 itemsize 66
extent refs 2 gen 96501 flags DATA
extent data backref root 258 objectid 1319842 offset
56135680 count 1
shared data backref parent 7343916351488 count 1
item 4 key (7777093111808 EXTENT_ITEM 4096) itemoff 15953 itemsize 66
extent refs 2 gen 96501 flags DATA
extent data backref root 258 objectid 1319842 offset
58232832 count 1
shared data backref parent 7343916351488 count 1
item 5 key (7777093115904 EXTENT_ITEM 4096) itemoff 15887 itemsize 66
extent refs 2 gen 96511 flags DATA
extent data backref root 258 objectid 1319842 offset
35164160 count 1
shared data backref parent 7588669325312 count 1
item 6 key (7777093120000 EXTENT_ITEM 4096) itemoff 15821 itemsize 66
extent refs 2 gen 96511 flags DATA
extent data backref root 258 objectid 1319842 offset
37261312 count 1
shared data backref parent 7588669325312 count 1
item 7 key (7777093124096 EXTENT_ITEM 4096) itemoff 15755 itemsize 66
extent refs 2 gen 96521 flags DATA
extent data backref root 258 objectid 1319842 offset
45649920 count 1
shared data backref parent 7343916351488 count 1
item 8 key (7777093128192 EXTENT_ITEM 4096) itemoff 15689 itemsize 66
extent refs 2 gen 96521 flags DATA
extent data backref root 258 objectid 1319842 offset
47747072 count 1
shared data backref parent 7343916351488 count 1
item 9 key (7777093132288 EXTENT_ITEM 4096) itemoff 15636 itemsize 53
extent refs 1 gen 128816 flags DATA
extent data backref root 258 objectid 1747043 offset
208896 count 1
item 10 key (7777093136384 EXTENT_ITEM 4096) itemoff 15583 itemsize 53
extent refs 1 gen 128816 flags DATA
extent data backref root 258 objectid 1747043 offset
1191936 count 1
item 11 key (7777093140480 EXTENT_ITEM 4096) itemoff 15530 itemsize 53
extent refs 1 gen 128816 flags DATA
extent data backref root 258 objectid 1747043 offset
1896448 count 1
item 12 key (7777093144576 EXTENT_ITEM 4096) itemoff 15477 itemsize 53
extent refs 1 gen 128824 flags DATA
extent data backref root 258 objectid 1746670 offset
3141632 count 1
item 13 key (7777093148672 EXTENT_ITEM 4096) itemoff 15424 itemsize 53
extent refs 1 gen 128824 flags DATA
extent data backref root 258 objectid 1746670 offset
7335936 count 1
item 14 key (7777093152768 EXTENT_ITEM 4096) itemoff 15371 itemsize 53
extent refs 1 gen 128827 flags DATA
extent data backref root 258 objectid 1746598 offset
2142208 count 1
item 15 key (7777093156864 EXTENT_ITEM 4096) itemoff 15318 itemsize 53
extent refs 1 gen 128827 flags DATA
extent data backref root 258 objectid 1746598 offset
6336512 count 1
item 16 key (7777093160960 EXTENT_ITEM 1167360) itemoff 15265
itemsize 53
extent refs 1 gen 148358 flags DATA
extent data backref root 258 objectid 800697 offset
219987968 count 1
item 17 key (7777094328320 EXTENT_ITEM 4096) itemoff 15212 itemsize 53
extent refs 1 gen 152899 flags DATA
extent data backref root 258 objectid 2111468 offset
909312 count 1
item 18 key (7777094332416 EXTENT_ITEM 20480) itemoff 15159 itemsize 53
extent refs 1 gen 185891 flags DATA
extent data backref root 7565 objectid 135103 offset 0 count 1
item 19 key (7777094356992 EXTENT_ITEM 18608128) itemoff 15106
itemsize 53
extent refs 1 gen 93646 flags DATA
extent data backref root 257 objectid 1798430 offset 0 count 1
item 20 key (7777112965120 EXTENT_ITEM 2465792) itemoff 15053
itemsize 53
extent refs 1 gen 93647 flags DATA
extent data backref root 257 objectid 1798304 offset 0 count 1
item 21 key (7777115430912 EXTENT_ITEM 2441216) itemoff 15000
itemsize 53
extent refs 1 gen 93647 flags DATA
extent data backref root 257 objectid 1798413 offset 0 count 1
item 22 key (7777117872128 EXTENT_ITEM 2617344) itemoff 14947
itemsize 53
extent refs 1 gen 93647 flags DATA
extent data backref root 257 objectid 1798416 offset 0 count 1
item 23 key (7777120489472 EXTENT_ITEM 2592768) itemoff 14894
itemsize 53
extent refs 1 gen 93647 flags DATA
extent data backref root 257 objectid 1798419 offset 0 count 1
item 24 key (7777123082240 EXTENT_ITEM 2355200) itemoff 14841
itemsize 53
extent refs 1 gen 93647 flags DATA
extent data backref root 257 objectid 1798422 offset 0 count 1
item 25 key (7777125437440 EXTENT_ITEM 2469888) itemoff 14788
itemsize 53
extent refs 1 gen 93647 flags DATA
extent data backref root 257 objectid 1798425 offset 0 count 1
item 26 key (7777127907328 EXTENT_ITEM 2646016) itemoff 14735
itemsize 53
extent refs 1 gen 93647 flags DATA
extent data backref root 257 objectid 1798428 offset 0 count 1
item 27 key (7777130553344 EXTENT_ITEM 2461696) itemoff 14682
itemsize 53
extent refs 1 gen 93647 flags DATA
extent data backref root 257 objectid 1798446 offset 0 count 1
item 28 key (7777133015040 EXTENT_ITEM 2637824) itemoff 14629
itemsize 53
extent refs 1 gen 93647 flags DATA
extent data backref root 257 objectid 1798449 offset 0 count 1
item 29 key (7777135652864 EXTENT_ITEM 2609152) itemoff 14576
itemsize 53
extent refs 1 gen 93647 flags DATA
extent data backref root 257 objectid 1798452 offset 0 count 1
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extent refs 1 gen 86597 flags DATA
extent data backref root 258 objectid 1257819 offset
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extent refs 1 gen 86597 flags DATA
extent data backref root 258 objectid 1257819 offset
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On Wed, Jan 6, 2016 at 11:02 PM, Qu Wenruo <quwenruo@cn.fujitsu.com> wrote:
> Did you tried btrfsck without --repair?
>
> And would you please paste the output of the following command?
>
> # btrfs-debug-tree <YOUR_DEVICE> -b 6210228551680
>
> Thanks,
> Qu
>
>
> Tom Hunt wrote on 2016/01/06 22:16 -0700:
>>
>> Some things I missed:
>>
>> [root@archiso ~]# uname -a
>> Linux archiso 4.2.5-1-ARCH #1 SMP PREEMPT Tue Oct 27 08:13:28 CET 2015
>> x86_64 GNU/Linux
>> [root@archiso ~]# btrfs --version
>> btrfs-progs v4.3.1
>> [root@archiso ~]# btrfs fi show
>> Label: none uuid: 91f7e058-1142-4036-b1f7-4f64163dc8ae
>> Total devices 2 FS bytes used 3.84TiB
>> devid 1 size 5.45TiB used 3.86TiB path /dev/mapper/rootvol_1
>> devid 2 size 5.45TiB used 3.86TiB path /dev/mapper/rootvol_2
>>
>>
>> This is a liveUSB, but the machine that was running was also an up-to-date
>> Arch.
>>
>> On Wed, Jan 6, 2016 at 9:02 PM, Tom Hunt <tomdicksonhunt@gmail.com> wrote:
>>>
>>> I've got a two-disk RAID1 btrfs volume, which crashed for no apparent
>>> reason and was corrupt on next boot. Relevant command runs and
>>> outputs:
>>>
>>> [root@archiso ~]# mount -osubvol=.,ro,recovery /dev/mapper/rootvol_1 mnt
>>> mount: wrong fs type, bad option, bad superblock on
>>> /dev/mapper/rootvol_1,
>>> missing codepage or helper program, or other error
>>>
>>> In some cases useful info is found in syslog - try
>>> dmesg | tail or so.
>>> [ 372.665800] Btrfs loaded
>>> [ 372.666481] BTRFS: device fsid 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>> devid 1 transid 257371 /dev/dm-4
>>> [ 389.339860] BTRFS: device fsid 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>> devid 2 transid 257371 /dev/dm-5
>>> [ 781.695931] BTRFS info (device dm-5): enabling auto recovery
>>> [ 781.695933] BTRFS info (device dm-5): disk space caching is enabled
>>> [ 781.695934] BTRFS: has skinny extents
>>> [ 781.776198] BTRFS: bdev /dev/mapper/rootvol_2 errs: wr 0, rd 0,
>>> flush 0, corrupt 10, gen 426
>>> [ 791.982552] BTRFS critical (device dm-5): corrupt leaf, bad key
>>> order: block=6210228551680,root=1, slot=49
>>> [ 791.982836] BTRFS critical (device dm-5): corrupt leaf, bad key
>>> order: block=6210228551680,root=1, slot=49
>>> [ 791.982862] BTRFS: Failed to read block groups: -5
>>> [ 792.030513] BTRFS: open_ctree failed
>>>
>>> [root@archiso ~]# btrfs restore -D /dev/mapper/rootvol_1
>>> /root/tmp_data | tee data_mnt/tom/restore_list.txt
>>> bad key ordering 49 50
>>> Error searching -1
>>> Error searching /root/tmp_data/home
>>> This is a dry-run, no files are going to be restored
>>> We have looped trying to restore files in
>>> /exherbo/root/squashfs-root/usr/bin too many times to be making
>>> progress, stopping
>>> We have looped trying to restore files in
>>> /exherbo/root/squashfs-root/usr/share/man/man1 too many times to be
>>> making progress, stopping
>>> We have looped trying to restore files in
>>> /exherbo/root/squashfs-root/usr/share/man/man3 too many times to be
>>> making progress, stopping
>>> We have looped trying to restore files in
>>> /exherbo/usr/x86_64-pc-linux-gnu/bin too many times to be making
>>> progress, stopping
>>> We have looped trying to restore files in
>>> /exherbo/usr/x86_64-pc-linux-gnu/include/firefox/mozilla/dom too many
>>> times to be making progress, stopping
>>> We have looped trying to restore files in
>>> /exherbo/usr/x86_64-pc-linux-gnu/include/firefox too many times to be
>>> making progress, stopping
>>> We have looped trying to restore files in
>>> /exherbo/usr/x86_64-pc-linux-gnu/lib/python3.5/test/__pycache__ too
>>> many times to be making progress, stopping
>>> We have looped trying to restore files in
>>> /exherbo/usr/x86_64-pc-linux-gnu/lib/python2.7/test too many times to
>>> be making progress, stopping
>>> We have looped trying to restore files in
>>> /exherbo/usr/x86_64-pc-linux-gnu/lib/debug/usr/x86_64-pc-linux-gnu/bin
>>> too many times to be making progress, stopping
>>> We have looped trying to restore files in /exherbo/usr/share/man/man3
>>> too many times to be making progress, stopping
>>> We have looped trying to restore files in /exherbo/usr/share/man/man1
>>> too many times to be making progress, stopping
>>> We have looped trying to restore files in
>>> /exherbo/usr/share/idl/firefox too many times to be making progress,
>>> stopping
>>>
>>> [root@archiso ~]# btrfs restore -v -l /dev/mapper/rootvol_1
>>> bad key ordering 49 50
>>> tree key (EXTENT_TREE ROOT_ITEM 0) 6210219163648 level 2
>>> tree key (DEV_TREE ROOT_ITEM 0) 3792640000000 level 1
>>> tree key (FS_TREE ROOT_ITEM 0) 3792595566592 level 0
>>> tree key (CSUM_TREE ROOT_ITEM 0) 6210220048384 level 3
>>> tree key (UUID_TREE ROOT_ITEM 0) 3792855105536 level 0
>>> tree key (257 ROOT_ITEM 0) 3792551755776 level 2
>>> tree key (258 ROOT_ITEM 0) 6210218557440 level 2
>>> tree key (3785 ROOT_ITEM 0) 7588191682560 level 0
>>> tree key (3786 ROOT_ITEM 0) 7588191633408 level 0
>>> tree key (7565 ROOT_ITEM 0) 6210221588480 level 2
>>> tree key (7566 ROOT_ITEM 0) 4055721377792 level 0
>>> tree key (7567 ROOT_ITEM 101377) 3792849616896 level 2
>>> tree key (DATA_RELOC_TREE ROOT_ITEM 0) 3792520544256 level 0
>>>
>>> Any help available? I tried using btrfs-restore previously on a
>>> different machine with only one of the disks plugged in, and it at
>>> least showed some files, though the 'Error searching -1' still showed
>>> up. (The /home subvolume is the only one I really care about;
>>> everything else is nice-to-have.)
>>>
>>> --
>>> Tom Hunt
>>
>>
>>
>>
>
>
--
Tom Dickson-Hunt
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Recovery of a raid1 FS
2016-01-08 1:43 ` Tom Hunt
@ 2016-01-08 1:48 ` Qu Wenruo
2016-01-08 2:02 ` Tom Hunt
0 siblings, 1 reply; 11+ messages in thread
From: Qu Wenruo @ 2016-01-08 1:48 UTC (permalink / raw)
To: Tom Hunt; +Cc: linux-btrfs
Tom Hunt wrote on 2016/01/07 18:43 -0700:
> I had done this already, but somehow forgot to include it. (Internet
> suggests 'btrfs check' is synonym for 'btrfsck'; if this is not the
> case, please advise.)
>
> [root@archiso ~]# btrfs check /dev/mapper/rootvol_1
> bad key ordering 49 50
> Checking filesystem on /dev/mapper/rootvol_1
> UUID: 91f7e058-1142-4036-b1f7-4f64163dc8ae
> checking extents
> bad key ordering 55 56
> bad block 6210223521792
> Errors found in extent allocation tree or chunk allocation
> bad key ordering 55 56
Does the sudden end means a segfault?
>
> And the other:
>
> [root@archiso ~]# btrfs-debug-tree /dev/mapper/rootvol_1 -b 6210228551680
> bad key ordering 49 50
> leaf 6210228551680 items 195 free space 244 generation 257371 owner 2
That's extent tree, not a big problem as the whole extent tree can be
easily rebuilt.
And what's the output of btrfs-debug-tree /dev/mapper/rootvol_1 -b
6210223521792?
If btrfs-debug-tree can still output things like below, and the leaf's
owner is still 2, I'd recommend to run btrfsck --init-extent-tree, which
should has a good chance to fix it.
Although even in that case, I'm not 100% sure if it will work, or do
more damage...
Thanks,
Qu
> fs uuid 91f7e058-1142-4036-b1f7-4f64163dc8ae
> chunk uuid 6abf465c-c677-4879-a4ca-d632e43e01e4
> item 0 key (7777093095424 EXTENT_ITEM 4096) itemoff 16217 itemsize 66
> extent refs 2 gen 96498 flags DATA
> extent data backref root 258 objectid 1319842 offset
> 16289792 count 1
> shared data backref parent 7588669325312 count 1
> item 1 key (7777093099520 EXTENT_ITEM 4096) itemoff 16151 itemsize 66
> extent refs 2 gen 96498 flags DATA
> extent data backref root 258 objectid 1319842 offset
> 20484096 count 1
> shared data backref parent 7588669325312 count 1
> item 2 key (7777093103616 EXTENT_ITEM 4096) itemoff 16085 itemsize 66
> extent refs 2 gen 96498 flags DATA
> extent data backref root 258 objectid 1319842 offset
> 22581248 count 1
> shared data backref parent 7588669325312 count 1
> item 3 key (7777093107712 EXTENT_ITEM 4096) itemoff 16019 itemsize 66
> extent refs 2 gen 96501 flags DATA
> extent data backref root 258 objectid 1319842 offset
> 56135680 count 1
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> item 4 key (7777093111808 EXTENT_ITEM 4096) itemoff 15953 itemsize 66
> extent refs 2 gen 96501 flags DATA
> extent data backref root 258 objectid 1319842 offset
> 58232832 count 1
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> extent refs 2 gen 96511 flags DATA
> extent data backref root 258 objectid 1319842 offset
> 35164160 count 1
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> extent data backref root 258 objectid 1319842 offset
> 37261312 count 1
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> extent refs 2 gen 96521 flags DATA
> extent data backref root 258 objectid 1319842 offset
> 45649920 count 1
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> extent refs 2 gen 96521 flags DATA
> extent data backref root 258 objectid 1319842 offset
> 47747072 count 1
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> 1191936 count 1
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> 1896448 count 1
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> 3141632 count 1
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> 6336512 count 1
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> itemsize 53
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> 219987968 count 1
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> 909312 count 1
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> itemsize 53
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> item 20 key (7777112965120 EXTENT_ITEM 2465792) itemoff 15053
> itemsize 53
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> itemsize 53
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> itemsize 53
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> itemsize 53
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> itemsize 53
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> itemsize 53
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> itemsize 53
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> itemsize 53
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>
> On Wed, Jan 6, 2016 at 11:02 PM, Qu Wenruo <quwenruo@cn.fujitsu.com> wrote:
>> Did you tried btrfsck without --repair?
>>
>> And would you please paste the output of the following command?
>>
>> # btrfs-debug-tree <YOUR_DEVICE> -b 6210228551680
>>
>> Thanks,
>> Qu
>>
>>
>> Tom Hunt wrote on 2016/01/06 22:16 -0700:
>>>
>>> Some things I missed:
>>>
>>> [root@archiso ~]# uname -a
>>> Linux archiso 4.2.5-1-ARCH #1 SMP PREEMPT Tue Oct 27 08:13:28 CET 2015
>>> x86_64 GNU/Linux
>>> [root@archiso ~]# btrfs --version
>>> btrfs-progs v4.3.1
>>> [root@archiso ~]# btrfs fi show
>>> Label: none uuid: 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>> Total devices 2 FS bytes used 3.84TiB
>>> devid 1 size 5.45TiB used 3.86TiB path /dev/mapper/rootvol_1
>>> devid 2 size 5.45TiB used 3.86TiB path /dev/mapper/rootvol_2
>>>
>>>
>>> This is a liveUSB, but the machine that was running was also an up-to-date
>>> Arch.
>>>
>>> On Wed, Jan 6, 2016 at 9:02 PM, Tom Hunt <tomdicksonhunt@gmail.com> wrote:
>>>>
>>>> I've got a two-disk RAID1 btrfs volume, which crashed for no apparent
>>>> reason and was corrupt on next boot. Relevant command runs and
>>>> outputs:
>>>>
>>>> [root@archiso ~]# mount -osubvol=.,ro,recovery /dev/mapper/rootvol_1 mnt
>>>> mount: wrong fs type, bad option, bad superblock on
>>>> /dev/mapper/rootvol_1,
>>>> missing codepage or helper program, or other error
>>>>
>>>> In some cases useful info is found in syslog - try
>>>> dmesg | tail or so.
>>>> [ 372.665800] Btrfs loaded
>>>> [ 372.666481] BTRFS: device fsid 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>>> devid 1 transid 257371 /dev/dm-4
>>>> [ 389.339860] BTRFS: device fsid 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>>> devid 2 transid 257371 /dev/dm-5
>>>> [ 781.695931] BTRFS info (device dm-5): enabling auto recovery
>>>> [ 781.695933] BTRFS info (device dm-5): disk space caching is enabled
>>>> [ 781.695934] BTRFS: has skinny extents
>>>> [ 781.776198] BTRFS: bdev /dev/mapper/rootvol_2 errs: wr 0, rd 0,
>>>> flush 0, corrupt 10, gen 426
>>>> [ 791.982552] BTRFS critical (device dm-5): corrupt leaf, bad key
>>>> order: block=6210228551680,root=1, slot=49
>>>> [ 791.982836] BTRFS critical (device dm-5): corrupt leaf, bad key
>>>> order: block=6210228551680,root=1, slot=49
>>>> [ 791.982862] BTRFS: Failed to read block groups: -5
>>>> [ 792.030513] BTRFS: open_ctree failed
>>>>
>>>> [root@archiso ~]# btrfs restore -D /dev/mapper/rootvol_1
>>>> /root/tmp_data | tee data_mnt/tom/restore_list.txt
>>>> bad key ordering 49 50
>>>> Error searching -1
>>>> Error searching /root/tmp_data/home
>>>> This is a dry-run, no files are going to be restored
>>>> We have looped trying to restore files in
>>>> /exherbo/root/squashfs-root/usr/bin too many times to be making
>>>> progress, stopping
>>>> We have looped trying to restore files in
>>>> /exherbo/root/squashfs-root/usr/share/man/man1 too many times to be
>>>> making progress, stopping
>>>> We have looped trying to restore files in
>>>> /exherbo/root/squashfs-root/usr/share/man/man3 too many times to be
>>>> making progress, stopping
>>>> We have looped trying to restore files in
>>>> /exherbo/usr/x86_64-pc-linux-gnu/bin too many times to be making
>>>> progress, stopping
>>>> We have looped trying to restore files in
>>>> /exherbo/usr/x86_64-pc-linux-gnu/include/firefox/mozilla/dom too many
>>>> times to be making progress, stopping
>>>> We have looped trying to restore files in
>>>> /exherbo/usr/x86_64-pc-linux-gnu/include/firefox too many times to be
>>>> making progress, stopping
>>>> We have looped trying to restore files in
>>>> /exherbo/usr/x86_64-pc-linux-gnu/lib/python3.5/test/__pycache__ too
>>>> many times to be making progress, stopping
>>>> We have looped trying to restore files in
>>>> /exherbo/usr/x86_64-pc-linux-gnu/lib/python2.7/test too many times to
>>>> be making progress, stopping
>>>> We have looped trying to restore files in
>>>> /exherbo/usr/x86_64-pc-linux-gnu/lib/debug/usr/x86_64-pc-linux-gnu/bin
>>>> too many times to be making progress, stopping
>>>> We have looped trying to restore files in /exherbo/usr/share/man/man3
>>>> too many times to be making progress, stopping
>>>> We have looped trying to restore files in /exherbo/usr/share/man/man1
>>>> too many times to be making progress, stopping
>>>> We have looped trying to restore files in
>>>> /exherbo/usr/share/idl/firefox too many times to be making progress,
>>>> stopping
>>>>
>>>> [root@archiso ~]# btrfs restore -v -l /dev/mapper/rootvol_1
>>>> bad key ordering 49 50
>>>> tree key (EXTENT_TREE ROOT_ITEM 0) 6210219163648 level 2
>>>> tree key (DEV_TREE ROOT_ITEM 0) 3792640000000 level 1
>>>> tree key (FS_TREE ROOT_ITEM 0) 3792595566592 level 0
>>>> tree key (CSUM_TREE ROOT_ITEM 0) 6210220048384 level 3
>>>> tree key (UUID_TREE ROOT_ITEM 0) 3792855105536 level 0
>>>> tree key (257 ROOT_ITEM 0) 3792551755776 level 2
>>>> tree key (258 ROOT_ITEM 0) 6210218557440 level 2
>>>> tree key (3785 ROOT_ITEM 0) 7588191682560 level 0
>>>> tree key (3786 ROOT_ITEM 0) 7588191633408 level 0
>>>> tree key (7565 ROOT_ITEM 0) 6210221588480 level 2
>>>> tree key (7566 ROOT_ITEM 0) 4055721377792 level 0
>>>> tree key (7567 ROOT_ITEM 101377) 3792849616896 level 2
>>>> tree key (DATA_RELOC_TREE ROOT_ITEM 0) 3792520544256 level 0
>>>>
>>>> Any help available? I tried using btrfs-restore previously on a
>>>> different machine with only one of the disks plugged in, and it at
>>>> least showed some files, though the 'Error searching -1' still showed
>>>> up. (The /home subvolume is the only one I really care about;
>>>> everything else is nice-to-have.)
>>>>
>>>> --
>>>> Tom Hunt
>>>
>>>
>>>
>>>
>>
>>
>
>
>
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Recovery of a raid1 FS
2016-01-08 1:48 ` Qu Wenruo
@ 2016-01-08 2:02 ` Tom Hunt
2016-01-08 2:26 ` Qu Wenruo
0 siblings, 1 reply; 11+ messages in thread
From: Tom Hunt @ 2016-01-08 2:02 UTC (permalink / raw)
To: Qu Wenruo; +Cc: linux-btrfs
> Does the sudden end means a segfault?
The sudden end means an end. The program terminated without any
further output or error indication.
> And what's the output of btrfs-debug-tree /dev/mapper/rootvol_1 -b 6210223521792?
[root@archiso ~]# btrfs-debug-tree /dev/mapper/rootvol_1 -b 6210223521792
bad key ordering 49 50
leaf 6210223521792 items 123 free space 55 generation 257371 owner 1
fs uuid 91f7e058-1142-4036-b1f7-4f64163dc8ae
chunk uuid 6abf465c-c677-4879-a4ca-d632e43e01e4
item 0 key (7302 INODE_ITEM 0) itemoff 16123 itemsize 160
inode generation 37573 transid 37573 size 262144 nbytes 1048576
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 1 key (7302 EXTENT_DATA 0) itemoff 16070 itemsize 53
extent data disk byte 7564439363584 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 2 key (7303 INODE_ITEM 0) itemoff 15910 itemsize 160
inode generation 37573 transid 37573 size 262144 nbytes 786432
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 3 key (7303 EXTENT_DATA 0) itemoff 15857 itemsize 53
extent data disk byte 7564439662592 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 4 key (7304 INODE_ITEM 0) itemoff 15697 itemsize 160
inode generation 36550 transid 36550 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 5 key (7304 EXTENT_DATA 0) itemoff 15644 itemsize 53
extent data disk byte 7517322158080 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
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inode generation 37573 transid 37573 size 262144 nbytes 524288
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rdev 0 flags 0x1b
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extent data disk byte 7564439941120 nr 262144
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inode generation 37573 transid 37573 size 262144 nbytes 786432
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inode generation 37576 transid 37576 size 262144 nbytes 1310720
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inode generation 36586 transid 36586 size 262144 nbytes 262144
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inode generation 257365 transid 257365 size 262144
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inode generation 37590 transid 37590 size 262144 nbytes 786432
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inode generation 36625 transid 36625 size 262144 nbytes 262144
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nbytes 13501202432
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nbytes 16589520896
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> If btrfs-debug-tree can still output things like below, and the leaf's owner is still 2, I'd recommend to run btrfsck --init-extent-tree, which should has a good chance to fix it.
> Although even in that case, I'm not 100% sure if it will work, or do more damage...
Would it be a sensible precaution to unplug one disk and attempt
recovery on a single one? If I understand correctly, all the data
should be available on either. This disk is quite significant to me,
and the other option is restoring from a week-old backup; annoying, if
not fatal.
For the record, I've also already bought new disks and will be
operating with those going forward, so a transfer of data will be
necessary in any case. (There was the possibility of hardware damage
from a flood a little while ago, and even if this is unrelated, I'm
paranoid about this volume.)
On Thu, Jan 7, 2016 at 6:48 PM, Qu Wenruo <quwenruo@cn.fujitsu.com> wrote:
>
>
> Tom Hunt wrote on 2016/01/07 18:43 -0700:
>>
>> I had done this already, but somehow forgot to include it. (Internet
>> suggests 'btrfs check' is synonym for 'btrfsck'; if this is not the
>> case, please advise.)
>>
>> [root@archiso ~]# btrfs check /dev/mapper/rootvol_1
>> bad key ordering 49 50
>> Checking filesystem on /dev/mapper/rootvol_1
>> UUID: 91f7e058-1142-4036-b1f7-4f64163dc8ae
>> checking extents
>> bad key ordering 55 56
>> bad block 6210223521792
>> Errors found in extent allocation tree or chunk allocation
>> bad key ordering 55 56
>
>
> Does the sudden end means a segfault?
>
>>
>> And the other:
>>
>> [root@archiso ~]# btrfs-debug-tree /dev/mapper/rootvol_1 -b 6210228551680
>> bad key ordering 49 50
>> leaf 6210228551680 items 195 free space 244 generation 257371 owner 2
>
>
> That's extent tree, not a big problem as the whole extent tree can be easily
> rebuilt.
>
> And what's the output of btrfs-debug-tree /dev/mapper/rootvol_1 -b
> 6210223521792?
>
> If btrfs-debug-tree can still output things like below, and the leaf's owner
> is still 2, I'd recommend to run btrfsck --init-extent-tree, which should
> has a good chance to fix it.
>
> Although even in that case, I'm not 100% sure if it will work, or do more
> damage...
>
> Thanks,
> Qu
>
>
>> fs uuid 91f7e058-1142-4036-b1f7-4f64163dc8ae
>> chunk uuid 6abf465c-c677-4879-a4ca-d632e43e01e4
>> item 0 key (7777093095424 EXTENT_ITEM 4096) itemoff 16217
>> itemsize 66
>> extent refs 2 gen 96498 flags DATA
>> extent data backref root 258 objectid 1319842 offset
>> 16289792 count 1
>> shared data backref parent 7588669325312 count 1
>> item 1 key (7777093099520 EXTENT_ITEM 4096) itemoff 16151
>> itemsize 66
>> extent refs 2 gen 96498 flags DATA
>> extent data backref root 258 objectid 1319842 offset
>> 20484096 count 1
>> shared data backref parent 7588669325312 count 1
>> item 2 key (7777093103616 EXTENT_ITEM 4096) itemoff 16085
>> itemsize 66
>> extent refs 2 gen 96498 flags DATA
>> extent data backref root 258 objectid 1319842 offset
>> 22581248 count 1
>> shared data backref parent 7588669325312 count 1
>> item 3 key (7777093107712 EXTENT_ITEM 4096) itemoff 16019
>> itemsize 66
>> extent refs 2 gen 96501 flags DATA
>> extent data backref root 258 objectid 1319842 offset
>> 56135680 count 1
>> shared data backref parent 7343916351488 count 1
>> item 4 key (7777093111808 EXTENT_ITEM 4096) itemoff 15953
>> itemsize 66
>> extent refs 2 gen 96501 flags DATA
>> extent data backref root 258 objectid 1319842 offset
>> 58232832 count 1
>> shared data backref parent 7343916351488 count 1
>> item 5 key (7777093115904 EXTENT_ITEM 4096) itemoff 15887
>> itemsize 66
>> extent refs 2 gen 96511 flags DATA
>> extent data backref root 258 objectid 1319842 offset
>> 35164160 count 1
>> shared data backref parent 7588669325312 count 1
>> item 6 key (7777093120000 EXTENT_ITEM 4096) itemoff 15821
>> itemsize 66
>> extent refs 2 gen 96511 flags DATA
>> extent data backref root 258 objectid 1319842 offset
>> 37261312 count 1
>> shared data backref parent 7588669325312 count 1
>> item 7 key (7777093124096 EXTENT_ITEM 4096) itemoff 15755
>> itemsize 66
>> extent refs 2 gen 96521 flags DATA
>> extent data backref root 258 objectid 1319842 offset
>> 45649920 count 1
>> shared data backref parent 7343916351488 count 1
>> item 8 key (7777093128192 EXTENT_ITEM 4096) itemoff 15689
>> itemsize 66
>> extent refs 2 gen 96521 flags DATA
>> extent data backref root 258 objectid 1319842 offset
>> 47747072 count 1
>> shared data backref parent 7343916351488 count 1
>> item 9 key (7777093132288 EXTENT_ITEM 4096) itemoff 15636
>> itemsize 53
>> extent refs 1 gen 128816 flags DATA
>> extent data backref root 258 objectid 1747043 offset
>> 208896 count 1
>> item 10 key (7777093136384 EXTENT_ITEM 4096) itemoff 15583
>> itemsize 53
>> extent refs 1 gen 128816 flags DATA
>> extent data backref root 258 objectid 1747043 offset
>> 1191936 count 1
>> item 11 key (7777093140480 EXTENT_ITEM 4096) itemoff 15530
>> itemsize 53
>> extent refs 1 gen 128816 flags DATA
>> extent data backref root 258 objectid 1747043 offset
>> 1896448 count 1
>> item 12 key (7777093144576 EXTENT_ITEM 4096) itemoff 15477
>> itemsize 53
>> extent refs 1 gen 128824 flags DATA
>> extent data backref root 258 objectid 1746670 offset
>> 3141632 count 1
>> item 13 key (7777093148672 EXTENT_ITEM 4096) itemoff 15424
>> itemsize 53
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>> extent data backref root 258 objectid 1746670 offset
>> 7335936 count 1
>> item 14 key (7777093152768 EXTENT_ITEM 4096) itemoff 15371
>> itemsize 53
>> extent refs 1 gen 128827 flags DATA
>> extent data backref root 258 objectid 1746598 offset
>> 2142208 count 1
>> item 15 key (7777093156864 EXTENT_ITEM 4096) itemoff 15318
>> itemsize 53
>> extent refs 1 gen 128827 flags DATA
>> extent data backref root 258 objectid 1746598 offset
>> 6336512 count 1
>> item 16 key (7777093160960 EXTENT_ITEM 1167360) itemoff 15265
>> itemsize 53
>> extent refs 1 gen 148358 flags DATA
>> extent data backref root 258 objectid 800697 offset
>> 219987968 count 1
>> item 17 key (7777094328320 EXTENT_ITEM 4096) itemoff 15212
>> itemsize 53
>> extent refs 1 gen 152899 flags DATA
>> extent data backref root 258 objectid 2111468 offset
>> 909312 count 1
>> item 18 key (7777094332416 EXTENT_ITEM 20480) itemoff 15159
>> itemsize 53
>> extent refs 1 gen 185891 flags DATA
>> extent data backref root 7565 objectid 135103 offset 0
>> count 1
>> item 19 key (7777094356992 EXTENT_ITEM 18608128) itemoff 15106
>> itemsize 53
>> extent refs 1 gen 93646 flags DATA
>> extent data backref root 257 objectid 1798430 offset 0
>> count 1
>> item 20 key (7777112965120 EXTENT_ITEM 2465792) itemoff 15053
>> itemsize 53
>> extent refs 1 gen 93647 flags DATA
>> extent data backref root 257 objectid 1798304 offset 0
>> count 1
>> item 21 key (7777115430912 EXTENT_ITEM 2441216) itemoff 15000
>> itemsize 53
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>> extent data backref root 257 objectid 1798413 offset 0
>> count 1
>> item 22 key (7777117872128 EXTENT_ITEM 2617344) itemoff 14947
>> itemsize 53
>> extent refs 1 gen 93647 flags DATA
>> extent data backref root 257 objectid 1798416 offset 0
>> count 1
>> item 23 key (7777120489472 EXTENT_ITEM 2592768) itemoff 14894
>> itemsize 53
>> extent refs 1 gen 93647 flags DATA
>> extent data backref root 257 objectid 1798419 offset 0
>> count 1
>> item 24 key (7777123082240 EXTENT_ITEM 2355200) itemoff 14841
>> itemsize 53
>> extent refs 1 gen 93647 flags DATA
>> extent data backref root 257 objectid 1798422 offset 0
>> count 1
>> item 25 key (7777125437440 EXTENT_ITEM 2469888) itemoff 14788
>> itemsize 53
>> extent refs 1 gen 93647 flags DATA
>> extent data backref root 257 objectid 1798425 offset 0
>> count 1
>> item 26 key (7777127907328 EXTENT_ITEM 2646016) itemoff 14735
>> itemsize 53
>> extent refs 1 gen 93647 flags DATA
>> extent data backref root 257 objectid 1798428 offset 0
>> count 1
>> item 27 key (7777130553344 EXTENT_ITEM 2461696) itemoff 14682
>> itemsize 53
>> extent refs 1 gen 93647 flags DATA
>> extent data backref root 257 objectid 1798446 offset 0
>> count 1
>> item 28 key (7777133015040 EXTENT_ITEM 2637824) itemoff 14629
>> itemsize 53
>> extent refs 1 gen 93647 flags DATA
>> extent data backref root 257 objectid 1798449 offset 0
>> count 1
>> item 29 key (7777135652864 EXTENT_ITEM 2609152) itemoff 14576
>> itemsize 53
>> extent refs 1 gen 93647 flags DATA
>> extent data backref root 257 objectid 1798452 offset 0
>> count 1
>> item 30 key (7777138262016 EXTENT_ITEM 2375680) itemoff 14523
>> itemsize 53
>> extent refs 1 gen 93647 flags DATA
>> extent data backref root 257 objectid 1798455 offset 0
>> count 1
>> item 31 key (7777140637696 EXTENT_ITEM 2490368) itemoff 14470
>> itemsize 53
>> extent refs 1 gen 93647 flags DATA
>> extent data backref root 257 objectid 1798458 offset 0
>> count 1
>> item 32 key (7777143128064 EXTENT_ITEM 2666496) itemoff 14417
>> itemsize 53
>> extent refs 1 gen 93647 flags DATA
>> extent data backref root 257 objectid 1798461 offset 0
>> count 1
>> item 33 key (7777145794560 EXTENT_ITEM 348160) itemoff 14364
>> itemsize 53
>> extent refs 1 gen 148361 flags DATA
>> extent data backref root 258 objectid 800697 offset
>> 221151232 count 1
>> item 34 key (7777146142720 EXTENT_ITEM 913408) itemoff 14311
>> itemsize 53
>> extent refs 1 gen 152889 flags DATA
>> extent data backref root 258 objectid 2111468 offset 0
>> count 1
>> item 35 key (7777147056128 EXTENT_ITEM 32768) itemoff 14258
>> itemsize 53
>> extent refs 1 gen 185891 flags DATA
>> extent data backref root 7565 objectid 135085 offset 0
>> count 1
>> item 36 key (7777147088896 EXTENT_ITEM 12288) itemoff 14205
>> itemsize 53
>> extent refs 1 gen 185891 flags DATA
>> extent data backref root 7565 objectid 135105 offset 0
>> count 1
>> item 37 key (7777147105280 EXTENT_ITEM 10260480) itemoff 14152
>> itemsize 53
>> extent refs 3 gen 128803 flags DATA
>> extent data backref root 258 objectid 1746598 offset 0
>> count 3
>> item 38 key (7777157365760 EXTENT_ITEM 4096) itemoff 14099
>> itemsize 53
>> extent refs 1 gen 257306 flags DATA
>> extent data backref root 258 objectid 839874 offset
>> 1716224 count 1
>> item 39 key (7777157369856 EXTENT_ITEM 262144) itemoff 14046
>> itemsize 53
>> extent refs 1 gen 239739 flags DATA
>> extent data backref root 1 objectid 4315 offset 0 count 1
>> item 40 key (7777157632000 EXTENT_ITEM 4096) itemoff 13993
>> itemsize 53
>> extent refs 1 gen 257306 flags DATA
>> extent data backref root 258 objectid 839874 offset
>> 1724416 count 1
>> item 41 key (7777157636096 EXTENT_ITEM 28672) itemoff 13940
>> itemsize 53
>> extent refs 1 gen 239755 flags DATA
>> extent data backref root 7565 objectid 218350 offset 0
>> count 1
>> item 42 key (7777157672960 EXTENT_ITEM 262144) itemoff 13887
>> itemsize 53
>> extent refs 1 gen 251770 flags DATA
>> extent data backref root 1 objectid 7446 offset 0 count 1
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>>
>> On Wed, Jan 6, 2016 at 11:02 PM, Qu Wenruo <quwenruo@cn.fujitsu.com>
>> wrote:
>>>
>>> Did you tried btrfsck without --repair?
>>>
>>> And would you please paste the output of the following command?
>>>
>>> # btrfs-debug-tree <YOUR_DEVICE> -b 6210228551680
>>>
>>> Thanks,
>>> Qu
>>>
>>>
>>> Tom Hunt wrote on 2016/01/06 22:16 -0700:
>>>>
>>>>
>>>> Some things I missed:
>>>>
>>>> [root@archiso ~]# uname -a
>>>> Linux archiso 4.2.5-1-ARCH #1 SMP PREEMPT Tue Oct 27 08:13:28 CET 2015
>>>> x86_64 GNU/Linux
>>>> [root@archiso ~]# btrfs --version
>>>> btrfs-progs v4.3.1
>>>> [root@archiso ~]# btrfs fi show
>>>> Label: none uuid: 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>>> Total devices 2 FS bytes used 3.84TiB
>>>> devid 1 size 5.45TiB used 3.86TiB path
>>>> /dev/mapper/rootvol_1
>>>> devid 2 size 5.45TiB used 3.86TiB path
>>>> /dev/mapper/rootvol_2
>>>>
>>>>
>>>> This is a liveUSB, but the machine that was running was also an
>>>> up-to-date
>>>> Arch.
>>>>
>>>> On Wed, Jan 6, 2016 at 9:02 PM, Tom Hunt <tomdicksonhunt@gmail.com>
>>>> wrote:
>>>>>
>>>>>
>>>>> I've got a two-disk RAID1 btrfs volume, which crashed for no apparent
>>>>> reason and was corrupt on next boot. Relevant command runs and
>>>>> outputs:
>>>>>
>>>>> [root@archiso ~]# mount -osubvol=.,ro,recovery /dev/mapper/rootvol_1
>>>>> mnt
>>>>> mount: wrong fs type, bad option, bad superblock on
>>>>> /dev/mapper/rootvol_1,
>>>>> missing codepage or helper program, or other error
>>>>>
>>>>> In some cases useful info is found in syslog - try
>>>>> dmesg | tail or so.
>>>>> [ 372.665800] Btrfs loaded
>>>>> [ 372.666481] BTRFS: device fsid 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>>>> devid 1 transid 257371 /dev/dm-4
>>>>> [ 389.339860] BTRFS: device fsid 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>>>> devid 2 transid 257371 /dev/dm-5
>>>>> [ 781.695931] BTRFS info (device dm-5): enabling auto recovery
>>>>> [ 781.695933] BTRFS info (device dm-5): disk space caching is enabled
>>>>> [ 781.695934] BTRFS: has skinny extents
>>>>> [ 781.776198] BTRFS: bdev /dev/mapper/rootvol_2 errs: wr 0, rd 0,
>>>>> flush 0, corrupt 10, gen 426
>>>>> [ 791.982552] BTRFS critical (device dm-5): corrupt leaf, bad key
>>>>> order: block=6210228551680,root=1, slot=49
>>>>> [ 791.982836] BTRFS critical (device dm-5): corrupt leaf, bad key
>>>>> order: block=6210228551680,root=1, slot=49
>>>>> [ 791.982862] BTRFS: Failed to read block groups: -5
>>>>> [ 792.030513] BTRFS: open_ctree failed
>>>>>
>>>>> [root@archiso ~]# btrfs restore -D /dev/mapper/rootvol_1
>>>>> /root/tmp_data | tee data_mnt/tom/restore_list.txt
>>>>> bad key ordering 49 50
>>>>> Error searching -1
>>>>> Error searching /root/tmp_data/home
>>>>> This is a dry-run, no files are going to be restored
>>>>> We have looped trying to restore files in
>>>>> /exherbo/root/squashfs-root/usr/bin too many times to be making
>>>>> progress, stopping
>>>>> We have looped trying to restore files in
>>>>> /exherbo/root/squashfs-root/usr/share/man/man1 too many times to be
>>>>> making progress, stopping
>>>>> We have looped trying to restore files in
>>>>> /exherbo/root/squashfs-root/usr/share/man/man3 too many times to be
>>>>> making progress, stopping
>>>>> We have looped trying to restore files in
>>>>> /exherbo/usr/x86_64-pc-linux-gnu/bin too many times to be making
>>>>> progress, stopping
>>>>> We have looped trying to restore files in
>>>>> /exherbo/usr/x86_64-pc-linux-gnu/include/firefox/mozilla/dom too many
>>>>> times to be making progress, stopping
>>>>> We have looped trying to restore files in
>>>>> /exherbo/usr/x86_64-pc-linux-gnu/include/firefox too many times to be
>>>>> making progress, stopping
>>>>> We have looped trying to restore files in
>>>>> /exherbo/usr/x86_64-pc-linux-gnu/lib/python3.5/test/__pycache__ too
>>>>> many times to be making progress, stopping
>>>>> We have looped trying to restore files in
>>>>> /exherbo/usr/x86_64-pc-linux-gnu/lib/python2.7/test too many times to
>>>>> be making progress, stopping
>>>>> We have looped trying to restore files in
>>>>> /exherbo/usr/x86_64-pc-linux-gnu/lib/debug/usr/x86_64-pc-linux-gnu/bin
>>>>> too many times to be making progress, stopping
>>>>> We have looped trying to restore files in /exherbo/usr/share/man/man3
>>>>> too many times to be making progress, stopping
>>>>> We have looped trying to restore files in /exherbo/usr/share/man/man1
>>>>> too many times to be making progress, stopping
>>>>> We have looped trying to restore files in
>>>>> /exherbo/usr/share/idl/firefox too many times to be making progress,
>>>>> stopping
>>>>>
>>>>> [root@archiso ~]# btrfs restore -v -l /dev/mapper/rootvol_1
>>>>> bad key ordering 49 50
>>>>> tree key (EXTENT_TREE ROOT_ITEM 0) 6210219163648 level 2
>>>>> tree key (DEV_TREE ROOT_ITEM 0) 3792640000000 level 1
>>>>> tree key (FS_TREE ROOT_ITEM 0) 3792595566592 level 0
>>>>> tree key (CSUM_TREE ROOT_ITEM 0) 6210220048384 level 3
>>>>> tree key (UUID_TREE ROOT_ITEM 0) 3792855105536 level 0
>>>>> tree key (257 ROOT_ITEM 0) 3792551755776 level 2
>>>>> tree key (258 ROOT_ITEM 0) 6210218557440 level 2
>>>>> tree key (3785 ROOT_ITEM 0) 7588191682560 level 0
>>>>> tree key (3786 ROOT_ITEM 0) 7588191633408 level 0
>>>>> tree key (7565 ROOT_ITEM 0) 6210221588480 level 2
>>>>> tree key (7566 ROOT_ITEM 0) 4055721377792 level 0
>>>>> tree key (7567 ROOT_ITEM 101377) 3792849616896 level 2
>>>>> tree key (DATA_RELOC_TREE ROOT_ITEM 0) 3792520544256 level 0
>>>>>
>>>>> Any help available? I tried using btrfs-restore previously on a
>>>>> different machine with only one of the disks plugged in, and it at
>>>>> least showed some files, though the 'Error searching -1' still showed
>>>>> up. (The /home subvolume is the only one I really care about;
>>>>> everything else is nice-to-have.)
>>>>>
>>>>> --
>>>>> Tom Hunt
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>>
>
>
--
Tom Dickson-Hunt
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Recovery of a raid1 FS
2016-01-08 2:02 ` Tom Hunt
@ 2016-01-08 2:26 ` Qu Wenruo
2016-01-08 3:46 ` Tom Hunt
0 siblings, 1 reply; 11+ messages in thread
From: Qu Wenruo @ 2016-01-08 2:26 UTC (permalink / raw)
To: Tom Hunt; +Cc: linux-btrfs
Tom Hunt wrote on 2016/01/07 19:02 -0700:
>> Does the sudden end means a segfault?
>
> The sudden end means an end. The program terminated without any
> further output or error indication.
>
>> And what's the output of btrfs-debug-tree /dev/mapper/rootvol_1 -b 6210223521792?
>
> [root@archiso ~]# btrfs-debug-tree /dev/mapper/rootvol_1 -b 6210223521792
> bad key ordering 49 50
> leaf 6210223521792 items 123 free space 55 generation 257371 owner 1
> fs uuid 91f7e058-1142-4036-b1f7-4f64163dc8ae
> chunk uuid 6abf465c-c677-4879-a4ca-d632e43e01e4
> item 0 key (7302 INODE_ITEM 0) itemoff 16123 itemsize 160
> inode generation 37573 transid 37573 size 262144 nbytes 1048576
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 1 key (7302 EXTENT_DATA 0) itemoff 16070 itemsize 53
> extent data disk byte 7564439363584 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 2 key (7303 INODE_ITEM 0) itemoff 15910 itemsize 160
> inode generation 37573 transid 37573 size 262144 nbytes 786432
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 3 key (7303 EXTENT_DATA 0) itemoff 15857 itemsize 53
> extent data disk byte 7564439662592 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 4 key (7304 INODE_ITEM 0) itemoff 15697 itemsize 160
> inode generation 36550 transid 36550 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 5 key (7304 EXTENT_DATA 0) itemoff 15644 itemsize 53
> extent data disk byte 7517322158080 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 6 key (7305 INODE_ITEM 0) itemoff 15484 itemsize 160
> inode generation 37573 transid 37573 size 262144 nbytes 524288
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 7 key (7305 EXTENT_DATA 0) itemoff 15431 itemsize 53
> extent data disk byte 7564439941120 nr 262144
> extent data offset 0 nr 262144 ram 262144
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> inode generation 37573 transid 37573 size 262144 nbytes 786432
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
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> extent data disk byte 7564440219648 nr 262144
> extent data offset 0 nr 262144 ram 262144
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> inode generation 37576 transid 37576 size 262144 nbytes 1310720
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 11 key (7307 EXTENT_DATA 0) itemoff 15005 itemsize 53
> extent data disk byte 7564425949184 nr 262144
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> inode generation 36586 transid 36586 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
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> inode generation 257365 transid 257365 size 262144
> nbytes 11781537792
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> inode generation 37590 transid 37590 size 262144 nbytes 786432
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> item 42 key (7323 INODE_ITEM 0) itemoff 11650 itemsize 160
> inode generation 36729 transid 36729 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 43 key (7323 EXTENT_DATA 0) itemoff 11597 itemsize 53
> extent data disk byte 4990756978688 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 44 key (7324 INODE_ITEM 0) itemoff 11437 itemsize 160
> inode generation 36739 transid 36739 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 45 key (7324 EXTENT_DATA 0) itemoff 11384 itemsize 53
> extent data disk byte 7520553996288 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 46 key (7325 INODE_ITEM 0) itemoff 11224 itemsize 160
> inode generation 36749 transid 36749 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 47 key (7325 EXTENT_DATA 0) itemoff 11171 itemsize 53
> extent data disk byte 7531508781056 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 48 key (7326 INODE_ITEM 0) itemoff 11011 itemsize 160
> inode generation 251050 transid 251050 size 262144
> nbytes 8435793920
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 49 key (7326 EXTENT_DATA 0) itemoff 10958 itemsize 53
> extent data disk byte 7747063099392 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 50 key (7327 INODE_ITEM 0) itemoff 10798 itemsize 160
> inode generation 36767 transid 36767 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 51 key (7327 EXTENT_DATA 0) itemoff 10745 itemsize 53
> extent data disk byte 7517323468800 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 52 key (7328 INODE_ITEM 0) itemoff 10585 itemsize 160
> inode generation 36777 transid 36777 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 53 key (7328 EXTENT_DATA 0) itemoff 10532 itemsize 53
> extent data disk byte 7529166970880 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 54 key (7329 INODE_ITEM 0) itemoff 10372 itemsize 160
> inode generation 40097 transid 40097 size 262144 nbytes 82313216
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 55 key (7329 EXTENT_DATA 0) itemoff 10319 itemsize 53
> extent data disk byte 7370190655488 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 56 key (3234 INODE_ITEM 0) itemoff 10159 itemsize 160
> inode generation 36795 transid 36795 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 57 key (7346 EXTENT_DATA 0) itemoff 10106 itemsize 53
> extent data disk byte 7521490550784 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
Item 56 and 57 are corrupted.
Their inode number should be 7330, but they are not.
If the output is valid, especially for the owner, then it means your
free space cache is damaged, but that's a very small problem though.
> item 58 key (7331 INODE_ITEM 0) itemoff 9946 itemsize 160
> inode generation 36804 transid 36804 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 59 key (7331 EXTENT_DATA 0) itemoff 9893 itemsize 53
> extent data disk byte 7526874955776 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 60 key (7332 INODE_ITEM 0) itemoff 9733 itemsize 160
> inode generation 257363 transid 257363 size 262144
> nbytes 13501202432
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 61 key (7332 EXTENT_DATA 0) itemoff 9680 itemsize 53
> extent data disk byte 7747053572096 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 62 key (7333 INODE_ITEM 0) itemoff 9520 itemsize 160
> inode generation 257371 transid 257371 size 262144
> nbytes 16589520896
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 63 key (7333 EXTENT_DATA 0) itemoff 9467 itemsize 53
> extent data disk byte 7775023665152 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 64 key (7334 INODE_ITEM 0) itemoff 9307 itemsize 160
> inode generation 239755 transid 239755 size 262144
> nbytes 13442482176
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 65 key (7334 EXTENT_DATA 0) itemoff 9254 itemsize 53
> extent data disk byte 7896225873920 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 66 key (7335 INODE_ITEM 0) itemoff 9094 itemsize 160
> inode generation 239755 transid 239755 size 262144
> nbytes 1324613632
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 67 key (7335 EXTENT_DATA 0) itemoff 9041 itemsize 53
> extent data disk byte 7896226185216 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 68 key (7336 INODE_ITEM 0) itemoff 8881 itemsize 160
> inode generation 240953 transid 240953 size 262144
> nbytes 3632529408
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 69 key (7336 EXTENT_DATA 0) itemoff 8828 itemsize 53
> extent data disk byte 5919597350912 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 70 key (7337 INODE_ITEM 0) itemoff 8668 itemsize 160
> inode generation 243010 transid 243010 size 262144
> nbytes 2379481088
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 71 key (7337 EXTENT_DATA 0) itemoff 8615 itemsize 53
> extent data disk byte 5918852136960 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 72 key (7338 INODE_ITEM 0) itemoff 8455 itemsize 160
> inode generation 79477 transid 79477 size 262144 nbytes 24117248
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 73 key (7338 EXTENT_DATA 0) itemoff 8402 itemsize 53
> extent data disk byte 7715922624512 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 74 key (7339 INODE_ITEM 0) itemoff 8242 itemsize 160
> inode generation 81958 transid 81958 size 262144 nbytes 78381056
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 75 key (7339 EXTENT_DATA 0) itemoff 8189 itemsize 53
> extent data disk byte 7721189564416 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 76 key (7340 INODE_ITEM 0) itemoff 8029 itemsize 160
> inode generation 83591 transid 83591 size 262144
> nbytes 165150720
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 77 key (7340 EXTENT_DATA 0) itemoff 7976 itemsize 53
> extent data disk byte 7744960389120 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 78 key (7341 INODE_ITEM 0) itemoff 7816 itemsize 160
> inode generation 47076 transid 47076 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 79 key (7341 EXTENT_DATA 0) itemoff 7763 itemsize 53
> extent data disk byte 7518415810560 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 80 key (7342 INODE_ITEM 0) itemoff 7603 itemsize 160
> inode generation 47085 transid 47085 size 262144 nbytes 1048576
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 81 key (7342 EXTENT_DATA 0) itemoff 7550 itemsize 53
> extent data disk byte 7532088664064 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 82 key (7343 INODE_ITEM 0) itemoff 7390 itemsize 160
> inode generation 47077 transid 47077 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 83 key (7343 EXTENT_DATA 0) itemoff 7337 itemsize 53
> extent data disk byte 7517316259840 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 84 key (7344 INODE_ITEM 0) itemoff 7177 itemsize 160
> inode generation 47196 transid 47196 size 262144 nbytes 22282240
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 85 key (7344 EXTENT_DATA 0) itemoff 7124 itemsize 53
> extent data disk byte 6878509641728 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 86 key (7345 INODE_ITEM 0) itemoff 6964 itemsize 160
> inode generation 47078 transid 47078 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 87 key (7345 EXTENT_DATA 0) itemoff 6911 itemsize 53
> extent data disk byte 7517369085952 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 88 key (7346 INODE_ITEM 0) itemoff 6751 itemsize 160
> inode generation 47235 transid 47235 size 262144 nbytes 23592960
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 89 key (7346 EXTENT_DATA 0) itemoff 6698 itemsize 53
> extent data disk byte 6878511214592 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 90 key (7347 INODE_ITEM 0) itemoff 6538 itemsize 160
> inode generation 47078 transid 47078 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 91 key (7347 EXTENT_DATA 0) itemoff 6485 itemsize 53
> extent data disk byte 7520553472000 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 92 key (7348 INODE_ITEM 0) itemoff 6325 itemsize 160
> inode generation 47228 transid 47228 size 262144 nbytes 22020096
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 93 key (7348 EXTENT_DATA 0) itemoff 6272 itemsize 53
> extent data disk byte 6878522159104 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 94 key (7349 INODE_ITEM 0) itemoff 6112 itemsize 160
> inode generation 47078 transid 47078 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 95 key (7349 EXTENT_DATA 0) itemoff 6059 itemsize 53
> extent data disk byte 7531921424384 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 96 key (7350 INODE_ITEM 0) itemoff 5899 itemsize 160
> inode generation 47181 transid 47181 size 262144 nbytes 13631488
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 97 key (7350 EXTENT_DATA 0) itemoff 5846 itemsize 53
> extent data disk byte 6878515281920 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 98 key (7351 INODE_ITEM 0) itemoff 5686 itemsize 160
> inode generation 47078 transid 47078 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 99 key (7351 EXTENT_DATA 0) itemoff 5633 itemsize 53
> extent data disk byte 7538744426496 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 100 key (7352 INODE_ITEM 0) itemoff 5473 itemsize 160
> inode generation 47183 transid 47183 size 262144 nbytes 11796480
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 101 key (7352 EXTENT_DATA 0) itemoff 5420 itemsize 53
> extent data disk byte 6878518218752 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 102 key (7353 INODE_ITEM 0) itemoff 5260 itemsize 160
> inode generation 47078 transid 47078 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 103 key (7353 EXTENT_DATA 0) itemoff 5207 itemsize 53
> extent data disk byte 7540909154304 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 104 key (7354 INODE_ITEM 0) itemoff 5047 itemsize 160
> inode generation 47196 transid 47196 size 262144 nbytes 15466496
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 105 key (7354 EXTENT_DATA 0) itemoff 4994 itemsize 53
> extent data disk byte 6878513303552 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 106 key (7355 INODE_ITEM 0) itemoff 4834 itemsize 160
> inode generation 47078 transid 47078 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 107 key (7355 EXTENT_DATA 0) itemoff 4781 itemsize 53
> extent data disk byte 7564487045120 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 108 key (7356 INODE_ITEM 0) itemoff 4621 itemsize 160
> inode generation 47210 transid 47210 size 262144 nbytes 19660800
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 109 key (7356 EXTENT_DATA 0) itemoff 4568 itemsize 53
> extent data disk byte 6878541139968 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 110 key (7357 INODE_ITEM 0) itemoff 4408 itemsize 160
> inode generation 47079 transid 47079 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 111 key (7357 EXTENT_DATA 0) itemoff 4355 itemsize 53
> extent data disk byte 7538756612096 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 112 key (7358 INODE_ITEM 0) itemoff 4195 itemsize 160
> inode generation 47079 transid 47079 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 113 key (7358 EXTENT_DATA 0) itemoff 4142 itemsize 53
> extent data disk byte 7582721437696 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 114 key (7359 INODE_ITEM 0) itemoff 3982 itemsize 160
> inode generation 82232 transid 82232 size 262144 nbytes 44564480
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 115 key (7359 EXTENT_DATA 0) itemoff 3929 itemsize 53
> extent data disk byte 7724558057472 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 116 key (7360 INODE_ITEM 0) itemoff 3769 itemsize 160
> inode generation 47080 transid 47080 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 117 key (7360 EXTENT_DATA 0) itemoff 3716 itemsize 53
> extent data disk byte 4658994225152 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 118 key (7361 INODE_ITEM 0) itemoff 3556 itemsize 160
> inode generation 47080 transid 47080 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 119 key (7361 EXTENT_DATA 0) itemoff 3503 itemsize 53
> extent data disk byte 6905566703616 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 120 key (7362 INODE_ITEM 0) itemoff 3343 itemsize 160
> inode generation 79539 transid 79539 size 262144 nbytes 38535168
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
> item 121 key (7362 EXTENT_DATA 0) itemoff 3290 itemsize 53
> extent data disk byte 7720056217600 nr 262144
> extent data offset 0 nr 262144 ram 262144
> extent compression 0
> item 122 key (7363 INODE_ITEM 0) itemoff 3130 itemsize 160
> inode generation 47080 transid 47080 size 262144 nbytes 262144
> block group 0 mode 100600 links 1 uid 0 gid 0
> rdev 0 flags 0x1b
>
>> If btrfs-debug-tree can still output things like below, and the leaf's owner is still 2, I'd recommend to run btrfsck --init-extent-tree, which should has a good chance to fix it.
>
>> Although even in that case, I'm not 100% sure if it will work, or do more damage...
>
> Would it be a sensible precaution to unplug one disk and attempt
> recovery on a single one? If I understand correctly, all the data
> should be available on either. This disk is quite significant to me,
> and the other option is restoring from a week-old backup; annoying, if
> not fatal.
You can try this method.
But after that, *NEVER* put all the two devices online *TOGETHER*.
Thanks,
Qu
>
> For the record, I've also already bought new disks and will be
> operating with those going forward, so a transfer of data will be
> necessary in any case. (There was the possibility of hardware damage
> from a flood a little while ago, and even if this is unrelated, I'm
> paranoid about this volume.)
>
> On Thu, Jan 7, 2016 at 6:48 PM, Qu Wenruo <quwenruo@cn.fujitsu.com> wrote:
>>
>>
>> Tom Hunt wrote on 2016/01/07 18:43 -0700:
>>>
>>> I had done this already, but somehow forgot to include it. (Internet
>>> suggests 'btrfs check' is synonym for 'btrfsck'; if this is not the
>>> case, please advise.)
>>>
>>> [root@archiso ~]# btrfs check /dev/mapper/rootvol_1
>>> bad key ordering 49 50
>>> Checking filesystem on /dev/mapper/rootvol_1
>>> UUID: 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>> checking extents
>>> bad key ordering 55 56
>>> bad block 6210223521792
>>> Errors found in extent allocation tree or chunk allocation
>>> bad key ordering 55 56
>>
>>
>> Does the sudden end means a segfault?
>>
>>>
>>> And the other:
>>>
>>> [root@archiso ~]# btrfs-debug-tree /dev/mapper/rootvol_1 -b 6210228551680
>>> bad key ordering 49 50
>>> leaf 6210228551680 items 195 free space 244 generation 257371 owner 2
>>
>>
>> That's extent tree, not a big problem as the whole extent tree can be easily
>> rebuilt.
>>
>> And what's the output of btrfs-debug-tree /dev/mapper/rootvol_1 -b
>> 6210223521792?
>>
>> If btrfs-debug-tree can still output things like below, and the leaf's owner
>> is still 2, I'd recommend to run btrfsck --init-extent-tree, which should
>> has a good chance to fix it.
>>
>> Although even in that case, I'm not 100% sure if it will work, or do more
>> damage...
>>
>> Thanks,
>> Qu
>>
>>
>>> fs uuid 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>> chunk uuid 6abf465c-c677-4879-a4ca-d632e43e01e4
>>> item 0 key (7777093095424 EXTENT_ITEM 4096) itemoff 16217
>>> itemsize 66
>>> extent refs 2 gen 96498 flags DATA
>>> extent data backref root 258 objectid 1319842 offset
>>> 16289792 count 1
>>> shared data backref parent 7588669325312 count 1
>>> item 1 key (7777093099520 EXTENT_ITEM 4096) itemoff 16151
>>> itemsize 66
>>> extent refs 2 gen 96498 flags DATA
>>> extent data backref root 258 objectid 1319842 offset
>>> 20484096 count 1
>>> shared data backref parent 7588669325312 count 1
>>> item 2 key (7777093103616 EXTENT_ITEM 4096) itemoff 16085
>>> itemsize 66
>>> extent refs 2 gen 96498 flags DATA
>>> extent data backref root 258 objectid 1319842 offset
>>> 22581248 count 1
>>> shared data backref parent 7588669325312 count 1
>>> item 3 key (7777093107712 EXTENT_ITEM 4096) itemoff 16019
>>> itemsize 66
>>> extent refs 2 gen 96501 flags DATA
>>> extent data backref root 258 objectid 1319842 offset
>>> 56135680 count 1
>>> shared data backref parent 7343916351488 count 1
>>> item 4 key (7777093111808 EXTENT_ITEM 4096) itemoff 15953
>>> itemsize 66
>>> extent refs 2 gen 96501 flags DATA
>>> extent data backref root 258 objectid 1319842 offset
>>> 58232832 count 1
>>> shared data backref parent 7343916351488 count 1
>>> item 5 key (7777093115904 EXTENT_ITEM 4096) itemoff 15887
>>> itemsize 66
>>> extent refs 2 gen 96511 flags DATA
>>> extent data backref root 258 objectid 1319842 offset
>>> 35164160 count 1
>>> shared data backref parent 7588669325312 count 1
>>> item 6 key (7777093120000 EXTENT_ITEM 4096) itemoff 15821
>>> itemsize 66
>>> extent refs 2 gen 96511 flags DATA
>>> extent data backref root 258 objectid 1319842 offset
>>> 37261312 count 1
>>> shared data backref parent 7588669325312 count 1
>>> item 7 key (7777093124096 EXTENT_ITEM 4096) itemoff 15755
>>> itemsize 66
>>> extent refs 2 gen 96521 flags DATA
>>> extent data backref root 258 objectid 1319842 offset
>>> 45649920 count 1
>>> shared data backref parent 7343916351488 count 1
>>> item 8 key (7777093128192 EXTENT_ITEM 4096) itemoff 15689
>>> itemsize 66
>>> extent refs 2 gen 96521 flags DATA
>>> extent data backref root 258 objectid 1319842 offset
>>> 47747072 count 1
>>> shared data backref parent 7343916351488 count 1
>>> item 9 key (7777093132288 EXTENT_ITEM 4096) itemoff 15636
>>> itemsize 53
>>> extent refs 1 gen 128816 flags DATA
>>> extent data backref root 258 objectid 1747043 offset
>>> 208896 count 1
>>> item 10 key (7777093136384 EXTENT_ITEM 4096) itemoff 15583
>>> itemsize 53
>>> extent refs 1 gen 128816 flags DATA
>>> extent data backref root 258 objectid 1747043 offset
>>> 1191936 count 1
>>> item 11 key (7777093140480 EXTENT_ITEM 4096) itemoff 15530
>>> itemsize 53
>>> extent refs 1 gen 128816 flags DATA
>>> extent data backref root 258 objectid 1747043 offset
>>> 1896448 count 1
>>> item 12 key (7777093144576 EXTENT_ITEM 4096) itemoff 15477
>>> itemsize 53
>>> extent refs 1 gen 128824 flags DATA
>>> extent data backref root 258 objectid 1746670 offset
>>> 3141632 count 1
>>> item 13 key (7777093148672 EXTENT_ITEM 4096) itemoff 15424
>>> itemsize 53
>>> extent refs 1 gen 128824 flags DATA
>>> extent data backref root 258 objectid 1746670 offset
>>> 7335936 count 1
>>> item 14 key (7777093152768 EXTENT_ITEM 4096) itemoff 15371
>>> itemsize 53
>>> extent refs 1 gen 128827 flags DATA
>>> extent data backref root 258 objectid 1746598 offset
>>> 2142208 count 1
>>> item 15 key (7777093156864 EXTENT_ITEM 4096) itemoff 15318
>>> itemsize 53
>>> extent refs 1 gen 128827 flags DATA
>>> extent data backref root 258 objectid 1746598 offset
>>> 6336512 count 1
>>> item 16 key (7777093160960 EXTENT_ITEM 1167360) itemoff 15265
>>> itemsize 53
>>> extent refs 1 gen 148358 flags DATA
>>> extent data backref root 258 objectid 800697 offset
>>> 219987968 count 1
>>> item 17 key (7777094328320 EXTENT_ITEM 4096) itemoff 15212
>>> itemsize 53
>>> extent refs 1 gen 152899 flags DATA
>>> extent data backref root 258 objectid 2111468 offset
>>> 909312 count 1
>>> item 18 key (7777094332416 EXTENT_ITEM 20480) itemoff 15159
>>> itemsize 53
>>> extent refs 1 gen 185891 flags DATA
>>> extent data backref root 7565 objectid 135103 offset 0
>>> count 1
>>> item 19 key (7777094356992 EXTENT_ITEM 18608128) itemoff 15106
>>> itemsize 53
>>> extent refs 1 gen 93646 flags DATA
>>> extent data backref root 257 objectid 1798430 offset 0
>>> count 1
>>> item 20 key (7777112965120 EXTENT_ITEM 2465792) itemoff 15053
>>> itemsize 53
>>> extent refs 1 gen 93647 flags DATA
>>> extent data backref root 257 objectid 1798304 offset 0
>>> count 1
>>> item 21 key (7777115430912 EXTENT_ITEM 2441216) itemoff 15000
>>> itemsize 53
>>> extent refs 1 gen 93647 flags DATA
>>> extent data backref root 257 objectid 1798413 offset 0
>>> count 1
>>> item 22 key (7777117872128 EXTENT_ITEM 2617344) itemoff 14947
>>> itemsize 53
>>> extent refs 1 gen 93647 flags DATA
>>> extent data backref root 257 objectid 1798416 offset 0
>>> count 1
>>> item 23 key (7777120489472 EXTENT_ITEM 2592768) itemoff 14894
>>> itemsize 53
>>> extent refs 1 gen 93647 flags DATA
>>> extent data backref root 257 objectid 1798419 offset 0
>>> count 1
>>> item 24 key (7777123082240 EXTENT_ITEM 2355200) itemoff 14841
>>> itemsize 53
>>> extent refs 1 gen 93647 flags DATA
>>> extent data backref root 257 objectid 1798422 offset 0
>>> count 1
>>> item 25 key (7777125437440 EXTENT_ITEM 2469888) itemoff 14788
>>> itemsize 53
>>> extent refs 1 gen 93647 flags DATA
>>> extent data backref root 257 objectid 1798425 offset 0
>>> count 1
>>> item 26 key (7777127907328 EXTENT_ITEM 2646016) itemoff 14735
>>> itemsize 53
>>> extent refs 1 gen 93647 flags DATA
>>> extent data backref root 257 objectid 1798428 offset 0
>>> count 1
>>> item 27 key (7777130553344 EXTENT_ITEM 2461696) itemoff 14682
>>> itemsize 53
>>> extent refs 1 gen 93647 flags DATA
>>> extent data backref root 257 objectid 1798446 offset 0
>>> count 1
>>> item 28 key (7777133015040 EXTENT_ITEM 2637824) itemoff 14629
>>> itemsize 53
>>> extent refs 1 gen 93647 flags DATA
>>> extent data backref root 257 objectid 1798449 offset 0
>>> count 1
>>> item 29 key (7777135652864 EXTENT_ITEM 2609152) itemoff 14576
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>>> extent refs 2 gen 86593 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 114688 count 1
>>> shared data backref parent 3804574728192 count 1
>>> item 145 key (7778134339584 EXTENT_ITEM 4096) itemoff 8028
>>> itemsize 53
>>> extent refs 1 gen 86593 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 306626560 count 1
>>> item 146 key (7778134343680 EXTENT_ITEM 4096) itemoff 7975
>>> itemsize 53
>>> extent refs 1 gen 86593 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 307036160 count 1
>>> item 147 key (7778134347776 EXTENT_ITEM 4096) itemoff 7922
>>> itemsize 53
>>> extent refs 1 gen 86593 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 307855360 count 1
>>> item 148 key (7778134351872 EXTENT_ITEM 4096) itemoff 7869
>>> itemsize 53
>>> extent refs 1 gen 86593 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 307888128 count 1
>>> item 149 key (7778134355968 EXTENT_ITEM 4096) itemoff 7816
>>> itemsize 53
>>> extent refs 1 gen 86593 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 309968896 count 1
>>> item 150 key (7778134360064 EXTENT_ITEM 4096) itemoff 7763
>>> itemsize 53
>>> extent refs 1 gen 86593 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 310116352 count 1
>>> item 151 key (7778134364160 EXTENT_ITEM 4096) itemoff 7697
>>> itemsize 66
>>> extent refs 2 gen 86595 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 478265344 count 1
>>> shared data backref parent 5253034229760 count 1
>>> item 152 key (7778134368256 EXTENT_ITEM 4096) itemoff 7631
>>> itemsize 66
>>> extent refs 2 gen 86596 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 720896 count 1
>>> shared data backref parent 3804574728192 count 1
>>> item 153 key (7778134372352 EXTENT_ITEM 4096) itemoff 7565
>>> itemsize 66
>>> extent refs 2 gen 86596 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 1458176 count 1
>>> shared data backref parent 3804574728192 count 1
>>> item 154 key (7778134376448 EXTENT_ITEM 4096) itemoff 7512
>>> itemsize 53
>>> extent refs 1 gen 86596 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 272744448 count 1
>>> item 155 key (7778134380544 EXTENT_ITEM 4096) itemoff 7459
>>> itemsize 53
>>> extent refs 1 gen 86597 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 319438848 count 1
>>> item 156 key (7778134384640 EXTENT_ITEM 4096) itemoff 7406
>>> itemsize 53
>>> extent refs 1 gen 86597 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 319586304 count 1
>>> item 157 key (7778134388736 EXTENT_ITEM 17592186048512)
>>> itemoff 7353 itemsize 53
>>> extent refs 1 gen 86597 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 321355776 count 1
>>> item 158 key (7778134392832 EXTENT_ITEM 4096) itemoff 7300
>>> itemsize 53
>>> extent refs 1 gen 86597 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 321454080 count 1
>>> item 159 key (7778134396928 EXTENT_ITEM 4096) itemoff 7234
>>> itemsize 66
>>> extent refs 2 gen 86598 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 344047616 count 1
>>> shared data backref parent 5253034229760 count 1
>>> item 160 key (7778134401024 EXTENT_ITEM 4096) itemoff 7168
>>> itemsize 66
>>> extent refs 2 gen 86600 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 423739392 count 1
>>> shared data backref parent 5253034229760 count 1
>>> item 161 key (7778134405120 EXTENT_ITEM 4096) itemoff 7102
>>> itemsize 66
>>> extent refs 2 gen 86601 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 100777984 count 1
>>> shared data backref parent 3804574728192 count 1
>>> item 162 key (7778134409216 EXTENT_ITEM 4096) itemoff 7049
>>> itemsize 53
>>> extent refs 1 gen 86601 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 193052672 count 1
>>> item 163 key (7778134413312 EXTENT_ITEM 4096) itemoff 6996
>>> itemsize 53
>>> extent refs 1 gen 86601 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 197246976 count 1
>>> item 164 key (7778134417408 EXTENT_ITEM 4096) itemoff 6943
>>> itemsize 53
>>> extent refs 1 gen 86601 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 230801408 count 1
>>> item 165 key (7778134421504 EXTENT_ITEM 4096) itemoff 6890
>>> itemsize 53
>>> extent refs 1 gen 86601 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 234995712 count 1
>>> item 166 key (7778134425600 EXTENT_ITEM 4096) itemoff 6837
>>> itemsize 53
>>> extent refs 1 gen 86601 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 268550144 count 1
>>> item 167 key (7778134429696 EXTENT_ITEM 4096) itemoff 6771
>>> itemsize 66
>>> extent refs 2 gen 86602 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 25280512 count 1
>>> shared data backref parent 3804574728192 count 1
>>> item 168 key (7778134433792 EXTENT_ITEM 4096) itemoff 6705
>>> itemsize 66
>>> extent refs 2 gen 86602 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 29474816 count 1
>>> shared data backref parent 3804574728192 count 1
>>> item 169 key (7778134437888 EXTENT_ITEM 4096) itemoff 6652
>>> itemsize 53
>>> extent refs 1 gen 86602 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 231292928 count 1
>>> item 170 key (7778134441984 EXTENT_ITEM 4096) itemoff 6599
>>> itemsize 53
>>> extent refs 1 gen 86602 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 231325696 count 1
>>> item 171 key (7778134446080 EXTENT_ITEM 4096) itemoff 6546
>>> itemsize 53
>>> extent refs 1 gen 86602 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 232144896 count 1
>>> item 172 key (7778134450176 EXTENT_ITEM 4096) itemoff 6493
>>> itemsize 53
>>> extent refs 1 gen 86602 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 232636416 count 1
>>> item 173 key (7778134454272 EXTENT_ITEM 4096) itemoff 6427
>>> itemsize 66
>>> extent refs 2 gen 86603 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 46252032 count 1
>>> shared data backref parent 3804574728192 count 1
>>> item 174 key (7778134458368 EXTENT_ITEM 4096) itemoff 6361
>>> itemsize 66
>>> extent refs 2 gen 86605 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 394379264 count 1
>>> shared data backref parent 5253034229760 count 1
>>> item 175 key (7778134462464 EXTENT_ITEM 4096) itemoff 6295
>>> itemsize 66
>>> extent refs 2 gen 86607 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 75612160 count 1
>>> shared data backref parent 3804574728192 count 1
>>> item 176 key (7778134466560 EXTENT_ITEM 4096) itemoff 6229
>>> itemsize 66
>>> extent refs 2 gen 86607 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 79806464 count 1
>>> shared data backref parent 3804574728192 count 1
>>> item 177 key (7778134470656 EXTENT_ITEM 4096) itemoff 6176
>>> itemsize 53
>>> extent refs 1 gen 86607 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 159498240 count 1
>>> item 178 key (7778134474752 EXTENT_ITEM 4096) itemoff 6123
>>> itemsize 53
>>> extent refs 1 gen 86607 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 163692544 count 1
>>> item 179 key (7778134478848 EXTENT_ITEM 4096) itemoff 6057
>>> itemsize 66
>>> extent refs 2 gen 86608 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 93421568 count 1
>>> shared data backref parent 3804574728192 count 1
>>> item 180 key (7778134482944 EXTENT_ITEM 4096) itemoff 5991
>>> itemsize 66
>>> extent refs 2 gen 86608 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 94437376 count 1
>>> shared data backref parent 3804574728192 count 1
>>> item 181 key (7778134487040 EXTENT_ITEM 4096) itemoff 5925
>>> itemsize 66
>>> extent refs 2 gen 86608 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 96141312 count 1
>>> shared data backref parent 3804574728192 count 1
>>> item 182 key (7778134491136 EXTENT_ITEM 4096) itemoff 5859
>>> itemsize 66
>>> extent refs 2 gen 86608 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 96583680 count 1
>>> shared data backref parent 3804574728192 count 1
>>> item 183 key (7778134495232 EXTENT_ITEM 4096) itemoff 5806
>>> itemsize 53
>>> extent refs 1 gen 86608 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 260161536 count 1
>>> item 184 key (7778134499328 EXTENT_ITEM 4096) itemoff 5753
>>> itemsize 53
>>> extent refs 1 gen 86608 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 264355840 count 1
>>> item 185 key (7778134503424 EXTENT_ITEM 4096) itemoff 5687
>>> itemsize 66
>>> extent refs 2 gen 86610 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 474071040 count 1
>>> shared data backref parent 5253034229760 count 1
>>> item 186 key (7778134507520 EXTENT_ITEM 4096) itemoff 5621
>>> itemsize 66
>>> extent refs 2 gen 86611 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 67223552 count 1
>>> shared data backref parent 3804574728192 count 1
>>> item 187 key (7778134511616 EXTENT_ITEM 4096) itemoff 5555
>>> itemsize 66
>>> extent refs 2 gen 86611 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 71417856 count 1
>>> shared data backref parent 3804574728192 count 1
>>> item 188 key (7778134515712 EXTENT_ITEM 4096) itemoff 5489
>>> itemsize 66
>>> extent refs 2 gen 86611 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 470777856 count 1
>>> shared data backref parent 5253034229760 count 1
>>> item 189 key (7778134519808 EXTENT_ITEM 4096) itemoff 5423
>>> itemsize 66
>>> extent refs 2 gen 86611 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 472039424 count 1
>>> shared data backref parent 5253034229760 count 1
>>> item 190 key (7778134523904 EXTENT_ITEM 4096) itemoff 5357
>>> itemsize 66
>>> extent refs 2 gen 86612 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 369213440 count 1
>>> shared data backref parent 5253034229760 count 1
>>> item 191 key (7778134528000 EXTENT_ITEM 4096) itemoff 5291
>>> itemsize 66
>>> extent refs 2 gen 86613 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 372703232 count 1
>>> shared data backref parent 5253034229760 count 1
>>> item 192 key (7778134532096 EXTENT_ITEM 4096) itemoff 5225
>>> itemsize 66
>>> extent refs 2 gen 86613 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 372768768 count 1
>>> shared data backref parent 5253034229760 count 1
>>> item 193 key (7778134536192 EXTENT_ITEM 4096) itemoff 5172
>>> itemsize 53
>>> extent refs 1 gen 86614 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 222412800 count 1
>>> item 194 key (7778134540288 EXTENT_ITEM 4096) itemoff 5119
>>> itemsize 53
>>> extent refs 1 gen 86614 flags DATA
>>> extent data backref root 258 objectid 1257819 offset
>>> 226607104 count 1
>>>
>>> On Wed, Jan 6, 2016 at 11:02 PM, Qu Wenruo <quwenruo@cn.fujitsu.com>
>>> wrote:
>>>>
>>>> Did you tried btrfsck without --repair?
>>>>
>>>> And would you please paste the output of the following command?
>>>>
>>>> # btrfs-debug-tree <YOUR_DEVICE> -b 6210228551680
>>>>
>>>> Thanks,
>>>> Qu
>>>>
>>>>
>>>> Tom Hunt wrote on 2016/01/06 22:16 -0700:
>>>>>
>>>>>
>>>>> Some things I missed:
>>>>>
>>>>> [root@archiso ~]# uname -a
>>>>> Linux archiso 4.2.5-1-ARCH #1 SMP PREEMPT Tue Oct 27 08:13:28 CET 2015
>>>>> x86_64 GNU/Linux
>>>>> [root@archiso ~]# btrfs --version
>>>>> btrfs-progs v4.3.1
>>>>> [root@archiso ~]# btrfs fi show
>>>>> Label: none uuid: 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>>>> Total devices 2 FS bytes used 3.84TiB
>>>>> devid 1 size 5.45TiB used 3.86TiB path
>>>>> /dev/mapper/rootvol_1
>>>>> devid 2 size 5.45TiB used 3.86TiB path
>>>>> /dev/mapper/rootvol_2
>>>>>
>>>>>
>>>>> This is a liveUSB, but the machine that was running was also an
>>>>> up-to-date
>>>>> Arch.
>>>>>
>>>>> On Wed, Jan 6, 2016 at 9:02 PM, Tom Hunt <tomdicksonhunt@gmail.com>
>>>>> wrote:
>>>>>>
>>>>>>
>>>>>> I've got a two-disk RAID1 btrfs volume, which crashed for no apparent
>>>>>> reason and was corrupt on next boot. Relevant command runs and
>>>>>> outputs:
>>>>>>
>>>>>> [root@archiso ~]# mount -osubvol=.,ro,recovery /dev/mapper/rootvol_1
>>>>>> mnt
>>>>>> mount: wrong fs type, bad option, bad superblock on
>>>>>> /dev/mapper/rootvol_1,
>>>>>> missing codepage or helper program, or other error
>>>>>>
>>>>>> In some cases useful info is found in syslog - try
>>>>>> dmesg | tail or so.
>>>>>> [ 372.665800] Btrfs loaded
>>>>>> [ 372.666481] BTRFS: device fsid 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>>>>> devid 1 transid 257371 /dev/dm-4
>>>>>> [ 389.339860] BTRFS: device fsid 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>>>>> devid 2 transid 257371 /dev/dm-5
>>>>>> [ 781.695931] BTRFS info (device dm-5): enabling auto recovery
>>>>>> [ 781.695933] BTRFS info (device dm-5): disk space caching is enabled
>>>>>> [ 781.695934] BTRFS: has skinny extents
>>>>>> [ 781.776198] BTRFS: bdev /dev/mapper/rootvol_2 errs: wr 0, rd 0,
>>>>>> flush 0, corrupt 10, gen 426
>>>>>> [ 791.982552] BTRFS critical (device dm-5): corrupt leaf, bad key
>>>>>> order: block=6210228551680,root=1, slot=49
>>>>>> [ 791.982836] BTRFS critical (device dm-5): corrupt leaf, bad key
>>>>>> order: block=6210228551680,root=1, slot=49
>>>>>> [ 791.982862] BTRFS: Failed to read block groups: -5
>>>>>> [ 792.030513] BTRFS: open_ctree failed
>>>>>>
>>>>>> [root@archiso ~]# btrfs restore -D /dev/mapper/rootvol_1
>>>>>> /root/tmp_data | tee data_mnt/tom/restore_list.txt
>>>>>> bad key ordering 49 50
>>>>>> Error searching -1
>>>>>> Error searching /root/tmp_data/home
>>>>>> This is a dry-run, no files are going to be restored
>>>>>> We have looped trying to restore files in
>>>>>> /exherbo/root/squashfs-root/usr/bin too many times to be making
>>>>>> progress, stopping
>>>>>> We have looped trying to restore files in
>>>>>> /exherbo/root/squashfs-root/usr/share/man/man1 too many times to be
>>>>>> making progress, stopping
>>>>>> We have looped trying to restore files in
>>>>>> /exherbo/root/squashfs-root/usr/share/man/man3 too many times to be
>>>>>> making progress, stopping
>>>>>> We have looped trying to restore files in
>>>>>> /exherbo/usr/x86_64-pc-linux-gnu/bin too many times to be making
>>>>>> progress, stopping
>>>>>> We have looped trying to restore files in
>>>>>> /exherbo/usr/x86_64-pc-linux-gnu/include/firefox/mozilla/dom too many
>>>>>> times to be making progress, stopping
>>>>>> We have looped trying to restore files in
>>>>>> /exherbo/usr/x86_64-pc-linux-gnu/include/firefox too many times to be
>>>>>> making progress, stopping
>>>>>> We have looped trying to restore files in
>>>>>> /exherbo/usr/x86_64-pc-linux-gnu/lib/python3.5/test/__pycache__ too
>>>>>> many times to be making progress, stopping
>>>>>> We have looped trying to restore files in
>>>>>> /exherbo/usr/x86_64-pc-linux-gnu/lib/python2.7/test too many times to
>>>>>> be making progress, stopping
>>>>>> We have looped trying to restore files in
>>>>>> /exherbo/usr/x86_64-pc-linux-gnu/lib/debug/usr/x86_64-pc-linux-gnu/bin
>>>>>> too many times to be making progress, stopping
>>>>>> We have looped trying to restore files in /exherbo/usr/share/man/man3
>>>>>> too many times to be making progress, stopping
>>>>>> We have looped trying to restore files in /exherbo/usr/share/man/man1
>>>>>> too many times to be making progress, stopping
>>>>>> We have looped trying to restore files in
>>>>>> /exherbo/usr/share/idl/firefox too many times to be making progress,
>>>>>> stopping
>>>>>>
>>>>>> [root@archiso ~]# btrfs restore -v -l /dev/mapper/rootvol_1
>>>>>> bad key ordering 49 50
>>>>>> tree key (EXTENT_TREE ROOT_ITEM 0) 6210219163648 level 2
>>>>>> tree key (DEV_TREE ROOT_ITEM 0) 3792640000000 level 1
>>>>>> tree key (FS_TREE ROOT_ITEM 0) 3792595566592 level 0
>>>>>> tree key (CSUM_TREE ROOT_ITEM 0) 6210220048384 level 3
>>>>>> tree key (UUID_TREE ROOT_ITEM 0) 3792855105536 level 0
>>>>>> tree key (257 ROOT_ITEM 0) 3792551755776 level 2
>>>>>> tree key (258 ROOT_ITEM 0) 6210218557440 level 2
>>>>>> tree key (3785 ROOT_ITEM 0) 7588191682560 level 0
>>>>>> tree key (3786 ROOT_ITEM 0) 7588191633408 level 0
>>>>>> tree key (7565 ROOT_ITEM 0) 6210221588480 level 2
>>>>>> tree key (7566 ROOT_ITEM 0) 4055721377792 level 0
>>>>>> tree key (7567 ROOT_ITEM 101377) 3792849616896 level 2
>>>>>> tree key (DATA_RELOC_TREE ROOT_ITEM 0) 3792520544256 level 0
>>>>>>
>>>>>> Any help available? I tried using btrfs-restore previously on a
>>>>>> different machine with only one of the disks plugged in, and it at
>>>>>> least showed some files, though the 'Error searching -1' still showed
>>>>>> up. (The /home subvolume is the only one I really care about;
>>>>>> everything else is nice-to-have.)
>>>>>>
>>>>>> --
>>>>>> Tom Hunt
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>
>>>
>>>
>>
>>
>
>
>
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Recovery of a raid1 FS
2016-01-08 2:26 ` Qu Wenruo
@ 2016-01-08 3:46 ` Tom Hunt
2016-01-09 7:18 ` Tom Hunt
0 siblings, 1 reply; 11+ messages in thread
From: Tom Hunt @ 2016-01-08 3:46 UTC (permalink / raw)
To: Qu Wenruo; +Cc: linux-btrfs
> You can try this method.
> But after that, *NEVER* put all the two devices online *TOGETHER*.
Tried this, with only one disk of the volume plugged in. Results:
[root@archiso ~]# btrfs check --init-extent-tree /dev/mapper/rootvol_1
warning, device 2 is missing
warning devid 2 not found already
repair mode will force to clear out log tree, Are you sure? [y/N]: y
Unable to find block group for 0
extent-tree.c:289: find_search_start: Assertion `1` failed.
btrfs[0x44161e]
btrfs(btrfs_reserve_extent+0xa7b)[0x4463db]
btrfs(btrfs_alloc_free_block+0x5f)[0x44649f]
btrfs(__btrfs_cow_block+0xc4)[0x437d64]
btrfs(btrfs_cow_block+0x35)[0x438365]
btrfs[0x43d3d6]
btrfs(btrfs_commit_transaction+0x95)[0x43f125]
btrfs(cmd_check+0x5ec)[0x429cdc]
btrfs(main+0x82)[0x40ef32]
/usr/lib/libc.so.6(__libc_start_main+0xf0)[0x7fe478ef0610]
btrfs(_start+0x29)[0x40f039]
On Thu, Jan 7, 2016 at 7:26 PM, Qu Wenruo <quwenruo@cn.fujitsu.com> wrote:
>
>
> Tom Hunt wrote on 2016/01/07 19:02 -0700:
>>>
>>> Does the sudden end means a segfault?
>>
>>
>> The sudden end means an end. The program terminated without any
>> further output or error indication.
>>
>>> And what's the output of btrfs-debug-tree /dev/mapper/rootvol_1 -b
>>> 6210223521792?
>>
>>
>> [root@archiso ~]# btrfs-debug-tree /dev/mapper/rootvol_1 -b 6210223521792
>> bad key ordering 49 50
>> leaf 6210223521792 items 123 free space 55 generation 257371 owner 1
>> fs uuid 91f7e058-1142-4036-b1f7-4f64163dc8ae
>> chunk uuid 6abf465c-c677-4879-a4ca-d632e43e01e4
>> item 0 key (7302 INODE_ITEM 0) itemoff 16123 itemsize 160
>> inode generation 37573 transid 37573 size 262144 nbytes
>> 1048576
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 1 key (7302 EXTENT_DATA 0) itemoff 16070 itemsize 53
>> extent data disk byte 7564439363584 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 2 key (7303 INODE_ITEM 0) itemoff 15910 itemsize 160
>> inode generation 37573 transid 37573 size 262144 nbytes
>> 786432
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 3 key (7303 EXTENT_DATA 0) itemoff 15857 itemsize 53
>> extent data disk byte 7564439662592 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 4 key (7304 INODE_ITEM 0) itemoff 15697 itemsize 160
>> inode generation 36550 transid 36550 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 5 key (7304 EXTENT_DATA 0) itemoff 15644 itemsize 53
>> extent data disk byte 7517322158080 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 6 key (7305 INODE_ITEM 0) itemoff 15484 itemsize 160
>> inode generation 37573 transid 37573 size 262144 nbytes
>> 524288
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 7 key (7305 EXTENT_DATA 0) itemoff 15431 itemsize 53
>> extent data disk byte 7564439941120 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 8 key (7306 INODE_ITEM 0) itemoff 15271 itemsize 160
>> inode generation 37573 transid 37573 size 262144 nbytes
>> 786432
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 9 key (7306 EXTENT_DATA 0) itemoff 15218 itemsize 53
>> extent data disk byte 7564440219648 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 10 key (7307 INODE_ITEM 0) itemoff 15058 itemsize 160
>> inode generation 37576 transid 37576 size 262144 nbytes
>> 1310720
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 11 key (7307 EXTENT_DATA 0) itemoff 15005 itemsize 53
>> extent data disk byte 7564425949184 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 12 key (7308 INODE_ITEM 0) itemoff 14845 itemsize 160
>> inode generation 36586 transid 36586 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 13 key (7308 EXTENT_DATA 0) itemoff 14792 itemsize 53
>> extent data disk byte 7355300618240 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 14 key (7309 INODE_ITEM 0) itemoff 14632 itemsize 160
>> inode generation 257365 transid 257365 size 262144
>> nbytes 11781537792
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 15 key (7309 EXTENT_DATA 0) itemoff 14579 itemsize 53
>> extent data disk byte 7770707218432 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 16 key (7310 INODE_ITEM 0) itemoff 14419 itemsize 160
>> inode generation 37590 transid 37590 size 262144 nbytes
>> 786432
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 17 key (7310 EXTENT_DATA 0) itemoff 14366 itemsize 53
>> extent data disk byte 7569787527168 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 18 key (7311 INODE_ITEM 0) itemoff 14206 itemsize 160
>> inode generation 37591 transid 37591 size 262144 nbytes
>> 1048576
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 19 key (7311 EXTENT_DATA 0) itemoff 14153 itemsize 53
>> extent data disk byte 7569797865472 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 20 key (7312 INODE_ITEM 0) itemoff 13993 itemsize 160
>> inode generation 36625 transid 36625 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 21 key (7312 EXTENT_DATA 0) itemoff 13940 itemsize 53
>> extent data disk byte 7517400543232 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 22 key (7313 INODE_ITEM 0) itemoff 13780 itemsize 160
>> inode generation 36634 transid 36634 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 23 key (7313 EXTENT_DATA 0) itemoff 13727 itemsize 53
>> extent data disk byte 7531318194176 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 24 key (7314 INODE_ITEM 0) itemoff 13567 itemsize 160
>> inode generation 239734 transid 239734 size 262144
>> nbytes 2359558144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 25 key (7314 EXTENT_DATA 0) itemoff 13514 itemsize 53
>> extent data disk byte 8005861564416 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 26 key (7315 INODE_ITEM 0) itemoff 13354 itemsize 160
>> inode generation 36652 transid 36652 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 27 key (7315 EXTENT_DATA 0) itemoff 13301 itemsize 53
>> extent data disk byte 4990757240832 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 28 key (7316 INODE_ITEM 0) itemoff 13141 itemsize 160
>> inode generation 36661 transid 36661 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 29 key (7316 EXTENT_DATA 0) itemoff 13088 itemsize 53
>> extent data disk byte 7066322538496 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 30 key (7317 INODE_ITEM 0) itemoff 12928 itemsize 160
>> inode generation 36672 transid 36672 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 31 key (7317 EXTENT_DATA 0) itemoff 12875 itemsize 53
>> extent data disk byte 7278922661888 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 32 key (7318 INODE_ITEM 0) itemoff 12715 itemsize 160
>> inode generation 36682 transid 36682 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 33 key (7318 EXTENT_DATA 0) itemoff 12662 itemsize 53
>> extent data disk byte 7313284538368 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 34 key (7319 INODE_ITEM 0) itemoff 12502 itemsize 160
>> inode generation 36692 transid 36692 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 35 key (7319 EXTENT_DATA 0) itemoff 12449 itemsize 53
>> extent data disk byte 7184434880512 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 36 key (7320 INODE_ITEM 0) itemoff 12289 itemsize 160
>> inode generation 36702 transid 36702 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 37 key (7320 EXTENT_DATA 0) itemoff 12236 itemsize 53
>> extent data disk byte 7518426820608 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 38 key (7321 INODE_ITEM 0) itemoff 12076 itemsize 160
>> inode generation 36711 transid 36711 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 39 key (7321 EXTENT_DATA 0) itemoff 12023 itemsize 53
>> extent data disk byte 7372338782208 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 40 key (7322 INODE_ITEM 0) itemoff 11863 itemsize 160
>> inode generation 36720 transid 36720 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 41 key (7322 EXTENT_DATA 0) itemoff 11810 itemsize 53
>> extent data disk byte 7526872854528 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 42 key (7323 INODE_ITEM 0) itemoff 11650 itemsize 160
>> inode generation 36729 transid 36729 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 43 key (7323 EXTENT_DATA 0) itemoff 11597 itemsize 53
>> extent data disk byte 4990756978688 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 44 key (7324 INODE_ITEM 0) itemoff 11437 itemsize 160
>> inode generation 36739 transid 36739 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 45 key (7324 EXTENT_DATA 0) itemoff 11384 itemsize 53
>> extent data disk byte 7520553996288 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 46 key (7325 INODE_ITEM 0) itemoff 11224 itemsize 160
>> inode generation 36749 transid 36749 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 47 key (7325 EXTENT_DATA 0) itemoff 11171 itemsize 53
>> extent data disk byte 7531508781056 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 48 key (7326 INODE_ITEM 0) itemoff 11011 itemsize 160
>> inode generation 251050 transid 251050 size 262144
>> nbytes 8435793920
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 49 key (7326 EXTENT_DATA 0) itemoff 10958 itemsize 53
>> extent data disk byte 7747063099392 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 50 key (7327 INODE_ITEM 0) itemoff 10798 itemsize 160
>> inode generation 36767 transid 36767 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 51 key (7327 EXTENT_DATA 0) itemoff 10745 itemsize 53
>> extent data disk byte 7517323468800 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 52 key (7328 INODE_ITEM 0) itemoff 10585 itemsize 160
>> inode generation 36777 transid 36777 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 53 key (7328 EXTENT_DATA 0) itemoff 10532 itemsize 53
>> extent data disk byte 7529166970880 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 54 key (7329 INODE_ITEM 0) itemoff 10372 itemsize 160
>> inode generation 40097 transid 40097 size 262144 nbytes
>> 82313216
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 55 key (7329 EXTENT_DATA 0) itemoff 10319 itemsize 53
>> extent data disk byte 7370190655488 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 56 key (3234 INODE_ITEM 0) itemoff 10159 itemsize 160
>> inode generation 36795 transid 36795 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 57 key (7346 EXTENT_DATA 0) itemoff 10106 itemsize 53
>> extent data disk byte 7521490550784 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>
> Item 56 and 57 are corrupted.
> Their inode number should be 7330, but they are not.
>
> If the output is valid, especially for the owner, then it means your free
> space cache is damaged, but that's a very small problem though.
>
>> item 58 key (7331 INODE_ITEM 0) itemoff 9946 itemsize 160
>> inode generation 36804 transid 36804 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 59 key (7331 EXTENT_DATA 0) itemoff 9893 itemsize 53
>> extent data disk byte 7526874955776 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 60 key (7332 INODE_ITEM 0) itemoff 9733 itemsize 160
>> inode generation 257363 transid 257363 size 262144
>> nbytes 13501202432
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 61 key (7332 EXTENT_DATA 0) itemoff 9680 itemsize 53
>> extent data disk byte 7747053572096 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 62 key (7333 INODE_ITEM 0) itemoff 9520 itemsize 160
>> inode generation 257371 transid 257371 size 262144
>> nbytes 16589520896
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 63 key (7333 EXTENT_DATA 0) itemoff 9467 itemsize 53
>> extent data disk byte 7775023665152 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 64 key (7334 INODE_ITEM 0) itemoff 9307 itemsize 160
>> inode generation 239755 transid 239755 size 262144
>> nbytes 13442482176
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 65 key (7334 EXTENT_DATA 0) itemoff 9254 itemsize 53
>> extent data disk byte 7896225873920 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 66 key (7335 INODE_ITEM 0) itemoff 9094 itemsize 160
>> inode generation 239755 transid 239755 size 262144
>> nbytes 1324613632
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 67 key (7335 EXTENT_DATA 0) itemoff 9041 itemsize 53
>> extent data disk byte 7896226185216 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 68 key (7336 INODE_ITEM 0) itemoff 8881 itemsize 160
>> inode generation 240953 transid 240953 size 262144
>> nbytes 3632529408
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 69 key (7336 EXTENT_DATA 0) itemoff 8828 itemsize 53
>> extent data disk byte 5919597350912 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 70 key (7337 INODE_ITEM 0) itemoff 8668 itemsize 160
>> inode generation 243010 transid 243010 size 262144
>> nbytes 2379481088
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 71 key (7337 EXTENT_DATA 0) itemoff 8615 itemsize 53
>> extent data disk byte 5918852136960 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 72 key (7338 INODE_ITEM 0) itemoff 8455 itemsize 160
>> inode generation 79477 transid 79477 size 262144 nbytes
>> 24117248
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 73 key (7338 EXTENT_DATA 0) itemoff 8402 itemsize 53
>> extent data disk byte 7715922624512 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 74 key (7339 INODE_ITEM 0) itemoff 8242 itemsize 160
>> inode generation 81958 transid 81958 size 262144 nbytes
>> 78381056
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 75 key (7339 EXTENT_DATA 0) itemoff 8189 itemsize 53
>> extent data disk byte 7721189564416 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 76 key (7340 INODE_ITEM 0) itemoff 8029 itemsize 160
>> inode generation 83591 transid 83591 size 262144
>> nbytes 165150720
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 77 key (7340 EXTENT_DATA 0) itemoff 7976 itemsize 53
>> extent data disk byte 7744960389120 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 78 key (7341 INODE_ITEM 0) itemoff 7816 itemsize 160
>> inode generation 47076 transid 47076 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 79 key (7341 EXTENT_DATA 0) itemoff 7763 itemsize 53
>> extent data disk byte 7518415810560 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 80 key (7342 INODE_ITEM 0) itemoff 7603 itemsize 160
>> inode generation 47085 transid 47085 size 262144 nbytes
>> 1048576
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 81 key (7342 EXTENT_DATA 0) itemoff 7550 itemsize 53
>> extent data disk byte 7532088664064 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 82 key (7343 INODE_ITEM 0) itemoff 7390 itemsize 160
>> inode generation 47077 transid 47077 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 83 key (7343 EXTENT_DATA 0) itemoff 7337 itemsize 53
>> extent data disk byte 7517316259840 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 84 key (7344 INODE_ITEM 0) itemoff 7177 itemsize 160
>> inode generation 47196 transid 47196 size 262144 nbytes
>> 22282240
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 85 key (7344 EXTENT_DATA 0) itemoff 7124 itemsize 53
>> extent data disk byte 6878509641728 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 86 key (7345 INODE_ITEM 0) itemoff 6964 itemsize 160
>> inode generation 47078 transid 47078 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 87 key (7345 EXTENT_DATA 0) itemoff 6911 itemsize 53
>> extent data disk byte 7517369085952 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 88 key (7346 INODE_ITEM 0) itemoff 6751 itemsize 160
>> inode generation 47235 transid 47235 size 262144 nbytes
>> 23592960
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 89 key (7346 EXTENT_DATA 0) itemoff 6698 itemsize 53
>> extent data disk byte 6878511214592 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 90 key (7347 INODE_ITEM 0) itemoff 6538 itemsize 160
>> inode generation 47078 transid 47078 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 91 key (7347 EXTENT_DATA 0) itemoff 6485 itemsize 53
>> extent data disk byte 7520553472000 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 92 key (7348 INODE_ITEM 0) itemoff 6325 itemsize 160
>> inode generation 47228 transid 47228 size 262144 nbytes
>> 22020096
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 93 key (7348 EXTENT_DATA 0) itemoff 6272 itemsize 53
>> extent data disk byte 6878522159104 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 94 key (7349 INODE_ITEM 0) itemoff 6112 itemsize 160
>> inode generation 47078 transid 47078 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 95 key (7349 EXTENT_DATA 0) itemoff 6059 itemsize 53
>> extent data disk byte 7531921424384 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 96 key (7350 INODE_ITEM 0) itemoff 5899 itemsize 160
>> inode generation 47181 transid 47181 size 262144 nbytes
>> 13631488
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 97 key (7350 EXTENT_DATA 0) itemoff 5846 itemsize 53
>> extent data disk byte 6878515281920 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 98 key (7351 INODE_ITEM 0) itemoff 5686 itemsize 160
>> inode generation 47078 transid 47078 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 99 key (7351 EXTENT_DATA 0) itemoff 5633 itemsize 53
>> extent data disk byte 7538744426496 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 100 key (7352 INODE_ITEM 0) itemoff 5473 itemsize 160
>> inode generation 47183 transid 47183 size 262144 nbytes
>> 11796480
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 101 key (7352 EXTENT_DATA 0) itemoff 5420 itemsize 53
>> extent data disk byte 6878518218752 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 102 key (7353 INODE_ITEM 0) itemoff 5260 itemsize 160
>> inode generation 47078 transid 47078 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 103 key (7353 EXTENT_DATA 0) itemoff 5207 itemsize 53
>> extent data disk byte 7540909154304 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 104 key (7354 INODE_ITEM 0) itemoff 5047 itemsize 160
>> inode generation 47196 transid 47196 size 262144 nbytes
>> 15466496
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 105 key (7354 EXTENT_DATA 0) itemoff 4994 itemsize 53
>> extent data disk byte 6878513303552 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 106 key (7355 INODE_ITEM 0) itemoff 4834 itemsize 160
>> inode generation 47078 transid 47078 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 107 key (7355 EXTENT_DATA 0) itemoff 4781 itemsize 53
>> extent data disk byte 7564487045120 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 108 key (7356 INODE_ITEM 0) itemoff 4621 itemsize 160
>> inode generation 47210 transid 47210 size 262144 nbytes
>> 19660800
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 109 key (7356 EXTENT_DATA 0) itemoff 4568 itemsize 53
>> extent data disk byte 6878541139968 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 110 key (7357 INODE_ITEM 0) itemoff 4408 itemsize 160
>> inode generation 47079 transid 47079 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 111 key (7357 EXTENT_DATA 0) itemoff 4355 itemsize 53
>> extent data disk byte 7538756612096 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 112 key (7358 INODE_ITEM 0) itemoff 4195 itemsize 160
>> inode generation 47079 transid 47079 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 113 key (7358 EXTENT_DATA 0) itemoff 4142 itemsize 53
>> extent data disk byte 7582721437696 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 114 key (7359 INODE_ITEM 0) itemoff 3982 itemsize 160
>> inode generation 82232 transid 82232 size 262144 nbytes
>> 44564480
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 115 key (7359 EXTENT_DATA 0) itemoff 3929 itemsize 53
>> extent data disk byte 7724558057472 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 116 key (7360 INODE_ITEM 0) itemoff 3769 itemsize 160
>> inode generation 47080 transid 47080 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 117 key (7360 EXTENT_DATA 0) itemoff 3716 itemsize 53
>> extent data disk byte 4658994225152 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 118 key (7361 INODE_ITEM 0) itemoff 3556 itemsize 160
>> inode generation 47080 transid 47080 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 119 key (7361 EXTENT_DATA 0) itemoff 3503 itemsize 53
>> extent data disk byte 6905566703616 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 120 key (7362 INODE_ITEM 0) itemoff 3343 itemsize 160
>> inode generation 79539 transid 79539 size 262144 nbytes
>> 38535168
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>> item 121 key (7362 EXTENT_DATA 0) itemoff 3290 itemsize 53
>> extent data disk byte 7720056217600 nr 262144
>> extent data offset 0 nr 262144 ram 262144
>> extent compression 0
>> item 122 key (7363 INODE_ITEM 0) itemoff 3130 itemsize 160
>> inode generation 47080 transid 47080 size 262144 nbytes
>> 262144
>> block group 0 mode 100600 links 1 uid 0 gid 0
>> rdev 0 flags 0x1b
>>
>>> If btrfs-debug-tree can still output things like below, and the leaf's
>>> owner is still 2, I'd recommend to run btrfsck --init-extent-tree, which
>>> should has a good chance to fix it.
>>
>>
>>> Although even in that case, I'm not 100% sure if it will work, or do more
>>> damage...
>>
>>
>> Would it be a sensible precaution to unplug one disk and attempt
>> recovery on a single one? If I understand correctly, all the data
>> should be available on either. This disk is quite significant to me,
>> and the other option is restoring from a week-old backup; annoying, if
>> not fatal.
>
>
> You can try this method.
> But after that, *NEVER* put all the two devices online *TOGETHER*.
>
> Thanks,
> Qu
>>
>>
>> For the record, I've also already bought new disks and will be
>> operating with those going forward, so a transfer of data will be
>> necessary in any case. (There was the possibility of hardware damage
>> from a flood a little while ago, and even if this is unrelated, I'm
>> paranoid about this volume.)
>>
>> On Thu, Jan 7, 2016 at 6:48 PM, Qu Wenruo <quwenruo@cn.fujitsu.com> wrote:
>>>
>>>
>>>
>>> Tom Hunt wrote on 2016/01/07 18:43 -0700:
>>>>
>>>>
>>>> I had done this already, but somehow forgot to include it. (Internet
>>>> suggests 'btrfs check' is synonym for 'btrfsck'; if this is not the
>>>> case, please advise.)
>>>>
>>>> [root@archiso ~]# btrfs check /dev/mapper/rootvol_1
>>>> bad key ordering 49 50
>>>> Checking filesystem on /dev/mapper/rootvol_1
>>>> UUID: 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>>> checking extents
>>>> bad key ordering 55 56
>>>> bad block 6210223521792
>>>> Errors found in extent allocation tree or chunk allocation
>>>> bad key ordering 55 56
>>>
>>>
>>>
>>> Does the sudden end means a segfault?
>>>
>>>>
>>>> And the other:
>>>>
>>>> [root@archiso ~]# btrfs-debug-tree /dev/mapper/rootvol_1 -b
>>>> 6210228551680
>>>> bad key ordering 49 50
>>>> leaf 6210228551680 items 195 free space 244 generation 257371 owner 2
>>>
>>>
>>>
>>> That's extent tree, not a big problem as the whole extent tree can be
>>> easily
>>> rebuilt.
>>>
>>> And what's the output of btrfs-debug-tree /dev/mapper/rootvol_1 -b
>>> 6210223521792?
>>>
>>> If btrfs-debug-tree can still output things like below, and the leaf's
>>> owner
>>> is still 2, I'd recommend to run btrfsck --init-extent-tree, which should
>>> has a good chance to fix it.
>>>
>>> Although even in that case, I'm not 100% sure if it will work, or do more
>>> damage...
>>>
>>> Thanks,
>>> Qu
>>>
>>>
>>>> fs uuid 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>>> chunk uuid 6abf465c-c677-4879-a4ca-d632e43e01e4
>>>> item 0 key (7777093095424 EXTENT_ITEM 4096) itemoff 16217
>>>> itemsize 66
>>>> extent refs 2 gen 96498 flags DATA
>>>> extent data backref root 258 objectid 1319842 offset
>>>> 16289792 count 1
>>>> shared data backref parent 7588669325312 count 1
>>>> item 1 key (7777093099520 EXTENT_ITEM 4096) itemoff 16151
>>>> itemsize 66
>>>> extent refs 2 gen 96498 flags DATA
>>>> extent data backref root 258 objectid 1319842 offset
>>>> 20484096 count 1
>>>> shared data backref parent 7588669325312 count 1
>>>> item 2 key (7777093103616 EXTENT_ITEM 4096) itemoff 16085
>>>> itemsize 66
>>>> extent refs 2 gen 96498 flags DATA
>>>> extent data backref root 258 objectid 1319842 offset
>>>> 22581248 count 1
>>>> shared data backref parent 7588669325312 count 1
>>>> item 3 key (7777093107712 EXTENT_ITEM 4096) itemoff 16019
>>>> itemsize 66
>>>> extent refs 2 gen 96501 flags DATA
>>>> extent data backref root 258 objectid 1319842 offset
>>>> 56135680 count 1
>>>> shared data backref parent 7343916351488 count 1
>>>> item 4 key (7777093111808 EXTENT_ITEM 4096) itemoff 15953
>>>> itemsize 66
>>>> extent refs 2 gen 96501 flags DATA
>>>> extent data backref root 258 objectid 1319842 offset
>>>> 58232832 count 1
>>>> shared data backref parent 7343916351488 count 1
>>>> item 5 key (7777093115904 EXTENT_ITEM 4096) itemoff 15887
>>>> itemsize 66
>>>> extent refs 2 gen 96511 flags DATA
>>>> extent data backref root 258 objectid 1319842 offset
>>>> 35164160 count 1
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--
Tom Dickson-Hunt
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Recovery of a raid1 FS
2016-01-08 3:46 ` Tom Hunt
@ 2016-01-09 7:18 ` Tom Hunt
2016-01-11 1:50 ` Qu Wenruo
0 siblings, 1 reply; 11+ messages in thread
From: Tom Hunt @ 2016-01-09 7:18 UTC (permalink / raw)
To: Qu Wenruo; +Cc: linux-btrfs
Just for fun, I tried btrfs check --repair, but no dice:
[root@archiso ~]# btrfs check --repair /dev/mapper/rootvol_1
enabling repair mode
warning, device 2 is missing
warning devid 2 not found already
bad key ordering 49 50
repair mode will force to clear out log tree, Are you sure? [y/N]: y
Unable to find block group for 0
extent-tree.c:289: find_search_start: Assertion `1` failed.
btrfs[0x44161e]
btrfs(btrfs_reserve_extent+0xa7b)[0x4463db]
btrfs(btrfs_alloc_free_block+0x5f)[0x44649f]
btrfs(__btrfs_cow_block+0xc4)[0x437d64]
btrfs(btrfs_cow_block+0x35)[0x438365]
btrfs[0x43d3d6]
btrfs(btrfs_commit_transaction+0x95)[0x43f125]
btrfs(cmd_check+0x5ec)[0x429cdc]
btrfs(main+0x82)[0x40ef32]
/usr/lib/libc.so.6(__libc_start_main+0xf0)[0x7f265ba38610]
btrfs(_start+0x29)[0x40f039]
Seems to be the same point at which they both fail. I have no idea
what might be the cause.
On Thu, Jan 7, 2016 at 8:46 PM, Tom Hunt <tomdicksonhunt@gmail.com> wrote:
>> You can try this method.
>> But after that, *NEVER* put all the two devices online *TOGETHER*.
>
> Tried this, with only one disk of the volume plugged in. Results:
>
> [root@archiso ~]# btrfs check --init-extent-tree /dev/mapper/rootvol_1
> warning, device 2 is missing
> warning devid 2 not found already
> repair mode will force to clear out log tree, Are you sure? [y/N]: y
> Unable to find block group for 0
> extent-tree.c:289: find_search_start: Assertion `1` failed.
> btrfs[0x44161e]
> btrfs(btrfs_reserve_extent+0xa7b)[0x4463db]
> btrfs(btrfs_alloc_free_block+0x5f)[0x44649f]
> btrfs(__btrfs_cow_block+0xc4)[0x437d64]
> btrfs(btrfs_cow_block+0x35)[0x438365]
> btrfs[0x43d3d6]
> btrfs(btrfs_commit_transaction+0x95)[0x43f125]
> btrfs(cmd_check+0x5ec)[0x429cdc]
> btrfs(main+0x82)[0x40ef32]
> /usr/lib/libc.so.6(__libc_start_main+0xf0)[0x7fe478ef0610]
> btrfs(_start+0x29)[0x40f039]
>
> On Thu, Jan 7, 2016 at 7:26 PM, Qu Wenruo <quwenruo@cn.fujitsu.com> wrote:
>>
>>
>> Tom Hunt wrote on 2016/01/07 19:02 -0700:
>>>>
>>>> Does the sudden end means a segfault?
>>>
>>>
>>> The sudden end means an end. The program terminated without any
>>> further output or error indication.
>>>
>>>> And what's the output of btrfs-debug-tree /dev/mapper/rootvol_1 -b
>>>> 6210223521792?
>>>
>>>
>>> [root@archiso ~]# btrfs-debug-tree /dev/mapper/rootvol_1 -b 6210223521792
>>> bad key ordering 49 50
>>> leaf 6210223521792 items 123 free space 55 generation 257371 owner 1
>>> fs uuid 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>> chunk uuid 6abf465c-c677-4879-a4ca-d632e43e01e4
>>> item 0 key (7302 INODE_ITEM 0) itemoff 16123 itemsize 160
>>> inode generation 37573 transid 37573 size 262144 nbytes
>>> 1048576
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 1 key (7302 EXTENT_DATA 0) itemoff 16070 itemsize 53
>>> extent data disk byte 7564439363584 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 2 key (7303 INODE_ITEM 0) itemoff 15910 itemsize 160
>>> inode generation 37573 transid 37573 size 262144 nbytes
>>> 786432
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 3 key (7303 EXTENT_DATA 0) itemoff 15857 itemsize 53
>>> extent data disk byte 7564439662592 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 4 key (7304 INODE_ITEM 0) itemoff 15697 itemsize 160
>>> inode generation 36550 transid 36550 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 5 key (7304 EXTENT_DATA 0) itemoff 15644 itemsize 53
>>> extent data disk byte 7517322158080 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 6 key (7305 INODE_ITEM 0) itemoff 15484 itemsize 160
>>> inode generation 37573 transid 37573 size 262144 nbytes
>>> 524288
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 7 key (7305 EXTENT_DATA 0) itemoff 15431 itemsize 53
>>> extent data disk byte 7564439941120 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 8 key (7306 INODE_ITEM 0) itemoff 15271 itemsize 160
>>> inode generation 37573 transid 37573 size 262144 nbytes
>>> 786432
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 9 key (7306 EXTENT_DATA 0) itemoff 15218 itemsize 53
>>> extent data disk byte 7564440219648 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 10 key (7307 INODE_ITEM 0) itemoff 15058 itemsize 160
>>> inode generation 37576 transid 37576 size 262144 nbytes
>>> 1310720
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 11 key (7307 EXTENT_DATA 0) itemoff 15005 itemsize 53
>>> extent data disk byte 7564425949184 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 12 key (7308 INODE_ITEM 0) itemoff 14845 itemsize 160
>>> inode generation 36586 transid 36586 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 13 key (7308 EXTENT_DATA 0) itemoff 14792 itemsize 53
>>> extent data disk byte 7355300618240 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 14 key (7309 INODE_ITEM 0) itemoff 14632 itemsize 160
>>> inode generation 257365 transid 257365 size 262144
>>> nbytes 11781537792
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 15 key (7309 EXTENT_DATA 0) itemoff 14579 itemsize 53
>>> extent data disk byte 7770707218432 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 16 key (7310 INODE_ITEM 0) itemoff 14419 itemsize 160
>>> inode generation 37590 transid 37590 size 262144 nbytes
>>> 786432
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 17 key (7310 EXTENT_DATA 0) itemoff 14366 itemsize 53
>>> extent data disk byte 7569787527168 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 18 key (7311 INODE_ITEM 0) itemoff 14206 itemsize 160
>>> inode generation 37591 transid 37591 size 262144 nbytes
>>> 1048576
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 19 key (7311 EXTENT_DATA 0) itemoff 14153 itemsize 53
>>> extent data disk byte 7569797865472 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 20 key (7312 INODE_ITEM 0) itemoff 13993 itemsize 160
>>> inode generation 36625 transid 36625 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 21 key (7312 EXTENT_DATA 0) itemoff 13940 itemsize 53
>>> extent data disk byte 7517400543232 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 22 key (7313 INODE_ITEM 0) itemoff 13780 itemsize 160
>>> inode generation 36634 transid 36634 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 23 key (7313 EXTENT_DATA 0) itemoff 13727 itemsize 53
>>> extent data disk byte 7531318194176 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 24 key (7314 INODE_ITEM 0) itemoff 13567 itemsize 160
>>> inode generation 239734 transid 239734 size 262144
>>> nbytes 2359558144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 25 key (7314 EXTENT_DATA 0) itemoff 13514 itemsize 53
>>> extent data disk byte 8005861564416 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 26 key (7315 INODE_ITEM 0) itemoff 13354 itemsize 160
>>> inode generation 36652 transid 36652 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 27 key (7315 EXTENT_DATA 0) itemoff 13301 itemsize 53
>>> extent data disk byte 4990757240832 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 28 key (7316 INODE_ITEM 0) itemoff 13141 itemsize 160
>>> inode generation 36661 transid 36661 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 29 key (7316 EXTENT_DATA 0) itemoff 13088 itemsize 53
>>> extent data disk byte 7066322538496 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 30 key (7317 INODE_ITEM 0) itemoff 12928 itemsize 160
>>> inode generation 36672 transid 36672 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 31 key (7317 EXTENT_DATA 0) itemoff 12875 itemsize 53
>>> extent data disk byte 7278922661888 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 32 key (7318 INODE_ITEM 0) itemoff 12715 itemsize 160
>>> inode generation 36682 transid 36682 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 33 key (7318 EXTENT_DATA 0) itemoff 12662 itemsize 53
>>> extent data disk byte 7313284538368 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 34 key (7319 INODE_ITEM 0) itemoff 12502 itemsize 160
>>> inode generation 36692 transid 36692 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 35 key (7319 EXTENT_DATA 0) itemoff 12449 itemsize 53
>>> extent data disk byte 7184434880512 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 36 key (7320 INODE_ITEM 0) itemoff 12289 itemsize 160
>>> inode generation 36702 transid 36702 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 37 key (7320 EXTENT_DATA 0) itemoff 12236 itemsize 53
>>> extent data disk byte 7518426820608 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 38 key (7321 INODE_ITEM 0) itemoff 12076 itemsize 160
>>> inode generation 36711 transid 36711 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 39 key (7321 EXTENT_DATA 0) itemoff 12023 itemsize 53
>>> extent data disk byte 7372338782208 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 40 key (7322 INODE_ITEM 0) itemoff 11863 itemsize 160
>>> inode generation 36720 transid 36720 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 41 key (7322 EXTENT_DATA 0) itemoff 11810 itemsize 53
>>> extent data disk byte 7526872854528 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 42 key (7323 INODE_ITEM 0) itemoff 11650 itemsize 160
>>> inode generation 36729 transid 36729 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 43 key (7323 EXTENT_DATA 0) itemoff 11597 itemsize 53
>>> extent data disk byte 4990756978688 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 44 key (7324 INODE_ITEM 0) itemoff 11437 itemsize 160
>>> inode generation 36739 transid 36739 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 45 key (7324 EXTENT_DATA 0) itemoff 11384 itemsize 53
>>> extent data disk byte 7520553996288 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 46 key (7325 INODE_ITEM 0) itemoff 11224 itemsize 160
>>> inode generation 36749 transid 36749 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 47 key (7325 EXTENT_DATA 0) itemoff 11171 itemsize 53
>>> extent data disk byte 7531508781056 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 48 key (7326 INODE_ITEM 0) itemoff 11011 itemsize 160
>>> inode generation 251050 transid 251050 size 262144
>>> nbytes 8435793920
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 49 key (7326 EXTENT_DATA 0) itemoff 10958 itemsize 53
>>> extent data disk byte 7747063099392 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 50 key (7327 INODE_ITEM 0) itemoff 10798 itemsize 160
>>> inode generation 36767 transid 36767 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 51 key (7327 EXTENT_DATA 0) itemoff 10745 itemsize 53
>>> extent data disk byte 7517323468800 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 52 key (7328 INODE_ITEM 0) itemoff 10585 itemsize 160
>>> inode generation 36777 transid 36777 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 53 key (7328 EXTENT_DATA 0) itemoff 10532 itemsize 53
>>> extent data disk byte 7529166970880 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 54 key (7329 INODE_ITEM 0) itemoff 10372 itemsize 160
>>> inode generation 40097 transid 40097 size 262144 nbytes
>>> 82313216
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 55 key (7329 EXTENT_DATA 0) itemoff 10319 itemsize 53
>>> extent data disk byte 7370190655488 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 56 key (3234 INODE_ITEM 0) itemoff 10159 itemsize 160
>>> inode generation 36795 transid 36795 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 57 key (7346 EXTENT_DATA 0) itemoff 10106 itemsize 53
>>> extent data disk byte 7521490550784 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>
>> Item 56 and 57 are corrupted.
>> Their inode number should be 7330, but they are not.
>>
>> If the output is valid, especially for the owner, then it means your free
>> space cache is damaged, but that's a very small problem though.
>>
>>> item 58 key (7331 INODE_ITEM 0) itemoff 9946 itemsize 160
>>> inode generation 36804 transid 36804 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 59 key (7331 EXTENT_DATA 0) itemoff 9893 itemsize 53
>>> extent data disk byte 7526874955776 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 60 key (7332 INODE_ITEM 0) itemoff 9733 itemsize 160
>>> inode generation 257363 transid 257363 size 262144
>>> nbytes 13501202432
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 61 key (7332 EXTENT_DATA 0) itemoff 9680 itemsize 53
>>> extent data disk byte 7747053572096 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 62 key (7333 INODE_ITEM 0) itemoff 9520 itemsize 160
>>> inode generation 257371 transid 257371 size 262144
>>> nbytes 16589520896
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 63 key (7333 EXTENT_DATA 0) itemoff 9467 itemsize 53
>>> extent data disk byte 7775023665152 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 64 key (7334 INODE_ITEM 0) itemoff 9307 itemsize 160
>>> inode generation 239755 transid 239755 size 262144
>>> nbytes 13442482176
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 65 key (7334 EXTENT_DATA 0) itemoff 9254 itemsize 53
>>> extent data disk byte 7896225873920 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 66 key (7335 INODE_ITEM 0) itemoff 9094 itemsize 160
>>> inode generation 239755 transid 239755 size 262144
>>> nbytes 1324613632
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 67 key (7335 EXTENT_DATA 0) itemoff 9041 itemsize 53
>>> extent data disk byte 7896226185216 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 68 key (7336 INODE_ITEM 0) itemoff 8881 itemsize 160
>>> inode generation 240953 transid 240953 size 262144
>>> nbytes 3632529408
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 69 key (7336 EXTENT_DATA 0) itemoff 8828 itemsize 53
>>> extent data disk byte 5919597350912 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 70 key (7337 INODE_ITEM 0) itemoff 8668 itemsize 160
>>> inode generation 243010 transid 243010 size 262144
>>> nbytes 2379481088
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 71 key (7337 EXTENT_DATA 0) itemoff 8615 itemsize 53
>>> extent data disk byte 5918852136960 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 72 key (7338 INODE_ITEM 0) itemoff 8455 itemsize 160
>>> inode generation 79477 transid 79477 size 262144 nbytes
>>> 24117248
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 73 key (7338 EXTENT_DATA 0) itemoff 8402 itemsize 53
>>> extent data disk byte 7715922624512 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 74 key (7339 INODE_ITEM 0) itemoff 8242 itemsize 160
>>> inode generation 81958 transid 81958 size 262144 nbytes
>>> 78381056
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 75 key (7339 EXTENT_DATA 0) itemoff 8189 itemsize 53
>>> extent data disk byte 7721189564416 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 76 key (7340 INODE_ITEM 0) itemoff 8029 itemsize 160
>>> inode generation 83591 transid 83591 size 262144
>>> nbytes 165150720
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 77 key (7340 EXTENT_DATA 0) itemoff 7976 itemsize 53
>>> extent data disk byte 7744960389120 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 78 key (7341 INODE_ITEM 0) itemoff 7816 itemsize 160
>>> inode generation 47076 transid 47076 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 79 key (7341 EXTENT_DATA 0) itemoff 7763 itemsize 53
>>> extent data disk byte 7518415810560 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 80 key (7342 INODE_ITEM 0) itemoff 7603 itemsize 160
>>> inode generation 47085 transid 47085 size 262144 nbytes
>>> 1048576
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 81 key (7342 EXTENT_DATA 0) itemoff 7550 itemsize 53
>>> extent data disk byte 7532088664064 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 82 key (7343 INODE_ITEM 0) itemoff 7390 itemsize 160
>>> inode generation 47077 transid 47077 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 83 key (7343 EXTENT_DATA 0) itemoff 7337 itemsize 53
>>> extent data disk byte 7517316259840 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 84 key (7344 INODE_ITEM 0) itemoff 7177 itemsize 160
>>> inode generation 47196 transid 47196 size 262144 nbytes
>>> 22282240
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 85 key (7344 EXTENT_DATA 0) itemoff 7124 itemsize 53
>>> extent data disk byte 6878509641728 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 86 key (7345 INODE_ITEM 0) itemoff 6964 itemsize 160
>>> inode generation 47078 transid 47078 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 87 key (7345 EXTENT_DATA 0) itemoff 6911 itemsize 53
>>> extent data disk byte 7517369085952 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 88 key (7346 INODE_ITEM 0) itemoff 6751 itemsize 160
>>> inode generation 47235 transid 47235 size 262144 nbytes
>>> 23592960
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 89 key (7346 EXTENT_DATA 0) itemoff 6698 itemsize 53
>>> extent data disk byte 6878511214592 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 90 key (7347 INODE_ITEM 0) itemoff 6538 itemsize 160
>>> inode generation 47078 transid 47078 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 91 key (7347 EXTENT_DATA 0) itemoff 6485 itemsize 53
>>> extent data disk byte 7520553472000 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 92 key (7348 INODE_ITEM 0) itemoff 6325 itemsize 160
>>> inode generation 47228 transid 47228 size 262144 nbytes
>>> 22020096
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 93 key (7348 EXTENT_DATA 0) itemoff 6272 itemsize 53
>>> extent data disk byte 6878522159104 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 94 key (7349 INODE_ITEM 0) itemoff 6112 itemsize 160
>>> inode generation 47078 transid 47078 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 95 key (7349 EXTENT_DATA 0) itemoff 6059 itemsize 53
>>> extent data disk byte 7531921424384 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 96 key (7350 INODE_ITEM 0) itemoff 5899 itemsize 160
>>> inode generation 47181 transid 47181 size 262144 nbytes
>>> 13631488
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 97 key (7350 EXTENT_DATA 0) itemoff 5846 itemsize 53
>>> extent data disk byte 6878515281920 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 98 key (7351 INODE_ITEM 0) itemoff 5686 itemsize 160
>>> inode generation 47078 transid 47078 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 99 key (7351 EXTENT_DATA 0) itemoff 5633 itemsize 53
>>> extent data disk byte 7538744426496 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 100 key (7352 INODE_ITEM 0) itemoff 5473 itemsize 160
>>> inode generation 47183 transid 47183 size 262144 nbytes
>>> 11796480
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 101 key (7352 EXTENT_DATA 0) itemoff 5420 itemsize 53
>>> extent data disk byte 6878518218752 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 102 key (7353 INODE_ITEM 0) itemoff 5260 itemsize 160
>>> inode generation 47078 transid 47078 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 103 key (7353 EXTENT_DATA 0) itemoff 5207 itemsize 53
>>> extent data disk byte 7540909154304 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 104 key (7354 INODE_ITEM 0) itemoff 5047 itemsize 160
>>> inode generation 47196 transid 47196 size 262144 nbytes
>>> 15466496
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 105 key (7354 EXTENT_DATA 0) itemoff 4994 itemsize 53
>>> extent data disk byte 6878513303552 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 106 key (7355 INODE_ITEM 0) itemoff 4834 itemsize 160
>>> inode generation 47078 transid 47078 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 107 key (7355 EXTENT_DATA 0) itemoff 4781 itemsize 53
>>> extent data disk byte 7564487045120 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 108 key (7356 INODE_ITEM 0) itemoff 4621 itemsize 160
>>> inode generation 47210 transid 47210 size 262144 nbytes
>>> 19660800
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 109 key (7356 EXTENT_DATA 0) itemoff 4568 itemsize 53
>>> extent data disk byte 6878541139968 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 110 key (7357 INODE_ITEM 0) itemoff 4408 itemsize 160
>>> inode generation 47079 transid 47079 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 111 key (7357 EXTENT_DATA 0) itemoff 4355 itemsize 53
>>> extent data disk byte 7538756612096 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 112 key (7358 INODE_ITEM 0) itemoff 4195 itemsize 160
>>> inode generation 47079 transid 47079 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 113 key (7358 EXTENT_DATA 0) itemoff 4142 itemsize 53
>>> extent data disk byte 7582721437696 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 114 key (7359 INODE_ITEM 0) itemoff 3982 itemsize 160
>>> inode generation 82232 transid 82232 size 262144 nbytes
>>> 44564480
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 115 key (7359 EXTENT_DATA 0) itemoff 3929 itemsize 53
>>> extent data disk byte 7724558057472 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 116 key (7360 INODE_ITEM 0) itemoff 3769 itemsize 160
>>> inode generation 47080 transid 47080 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 117 key (7360 EXTENT_DATA 0) itemoff 3716 itemsize 53
>>> extent data disk byte 4658994225152 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 118 key (7361 INODE_ITEM 0) itemoff 3556 itemsize 160
>>> inode generation 47080 transid 47080 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 119 key (7361 EXTENT_DATA 0) itemoff 3503 itemsize 53
>>> extent data disk byte 6905566703616 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 120 key (7362 INODE_ITEM 0) itemoff 3343 itemsize 160
>>> inode generation 79539 transid 79539 size 262144 nbytes
>>> 38535168
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>> item 121 key (7362 EXTENT_DATA 0) itemoff 3290 itemsize 53
>>> extent data disk byte 7720056217600 nr 262144
>>> extent data offset 0 nr 262144 ram 262144
>>> extent compression 0
>>> item 122 key (7363 INODE_ITEM 0) itemoff 3130 itemsize 160
>>> inode generation 47080 transid 47080 size 262144 nbytes
>>> 262144
>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>> rdev 0 flags 0x1b
>>>
>>>> If btrfs-debug-tree can still output things like below, and the leaf's
>>>> owner is still 2, I'd recommend to run btrfsck --init-extent-tree, which
>>>> should has a good chance to fix it.
>>>
>>>
>>>> Although even in that case, I'm not 100% sure if it will work, or do more
>>>> damage...
>>>
>>>
>>> Would it be a sensible precaution to unplug one disk and attempt
>>> recovery on a single one? If I understand correctly, all the data
>>> should be available on either. This disk is quite significant to me,
>>> and the other option is restoring from a week-old backup; annoying, if
>>> not fatal.
>>
>>
>> You can try this method.
>> But after that, *NEVER* put all the two devices online *TOGETHER*.
>>
>> Thanks,
>> Qu
>>>
>>>
>>> For the record, I've also already bought new disks and will be
>>> operating with those going forward, so a transfer of data will be
>>> necessary in any case. (There was the possibility of hardware damage
>>> from a flood a little while ago, and even if this is unrelated, I'm
>>> paranoid about this volume.)
>>>
>>> On Thu, Jan 7, 2016 at 6:48 PM, Qu Wenruo <quwenruo@cn.fujitsu.com> wrote:
>>>>
>>>>
>>>>
>>>> Tom Hunt wrote on 2016/01/07 18:43 -0700:
>>>>>
>>>>>
>>>>> I had done this already, but somehow forgot to include it. (Internet
>>>>> suggests 'btrfs check' is synonym for 'btrfsck'; if this is not the
>>>>> case, please advise.)
>>>>>
>>>>> [root@archiso ~]# btrfs check /dev/mapper/rootvol_1
>>>>> bad key ordering 49 50
>>>>> Checking filesystem on /dev/mapper/rootvol_1
>>>>> UUID: 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>>>> checking extents
>>>>> bad key ordering 55 56
>>>>> bad block 6210223521792
>>>>> Errors found in extent allocation tree or chunk allocation
>>>>> bad key ordering 55 56
>>>>
>>>>
>>>>
>>>> Does the sudden end means a segfault?
>>>>
>>>>>
>>>>> And the other:
>>>>>
>>>>> [root@archiso ~]# btrfs-debug-tree /dev/mapper/rootvol_1 -b
>>>>> 6210228551680
>>>>> bad key ordering 49 50
>>>>> leaf 6210228551680 items 195 free space 244 generation 257371 owner 2
>>>>
>>>>
>>>>
>>>> That's extent tree, not a big problem as the whole extent tree can be
>>>> easily
>>>> rebuilt.
>>>>
>>>> And what's the output of btrfs-debug-tree /dev/mapper/rootvol_1 -b
>>>> 6210223521792?
>>>>
>>>> If btrfs-debug-tree can still output things like below, and the leaf's
>>>> owner
>>>> is still 2, I'd recommend to run btrfsck --init-extent-tree, which should
>>>> has a good chance to fix it.
>>>>
>>>> Although even in that case, I'm not 100% sure if it will work, or do more
>>>> damage...
>>>>
>>>> Thanks,
>>>> Qu
>>>>
>>>>
>>>>> fs uuid 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>>>> chunk uuid 6abf465c-c677-4879-a4ca-d632e43e01e4
>>>>> item 0 key (7777093095424 EXTENT_ITEM 4096) itemoff 16217
>>>>> itemsize 66
>>>>> extent refs 2 gen 96498 flags DATA
>>>>> extent data backref root 258 objectid 1319842 offset
>>>>> 16289792 count 1
>>>>> shared data backref parent 7588669325312 count 1
>>>>> item 1 key (7777093099520 EXTENT_ITEM 4096) itemoff 16151
>>>>> itemsize 66
>>>>> extent refs 2 gen 96498 flags DATA
>>>>> extent data backref root 258 objectid 1319842 offset
>>>>> 20484096 count 1
>>>>> shared data backref parent 7588669325312 count 1
>>>>> item 2 key (7777093103616 EXTENT_ITEM 4096) itemoff 16085
>>>>> itemsize 66
>>>>> extent refs 2 gen 96498 flags DATA
>>>>> extent data backref root 258 objectid 1319842 offset
>>>>> 22581248 count 1
>>>>> shared data backref parent 7588669325312 count 1
>>>>> item 3 key (7777093107712 EXTENT_ITEM 4096) itemoff 16019
>>>>> itemsize 66
>>>>> extent refs 2 gen 96501 flags DATA
>>>>> extent data backref root 258 objectid 1319842 offset
>>>>> 56135680 count 1
>>>>> shared data backref parent 7343916351488 count 1
>>>>> item 4 key (7777093111808 EXTENT_ITEM 4096) itemoff 15953
>>>>> itemsize 66
>>>>> extent refs 2 gen 96501 flags DATA
>>>>> extent data backref root 258 objectid 1319842 offset
>>>>> 58232832 count 1
>>>>> shared data backref parent 7343916351488 count 1
>>>>> item 5 key (7777093115904 EXTENT_ITEM 4096) itemoff 15887
>>>>> itemsize 66
>>>>> extent refs 2 gen 96511 flags DATA
>>>>> extent data backref root 258 objectid 1319842 offset
>>>>> 35164160 count 1
>>>>> shared data backref parent 7588669325312 count 1
>>>>> item 6 key (7777093120000 EXTENT_ITEM 4096) itemoff 15821
>>>>> itemsize 66
>>>>> extent refs 2 gen 96511 flags DATA
>>>>> extent data backref root 258 objectid 1319842 offset
>>>>> 37261312 count 1
>>>>> shared data backref parent 7588669325312 count 1
>>>>> item 7 key (7777093124096 EXTENT_ITEM 4096) itemoff 15755
>>>>> itemsize 66
>>>>> extent refs 2 gen 96521 flags DATA
>>>>> extent data backref root 258 objectid 1319842 offset
>>>>> 45649920 count 1
>>>>> shared data backref parent 7343916351488 count 1
>>>>> item 8 key (7777093128192 EXTENT_ITEM 4096) itemoff 15689
>>>>> itemsize 66
>>>>> extent refs 2 gen 96521 flags DATA
>>>>> extent data backref root 258 objectid 1319842 offset
>>>>> 47747072 count 1
>>>>> shared data backref parent 7343916351488 count 1
>>>>> item 9 key (7777093132288 EXTENT_ITEM 4096) itemoff 15636
>>>>> itemsize 53
>>>>> extent refs 1 gen 128816 flags DATA
>>>>> extent data backref root 258 objectid 1747043 offset
>>>>> 208896 count 1
>>>>> item 10 key (7777093136384 EXTENT_ITEM 4096) itemoff 15583
>>>>> itemsize 53
>>>>> extent refs 1 gen 128816 flags DATA
>>>>> extent data backref root 258 objectid 1747043 offset
>>>>> 1191936 count 1
>>>>> item 11 key (7777093140480 EXTENT_ITEM 4096) itemoff 15530
>>>>> itemsize 53
>>>>> extent refs 1 gen 128816 flags DATA
>>>>> extent data backref root 258 objectid 1747043 offset
>>>>> 1896448 count 1
>>>>> item 12 key (7777093144576 EXTENT_ITEM 4096) itemoff 15477
>>>>> itemsize 53
>>>>> extent refs 1 gen 128824 flags DATA
>>>>> extent data backref root 258 objectid 1746670 offset
>>>>> 3141632 count 1
>>>>> item 13 key (7777093148672 EXTENT_ITEM 4096) itemoff 15424
>>>>> itemsize 53
>>>>> extent refs 1 gen 128824 flags DATA
>>>>> extent data backref root 258 objectid 1746670 offset
>>>>> 7335936 count 1
>>>>> item 14 key (7777093152768 EXTENT_ITEM 4096) itemoff 15371
>>>>> itemsize 53
>>>>> extent refs 1 gen 128827 flags DATA
>>>>> extent data backref root 258 objectid 1746598 offset
>>>>> 2142208 count 1
>>>>> item 15 key (7777093156864 EXTENT_ITEM 4096) itemoff 15318
>>>>> itemsize 53
>>>>> extent refs 1 gen 128827 flags DATA
>>>>> extent data backref root 258 objectid 1746598 offset
>>>>> 6336512 count 1
>>>>> item 16 key (7777093160960 EXTENT_ITEM 1167360) itemoff 15265
>>>>> itemsize 53
>>>>> extent refs 1 gen 148358 flags DATA
>>>>> extent data backref root 258 objectid 800697 offset
>>>>> 219987968 count 1
>>>>> item 17 key (7777094328320 EXTENT_ITEM 4096) itemoff 15212
>>>>> itemsize 53
>>>>> extent refs 1 gen 152899 flags DATA
>>>>> extent data backref root 258 objectid 2111468 offset
>>>>> 909312 count 1
>>>>> item 18 key (7777094332416 EXTENT_ITEM 20480) itemoff 15159
>>>>> itemsize 53
>>>>> extent refs 1 gen 185891 flags DATA
>>>>> extent data backref root 7565 objectid 135103 offset 0
>>>>> count 1
>>>>> item 19 key (7777094356992 EXTENT_ITEM 18608128) itemoff 15106
>>>>> itemsize 53
>>>>> extent refs 1 gen 93646 flags DATA
>>>>> extent data backref root 257 objectid 1798430 offset 0
>>>>> count 1
>>>>> item 20 key (7777112965120 EXTENT_ITEM 2465792) itemoff 15053
>>>>> itemsize 53
>>>>> extent refs 1 gen 93647 flags DATA
>>>>> extent data backref root 257 objectid 1798304 offset 0
>>>>> count 1
>>>>> item 21 key (7777115430912 EXTENT_ITEM 2441216) itemoff 15000
>>>>> itemsize 53
>>>>> extent refs 1 gen 93647 flags DATA
>>>>> extent data backref root 257 objectid 1798413 offset 0
>>>>> count 1
>>>>> item 22 key (7777117872128 EXTENT_ITEM 2617344) itemoff 14947
>>>>> itemsize 53
>>>>> extent refs 1 gen 93647 flags DATA
>>>>> extent data backref root 257 objectid 1798416 offset 0
>>>>> count 1
>>>>> item 23 key (7777120489472 EXTENT_ITEM 2592768) itemoff 14894
>>>>> itemsize 53
>>>>> extent refs 1 gen 93647 flags DATA
>>>>> extent data backref root 257 objectid 1798419 offset 0
>>>>> count 1
>>>>> item 24 key (7777123082240 EXTENT_ITEM 2355200) itemoff 14841
>>>>> itemsize 53
>>>>> extent refs 1 gen 93647 flags DATA
>>>>> extent data backref root 257 objectid 1798422 offset 0
>>>>> count 1
>>>>> item 25 key (7777125437440 EXTENT_ITEM 2469888) itemoff 14788
>>>>> itemsize 53
>>>>> extent refs 1 gen 93647 flags DATA
>>>>> extent data backref root 257 objectid 1798425 offset 0
>>>>> count 1
>>>>> item 26 key (7777127907328 EXTENT_ITEM 2646016) itemoff 14735
>>>>> itemsize 53
>>>>> extent refs 1 gen 93647 flags DATA
>>>>> extent data backref root 257 objectid 1798428 offset 0
>>>>> count 1
>>>>> item 27 key (7777130553344 EXTENT_ITEM 2461696) itemoff 14682
>>>>> itemsize 53
>>>>> extent refs 1 gen 93647 flags DATA
>>>>> extent data backref root 257 objectid 1798446 offset 0
>>>>> count 1
>>>>> item 28 key (7777133015040 EXTENT_ITEM 2637824) itemoff 14629
>>>>> itemsize 53
>>>>> extent refs 1 gen 93647 flags DATA
>>>>> extent data backref root 257 objectid 1798449 offset 0
>>>>> count 1
>>>>> item 29 key (7777135652864 EXTENT_ITEM 2609152) itemoff 14576
>>>>> itemsize 53
>>>>> extent refs 1 gen 93647 flags DATA
>>>>> extent data backref root 257 objectid 1798452 offset 0
>>>>> count 1
>>>>> item 30 key (7777138262016 EXTENT_ITEM 2375680) itemoff 14523
>>>>> itemsize 53
>>>>> extent refs 1 gen 93647 flags DATA
>>>>> extent data backref root 257 objectid 1798455 offset 0
>>>>> count 1
>>>>> item 31 key (7777140637696 EXTENT_ITEM 2490368) itemoff 14470
>>>>> itemsize 53
>>>>> extent refs 1 gen 93647 flags DATA
>>>>> extent data backref root 257 objectid 1798458 offset 0
>>>>> count 1
>>>>> item 32 key (7777143128064 EXTENT_ITEM 2666496) itemoff 14417
>>>>> itemsize 53
>>>>> extent refs 1 gen 93647 flags DATA
>>>>> extent data backref root 257 objectid 1798461 offset 0
>>>>> count 1
>>>>> item 33 key (7777145794560 EXTENT_ITEM 348160) itemoff 14364
>>>>> itemsize 53
>>>>> extent refs 1 gen 148361 flags DATA
>>>>> extent data backref root 258 objectid 800697 offset
>>>>> 221151232 count 1
>>>>> item 34 key (7777146142720 EXTENT_ITEM 913408) itemoff 14311
>>>>> itemsize 53
>>>>> extent refs 1 gen 152889 flags DATA
>>>>> extent data backref root 258 objectid 2111468 offset 0
>>>>> count 1
>>>>> item 35 key (7777147056128 EXTENT_ITEM 32768) itemoff 14258
>>>>> itemsize 53
>>>>> extent refs 1 gen 185891 flags DATA
>>>>> extent data backref root 7565 objectid 135085 offset 0
>>>>> count 1
>>>>> item 36 key (7777147088896 EXTENT_ITEM 12288) itemoff 14205
>>>>> itemsize 53
>>>>> extent refs 1 gen 185891 flags DATA
>>>>> extent data backref root 7565 objectid 135105 offset 0
>>>>> count 1
>>>>> item 37 key (7777147105280 EXTENT_ITEM 10260480) itemoff 14152
>>>>> itemsize 53
>>>>> extent refs 3 gen 128803 flags DATA
>>>>> extent data backref root 258 objectid 1746598 offset 0
>>>>> count 3
>>>>> item 38 key (7777157365760 EXTENT_ITEM 4096) itemoff 14099
>>>>> itemsize 53
>>>>> extent refs 1 gen 257306 flags DATA
>>>>> extent data backref root 258 objectid 839874 offset
>>>>> 1716224 count 1
>>>>> item 39 key (7777157369856 EXTENT_ITEM 262144) itemoff 14046
>>>>> itemsize 53
>>>>> extent refs 1 gen 239739 flags DATA
>>>>> extent data backref root 1 objectid 4315 offset 0
>>>>> count 1
>>>>> item 40 key (7777157632000 EXTENT_ITEM 4096) itemoff 13993
>>>>> itemsize 53
>>>>> extent refs 1 gen 257306 flags DATA
>>>>> extent data backref root 258 objectid 839874 offset
>>>>> 1724416 count 1
>>>>> item 41 key (7777157636096 EXTENT_ITEM 28672) itemoff 13940
>>>>> itemsize 53
>>>>> extent refs 1 gen 239755 flags DATA
>>>>> extent data backref root 7565 objectid 218350 offset 0
>>>>> count 1
>>>>> item 42 key (7777157672960 EXTENT_ITEM 262144) itemoff 13887
>>>>> itemsize 53
>>>>> extent refs 1 gen 251770 flags DATA
>>>>> extent data backref root 1 objectid 7446 offset 0
>>>>> count 1
>>>>> item 43 key (7777157947392 EXTENT_ITEM 12288) itemoff 13834
>>>>> itemsize 53
>>>>> extent refs 1 gen 257266 flags DATA
>>>>> extent data backref root 258 objectid 839874 offset
>>>>> 1716224 count 1
>>>>> item 44 key (7777157963776 EXTENT_ITEM 204800) itemoff 13781
>>>>> itemsize 53
>>>>> extent refs 1 gen 239712 flags DATA
>>>>> extent data backref root 7565 objectid 151704 offset 0
>>>>> count 1
>>>>> item 45 key (7777158168576 EXTENT_ITEM 8192) itemoff 13728
>>>>> itemsize 53
>>>>> extent refs 1 gen 239755 flags DATA
>>>>> extent data backref root 7565 objectid 218364 offset 0
>>>>> count 1
>>>>> item 46 key (7777158176768 EXTENT_ITEM 8192) itemoff 13675
>>>>> itemsize 53
>>>>> extent refs 1 gen 239734 flags DATA
>>>>> extent data backref root 7565 objectid 158076 offset 0
>>>>> count 1
>>>>> item 47 key (7777158184960 EXTENT_ITEM 24576) itemoff 13622
>>>>> itemsize 53
>>>>> extent refs 1 gen 239734 flags DATA
>>>>> extent data backref root 7565 objectid 158077 offset 0
>>>>> count 1
>>>>> item 48 key (7777158209536 EXTENT_ITEM 262144) itemoff 13569
>>>>> itemsize 53
>>>>> extent refs 1 gen 250487 flags DATA
>>>>> extent data backref root 1 objectid 7042 offset 0
>>>>> count 1
>>>>> item 49 key (7777159520256 EXTENT_ITEM 868352) itemoff 13516
>>>>> itemsize 53
>>>>> extent refs 1 gen 218523 flags DATA
>>>>> extent data backref root 258 objectid 3429613 offset 0
>>>>> count 1
>>>>> item 50 key (7777159340032 EXTENT_ITEM 262144) itemoff 13463
>>>>> itemsize 53
>>>>> extent refs 1 gen 252003 flags DATA
>>>>> extent data backref root 1 objectid 6709 offset 0
>>>>> count 1
>>>>> item 51 key (7777159602176 EXTENT_ITEM 8192) itemoff 13410
>>>>> itemsize 53
>>>>> extent refs 1 gen 239734 flags DATA
>>>>> extent data backref root 7565 objectid 158078 offset 0
>>>>> count 1
>>>>> item 52 key (7777159610368 EXTENT_ITEM 8192) itemoff 13357
>>>>> itemsize 53
>>>>> extent refs 1 gen 239734 flags DATA
>>>>> extent data backref root 7565 objectid 158082 offset 0
>>>>> count 1
>>>>> item 53 key (7777159618560 EXTENT_ITEM 20480) itemoff 13304
>>>>> itemsize 53
>>>>> extent refs 1 gen 253796 flags DATA
>>>>> extent data backref root 258 objectid 839874 offset
>>>>> 1708032 count 1
>>>>> item 54 key (7777159770112 EXTENT_ITEM 53248) itemoff 13251
>>>>> itemsize 53
>>>>> extent refs 1 gen 239735 flags DATA
>>>>> extent data backref root 7565 objectid 180984 offset 0
>>>>> count 1
>>>>> item 55 key (7777159823360 EXTENT_ITEM 28672) itemoff 13198
>>>>> itemsize 53
>>>>> extent refs 1 gen 239735 flags DATA
>>>>> extent data backref root 7565 objectid 181027 offset 0
>>>>> count 1
>>>>> item 56 key (7777159852032 EXTENT_ITEM 20480) itemoff 13145
>>>>> itemsize 53
>>>>> extent refs 1 gen 239735 flags DATA
>>>>> extent data backref root 7565 objectid 181029 offset 0
>>>>> count 1
>>>>> item 57 key (7777159872512 EXTENT_ITEM 8192) itemoff 13092
>>>>> itemsize 53
>>>>> extent refs 1 gen 239736 flags DATA
>>>>> extent data backref root 7565 objectid 181418 offset 0
>>>>> count 1
>>>>> item 58 key (7777159880704 EXTENT_ITEM 12288) itemoff 13039
>>>>> itemsize 53
>>>>> extent refs 1 gen 239734 flags DATA
>>>>> extent data backref root 7565 objectid 158079 offset 0
>>>>> count 1
>>>>> item 59 key (7777159892992 EXTENT_ITEM 131072) itemoff 12986
>>>>> itemsize 53
>>>>> extent refs 1 gen 152898 flags DATA
>>>>> extent data backref root 258 objectid 2111468 offset
>>>>> 913408 count 1
>>>>> item 60 key (7777160024064 EXTENT_ITEM 8192) itemoff 12933
>>>>> itemsize 53
>>>>> extent refs 1 gen 239734 flags DATA
>>>>> extent data backref root 7565 objectid 158085 offset 0
>>>>> count 1
>>>>> item 61 key (7777160040448 EXTENT_ITEM 12288) itemoff 12880
>>>>> itemsize 53
>>>>> extent refs 1 gen 239734 flags DATA
>>>>> extent data backref root 7565 objectid 158081 offset 0
>>>>> count 1
>>>>> item 62 key (7777160052736 EXTENT_ITEM 16384) itemoff 12827
>>>>> itemsize 53
>>>>> extent refs 1 gen 239734 flags DATA
>>>>> extent data backref root 7565 objectid 158083 offset 0
>>>>> count 1
>>>>> item 63 key (7777160069120 EXTENT_ITEM 12288) itemoff 12774
>>>>> itemsize 53
>>>>> extent refs 1 gen 239734 flags DATA
>>>>> extent data backref root 7565 objectid 158084 offset 0
>>>>> count 1
>>>>> item 64 key (7777160081408 EXTENT_ITEM 8192) itemoff 12721
>>>>> itemsize 53
>>>>> extent refs 1 gen 239734 flags DATA
>>>>> extent data backref root 7565 objectid 158086 offset 0
>>>>> count 1
>>>>> item 65 key (7777160093696 EXTENT_ITEM 4096) itemoff 12668
>>>>> itemsize 53
>>>>> extent refs 1 gen 191200 flags DATA
>>>>> extent data backref root 258 objectid 839874 offset
>>>>> 1728512 count 1
>>>>> item 66 key (7777160097792 EXTENT_ITEM 8192) itemoff 12615
>>>>> itemsize 53
>>>>> extent refs 1 gen 239734 flags DATA
>>>>> extent data backref root 7565 objectid 158088 offset 0
>>>>> count 1
>>>>> item 67 key (7777160105984 EXTENT_ITEM 24576) itemoff 12562
>>>>> itemsize 53
>>>>> extent refs 1 gen 239734 flags DATA
>>>>> extent data backref root 7565 objectid 158090 offset 0
>>>>> count 1
>>>>> item 68 key (7777160130560 EXTENT_ITEM 16384) itemoff 12509
>>>>> itemsize 53
>>>>> extent refs 1 gen 239734 flags DATA
>>>>> extent data backref root 7565 objectid 158092 offset 0
>>>>> count 1
>>>>> item 69 key (7777160146944 EXTENT_ITEM 8192) itemoff 12456
>>>>> itemsize 53
>>>>> extent refs 1 gen 239734 flags DATA
>>>>> extent data backref root 7565 objectid 158093 offset 0
>>>>> count 1
>>>>> item 70 key (7777160155136 EXTENT_ITEM 8192) itemoff 12403
>>>>> itemsize 53
>>>>> extent refs 1 gen 239734 flags DATA
>>>>> extent data backref root 7565 objectid 158095 offset 0
>>>>> count 1
>>>>> item 71 key (7777160163328 EXTENT_ITEM 8192) itemoff 12350
>>>>> itemsize 53
>>>>> extent refs 1 gen 239734 flags DATA
>>>>> extent data backref root 7565 objectid 158099 offset 0
>>>>> count 1
>>>>> item 72 key (7777160171520 EXTENT_ITEM 8192) itemoff 12297
>>>>> itemsize 53
>>>>> extent refs 1 gen 239734 flags DATA
>>>>> extent data backref root 7565 objectid 158101 offset 0
>>>>> count 1
>>>>> item 73 key (7777160179712 EXTENT_ITEM 32768) itemoff 12244
>>>>> itemsize 53
>>>>> extent refs 1 gen 185891 flags DATA
>>>>> extent data backref root 7565 objectid 135098 offset 0
>>>>> count 1
>>>>> item 74 key (7777160212480 EXTENT_ITEM 9064448) itemoff 12191
>>>>> itemsize 53
>>>>> extent refs 3 gen 128804 flags DATA
>>>>> extent data backref root 258 objectid 1746670 offset 0
>>>>> count 3
>>>>> item 75 key (7777169276928 EXTENT_ITEM 5619712) itemoff 12138
>>>>> itemsize 53
>>>>> extent refs 4 gen 128815 flags DATA
>>>>> extent data backref root 258 objectid 1747043 offset 0
>>>>> count 4
>>>>> item 76 key (7777174896640 EXTENT_ITEM 49152) itemoff 12085
>>>>> itemsize 53
>>>>> extent refs 1 gen 185891 flags DATA
>>>>> extent data backref root 7565 objectid 135087 offset 0
>>>>> count 1
>>>>> item 77 key (7777174945792 EXTENT_ITEM 268435456) itemoff
>>>>> 12019 itemsize 66
>>>>> extent refs 4 gen 86553 flags DATA
>>>>> extent data backref root 258 objectid 1257818 offset 0
>>>>> count 2
>>>>> shared data backref parent 3804574728192 count 2
>>>>> item 78 key (7777174945792 BLOCK_GROUP_ITEM 1073741824)
>>>>> itemoff 11995 itemsize 24
>>>>> block group used 1073135616 chunk_objectid 256 flags
>>>>> DATA|RAID1
>>>>> item 79 key (7777443381248 EXTENT_ITEM 211255296) itemoff
>>>>> 11929 itemsize 66
>>>>> extent refs 2 gen 86553 flags DATA
>>>>> extent data backref root 258 objectid 1257818 offset
>>>>> 268435456 count 1
>>>>> shared data backref parent 3804574728192 count 1
>>>>> item 80 key (7777654636544 EXTENT_ITEM 268435456) itemoff
>>>>> 11863 itemsize 66
>>>>> extent refs 147 gen 86553 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset 0
>>>>> count 101
>>>>> shared data backref parent 3804574728192 count 46
>>>>> item 81 key (7777923072000 EXTENT_ITEM 211009536) itemoff
>>>>> 11797 itemsize 66
>>>>> extent refs 167 gen 86553 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 268435456 count 96
>>>>> shared data backref parent 5253034229760 count 71
>>>>> item 82 key (7778134081536 EXTENT_ITEM 4096) itemoff 11731
>>>>> itemsize 66
>>>>> extent refs 2 gen 86555 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 341114880 count 1
>>>>> shared data backref parent 5253034229760 count 1
>>>>> item 83 key (7778134085632 EXTENT_ITEM 4096) itemoff 11665
>>>>> itemsize 66
>>>>> extent refs 2 gen 86557 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 402767872 count 1
>>>>> shared data backref parent 5253034229760 count 1
>>>>> item 84 key (7778134089728 EXTENT_ITEM 4096) itemoff 11599
>>>>> itemsize 66
>>>>> extent refs 2 gen 86560 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 13631488 count 1
>>>>> shared data backref parent 3804574728192 count 1
>>>>> item 85 key (7778134093824 EXTENT_ITEM 4096) itemoff 11533
>>>>> itemsize 66
>>>>> extent refs 2 gen 86560 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 13975552 count 1
>>>>> shared data backref parent 3804574728192 count 1
>>>>> item 86 key (7778134097920 EXTENT_ITEM 4096) itemoff 11467
>>>>> itemsize 66
>>>>> extent refs 2 gen 86560 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 16236544 count 1
>>>>> shared data backref parent 3804574728192 count 1
>>>>> item 87 key (7778134102016 EXTENT_ITEM 4096) itemoff 11401
>>>>> itemsize 66
>>>>> extent refs 2 gen 86560 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 16351232 count 1
>>>>> shared data backref parent 3804574728192 count 1
>>>>> item 88 key (7778134106112 EXTENT_ITEM 4096) itemoff 11335
>>>>> itemsize 66
>>>>> extent refs 2 gen 86564 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 406962176 count 1
>>>>> shared data backref parent 5253034229760 count 1
>>>>> item 89 key (7778134110208 EXTENT_ITEM 4096) itemoff 11269
>>>>> itemsize 66
>>>>> extent refs 2 gen 86565 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 46923776 count 1
>>>>> shared data backref parent 3804574728192 count 1
>>>>> item 90 key (7778134114304 EXTENT_ITEM 4096) itemoff 11203
>>>>> itemsize 66
>>>>> extent refs 2 gen 86565 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 47644672 count 1
>>>>> shared data backref parent 3804574728192 count 1
>>>>> item 91 key (7778134118400 EXTENT_ITEM 4096) itemoff 11137
>>>>> itemsize 66
>>>>> extent refs 2 gen 86565 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 49020928 count 1
>>>>> shared data backref parent 3804574728192 count 1
>>>>> item 92 key (7778134122496 EXTENT_ITEM 4096) itemoff 11071
>>>>> itemsize 66
>>>>> extent refs 2 gen 86565 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 49037312 count 1
>>>>> shared data backref parent 3804574728192 count 1
>>>>> item 93 key (7778134126592 EXTENT_ITEM 4096) itemoff 11018
>>>>> itemsize 53
>>>>> extent refs 1 gen 86565 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 180797440 count 1
>>>>> item 94 key (7778134130688 EXTENT_ITEM 4096) itemoff 10965
>>>>> itemsize 53
>>>>> extent refs 1 gen 86565 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 182140928 count 1
>>>>> item 95 key (7778134134784 EXTENT_ITEM 4096) itemoff 10912
>>>>> itemsize 53
>>>>> extent refs 1 gen 86565 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 182222848 count 1
>>>>> item 96 key (7778134138880 EXTENT_ITEM 4096) itemoff 10859
>>>>> itemsize 53
>>>>> extent refs 1 gen 86565 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 201441280 count 1
>>>>> item 97 key (7778134142976 EXTENT_ITEM 4096) itemoff 10806
>>>>> itemsize 53
>>>>> extent refs 1 gen 86565 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 205635584 count 1
>>>>> item 98 key (7778134147072 EXTENT_ITEM 4096) itemoff 10753
>>>>> itemsize 53
>>>>> extent refs 1 gen 86565 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 209829888 count 1
>>>>> item 99 key (7778134151168 EXTENT_ITEM 4096) itemoff 10700
>>>>> itemsize 53
>>>>> extent refs 1 gen 86565 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 210206720 count 1
>>>>> item 100 key (7778134155264 EXTENT_ITEM 4096) itemoff 10647
>>>>> itemsize 53
>>>>> extent refs 1 gen 86565 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 212451328 count 1
>>>>> item 101 key (7778134159360 EXTENT_ITEM 4096) itemoff 10594
>>>>> itemsize 53
>>>>> extent refs 1 gen 86565 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 212467712 count 1
>>>>> item 102 key (7778134163456 EXTENT_ITEM 4096) itemoff 10541
>>>>> itemsize 53
>>>>> extent refs 1 gen 86565 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 213712896 count 1
>>>>> item 103 key (7778134167552 EXTENT_ITEM 4096) itemoff 10488
>>>>> itemsize 53
>>>>> extent refs 1 gen 86567 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 176275456 count 1
>>>>> item 104 key (7778134171648 EXTENT_ITEM 4096) itemoff 10435
>>>>> itemsize 53
>>>>> extent refs 1 gen 86567 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 180469760 count 1
>>>>> item 105 key (7778134175744 EXTENT_ITEM 4096) itemoff 10369
>>>>> itemsize 66
>>>>> extent refs 2 gen 86571 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 365379584 count 1
>>>>> shared data backref parent 5253034229760 count 1
>>>>> item 106 key (7778134179840 EXTENT_ITEM 4096) itemoff 10303
>>>>> itemsize 66
>>>>> extent refs 2 gen 86571 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 368951296 count 1
>>>>> shared data backref parent 5253034229760 count 1
>>>>> item 107 key (7778134183936 EXTENT_ITEM 4096) itemoff 10237
>>>>> itemsize 66
>>>>> extent refs 2 gen 86572 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 12697600 count 1
>>>>> shared data backref parent 3804574728192 count 1
>>>>> item 108 key (7778134188032 EXTENT_ITEM 4096) itemoff 10184
>>>>> itemsize 53
>>>>> extent refs 1 gen 86572 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 151109632 count 1
>>>>> item 109 key (7778134192128 EXTENT_ITEM 4096) itemoff 10131
>>>>> itemsize 53
>>>>> extent refs 1 gen 86572 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 255967232 count 1
>>>>> item 110 key (7778134196224 EXTENT_ITEM 4096) itemoff 10078
>>>>> itemsize 53
>>>>> extent refs 1 gen 86574 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 148488192 count 1
>>>>> item 111 key (7778134200320 EXTENT_ITEM 4096) itemoff 10025
>>>>> itemsize 53
>>>>> extent refs 1 gen 86574 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 148635648 count 1
>>>>> item 112 key (7778134204416 EXTENT_ITEM 4096) itemoff 9972
>>>>> itemsize 53
>>>>> extent refs 1 gen 86574 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 149684224 count 1
>>>>> item 113 key (7778134208512 EXTENT_ITEM 4096) itemoff 9919
>>>>> itemsize 53
>>>>> extent refs 1 gen 86574 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 150077440 count 1
>>>>> item 114 key (7778134212608 EXTENT_ITEM 4096) itemoff 9866
>>>>> itemsize 53
>>>>> extent refs 1 gen 86574 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 252444672 count 1
>>>>> item 115 key (7778134216704 EXTENT_ITEM 4096) itemoff 9813
>>>>> itemsize 53
>>>>> extent refs 1 gen 86574 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 252608512 count 1
>>>>> item 116 key (7778134220800 EXTENT_ITEM 4096) itemoff 9760
>>>>> itemsize 53
>>>>> extent refs 1 gen 86574 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 254263296 count 1
>>>>> item 117 key (7778134224896 EXTENT_ITEM 4096) itemoff 9707
>>>>> itemsize 53
>>>>> extent refs 1 gen 86574 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 254541824 count 1
>>>>> item 118 key (7778134228992 EXTENT_ITEM 4096) itemoff 9641
>>>>> itemsize 66
>>>>> extent refs 2 gen 86576 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 411156480 count 1
>>>>> shared data backref parent 5253034229760 count 1
>>>>> item 119 key (7778134233088 EXTENT_ITEM 4096) itemoff 9588
>>>>> itemsize 53
>>>>> extent refs 1 gen 86577 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 297910272 count 1
>>>>> item 120 key (7778134237184 EXTENT_ITEM 4096) itemoff 9522
>>>>> itemsize 66
>>>>> extent refs 2 gen 86577 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>>>>> 411811840 count 1
>>>>> shared data backref parent 5253034229760 count 1
>>>>> item 121 key (7778134241280 EXTENT_ITEM 4096) itemoff 9456
>>>>> itemsize 66
>>>>> extent refs 2 gen 86577 flags DATA
>>>>> extent data backref root 258 objectid 1257819 offset
>
>
>
> --
> Tom Dickson-Hunt
--
Tom Dickson-Hunt
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Recovery of a raid1 FS
2016-01-09 7:18 ` Tom Hunt
@ 2016-01-11 1:50 ` Qu Wenruo
2016-01-22 17:10 ` Tom Hunt
0 siblings, 1 reply; 11+ messages in thread
From: Qu Wenruo @ 2016-01-11 1:50 UTC (permalink / raw)
To: Tom Hunt; +Cc: linux-btrfs
Ok, some extent tree error made extent tree init failed.
Would you please paste the output of "btrfs-show-super -f -a"?
That may be the last hope for fast fix.
If show-super showed nothing useful, then btrfs-chunk-recovery may help,
but it will takes a long long long time to do the work.
Thanks,
Qu
Tom Hunt wrote on 2016/01/09 00:18 -0700:
> Just for fun, I tried btrfs check --repair, but no dice:
>
> [root@archiso ~]# btrfs check --repair /dev/mapper/rootvol_1
> enabling repair mode
> warning, device 2 is missing
> warning devid 2 not found already
> bad key ordering 49 50
> repair mode will force to clear out log tree, Are you sure? [y/N]: y
> Unable to find block group for 0
> extent-tree.c:289: find_search_start: Assertion `1` failed.
> btrfs[0x44161e]
> btrfs(btrfs_reserve_extent+0xa7b)[0x4463db]
> btrfs(btrfs_alloc_free_block+0x5f)[0x44649f]
> btrfs(__btrfs_cow_block+0xc4)[0x437d64]
> btrfs(btrfs_cow_block+0x35)[0x438365]
> btrfs[0x43d3d6]
> btrfs(btrfs_commit_transaction+0x95)[0x43f125]
> btrfs(cmd_check+0x5ec)[0x429cdc]
> btrfs(main+0x82)[0x40ef32]
> /usr/lib/libc.so.6(__libc_start_main+0xf0)[0x7f265ba38610]
> btrfs(_start+0x29)[0x40f039]
>
> Seems to be the same point at which they both fail. I have no idea
> what might be the cause.
>
> On Thu, Jan 7, 2016 at 8:46 PM, Tom Hunt <tomdicksonhunt@gmail.com> wrote:
>>> You can try this method.
>>> But after that, *NEVER* put all the two devices online *TOGETHER*.
>>
>> Tried this, with only one disk of the volume plugged in. Results:
>>
>> [root@archiso ~]# btrfs check --init-extent-tree /dev/mapper/rootvol_1
>> warning, device 2 is missing
>> warning devid 2 not found already
>> repair mode will force to clear out log tree, Are you sure? [y/N]: y
>> Unable to find block group for 0
>> extent-tree.c:289: find_search_start: Assertion `1` failed.
>> btrfs[0x44161e]
>> btrfs(btrfs_reserve_extent+0xa7b)[0x4463db]
>> btrfs(btrfs_alloc_free_block+0x5f)[0x44649f]
>> btrfs(__btrfs_cow_block+0xc4)[0x437d64]
>> btrfs(btrfs_cow_block+0x35)[0x438365]
>> btrfs[0x43d3d6]
>> btrfs(btrfs_commit_transaction+0x95)[0x43f125]
>> btrfs(cmd_check+0x5ec)[0x429cdc]
>> btrfs(main+0x82)[0x40ef32]
>> /usr/lib/libc.so.6(__libc_start_main+0xf0)[0x7fe478ef0610]
>> btrfs(_start+0x29)[0x40f039]
>>
>> On Thu, Jan 7, 2016 at 7:26 PM, Qu Wenruo <quwenruo@cn.fujitsu.com> wrote:
>>>
>>>
>>> Tom Hunt wrote on 2016/01/07 19:02 -0700:
>>>>>
>>>>> Does the sudden end means a segfault?
>>>>
>>>>
>>>> The sudden end means an end. The program terminated without any
>>>> further output or error indication.
>>>>
>>>>> And what's the output of btrfs-debug-tree /dev/mapper/rootvol_1 -b
>>>>> 6210223521792?
>>>>
>>>>
>>>> [root@archiso ~]# btrfs-debug-tree /dev/mapper/rootvol_1 -b 6210223521792
>>>> bad key ordering 49 50
>>>> leaf 6210223521792 items 123 free space 55 generation 257371 owner 1
>>>> fs uuid 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>>> chunk uuid 6abf465c-c677-4879-a4ca-d632e43e01e4
>>>> item 0 key (7302 INODE_ITEM 0) itemoff 16123 itemsize 160
>>>> inode generation 37573 transid 37573 size 262144 nbytes
>>>> 1048576
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 1 key (7302 EXTENT_DATA 0) itemoff 16070 itemsize 53
>>>> extent data disk byte 7564439363584 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 2 key (7303 INODE_ITEM 0) itemoff 15910 itemsize 160
>>>> inode generation 37573 transid 37573 size 262144 nbytes
>>>> 786432
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 3 key (7303 EXTENT_DATA 0) itemoff 15857 itemsize 53
>>>> extent data disk byte 7564439662592 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 4 key (7304 INODE_ITEM 0) itemoff 15697 itemsize 160
>>>> inode generation 36550 transid 36550 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 5 key (7304 EXTENT_DATA 0) itemoff 15644 itemsize 53
>>>> extent data disk byte 7517322158080 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 6 key (7305 INODE_ITEM 0) itemoff 15484 itemsize 160
>>>> inode generation 37573 transid 37573 size 262144 nbytes
>>>> 524288
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 7 key (7305 EXTENT_DATA 0) itemoff 15431 itemsize 53
>>>> extent data disk byte 7564439941120 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 8 key (7306 INODE_ITEM 0) itemoff 15271 itemsize 160
>>>> inode generation 37573 transid 37573 size 262144 nbytes
>>>> 786432
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 9 key (7306 EXTENT_DATA 0) itemoff 15218 itemsize 53
>>>> extent data disk byte 7564440219648 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 10 key (7307 INODE_ITEM 0) itemoff 15058 itemsize 160
>>>> inode generation 37576 transid 37576 size 262144 nbytes
>>>> 1310720
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 11 key (7307 EXTENT_DATA 0) itemoff 15005 itemsize 53
>>>> extent data disk byte 7564425949184 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 12 key (7308 INODE_ITEM 0) itemoff 14845 itemsize 160
>>>> inode generation 36586 transid 36586 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 13 key (7308 EXTENT_DATA 0) itemoff 14792 itemsize 53
>>>> extent data disk byte 7355300618240 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 14 key (7309 INODE_ITEM 0) itemoff 14632 itemsize 160
>>>> inode generation 257365 transid 257365 size 262144
>>>> nbytes 11781537792
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 15 key (7309 EXTENT_DATA 0) itemoff 14579 itemsize 53
>>>> extent data disk byte 7770707218432 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 16 key (7310 INODE_ITEM 0) itemoff 14419 itemsize 160
>>>> inode generation 37590 transid 37590 size 262144 nbytes
>>>> 786432
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 17 key (7310 EXTENT_DATA 0) itemoff 14366 itemsize 53
>>>> extent data disk byte 7569787527168 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 18 key (7311 INODE_ITEM 0) itemoff 14206 itemsize 160
>>>> inode generation 37591 transid 37591 size 262144 nbytes
>>>> 1048576
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 19 key (7311 EXTENT_DATA 0) itemoff 14153 itemsize 53
>>>> extent data disk byte 7569797865472 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 20 key (7312 INODE_ITEM 0) itemoff 13993 itemsize 160
>>>> inode generation 36625 transid 36625 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 21 key (7312 EXTENT_DATA 0) itemoff 13940 itemsize 53
>>>> extent data disk byte 7517400543232 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 22 key (7313 INODE_ITEM 0) itemoff 13780 itemsize 160
>>>> inode generation 36634 transid 36634 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 23 key (7313 EXTENT_DATA 0) itemoff 13727 itemsize 53
>>>> extent data disk byte 7531318194176 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 24 key (7314 INODE_ITEM 0) itemoff 13567 itemsize 160
>>>> inode generation 239734 transid 239734 size 262144
>>>> nbytes 2359558144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 25 key (7314 EXTENT_DATA 0) itemoff 13514 itemsize 53
>>>> extent data disk byte 8005861564416 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 26 key (7315 INODE_ITEM 0) itemoff 13354 itemsize 160
>>>> inode generation 36652 transid 36652 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 27 key (7315 EXTENT_DATA 0) itemoff 13301 itemsize 53
>>>> extent data disk byte 4990757240832 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 28 key (7316 INODE_ITEM 0) itemoff 13141 itemsize 160
>>>> inode generation 36661 transid 36661 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 29 key (7316 EXTENT_DATA 0) itemoff 13088 itemsize 53
>>>> extent data disk byte 7066322538496 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 30 key (7317 INODE_ITEM 0) itemoff 12928 itemsize 160
>>>> inode generation 36672 transid 36672 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 31 key (7317 EXTENT_DATA 0) itemoff 12875 itemsize 53
>>>> extent data disk byte 7278922661888 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 32 key (7318 INODE_ITEM 0) itemoff 12715 itemsize 160
>>>> inode generation 36682 transid 36682 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 33 key (7318 EXTENT_DATA 0) itemoff 12662 itemsize 53
>>>> extent data disk byte 7313284538368 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 34 key (7319 INODE_ITEM 0) itemoff 12502 itemsize 160
>>>> inode generation 36692 transid 36692 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 35 key (7319 EXTENT_DATA 0) itemoff 12449 itemsize 53
>>>> extent data disk byte 7184434880512 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 36 key (7320 INODE_ITEM 0) itemoff 12289 itemsize 160
>>>> inode generation 36702 transid 36702 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 37 key (7320 EXTENT_DATA 0) itemoff 12236 itemsize 53
>>>> extent data disk byte 7518426820608 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 38 key (7321 INODE_ITEM 0) itemoff 12076 itemsize 160
>>>> inode generation 36711 transid 36711 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 39 key (7321 EXTENT_DATA 0) itemoff 12023 itemsize 53
>>>> extent data disk byte 7372338782208 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 40 key (7322 INODE_ITEM 0) itemoff 11863 itemsize 160
>>>> inode generation 36720 transid 36720 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 41 key (7322 EXTENT_DATA 0) itemoff 11810 itemsize 53
>>>> extent data disk byte 7526872854528 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 42 key (7323 INODE_ITEM 0) itemoff 11650 itemsize 160
>>>> inode generation 36729 transid 36729 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 43 key (7323 EXTENT_DATA 0) itemoff 11597 itemsize 53
>>>> extent data disk byte 4990756978688 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 44 key (7324 INODE_ITEM 0) itemoff 11437 itemsize 160
>>>> inode generation 36739 transid 36739 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 45 key (7324 EXTENT_DATA 0) itemoff 11384 itemsize 53
>>>> extent data disk byte 7520553996288 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 46 key (7325 INODE_ITEM 0) itemoff 11224 itemsize 160
>>>> inode generation 36749 transid 36749 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 47 key (7325 EXTENT_DATA 0) itemoff 11171 itemsize 53
>>>> extent data disk byte 7531508781056 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 48 key (7326 INODE_ITEM 0) itemoff 11011 itemsize 160
>>>> inode generation 251050 transid 251050 size 262144
>>>> nbytes 8435793920
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 49 key (7326 EXTENT_DATA 0) itemoff 10958 itemsize 53
>>>> extent data disk byte 7747063099392 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 50 key (7327 INODE_ITEM 0) itemoff 10798 itemsize 160
>>>> inode generation 36767 transid 36767 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 51 key (7327 EXTENT_DATA 0) itemoff 10745 itemsize 53
>>>> extent data disk byte 7517323468800 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 52 key (7328 INODE_ITEM 0) itemoff 10585 itemsize 160
>>>> inode generation 36777 transid 36777 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 53 key (7328 EXTENT_DATA 0) itemoff 10532 itemsize 53
>>>> extent data disk byte 7529166970880 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 54 key (7329 INODE_ITEM 0) itemoff 10372 itemsize 160
>>>> inode generation 40097 transid 40097 size 262144 nbytes
>>>> 82313216
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 55 key (7329 EXTENT_DATA 0) itemoff 10319 itemsize 53
>>>> extent data disk byte 7370190655488 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 56 key (3234 INODE_ITEM 0) itemoff 10159 itemsize 160
>>>> inode generation 36795 transid 36795 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 57 key (7346 EXTENT_DATA 0) itemoff 10106 itemsize 53
>>>> extent data disk byte 7521490550784 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>
>>> Item 56 and 57 are corrupted.
>>> Their inode number should be 7330, but they are not.
>>>
>>> If the output is valid, especially for the owner, then it means your free
>>> space cache is damaged, but that's a very small problem though.
>>>
>>>> item 58 key (7331 INODE_ITEM 0) itemoff 9946 itemsize 160
>>>> inode generation 36804 transid 36804 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 59 key (7331 EXTENT_DATA 0) itemoff 9893 itemsize 53
>>>> extent data disk byte 7526874955776 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 60 key (7332 INODE_ITEM 0) itemoff 9733 itemsize 160
>>>> inode generation 257363 transid 257363 size 262144
>>>> nbytes 13501202432
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 61 key (7332 EXTENT_DATA 0) itemoff 9680 itemsize 53
>>>> extent data disk byte 7747053572096 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 62 key (7333 INODE_ITEM 0) itemoff 9520 itemsize 160
>>>> inode generation 257371 transid 257371 size 262144
>>>> nbytes 16589520896
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 63 key (7333 EXTENT_DATA 0) itemoff 9467 itemsize 53
>>>> extent data disk byte 7775023665152 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 64 key (7334 INODE_ITEM 0) itemoff 9307 itemsize 160
>>>> inode generation 239755 transid 239755 size 262144
>>>> nbytes 13442482176
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 65 key (7334 EXTENT_DATA 0) itemoff 9254 itemsize 53
>>>> extent data disk byte 7896225873920 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 66 key (7335 INODE_ITEM 0) itemoff 9094 itemsize 160
>>>> inode generation 239755 transid 239755 size 262144
>>>> nbytes 1324613632
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 67 key (7335 EXTENT_DATA 0) itemoff 9041 itemsize 53
>>>> extent data disk byte 7896226185216 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 68 key (7336 INODE_ITEM 0) itemoff 8881 itemsize 160
>>>> inode generation 240953 transid 240953 size 262144
>>>> nbytes 3632529408
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 69 key (7336 EXTENT_DATA 0) itemoff 8828 itemsize 53
>>>> extent data disk byte 5919597350912 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 70 key (7337 INODE_ITEM 0) itemoff 8668 itemsize 160
>>>> inode generation 243010 transid 243010 size 262144
>>>> nbytes 2379481088
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 71 key (7337 EXTENT_DATA 0) itemoff 8615 itemsize 53
>>>> extent data disk byte 5918852136960 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 72 key (7338 INODE_ITEM 0) itemoff 8455 itemsize 160
>>>> inode generation 79477 transid 79477 size 262144 nbytes
>>>> 24117248
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 73 key (7338 EXTENT_DATA 0) itemoff 8402 itemsize 53
>>>> extent data disk byte 7715922624512 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 74 key (7339 INODE_ITEM 0) itemoff 8242 itemsize 160
>>>> inode generation 81958 transid 81958 size 262144 nbytes
>>>> 78381056
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 75 key (7339 EXTENT_DATA 0) itemoff 8189 itemsize 53
>>>> extent data disk byte 7721189564416 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 76 key (7340 INODE_ITEM 0) itemoff 8029 itemsize 160
>>>> inode generation 83591 transid 83591 size 262144
>>>> nbytes 165150720
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 77 key (7340 EXTENT_DATA 0) itemoff 7976 itemsize 53
>>>> extent data disk byte 7744960389120 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 78 key (7341 INODE_ITEM 0) itemoff 7816 itemsize 160
>>>> inode generation 47076 transid 47076 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 79 key (7341 EXTENT_DATA 0) itemoff 7763 itemsize 53
>>>> extent data disk byte 7518415810560 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 80 key (7342 INODE_ITEM 0) itemoff 7603 itemsize 160
>>>> inode generation 47085 transid 47085 size 262144 nbytes
>>>> 1048576
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 81 key (7342 EXTENT_DATA 0) itemoff 7550 itemsize 53
>>>> extent data disk byte 7532088664064 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 82 key (7343 INODE_ITEM 0) itemoff 7390 itemsize 160
>>>> inode generation 47077 transid 47077 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 83 key (7343 EXTENT_DATA 0) itemoff 7337 itemsize 53
>>>> extent data disk byte 7517316259840 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 84 key (7344 INODE_ITEM 0) itemoff 7177 itemsize 160
>>>> inode generation 47196 transid 47196 size 262144 nbytes
>>>> 22282240
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 85 key (7344 EXTENT_DATA 0) itemoff 7124 itemsize 53
>>>> extent data disk byte 6878509641728 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 86 key (7345 INODE_ITEM 0) itemoff 6964 itemsize 160
>>>> inode generation 47078 transid 47078 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 87 key (7345 EXTENT_DATA 0) itemoff 6911 itemsize 53
>>>> extent data disk byte 7517369085952 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 88 key (7346 INODE_ITEM 0) itemoff 6751 itemsize 160
>>>> inode generation 47235 transid 47235 size 262144 nbytes
>>>> 23592960
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 89 key (7346 EXTENT_DATA 0) itemoff 6698 itemsize 53
>>>> extent data disk byte 6878511214592 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 90 key (7347 INODE_ITEM 0) itemoff 6538 itemsize 160
>>>> inode generation 47078 transid 47078 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 91 key (7347 EXTENT_DATA 0) itemoff 6485 itemsize 53
>>>> extent data disk byte 7520553472000 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 92 key (7348 INODE_ITEM 0) itemoff 6325 itemsize 160
>>>> inode generation 47228 transid 47228 size 262144 nbytes
>>>> 22020096
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 93 key (7348 EXTENT_DATA 0) itemoff 6272 itemsize 53
>>>> extent data disk byte 6878522159104 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 94 key (7349 INODE_ITEM 0) itemoff 6112 itemsize 160
>>>> inode generation 47078 transid 47078 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 95 key (7349 EXTENT_DATA 0) itemoff 6059 itemsize 53
>>>> extent data disk byte 7531921424384 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 96 key (7350 INODE_ITEM 0) itemoff 5899 itemsize 160
>>>> inode generation 47181 transid 47181 size 262144 nbytes
>>>> 13631488
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 97 key (7350 EXTENT_DATA 0) itemoff 5846 itemsize 53
>>>> extent data disk byte 6878515281920 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 98 key (7351 INODE_ITEM 0) itemoff 5686 itemsize 160
>>>> inode generation 47078 transid 47078 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 99 key (7351 EXTENT_DATA 0) itemoff 5633 itemsize 53
>>>> extent data disk byte 7538744426496 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 100 key (7352 INODE_ITEM 0) itemoff 5473 itemsize 160
>>>> inode generation 47183 transid 47183 size 262144 nbytes
>>>> 11796480
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 101 key (7352 EXTENT_DATA 0) itemoff 5420 itemsize 53
>>>> extent data disk byte 6878518218752 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 102 key (7353 INODE_ITEM 0) itemoff 5260 itemsize 160
>>>> inode generation 47078 transid 47078 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 103 key (7353 EXTENT_DATA 0) itemoff 5207 itemsize 53
>>>> extent data disk byte 7540909154304 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 104 key (7354 INODE_ITEM 0) itemoff 5047 itemsize 160
>>>> inode generation 47196 transid 47196 size 262144 nbytes
>>>> 15466496
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 105 key (7354 EXTENT_DATA 0) itemoff 4994 itemsize 53
>>>> extent data disk byte 6878513303552 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 106 key (7355 INODE_ITEM 0) itemoff 4834 itemsize 160
>>>> inode generation 47078 transid 47078 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 107 key (7355 EXTENT_DATA 0) itemoff 4781 itemsize 53
>>>> extent data disk byte 7564487045120 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 108 key (7356 INODE_ITEM 0) itemoff 4621 itemsize 160
>>>> inode generation 47210 transid 47210 size 262144 nbytes
>>>> 19660800
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 109 key (7356 EXTENT_DATA 0) itemoff 4568 itemsize 53
>>>> extent data disk byte 6878541139968 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 110 key (7357 INODE_ITEM 0) itemoff 4408 itemsize 160
>>>> inode generation 47079 transid 47079 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 111 key (7357 EXTENT_DATA 0) itemoff 4355 itemsize 53
>>>> extent data disk byte 7538756612096 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 112 key (7358 INODE_ITEM 0) itemoff 4195 itemsize 160
>>>> inode generation 47079 transid 47079 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 113 key (7358 EXTENT_DATA 0) itemoff 4142 itemsize 53
>>>> extent data disk byte 7582721437696 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 114 key (7359 INODE_ITEM 0) itemoff 3982 itemsize 160
>>>> inode generation 82232 transid 82232 size 262144 nbytes
>>>> 44564480
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 115 key (7359 EXTENT_DATA 0) itemoff 3929 itemsize 53
>>>> extent data disk byte 7724558057472 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 116 key (7360 INODE_ITEM 0) itemoff 3769 itemsize 160
>>>> inode generation 47080 transid 47080 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 117 key (7360 EXTENT_DATA 0) itemoff 3716 itemsize 53
>>>> extent data disk byte 4658994225152 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 118 key (7361 INODE_ITEM 0) itemoff 3556 itemsize 160
>>>> inode generation 47080 transid 47080 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 119 key (7361 EXTENT_DATA 0) itemoff 3503 itemsize 53
>>>> extent data disk byte 6905566703616 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 120 key (7362 INODE_ITEM 0) itemoff 3343 itemsize 160
>>>> inode generation 79539 transid 79539 size 262144 nbytes
>>>> 38535168
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>> item 121 key (7362 EXTENT_DATA 0) itemoff 3290 itemsize 53
>>>> extent data disk byte 7720056217600 nr 262144
>>>> extent data offset 0 nr 262144 ram 262144
>>>> extent compression 0
>>>> item 122 key (7363 INODE_ITEM 0) itemoff 3130 itemsize 160
>>>> inode generation 47080 transid 47080 size 262144 nbytes
>>>> 262144
>>>> block group 0 mode 100600 links 1 uid 0 gid 0
>>>> rdev 0 flags 0x1b
>>>>
>>>>> If btrfs-debug-tree can still output things like below, and the leaf's
>>>>> owner is still 2, I'd recommend to run btrfsck --init-extent-tree, which
>>>>> should has a good chance to fix it.
>>>>
>>>>
>>>>> Although even in that case, I'm not 100% sure if it will work, or do more
>>>>> damage...
>>>>
>>>>
>>>> Would it be a sensible precaution to unplug one disk and attempt
>>>> recovery on a single one? If I understand correctly, all the data
>>>> should be available on either. This disk is quite significant to me,
>>>> and the other option is restoring from a week-old backup; annoying, if
>>>> not fatal.
>>>
>>>
>>> You can try this method.
>>> But after that, *NEVER* put all the two devices online *TOGETHER*.
>>>
>>> Thanks,
>>> Qu
>>>>
>>>>
>>>> For the record, I've also already bought new disks and will be
>>>> operating with those going forward, so a transfer of data will be
>>>> necessary in any case. (There was the possibility of hardware damage
>>>> from a flood a little while ago, and even if this is unrelated, I'm
>>>> paranoid about this volume.)
>>>>
>>>> On Thu, Jan 7, 2016 at 6:48 PM, Qu Wenruo <quwenruo@cn.fujitsu.com> wrote:
>>>>>
>>>>>
>>>>>
>>>>> Tom Hunt wrote on 2016/01/07 18:43 -0700:
>>>>>>
>>>>>>
>>>>>> I had done this already, but somehow forgot to include it. (Internet
>>>>>> suggests 'btrfs check' is synonym for 'btrfsck'; if this is not the
>>>>>> case, please advise.)
>>>>>>
>>>>>> [root@archiso ~]# btrfs check /dev/mapper/rootvol_1
>>>>>> bad key ordering 49 50
>>>>>> Checking filesystem on /dev/mapper/rootvol_1
>>>>>> UUID: 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>>>>> checking extents
>>>>>> bad key ordering 55 56
>>>>>> bad block 6210223521792
>>>>>> Errors found in extent allocation tree or chunk allocation
>>>>>> bad key ordering 55 56
>>>>>
>>>>>
>>>>>
>>>>> Does the sudden end means a segfault?
>>>>>
>>>>>>
>>>>>> And the other:
>>>>>>
>>>>>> [root@archiso ~]# btrfs-debug-tree /dev/mapper/rootvol_1 -b
>>>>>> 6210228551680
>>>>>> bad key ordering 49 50
>>>>>> leaf 6210228551680 items 195 free space 244 generation 257371 owner 2
>>>>>
>>>>>
>>>>>
>>>>> That's extent tree, not a big problem as the whole extent tree can be
>>>>> easily
>>>>> rebuilt.
>>>>>
>>>>> And what's the output of btrfs-debug-tree /dev/mapper/rootvol_1 -b
>>>>> 6210223521792?
>>>>>
>>>>> If btrfs-debug-tree can still output things like below, and the leaf's
>>>>> owner
>>>>> is still 2, I'd recommend to run btrfsck --init-extent-tree, which should
>>>>> has a good chance to fix it.
>>>>>
>>>>> Although even in that case, I'm not 100% sure if it will work, or do more
>>>>> damage...
>>>>>
>>>>> Thanks,
>>>>> Qu
>>>>>
>>>>>
>>>>>> fs uuid 91f7e058-1142-4036-b1f7-4f64163dc8ae
>>>>>> chunk uuid 6abf465c-c677-4879-a4ca-d632e43e01e4
>>>>>> item 0 key (7777093095424 EXTENT_ITEM 4096) itemoff 16217
>>>>>> itemsize 66
>>>>>> extent refs 2 gen 96498 flags DATA
>>>>>> extent data backref root 258 objectid 1319842 offset
>>>>>> 16289792 count 1
>>>>>> shared data backref parent 7588669325312 count 1
>>>>>> item 1 key (7777093099520 EXTENT_ITEM 4096) itemoff 16151
>>>>>> itemsize 66
>>>>>> extent refs 2 gen 96498 flags DATA
>>>>>> extent data backref root 258 objectid 1319842 offset
>>>>>> 20484096 count 1
>>>>>> shared data backref parent 7588669325312 count 1
>>>>>> item 2 key (7777093103616 EXTENT_ITEM 4096) itemoff 16085
>>>>>> itemsize 66
>>>>>> extent refs 2 gen 96498 flags DATA
>>>>>> extent data backref root 258 objectid 1319842 offset
>>>>>> 22581248 count 1
>>>>>> shared data backref parent 7588669325312 count 1
>>>>>> item 3 key (7777093107712 EXTENT_ITEM 4096) itemoff 16019
>>>>>> itemsize 66
>>>>>> extent refs 2 gen 96501 flags DATA
>>>>>> extent data backref root 258 objectid 1319842 offset
>>>>>> 56135680 count 1
>>>>>> shared data backref parent 7343916351488 count 1
>>>>>> item 4 key (7777093111808 EXTENT_ITEM 4096) itemoff 15953
>>>>>> itemsize 66
>>>>>> extent refs 2 gen 96501 flags DATA
>>>>>> extent data backref root 258 objectid 1319842 offset
>>>>>> 58232832 count 1
>>>>>> shared data backref parent 7343916351488 count 1
>>>>>> item 5 key (7777093115904 EXTENT_ITEM 4096) itemoff 15887
>>>>>> itemsize 66
>>>>>> extent refs 2 gen 96511 flags DATA
>>>>>> extent data backref root 258 objectid 1319842 offset
>>>>>> 35164160 count 1
>>>>>> shared data backref parent 7588669325312 count 1
>>>>>> item 6 key (7777093120000 EXTENT_ITEM 4096) itemoff 15821
>>>>>> itemsize 66
>>>>>> extent refs 2 gen 96511 flags DATA
>>>>>> extent data backref root 258 objectid 1319842 offset
>>>>>> 37261312 count 1
>>>>>> shared data backref parent 7588669325312 count 1
>>>>>> item 7 key (7777093124096 EXTENT_ITEM 4096) itemoff 15755
>>>>>> itemsize 66
>>>>>> extent refs 2 gen 96521 flags DATA
>>>>>> extent data backref root 258 objectid 1319842 offset
>>>>>> 45649920 count 1
>>>>>> shared data backref parent 7343916351488 count 1
>>>>>> item 8 key (7777093128192 EXTENT_ITEM 4096) itemoff 15689
>>>>>> itemsize 66
>>>>>> extent refs 2 gen 96521 flags DATA
>>>>>> extent data backref root 258 objectid 1319842 offset
>>>>>> 47747072 count 1
>>>>>> shared data backref parent 7343916351488 count 1
>>>>>> item 9 key (7777093132288 EXTENT_ITEM 4096) itemoff 15636
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 128816 flags DATA
>>>>>> extent data backref root 258 objectid 1747043 offset
>>>>>> 208896 count 1
>>>>>> item 10 key (7777093136384 EXTENT_ITEM 4096) itemoff 15583
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 128816 flags DATA
>>>>>> extent data backref root 258 objectid 1747043 offset
>>>>>> 1191936 count 1
>>>>>> item 11 key (7777093140480 EXTENT_ITEM 4096) itemoff 15530
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 128816 flags DATA
>>>>>> extent data backref root 258 objectid 1747043 offset
>>>>>> 1896448 count 1
>>>>>> item 12 key (7777093144576 EXTENT_ITEM 4096) itemoff 15477
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 128824 flags DATA
>>>>>> extent data backref root 258 objectid 1746670 offset
>>>>>> 3141632 count 1
>>>>>> item 13 key (7777093148672 EXTENT_ITEM 4096) itemoff 15424
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 128824 flags DATA
>>>>>> extent data backref root 258 objectid 1746670 offset
>>>>>> 7335936 count 1
>>>>>> item 14 key (7777093152768 EXTENT_ITEM 4096) itemoff 15371
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 128827 flags DATA
>>>>>> extent data backref root 258 objectid 1746598 offset
>>>>>> 2142208 count 1
>>>>>> item 15 key (7777093156864 EXTENT_ITEM 4096) itemoff 15318
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 128827 flags DATA
>>>>>> extent data backref root 258 objectid 1746598 offset
>>>>>> 6336512 count 1
>>>>>> item 16 key (7777093160960 EXTENT_ITEM 1167360) itemoff 15265
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 148358 flags DATA
>>>>>> extent data backref root 258 objectid 800697 offset
>>>>>> 219987968 count 1
>>>>>> item 17 key (7777094328320 EXTENT_ITEM 4096) itemoff 15212
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 152899 flags DATA
>>>>>> extent data backref root 258 objectid 2111468 offset
>>>>>> 909312 count 1
>>>>>> item 18 key (7777094332416 EXTENT_ITEM 20480) itemoff 15159
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 185891 flags DATA
>>>>>> extent data backref root 7565 objectid 135103 offset 0
>>>>>> count 1
>>>>>> item 19 key (7777094356992 EXTENT_ITEM 18608128) itemoff 15106
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 93646 flags DATA
>>>>>> extent data backref root 257 objectid 1798430 offset 0
>>>>>> count 1
>>>>>> item 20 key (7777112965120 EXTENT_ITEM 2465792) itemoff 15053
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 93647 flags DATA
>>>>>> extent data backref root 257 objectid 1798304 offset 0
>>>>>> count 1
>>>>>> item 21 key (7777115430912 EXTENT_ITEM 2441216) itemoff 15000
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 93647 flags DATA
>>>>>> extent data backref root 257 objectid 1798413 offset 0
>>>>>> count 1
>>>>>> item 22 key (7777117872128 EXTENT_ITEM 2617344) itemoff 14947
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 93647 flags DATA
>>>>>> extent data backref root 257 objectid 1798416 offset 0
>>>>>> count 1
>>>>>> item 23 key (7777120489472 EXTENT_ITEM 2592768) itemoff 14894
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 93647 flags DATA
>>>>>> extent data backref root 257 objectid 1798419 offset 0
>>>>>> count 1
>>>>>> item 24 key (7777123082240 EXTENT_ITEM 2355200) itemoff 14841
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 93647 flags DATA
>>>>>> extent data backref root 257 objectid 1798422 offset 0
>>>>>> count 1
>>>>>> item 25 key (7777125437440 EXTENT_ITEM 2469888) itemoff 14788
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 93647 flags DATA
>>>>>> extent data backref root 257 objectid 1798425 offset 0
>>>>>> count 1
>>>>>> item 26 key (7777127907328 EXTENT_ITEM 2646016) itemoff 14735
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 93647 flags DATA
>>>>>> extent data backref root 257 objectid 1798428 offset 0
>>>>>> count 1
>>>>>> item 27 key (7777130553344 EXTENT_ITEM 2461696) itemoff 14682
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 93647 flags DATA
>>>>>> extent data backref root 257 objectid 1798446 offset 0
>>>>>> count 1
>>>>>> item 28 key (7777133015040 EXTENT_ITEM 2637824) itemoff 14629
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 93647 flags DATA
>>>>>> extent data backref root 257 objectid 1798449 offset 0
>>>>>> count 1
>>>>>> item 29 key (7777135652864 EXTENT_ITEM 2609152) itemoff 14576
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 93647 flags DATA
>>>>>> extent data backref root 257 objectid 1798452 offset 0
>>>>>> count 1
>>>>>> item 30 key (7777138262016 EXTENT_ITEM 2375680) itemoff 14523
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 93647 flags DATA
>>>>>> extent data backref root 257 objectid 1798455 offset 0
>>>>>> count 1
>>>>>> item 31 key (7777140637696 EXTENT_ITEM 2490368) itemoff 14470
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 93647 flags DATA
>>>>>> extent data backref root 257 objectid 1798458 offset 0
>>>>>> count 1
>>>>>> item 32 key (7777143128064 EXTENT_ITEM 2666496) itemoff 14417
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 93647 flags DATA
>>>>>> extent data backref root 257 objectid 1798461 offset 0
>>>>>> count 1
>>>>>> item 33 key (7777145794560 EXTENT_ITEM 348160) itemoff 14364
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 148361 flags DATA
>>>>>> extent data backref root 258 objectid 800697 offset
>>>>>> 221151232 count 1
>>>>>> item 34 key (7777146142720 EXTENT_ITEM 913408) itemoff 14311
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 152889 flags DATA
>>>>>> extent data backref root 258 objectid 2111468 offset 0
>>>>>> count 1
>>>>>> item 35 key (7777147056128 EXTENT_ITEM 32768) itemoff 14258
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 185891 flags DATA
>>>>>> extent data backref root 7565 objectid 135085 offset 0
>>>>>> count 1
>>>>>> item 36 key (7777147088896 EXTENT_ITEM 12288) itemoff 14205
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 185891 flags DATA
>>>>>> extent data backref root 7565 objectid 135105 offset 0
>>>>>> count 1
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>>>>>> itemsize 53
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>>>>>> itemsize 53
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>>>>>> count 1
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>>>>>> count 4
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>>>>>> itemsize 53
>>>>>> extent refs 1 gen 185891 flags DATA
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>>>>>> count 2
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>>>>>> itemoff 11995 itemsize 24
>>>>>> block group used 1073135616 chunk_objectid 256 flags
>>>>>> DATA|RAID1
>>>>>> item 79 key (7777443381248 EXTENT_ITEM 211255296) itemoff
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>>>>>> 268435456 count 1
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>>>>>> 11863 itemsize 66
>>>>>> extent refs 147 gen 86553 flags DATA
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>>>>>> count 101
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>>>>>> 11797 itemsize 66
>>>>>> extent refs 167 gen 86553 flags DATA
>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 268435456 count 96
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>>>>>> 341114880 count 1
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>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 402767872 count 1
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>>>>>> itemsize 66
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>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 13631488 count 1
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>>>>>> itemsize 66
>>>>>> extent refs 2 gen 86560 flags DATA
>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 13975552 count 1
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>>>>>> itemsize 66
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>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 16236544 count 1
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>>>>>> extent data backref root 258 objectid 1257819 offset
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>>>>>> itemsize 66
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>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 406962176 count 1
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>>>>>> item 89 key (7778134110208 EXTENT_ITEM 4096) itemoff 11269
>>>>>> itemsize 66
>>>>>> extent refs 2 gen 86565 flags DATA
>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 46923776 count 1
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>>>>>> item 90 key (7778134114304 EXTENT_ITEM 4096) itemoff 11203
>>>>>> itemsize 66
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>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 47644672 count 1
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>>>>>> itemsize 66
>>>>>> extent refs 2 gen 86565 flags DATA
>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 49020928 count 1
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>>>>>> item 92 key (7778134122496 EXTENT_ITEM 4096) itemoff 11071
>>>>>> itemsize 66
>>>>>> extent refs 2 gen 86565 flags DATA
>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 49037312 count 1
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>>>>>> item 93 key (7778134126592 EXTENT_ITEM 4096) itemoff 11018
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>>>>>> extent data backref root 258 objectid 1257819 offset
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>>>>>> extent data backref root 258 objectid 1257819 offset
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>>>>>> extent data backref root 258 objectid 1257819 offset
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>>>>>> extent data backref root 258 objectid 1257819 offset
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>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 205635584 count 1
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>>>>>> extent data backref root 258 objectid 1257819 offset
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>>>>>> extent data backref root 258 objectid 1257819 offset
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>>>>>> extent data backref root 258 objectid 1257819 offset
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>>>>>> extent data backref root 258 objectid 1257819 offset
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>>>>>> extent data backref root 258 objectid 1257819 offset
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>>>>>> extent data backref root 258 objectid 1257819 offset
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>>>>>> itemsize 66
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>>>>>> extent data backref root 258 objectid 1257819 offset
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>>>>>> itemsize 66
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>>>>>> extent data backref root 258 objectid 1257819 offset
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>>>>>> itemsize 66
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>>>>>> extent data backref root 258 objectid 1257819 offset
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>>>>>> extent data backref root 258 objectid 1257819 offset
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>>>>>> itemsize 53
>>>>>> extent refs 1 gen 86572 flags DATA
>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 255967232 count 1
>>>>>> item 110 key (7778134196224 EXTENT_ITEM 4096) itemoff 10078
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 86574 flags DATA
>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 148488192 count 1
>>>>>> item 111 key (7778134200320 EXTENT_ITEM 4096) itemoff 10025
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 86574 flags DATA
>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 148635648 count 1
>>>>>> item 112 key (7778134204416 EXTENT_ITEM 4096) itemoff 9972
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 86574 flags DATA
>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 149684224 count 1
>>>>>> item 113 key (7778134208512 EXTENT_ITEM 4096) itemoff 9919
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 86574 flags DATA
>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 150077440 count 1
>>>>>> item 114 key (7778134212608 EXTENT_ITEM 4096) itemoff 9866
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 86574 flags DATA
>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 252444672 count 1
>>>>>> item 115 key (7778134216704 EXTENT_ITEM 4096) itemoff 9813
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 86574 flags DATA
>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 252608512 count 1
>>>>>> item 116 key (7778134220800 EXTENT_ITEM 4096) itemoff 9760
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 86574 flags DATA
>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 254263296 count 1
>>>>>> item 117 key (7778134224896 EXTENT_ITEM 4096) itemoff 9707
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 86574 flags DATA
>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 254541824 count 1
>>>>>> item 118 key (7778134228992 EXTENT_ITEM 4096) itemoff 9641
>>>>>> itemsize 66
>>>>>> extent refs 2 gen 86576 flags DATA
>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 411156480 count 1
>>>>>> shared data backref parent 5253034229760 count 1
>>>>>> item 119 key (7778134233088 EXTENT_ITEM 4096) itemoff 9588
>>>>>> itemsize 53
>>>>>> extent refs 1 gen 86577 flags DATA
>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 297910272 count 1
>>>>>> item 120 key (7778134237184 EXTENT_ITEM 4096) itemoff 9522
>>>>>> itemsize 66
>>>>>> extent refs 2 gen 86577 flags DATA
>>>>>> extent data backref root 258 objectid 1257819 offset
>>>>>> 411811840 count 1
>>>>>> shared data backref parent 5253034229760 count 1
>>>>>> item 121 key (7778134241280 EXTENT_ITEM 4096) itemoff 9456
>>>>>> itemsize 66
>>>>>> extent refs 2 gen 86577 flags DATA
>>>>>> extent data backref root 258 objectid 1257819 offset
>>
>>
>>
>> --
>> Tom Dickson-Hunt
>
>
>
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Recovery of a raid1 FS
2016-01-11 1:50 ` Qu Wenruo
@ 2016-01-22 17:10 ` Tom Hunt
0 siblings, 0 replies; 11+ messages in thread
From: Tom Hunt @ 2016-01-22 17:10 UTC (permalink / raw)
To: Qu Wenruo; +Cc: linux-btrfs
Belatedly: I ended up restoring from backup and giving up on the
broken volume. I'm no longer really in a position to troubleshoot it
(disks are still around, but not plugged in anywhere).
It turned out that I had been running with bad memory for about a week
prior, causing various crashes and segfaults; I suspect this is the
cause of the initial issue.
On Mon, Jan 11, 2016 at 09:50:48AM +0800, Qu Wenruo wrote:
> Ok, some extent tree error made extent tree init failed.
>
> Would you please paste the output of "btrfs-show-super -f -a"?
>
> That may be the last hope for fast fix.
>
> If show-super showed nothing useful, then btrfs-chunk-recovery may help, but
> it will takes a long long long time to do the work.
>
> Thanks,
> Qu
>
> Tom Hunt wrote on 2016/01/09 00:18 -0700:
> >Just for fun, I tried btrfs check --repair, but no dice:
> >
> >[root@archiso ~]# btrfs check --repair /dev/mapper/rootvol_1
> >enabling repair mode
> >warning, device 2 is missing
> >warning devid 2 not found already
> >bad key ordering 49 50
> >repair mode will force to clear out log tree, Are you sure? [y/N]: y
> >Unable to find block group for 0
> >extent-tree.c:289: find_search_start: Assertion `1` failed.
> >btrfs[0x44161e]
> >btrfs(btrfs_reserve_extent+0xa7b)[0x4463db]
> >btrfs(btrfs_alloc_free_block+0x5f)[0x44649f]
> >btrfs(__btrfs_cow_block+0xc4)[0x437d64]
> >btrfs(btrfs_cow_block+0x35)[0x438365]
> >btrfs[0x43d3d6]
> >btrfs(btrfs_commit_transaction+0x95)[0x43f125]
> >btrfs(cmd_check+0x5ec)[0x429cdc]
> >btrfs(main+0x82)[0x40ef32]
> >/usr/lib/libc.so.6(__libc_start_main+0xf0)[0x7f265ba38610]
> >btrfs(_start+0x29)[0x40f039]
> >
> >Seems to be the same point at which they both fail. I have no idea
> >what might be the cause.
> >
> >On Thu, Jan 7, 2016 at 8:46 PM, Tom Hunt <tomdicksonhunt@gmail.com> wrote:
> >>>You can try this method.
> >>>But after that, *NEVER* put all the two devices online *TOGETHER*.
> >>
> >>Tried this, with only one disk of the volume plugged in. Results:
> >>
> >>[root@archiso ~]# btrfs check --init-extent-tree /dev/mapper/rootvol_1
> >>warning, device 2 is missing
> >>warning devid 2 not found already
> >>repair mode will force to clear out log tree, Are you sure? [y/N]: y
> >>Unable to find block group for 0
> >>extent-tree.c:289: find_search_start: Assertion `1` failed.
> >>btrfs[0x44161e]
> >>btrfs(btrfs_reserve_extent+0xa7b)[0x4463db]
> >>btrfs(btrfs_alloc_free_block+0x5f)[0x44649f]
> >>btrfs(__btrfs_cow_block+0xc4)[0x437d64]
> >>btrfs(btrfs_cow_block+0x35)[0x438365]
> >>btrfs[0x43d3d6]
> >>btrfs(btrfs_commit_transaction+0x95)[0x43f125]
> >>btrfs(cmd_check+0x5ec)[0x429cdc]
> >>btrfs(main+0x82)[0x40ef32]
> >>/usr/lib/libc.so.6(__libc_start_main+0xf0)[0x7fe478ef0610]
> >>btrfs(_start+0x29)[0x40f039]
> >>
> >>On Thu, Jan 7, 2016 at 7:26 PM, Qu Wenruo <quwenruo@cn.fujitsu.com> wrote:
> >>>
> >>>
> >>>Tom Hunt wrote on 2016/01/07 19:02 -0700:
> >>>>>
> >>>>>Does the sudden end means a segfault?
> >>>>
> >>>>
> >>>>The sudden end means an end. The program terminated without any
> >>>>further output or error indication.
> >>>>
> >>>>>And what's the output of btrfs-debug-tree /dev/mapper/rootvol_1 -b
> >>>>>6210223521792?
> >>>>
> >>>>
> >>>>[root@archiso ~]# btrfs-debug-tree /dev/mapper/rootvol_1 -b 6210223521792
> >>>>bad key ordering 49 50
> >>>>leaf 6210223521792 items 123 free space 55 generation 257371 owner 1
> >>>>fs uuid 91f7e058-1142-4036-b1f7-4f64163dc8ae
> >>>>chunk uuid 6abf465c-c677-4879-a4ca-d632e43e01e4
> >>>> item 0 key (7302 INODE_ITEM 0) itemoff 16123 itemsize 160
> >>>> inode generation 37573 transid 37573 size 262144 nbytes
> >>>>1048576
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 1 key (7302 EXTENT_DATA 0) itemoff 16070 itemsize 53
> >>>> extent data disk byte 7564439363584 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 2 key (7303 INODE_ITEM 0) itemoff 15910 itemsize 160
> >>>> inode generation 37573 transid 37573 size 262144 nbytes
> >>>>786432
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 3 key (7303 EXTENT_DATA 0) itemoff 15857 itemsize 53
> >>>> extent data disk byte 7564439662592 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 4 key (7304 INODE_ITEM 0) itemoff 15697 itemsize 160
> >>>> inode generation 36550 transid 36550 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 5 key (7304 EXTENT_DATA 0) itemoff 15644 itemsize 53
> >>>> extent data disk byte 7517322158080 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 6 key (7305 INODE_ITEM 0) itemoff 15484 itemsize 160
> >>>> inode generation 37573 transid 37573 size 262144 nbytes
> >>>>524288
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 7 key (7305 EXTENT_DATA 0) itemoff 15431 itemsize 53
> >>>> extent data disk byte 7564439941120 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 8 key (7306 INODE_ITEM 0) itemoff 15271 itemsize 160
> >>>> inode generation 37573 transid 37573 size 262144 nbytes
> >>>>786432
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 9 key (7306 EXTENT_DATA 0) itemoff 15218 itemsize 53
> >>>> extent data disk byte 7564440219648 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 10 key (7307 INODE_ITEM 0) itemoff 15058 itemsize 160
> >>>> inode generation 37576 transid 37576 size 262144 nbytes
> >>>>1310720
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 11 key (7307 EXTENT_DATA 0) itemoff 15005 itemsize 53
> >>>> extent data disk byte 7564425949184 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 12 key (7308 INODE_ITEM 0) itemoff 14845 itemsize 160
> >>>> inode generation 36586 transid 36586 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 13 key (7308 EXTENT_DATA 0) itemoff 14792 itemsize 53
> >>>> extent data disk byte 7355300618240 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 14 key (7309 INODE_ITEM 0) itemoff 14632 itemsize 160
> >>>> inode generation 257365 transid 257365 size 262144
> >>>>nbytes 11781537792
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 15 key (7309 EXTENT_DATA 0) itemoff 14579 itemsize 53
> >>>> extent data disk byte 7770707218432 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 16 key (7310 INODE_ITEM 0) itemoff 14419 itemsize 160
> >>>> inode generation 37590 transid 37590 size 262144 nbytes
> >>>>786432
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 17 key (7310 EXTENT_DATA 0) itemoff 14366 itemsize 53
> >>>> extent data disk byte 7569787527168 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 18 key (7311 INODE_ITEM 0) itemoff 14206 itemsize 160
> >>>> inode generation 37591 transid 37591 size 262144 nbytes
> >>>>1048576
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 19 key (7311 EXTENT_DATA 0) itemoff 14153 itemsize 53
> >>>> extent data disk byte 7569797865472 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 20 key (7312 INODE_ITEM 0) itemoff 13993 itemsize 160
> >>>> inode generation 36625 transid 36625 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 21 key (7312 EXTENT_DATA 0) itemoff 13940 itemsize 53
> >>>> extent data disk byte 7517400543232 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 22 key (7313 INODE_ITEM 0) itemoff 13780 itemsize 160
> >>>> inode generation 36634 transid 36634 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 23 key (7313 EXTENT_DATA 0) itemoff 13727 itemsize 53
> >>>> extent data disk byte 7531318194176 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 24 key (7314 INODE_ITEM 0) itemoff 13567 itemsize 160
> >>>> inode generation 239734 transid 239734 size 262144
> >>>>nbytes 2359558144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 25 key (7314 EXTENT_DATA 0) itemoff 13514 itemsize 53
> >>>> extent data disk byte 8005861564416 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 26 key (7315 INODE_ITEM 0) itemoff 13354 itemsize 160
> >>>> inode generation 36652 transid 36652 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 27 key (7315 EXTENT_DATA 0) itemoff 13301 itemsize 53
> >>>> extent data disk byte 4990757240832 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 28 key (7316 INODE_ITEM 0) itemoff 13141 itemsize 160
> >>>> inode generation 36661 transid 36661 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 29 key (7316 EXTENT_DATA 0) itemoff 13088 itemsize 53
> >>>> extent data disk byte 7066322538496 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 30 key (7317 INODE_ITEM 0) itemoff 12928 itemsize 160
> >>>> inode generation 36672 transid 36672 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 31 key (7317 EXTENT_DATA 0) itemoff 12875 itemsize 53
> >>>> extent data disk byte 7278922661888 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 32 key (7318 INODE_ITEM 0) itemoff 12715 itemsize 160
> >>>> inode generation 36682 transid 36682 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 33 key (7318 EXTENT_DATA 0) itemoff 12662 itemsize 53
> >>>> extent data disk byte 7313284538368 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 34 key (7319 INODE_ITEM 0) itemoff 12502 itemsize 160
> >>>> inode generation 36692 transid 36692 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 35 key (7319 EXTENT_DATA 0) itemoff 12449 itemsize 53
> >>>> extent data disk byte 7184434880512 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 36 key (7320 INODE_ITEM 0) itemoff 12289 itemsize 160
> >>>> inode generation 36702 transid 36702 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 37 key (7320 EXTENT_DATA 0) itemoff 12236 itemsize 53
> >>>> extent data disk byte 7518426820608 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 38 key (7321 INODE_ITEM 0) itemoff 12076 itemsize 160
> >>>> inode generation 36711 transid 36711 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 39 key (7321 EXTENT_DATA 0) itemoff 12023 itemsize 53
> >>>> extent data disk byte 7372338782208 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 40 key (7322 INODE_ITEM 0) itemoff 11863 itemsize 160
> >>>> inode generation 36720 transid 36720 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 41 key (7322 EXTENT_DATA 0) itemoff 11810 itemsize 53
> >>>> extent data disk byte 7526872854528 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 42 key (7323 INODE_ITEM 0) itemoff 11650 itemsize 160
> >>>> inode generation 36729 transid 36729 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 43 key (7323 EXTENT_DATA 0) itemoff 11597 itemsize 53
> >>>> extent data disk byte 4990756978688 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 44 key (7324 INODE_ITEM 0) itemoff 11437 itemsize 160
> >>>> inode generation 36739 transid 36739 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 45 key (7324 EXTENT_DATA 0) itemoff 11384 itemsize 53
> >>>> extent data disk byte 7520553996288 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 46 key (7325 INODE_ITEM 0) itemoff 11224 itemsize 160
> >>>> inode generation 36749 transid 36749 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 47 key (7325 EXTENT_DATA 0) itemoff 11171 itemsize 53
> >>>> extent data disk byte 7531508781056 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 48 key (7326 INODE_ITEM 0) itemoff 11011 itemsize 160
> >>>> inode generation 251050 transid 251050 size 262144
> >>>>nbytes 8435793920
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 49 key (7326 EXTENT_DATA 0) itemoff 10958 itemsize 53
> >>>> extent data disk byte 7747063099392 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 50 key (7327 INODE_ITEM 0) itemoff 10798 itemsize 160
> >>>> inode generation 36767 transid 36767 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 51 key (7327 EXTENT_DATA 0) itemoff 10745 itemsize 53
> >>>> extent data disk byte 7517323468800 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 52 key (7328 INODE_ITEM 0) itemoff 10585 itemsize 160
> >>>> inode generation 36777 transid 36777 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 53 key (7328 EXTENT_DATA 0) itemoff 10532 itemsize 53
> >>>> extent data disk byte 7529166970880 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 54 key (7329 INODE_ITEM 0) itemoff 10372 itemsize 160
> >>>> inode generation 40097 transid 40097 size 262144 nbytes
> >>>>82313216
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 55 key (7329 EXTENT_DATA 0) itemoff 10319 itemsize 53
> >>>> extent data disk byte 7370190655488 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 56 key (3234 INODE_ITEM 0) itemoff 10159 itemsize 160
> >>>> inode generation 36795 transid 36795 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 57 key (7346 EXTENT_DATA 0) itemoff 10106 itemsize 53
> >>>> extent data disk byte 7521490550784 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>
> >>>Item 56 and 57 are corrupted.
> >>>Their inode number should be 7330, but they are not.
> >>>
> >>>If the output is valid, especially for the owner, then it means your free
> >>>space cache is damaged, but that's a very small problem though.
> >>>
> >>>> item 58 key (7331 INODE_ITEM 0) itemoff 9946 itemsize 160
> >>>> inode generation 36804 transid 36804 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 59 key (7331 EXTENT_DATA 0) itemoff 9893 itemsize 53
> >>>> extent data disk byte 7526874955776 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 60 key (7332 INODE_ITEM 0) itemoff 9733 itemsize 160
> >>>> inode generation 257363 transid 257363 size 262144
> >>>>nbytes 13501202432
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 61 key (7332 EXTENT_DATA 0) itemoff 9680 itemsize 53
> >>>> extent data disk byte 7747053572096 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 62 key (7333 INODE_ITEM 0) itemoff 9520 itemsize 160
> >>>> inode generation 257371 transid 257371 size 262144
> >>>>nbytes 16589520896
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 63 key (7333 EXTENT_DATA 0) itemoff 9467 itemsize 53
> >>>> extent data disk byte 7775023665152 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 64 key (7334 INODE_ITEM 0) itemoff 9307 itemsize 160
> >>>> inode generation 239755 transid 239755 size 262144
> >>>>nbytes 13442482176
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 65 key (7334 EXTENT_DATA 0) itemoff 9254 itemsize 53
> >>>> extent data disk byte 7896225873920 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 66 key (7335 INODE_ITEM 0) itemoff 9094 itemsize 160
> >>>> inode generation 239755 transid 239755 size 262144
> >>>>nbytes 1324613632
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 67 key (7335 EXTENT_DATA 0) itemoff 9041 itemsize 53
> >>>> extent data disk byte 7896226185216 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 68 key (7336 INODE_ITEM 0) itemoff 8881 itemsize 160
> >>>> inode generation 240953 transid 240953 size 262144
> >>>>nbytes 3632529408
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 69 key (7336 EXTENT_DATA 0) itemoff 8828 itemsize 53
> >>>> extent data disk byte 5919597350912 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 70 key (7337 INODE_ITEM 0) itemoff 8668 itemsize 160
> >>>> inode generation 243010 transid 243010 size 262144
> >>>>nbytes 2379481088
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 71 key (7337 EXTENT_DATA 0) itemoff 8615 itemsize 53
> >>>> extent data disk byte 5918852136960 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 72 key (7338 INODE_ITEM 0) itemoff 8455 itemsize 160
> >>>> inode generation 79477 transid 79477 size 262144 nbytes
> >>>>24117248
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 73 key (7338 EXTENT_DATA 0) itemoff 8402 itemsize 53
> >>>> extent data disk byte 7715922624512 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 74 key (7339 INODE_ITEM 0) itemoff 8242 itemsize 160
> >>>> inode generation 81958 transid 81958 size 262144 nbytes
> >>>>78381056
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 75 key (7339 EXTENT_DATA 0) itemoff 8189 itemsize 53
> >>>> extent data disk byte 7721189564416 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 76 key (7340 INODE_ITEM 0) itemoff 8029 itemsize 160
> >>>> inode generation 83591 transid 83591 size 262144
> >>>>nbytes 165150720
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 77 key (7340 EXTENT_DATA 0) itemoff 7976 itemsize 53
> >>>> extent data disk byte 7744960389120 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 78 key (7341 INODE_ITEM 0) itemoff 7816 itemsize 160
> >>>> inode generation 47076 transid 47076 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 79 key (7341 EXTENT_DATA 0) itemoff 7763 itemsize 53
> >>>> extent data disk byte 7518415810560 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 80 key (7342 INODE_ITEM 0) itemoff 7603 itemsize 160
> >>>> inode generation 47085 transid 47085 size 262144 nbytes
> >>>>1048576
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 81 key (7342 EXTENT_DATA 0) itemoff 7550 itemsize 53
> >>>> extent data disk byte 7532088664064 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 82 key (7343 INODE_ITEM 0) itemoff 7390 itemsize 160
> >>>> inode generation 47077 transid 47077 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 83 key (7343 EXTENT_DATA 0) itemoff 7337 itemsize 53
> >>>> extent data disk byte 7517316259840 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 84 key (7344 INODE_ITEM 0) itemoff 7177 itemsize 160
> >>>> inode generation 47196 transid 47196 size 262144 nbytes
> >>>>22282240
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 85 key (7344 EXTENT_DATA 0) itemoff 7124 itemsize 53
> >>>> extent data disk byte 6878509641728 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 86 key (7345 INODE_ITEM 0) itemoff 6964 itemsize 160
> >>>> inode generation 47078 transid 47078 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 87 key (7345 EXTENT_DATA 0) itemoff 6911 itemsize 53
> >>>> extent data disk byte 7517369085952 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 88 key (7346 INODE_ITEM 0) itemoff 6751 itemsize 160
> >>>> inode generation 47235 transid 47235 size 262144 nbytes
> >>>>23592960
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 89 key (7346 EXTENT_DATA 0) itemoff 6698 itemsize 53
> >>>> extent data disk byte 6878511214592 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 90 key (7347 INODE_ITEM 0) itemoff 6538 itemsize 160
> >>>> inode generation 47078 transid 47078 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 91 key (7347 EXTENT_DATA 0) itemoff 6485 itemsize 53
> >>>> extent data disk byte 7520553472000 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 92 key (7348 INODE_ITEM 0) itemoff 6325 itemsize 160
> >>>> inode generation 47228 transid 47228 size 262144 nbytes
> >>>>22020096
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 93 key (7348 EXTENT_DATA 0) itemoff 6272 itemsize 53
> >>>> extent data disk byte 6878522159104 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 94 key (7349 INODE_ITEM 0) itemoff 6112 itemsize 160
> >>>> inode generation 47078 transid 47078 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 95 key (7349 EXTENT_DATA 0) itemoff 6059 itemsize 53
> >>>> extent data disk byte 7531921424384 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 96 key (7350 INODE_ITEM 0) itemoff 5899 itemsize 160
> >>>> inode generation 47181 transid 47181 size 262144 nbytes
> >>>>13631488
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 97 key (7350 EXTENT_DATA 0) itemoff 5846 itemsize 53
> >>>> extent data disk byte 6878515281920 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 98 key (7351 INODE_ITEM 0) itemoff 5686 itemsize 160
> >>>> inode generation 47078 transid 47078 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 99 key (7351 EXTENT_DATA 0) itemoff 5633 itemsize 53
> >>>> extent data disk byte 7538744426496 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 100 key (7352 INODE_ITEM 0) itemoff 5473 itemsize 160
> >>>> inode generation 47183 transid 47183 size 262144 nbytes
> >>>>11796480
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 101 key (7352 EXTENT_DATA 0) itemoff 5420 itemsize 53
> >>>> extent data disk byte 6878518218752 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 102 key (7353 INODE_ITEM 0) itemoff 5260 itemsize 160
> >>>> inode generation 47078 transid 47078 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 103 key (7353 EXTENT_DATA 0) itemoff 5207 itemsize 53
> >>>> extent data disk byte 7540909154304 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 104 key (7354 INODE_ITEM 0) itemoff 5047 itemsize 160
> >>>> inode generation 47196 transid 47196 size 262144 nbytes
> >>>>15466496
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 105 key (7354 EXTENT_DATA 0) itemoff 4994 itemsize 53
> >>>> extent data disk byte 6878513303552 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 106 key (7355 INODE_ITEM 0) itemoff 4834 itemsize 160
> >>>> inode generation 47078 transid 47078 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 107 key (7355 EXTENT_DATA 0) itemoff 4781 itemsize 53
> >>>> extent data disk byte 7564487045120 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 108 key (7356 INODE_ITEM 0) itemoff 4621 itemsize 160
> >>>> inode generation 47210 transid 47210 size 262144 nbytes
> >>>>19660800
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 109 key (7356 EXTENT_DATA 0) itemoff 4568 itemsize 53
> >>>> extent data disk byte 6878541139968 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 110 key (7357 INODE_ITEM 0) itemoff 4408 itemsize 160
> >>>> inode generation 47079 transid 47079 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 111 key (7357 EXTENT_DATA 0) itemoff 4355 itemsize 53
> >>>> extent data disk byte 7538756612096 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 112 key (7358 INODE_ITEM 0) itemoff 4195 itemsize 160
> >>>> inode generation 47079 transid 47079 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 113 key (7358 EXTENT_DATA 0) itemoff 4142 itemsize 53
> >>>> extent data disk byte 7582721437696 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 114 key (7359 INODE_ITEM 0) itemoff 3982 itemsize 160
> >>>> inode generation 82232 transid 82232 size 262144 nbytes
> >>>>44564480
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 115 key (7359 EXTENT_DATA 0) itemoff 3929 itemsize 53
> >>>> extent data disk byte 7724558057472 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 116 key (7360 INODE_ITEM 0) itemoff 3769 itemsize 160
> >>>> inode generation 47080 transid 47080 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 117 key (7360 EXTENT_DATA 0) itemoff 3716 itemsize 53
> >>>> extent data disk byte 4658994225152 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 118 key (7361 INODE_ITEM 0) itemoff 3556 itemsize 160
> >>>> inode generation 47080 transid 47080 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 119 key (7361 EXTENT_DATA 0) itemoff 3503 itemsize 53
> >>>> extent data disk byte 6905566703616 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 120 key (7362 INODE_ITEM 0) itemoff 3343 itemsize 160
> >>>> inode generation 79539 transid 79539 size 262144 nbytes
> >>>>38535168
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>> item 121 key (7362 EXTENT_DATA 0) itemoff 3290 itemsize 53
> >>>> extent data disk byte 7720056217600 nr 262144
> >>>> extent data offset 0 nr 262144 ram 262144
> >>>> extent compression 0
> >>>> item 122 key (7363 INODE_ITEM 0) itemoff 3130 itemsize 160
> >>>> inode generation 47080 transid 47080 size 262144 nbytes
> >>>>262144
> >>>> block group 0 mode 100600 links 1 uid 0 gid 0
> >>>> rdev 0 flags 0x1b
> >>>>
> >>>>>If btrfs-debug-tree can still output things like below, and the leaf's
> >>>>>owner is still 2, I'd recommend to run btrfsck --init-extent-tree, which
> >>>>>should has a good chance to fix it.
> >>>>
> >>>>
> >>>>>Although even in that case, I'm not 100% sure if it will work, or do more
> >>>>>damage...
> >>>>
> >>>>
> >>>>Would it be a sensible precaution to unplug one disk and attempt
> >>>>recovery on a single one? If I understand correctly, all the data
> >>>>should be available on either. This disk is quite significant to me,
> >>>>and the other option is restoring from a week-old backup; annoying, if
> >>>>not fatal.
> >>>
> >>>
> >>>You can try this method.
> >>>But after that, *NEVER* put all the two devices online *TOGETHER*.
> >>>
> >>>Thanks,
> >>>Qu
> >>>>
> >>>>
> >>>>For the record, I've also already bought new disks and will be
> >>>>operating with those going forward, so a transfer of data will be
> >>>>necessary in any case. (There was the possibility of hardware damage
> >>>>from a flood a little while ago, and even if this is unrelated, I'm
> >>>>paranoid about this volume.)
> >>>>
> >>>>On Thu, Jan 7, 2016 at 6:48 PM, Qu Wenruo <quwenruo@cn.fujitsu.com> wrote:
> >>>>>
> >>>>>
> >>>>>
> >>>>>Tom Hunt wrote on 2016/01/07 18:43 -0700:
> >>>>>>
> >>>>>>
> >>>>>>I had done this already, but somehow forgot to include it. (Internet
> >>>>>>suggests 'btrfs check' is synonym for 'btrfsck'; if this is not the
> >>>>>>case, please advise.)
> >>>>>>
> >>>>>>[root@archiso ~]# btrfs check /dev/mapper/rootvol_1
> >>>>>>bad key ordering 49 50
> >>>>>>Checking filesystem on /dev/mapper/rootvol_1
> >>>>>>UUID: 91f7e058-1142-4036-b1f7-4f64163dc8ae
> >>>>>>checking extents
> >>>>>>bad key ordering 55 56
> >>>>>>bad block 6210223521792
> >>>>>>Errors found in extent allocation tree or chunk allocation
> >>>>>>bad key ordering 55 56
> >>>>>
> >>>>>
> >>>>>
> >>>>>Does the sudden end means a segfault?
> >>>>>
> >>>>>>
> >>>>>>And the other:
> >>>>>>
> >>>>>>[root@archiso ~]# btrfs-debug-tree /dev/mapper/rootvol_1 -b
> >>>>>>6210228551680
> >>>>>>bad key ordering 49 50
> >>>>>>leaf 6210228551680 items 195 free space 244 generation 257371 owner 2
> >>>>>
> >>>>>
> >>>>>
> >>>>>That's extent tree, not a big problem as the whole extent tree can be
> >>>>>easily
> >>>>>rebuilt.
> >>>>>
> >>>>>And what's the output of btrfs-debug-tree /dev/mapper/rootvol_1 -b
> >>>>>6210223521792?
> >>>>>
> >>>>>If btrfs-debug-tree can still output things like below, and the leaf's
> >>>>>owner
> >>>>>is still 2, I'd recommend to run btrfsck --init-extent-tree, which should
> >>>>>has a good chance to fix it.
> >>>>>
> >>>>>Although even in that case, I'm not 100% sure if it will work, or do more
> >>>>>damage...
> >>>>>
> >>>>>Thanks,
> >>>>>Qu
> >>>>>
> >>>>>
> >>>>>>fs uuid 91f7e058-1142-4036-b1f7-4f64163dc8ae
> >>>>>>chunk uuid 6abf465c-c677-4879-a4ca-d632e43e01e4
> >>>>>> item 0 key (7777093095424 EXTENT_ITEM 4096) itemoff 16217
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 96498 flags DATA
> >>>>>> extent data backref root 258 objectid 1319842 offset
> >>>>>>16289792 count 1
> >>>>>> shared data backref parent 7588669325312 count 1
> >>>>>> item 1 key (7777093099520 EXTENT_ITEM 4096) itemoff 16151
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 96498 flags DATA
> >>>>>> extent data backref root 258 objectid 1319842 offset
> >>>>>>20484096 count 1
> >>>>>> shared data backref parent 7588669325312 count 1
> >>>>>> item 2 key (7777093103616 EXTENT_ITEM 4096) itemoff 16085
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 96498 flags DATA
> >>>>>> extent data backref root 258 objectid 1319842 offset
> >>>>>>22581248 count 1
> >>>>>> shared data backref parent 7588669325312 count 1
> >>>>>> item 3 key (7777093107712 EXTENT_ITEM 4096) itemoff 16019
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 96501 flags DATA
> >>>>>> extent data backref root 258 objectid 1319842 offset
> >>>>>>56135680 count 1
> >>>>>> shared data backref parent 7343916351488 count 1
> >>>>>> item 4 key (7777093111808 EXTENT_ITEM 4096) itemoff 15953
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 96501 flags DATA
> >>>>>> extent data backref root 258 objectid 1319842 offset
> >>>>>>58232832 count 1
> >>>>>> shared data backref parent 7343916351488 count 1
> >>>>>> item 5 key (7777093115904 EXTENT_ITEM 4096) itemoff 15887
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 96511 flags DATA
> >>>>>> extent data backref root 258 objectid 1319842 offset
> >>>>>>35164160 count 1
> >>>>>> shared data backref parent 7588669325312 count 1
> >>>>>> item 6 key (7777093120000 EXTENT_ITEM 4096) itemoff 15821
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 96511 flags DATA
> >>>>>> extent data backref root 258 objectid 1319842 offset
> >>>>>>37261312 count 1
> >>>>>> shared data backref parent 7588669325312 count 1
> >>>>>> item 7 key (7777093124096 EXTENT_ITEM 4096) itemoff 15755
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 96521 flags DATA
> >>>>>> extent data backref root 258 objectid 1319842 offset
> >>>>>>45649920 count 1
> >>>>>> shared data backref parent 7343916351488 count 1
> >>>>>> item 8 key (7777093128192 EXTENT_ITEM 4096) itemoff 15689
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 96521 flags DATA
> >>>>>> extent data backref root 258 objectid 1319842 offset
> >>>>>>47747072 count 1
> >>>>>> shared data backref parent 7343916351488 count 1
> >>>>>> item 9 key (7777093132288 EXTENT_ITEM 4096) itemoff 15636
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 128816 flags DATA
> >>>>>> extent data backref root 258 objectid 1747043 offset
> >>>>>>208896 count 1
> >>>>>> item 10 key (7777093136384 EXTENT_ITEM 4096) itemoff 15583
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 128816 flags DATA
> >>>>>> extent data backref root 258 objectid 1747043 offset
> >>>>>>1191936 count 1
> >>>>>> item 11 key (7777093140480 EXTENT_ITEM 4096) itemoff 15530
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 128816 flags DATA
> >>>>>> extent data backref root 258 objectid 1747043 offset
> >>>>>>1896448 count 1
> >>>>>> item 12 key (7777093144576 EXTENT_ITEM 4096) itemoff 15477
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 128824 flags DATA
> >>>>>> extent data backref root 258 objectid 1746670 offset
> >>>>>>3141632 count 1
> >>>>>> item 13 key (7777093148672 EXTENT_ITEM 4096) itemoff 15424
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 128824 flags DATA
> >>>>>> extent data backref root 258 objectid 1746670 offset
> >>>>>>7335936 count 1
> >>>>>> item 14 key (7777093152768 EXTENT_ITEM 4096) itemoff 15371
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 128827 flags DATA
> >>>>>> extent data backref root 258 objectid 1746598 offset
> >>>>>>2142208 count 1
> >>>>>> item 15 key (7777093156864 EXTENT_ITEM 4096) itemoff 15318
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 128827 flags DATA
> >>>>>> extent data backref root 258 objectid 1746598 offset
> >>>>>>6336512 count 1
> >>>>>> item 16 key (7777093160960 EXTENT_ITEM 1167360) itemoff 15265
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 148358 flags DATA
> >>>>>> extent data backref root 258 objectid 800697 offset
> >>>>>>219987968 count 1
> >>>>>> item 17 key (7777094328320 EXTENT_ITEM 4096) itemoff 15212
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 152899 flags DATA
> >>>>>> extent data backref root 258 objectid 2111468 offset
> >>>>>>909312 count 1
> >>>>>> item 18 key (7777094332416 EXTENT_ITEM 20480) itemoff 15159
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 185891 flags DATA
> >>>>>> extent data backref root 7565 objectid 135103 offset 0
> >>>>>>count 1
> >>>>>> item 19 key (7777094356992 EXTENT_ITEM 18608128) itemoff 15106
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 93646 flags DATA
> >>>>>> extent data backref root 257 objectid 1798430 offset 0
> >>>>>>count 1
> >>>>>> item 20 key (7777112965120 EXTENT_ITEM 2465792) itemoff 15053
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 93647 flags DATA
> >>>>>> extent data backref root 257 objectid 1798304 offset 0
> >>>>>>count 1
> >>>>>> item 21 key (7777115430912 EXTENT_ITEM 2441216) itemoff 15000
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 93647 flags DATA
> >>>>>> extent data backref root 257 objectid 1798413 offset 0
> >>>>>>count 1
> >>>>>> item 22 key (7777117872128 EXTENT_ITEM 2617344) itemoff 14947
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 93647 flags DATA
> >>>>>> extent data backref root 257 objectid 1798416 offset 0
> >>>>>>count 1
> >>>>>> item 23 key (7777120489472 EXTENT_ITEM 2592768) itemoff 14894
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 93647 flags DATA
> >>>>>> extent data backref root 257 objectid 1798419 offset 0
> >>>>>>count 1
> >>>>>> item 24 key (7777123082240 EXTENT_ITEM 2355200) itemoff 14841
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 93647 flags DATA
> >>>>>> extent data backref root 257 objectid 1798422 offset 0
> >>>>>>count 1
> >>>>>> item 25 key (7777125437440 EXTENT_ITEM 2469888) itemoff 14788
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 93647 flags DATA
> >>>>>> extent data backref root 257 objectid 1798425 offset 0
> >>>>>>count 1
> >>>>>> item 26 key (7777127907328 EXTENT_ITEM 2646016) itemoff 14735
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 93647 flags DATA
> >>>>>> extent data backref root 257 objectid 1798428 offset 0
> >>>>>>count 1
> >>>>>> item 27 key (7777130553344 EXTENT_ITEM 2461696) itemoff 14682
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 93647 flags DATA
> >>>>>> extent data backref root 257 objectid 1798446 offset 0
> >>>>>>count 1
> >>>>>> item 28 key (7777133015040 EXTENT_ITEM 2637824) itemoff 14629
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 93647 flags DATA
> >>>>>> extent data backref root 257 objectid 1798449 offset 0
> >>>>>>count 1
> >>>>>> item 29 key (7777135652864 EXTENT_ITEM 2609152) itemoff 14576
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 93647 flags DATA
> >>>>>> extent data backref root 257 objectid 1798452 offset 0
> >>>>>>count 1
> >>>>>> item 30 key (7777138262016 EXTENT_ITEM 2375680) itemoff 14523
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 93647 flags DATA
> >>>>>> extent data backref root 257 objectid 1798455 offset 0
> >>>>>>count 1
> >>>>>> item 31 key (7777140637696 EXTENT_ITEM 2490368) itemoff 14470
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 93647 flags DATA
> >>>>>> extent data backref root 257 objectid 1798458 offset 0
> >>>>>>count 1
> >>>>>> item 32 key (7777143128064 EXTENT_ITEM 2666496) itemoff 14417
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 93647 flags DATA
> >>>>>> extent data backref root 257 objectid 1798461 offset 0
> >>>>>>count 1
> >>>>>> item 33 key (7777145794560 EXTENT_ITEM 348160) itemoff 14364
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 148361 flags DATA
> >>>>>> extent data backref root 258 objectid 800697 offset
> >>>>>>221151232 count 1
> >>>>>> item 34 key (7777146142720 EXTENT_ITEM 913408) itemoff 14311
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 152889 flags DATA
> >>>>>> extent data backref root 258 objectid 2111468 offset 0
> >>>>>>count 1
> >>>>>> item 35 key (7777147056128 EXTENT_ITEM 32768) itemoff 14258
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 185891 flags DATA
> >>>>>> extent data backref root 7565 objectid 135085 offset 0
> >>>>>>count 1
> >>>>>> item 36 key (7777147088896 EXTENT_ITEM 12288) itemoff 14205
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 185891 flags DATA
> >>>>>> extent data backref root 7565 objectid 135105 offset 0
> >>>>>>count 1
> >>>>>> item 37 key (7777147105280 EXTENT_ITEM 10260480) itemoff 14152
> >>>>>>itemsize 53
> >>>>>> extent refs 3 gen 128803 flags DATA
> >>>>>> extent data backref root 258 objectid 1746598 offset 0
> >>>>>>count 3
> >>>>>> item 38 key (7777157365760 EXTENT_ITEM 4096) itemoff 14099
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 257306 flags DATA
> >>>>>> extent data backref root 258 objectid 839874 offset
> >>>>>>1716224 count 1
> >>>>>> item 39 key (7777157369856 EXTENT_ITEM 262144) itemoff 14046
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239739 flags DATA
> >>>>>> extent data backref root 1 objectid 4315 offset 0
> >>>>>>count 1
> >>>>>> item 40 key (7777157632000 EXTENT_ITEM 4096) itemoff 13993
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 257306 flags DATA
> >>>>>> extent data backref root 258 objectid 839874 offset
> >>>>>>1724416 count 1
> >>>>>> item 41 key (7777157636096 EXTENT_ITEM 28672) itemoff 13940
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239755 flags DATA
> >>>>>> extent data backref root 7565 objectid 218350 offset 0
> >>>>>>count 1
> >>>>>> item 42 key (7777157672960 EXTENT_ITEM 262144) itemoff 13887
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 251770 flags DATA
> >>>>>> extent data backref root 1 objectid 7446 offset 0
> >>>>>>count 1
> >>>>>> item 43 key (7777157947392 EXTENT_ITEM 12288) itemoff 13834
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 257266 flags DATA
> >>>>>> extent data backref root 258 objectid 839874 offset
> >>>>>>1716224 count 1
> >>>>>> item 44 key (7777157963776 EXTENT_ITEM 204800) itemoff 13781
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239712 flags DATA
> >>>>>> extent data backref root 7565 objectid 151704 offset 0
> >>>>>>count 1
> >>>>>> item 45 key (7777158168576 EXTENT_ITEM 8192) itemoff 13728
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239755 flags DATA
> >>>>>> extent data backref root 7565 objectid 218364 offset 0
> >>>>>>count 1
> >>>>>> item 46 key (7777158176768 EXTENT_ITEM 8192) itemoff 13675
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239734 flags DATA
> >>>>>> extent data backref root 7565 objectid 158076 offset 0
> >>>>>>count 1
> >>>>>> item 47 key (7777158184960 EXTENT_ITEM 24576) itemoff 13622
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239734 flags DATA
> >>>>>> extent data backref root 7565 objectid 158077 offset 0
> >>>>>>count 1
> >>>>>> item 48 key (7777158209536 EXTENT_ITEM 262144) itemoff 13569
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 250487 flags DATA
> >>>>>> extent data backref root 1 objectid 7042 offset 0
> >>>>>>count 1
> >>>>>> item 49 key (7777159520256 EXTENT_ITEM 868352) itemoff 13516
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 218523 flags DATA
> >>>>>> extent data backref root 258 objectid 3429613 offset 0
> >>>>>>count 1
> >>>>>> item 50 key (7777159340032 EXTENT_ITEM 262144) itemoff 13463
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 252003 flags DATA
> >>>>>> extent data backref root 1 objectid 6709 offset 0
> >>>>>>count 1
> >>>>>> item 51 key (7777159602176 EXTENT_ITEM 8192) itemoff 13410
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239734 flags DATA
> >>>>>> extent data backref root 7565 objectid 158078 offset 0
> >>>>>>count 1
> >>>>>> item 52 key (7777159610368 EXTENT_ITEM 8192) itemoff 13357
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239734 flags DATA
> >>>>>> extent data backref root 7565 objectid 158082 offset 0
> >>>>>>count 1
> >>>>>> item 53 key (7777159618560 EXTENT_ITEM 20480) itemoff 13304
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 253796 flags DATA
> >>>>>> extent data backref root 258 objectid 839874 offset
> >>>>>>1708032 count 1
> >>>>>> item 54 key (7777159770112 EXTENT_ITEM 53248) itemoff 13251
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239735 flags DATA
> >>>>>> extent data backref root 7565 objectid 180984 offset 0
> >>>>>>count 1
> >>>>>> item 55 key (7777159823360 EXTENT_ITEM 28672) itemoff 13198
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239735 flags DATA
> >>>>>> extent data backref root 7565 objectid 181027 offset 0
> >>>>>>count 1
> >>>>>> item 56 key (7777159852032 EXTENT_ITEM 20480) itemoff 13145
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239735 flags DATA
> >>>>>> extent data backref root 7565 objectid 181029 offset 0
> >>>>>>count 1
> >>>>>> item 57 key (7777159872512 EXTENT_ITEM 8192) itemoff 13092
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239736 flags DATA
> >>>>>> extent data backref root 7565 objectid 181418 offset 0
> >>>>>>count 1
> >>>>>> item 58 key (7777159880704 EXTENT_ITEM 12288) itemoff 13039
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239734 flags DATA
> >>>>>> extent data backref root 7565 objectid 158079 offset 0
> >>>>>>count 1
> >>>>>> item 59 key (7777159892992 EXTENT_ITEM 131072) itemoff 12986
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 152898 flags DATA
> >>>>>> extent data backref root 258 objectid 2111468 offset
> >>>>>>913408 count 1
> >>>>>> item 60 key (7777160024064 EXTENT_ITEM 8192) itemoff 12933
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239734 flags DATA
> >>>>>> extent data backref root 7565 objectid 158085 offset 0
> >>>>>>count 1
> >>>>>> item 61 key (7777160040448 EXTENT_ITEM 12288) itemoff 12880
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239734 flags DATA
> >>>>>> extent data backref root 7565 objectid 158081 offset 0
> >>>>>>count 1
> >>>>>> item 62 key (7777160052736 EXTENT_ITEM 16384) itemoff 12827
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239734 flags DATA
> >>>>>> extent data backref root 7565 objectid 158083 offset 0
> >>>>>>count 1
> >>>>>> item 63 key (7777160069120 EXTENT_ITEM 12288) itemoff 12774
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239734 flags DATA
> >>>>>> extent data backref root 7565 objectid 158084 offset 0
> >>>>>>count 1
> >>>>>> item 64 key (7777160081408 EXTENT_ITEM 8192) itemoff 12721
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239734 flags DATA
> >>>>>> extent data backref root 7565 objectid 158086 offset 0
> >>>>>>count 1
> >>>>>> item 65 key (7777160093696 EXTENT_ITEM 4096) itemoff 12668
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 191200 flags DATA
> >>>>>> extent data backref root 258 objectid 839874 offset
> >>>>>>1728512 count 1
> >>>>>> item 66 key (7777160097792 EXTENT_ITEM 8192) itemoff 12615
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239734 flags DATA
> >>>>>> extent data backref root 7565 objectid 158088 offset 0
> >>>>>>count 1
> >>>>>> item 67 key (7777160105984 EXTENT_ITEM 24576) itemoff 12562
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239734 flags DATA
> >>>>>> extent data backref root 7565 objectid 158090 offset 0
> >>>>>>count 1
> >>>>>> item 68 key (7777160130560 EXTENT_ITEM 16384) itemoff 12509
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239734 flags DATA
> >>>>>> extent data backref root 7565 objectid 158092 offset 0
> >>>>>>count 1
> >>>>>> item 69 key (7777160146944 EXTENT_ITEM 8192) itemoff 12456
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239734 flags DATA
> >>>>>> extent data backref root 7565 objectid 158093 offset 0
> >>>>>>count 1
> >>>>>> item 70 key (7777160155136 EXTENT_ITEM 8192) itemoff 12403
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239734 flags DATA
> >>>>>> extent data backref root 7565 objectid 158095 offset 0
> >>>>>>count 1
> >>>>>> item 71 key (7777160163328 EXTENT_ITEM 8192) itemoff 12350
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239734 flags DATA
> >>>>>> extent data backref root 7565 objectid 158099 offset 0
> >>>>>>count 1
> >>>>>> item 72 key (7777160171520 EXTENT_ITEM 8192) itemoff 12297
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 239734 flags DATA
> >>>>>> extent data backref root 7565 objectid 158101 offset 0
> >>>>>>count 1
> >>>>>> item 73 key (7777160179712 EXTENT_ITEM 32768) itemoff 12244
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 185891 flags DATA
> >>>>>> extent data backref root 7565 objectid 135098 offset 0
> >>>>>>count 1
> >>>>>> item 74 key (7777160212480 EXTENT_ITEM 9064448) itemoff 12191
> >>>>>>itemsize 53
> >>>>>> extent refs 3 gen 128804 flags DATA
> >>>>>> extent data backref root 258 objectid 1746670 offset 0
> >>>>>>count 3
> >>>>>> item 75 key (7777169276928 EXTENT_ITEM 5619712) itemoff 12138
> >>>>>>itemsize 53
> >>>>>> extent refs 4 gen 128815 flags DATA
> >>>>>> extent data backref root 258 objectid 1747043 offset 0
> >>>>>>count 4
> >>>>>> item 76 key (7777174896640 EXTENT_ITEM 49152) itemoff 12085
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 185891 flags DATA
> >>>>>> extent data backref root 7565 objectid 135087 offset 0
> >>>>>>count 1
> >>>>>> item 77 key (7777174945792 EXTENT_ITEM 268435456) itemoff
> >>>>>>12019 itemsize 66
> >>>>>> extent refs 4 gen 86553 flags DATA
> >>>>>> extent data backref root 258 objectid 1257818 offset 0
> >>>>>>count 2
> >>>>>> shared data backref parent 3804574728192 count 2
> >>>>>> item 78 key (7777174945792 BLOCK_GROUP_ITEM 1073741824)
> >>>>>>itemoff 11995 itemsize 24
> >>>>>> block group used 1073135616 chunk_objectid 256 flags
> >>>>>>DATA|RAID1
> >>>>>> item 79 key (7777443381248 EXTENT_ITEM 211255296) itemoff
> >>>>>>11929 itemsize 66
> >>>>>> extent refs 2 gen 86553 flags DATA
> >>>>>> extent data backref root 258 objectid 1257818 offset
> >>>>>>268435456 count 1
> >>>>>> shared data backref parent 3804574728192 count 1
> >>>>>> item 80 key (7777654636544 EXTENT_ITEM 268435456) itemoff
> >>>>>>11863 itemsize 66
> >>>>>> extent refs 147 gen 86553 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset 0
> >>>>>>count 101
> >>>>>> shared data backref parent 3804574728192 count 46
> >>>>>> item 81 key (7777923072000 EXTENT_ITEM 211009536) itemoff
> >>>>>>11797 itemsize 66
> >>>>>> extent refs 167 gen 86553 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>268435456 count 96
> >>>>>> shared data backref parent 5253034229760 count 71
> >>>>>> item 82 key (7778134081536 EXTENT_ITEM 4096) itemoff 11731
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 86555 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>341114880 count 1
> >>>>>> shared data backref parent 5253034229760 count 1
> >>>>>> item 83 key (7778134085632 EXTENT_ITEM 4096) itemoff 11665
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 86557 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>402767872 count 1
> >>>>>> shared data backref parent 5253034229760 count 1
> >>>>>> item 84 key (7778134089728 EXTENT_ITEM 4096) itemoff 11599
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 86560 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>13631488 count 1
> >>>>>> shared data backref parent 3804574728192 count 1
> >>>>>> item 85 key (7778134093824 EXTENT_ITEM 4096) itemoff 11533
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 86560 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>13975552 count 1
> >>>>>> shared data backref parent 3804574728192 count 1
> >>>>>> item 86 key (7778134097920 EXTENT_ITEM 4096) itemoff 11467
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 86560 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>16236544 count 1
> >>>>>> shared data backref parent 3804574728192 count 1
> >>>>>> item 87 key (7778134102016 EXTENT_ITEM 4096) itemoff 11401
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 86560 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>16351232 count 1
> >>>>>> shared data backref parent 3804574728192 count 1
> >>>>>> item 88 key (7778134106112 EXTENT_ITEM 4096) itemoff 11335
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 86564 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>406962176 count 1
> >>>>>> shared data backref parent 5253034229760 count 1
> >>>>>> item 89 key (7778134110208 EXTENT_ITEM 4096) itemoff 11269
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 86565 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>46923776 count 1
> >>>>>> shared data backref parent 3804574728192 count 1
> >>>>>> item 90 key (7778134114304 EXTENT_ITEM 4096) itemoff 11203
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 86565 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>47644672 count 1
> >>>>>> shared data backref parent 3804574728192 count 1
> >>>>>> item 91 key (7778134118400 EXTENT_ITEM 4096) itemoff 11137
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 86565 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>49020928 count 1
> >>>>>> shared data backref parent 3804574728192 count 1
> >>>>>> item 92 key (7778134122496 EXTENT_ITEM 4096) itemoff 11071
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 86565 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>49037312 count 1
> >>>>>> shared data backref parent 3804574728192 count 1
> >>>>>> item 93 key (7778134126592 EXTENT_ITEM 4096) itemoff 11018
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86565 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>180797440 count 1
> >>>>>> item 94 key (7778134130688 EXTENT_ITEM 4096) itemoff 10965
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86565 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>182140928 count 1
> >>>>>> item 95 key (7778134134784 EXTENT_ITEM 4096) itemoff 10912
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86565 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>182222848 count 1
> >>>>>> item 96 key (7778134138880 EXTENT_ITEM 4096) itemoff 10859
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86565 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>201441280 count 1
> >>>>>> item 97 key (7778134142976 EXTENT_ITEM 4096) itemoff 10806
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86565 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>205635584 count 1
> >>>>>> item 98 key (7778134147072 EXTENT_ITEM 4096) itemoff 10753
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86565 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>209829888 count 1
> >>>>>> item 99 key (7778134151168 EXTENT_ITEM 4096) itemoff 10700
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86565 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>210206720 count 1
> >>>>>> item 100 key (7778134155264 EXTENT_ITEM 4096) itemoff 10647
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86565 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>212451328 count 1
> >>>>>> item 101 key (7778134159360 EXTENT_ITEM 4096) itemoff 10594
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86565 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>212467712 count 1
> >>>>>> item 102 key (7778134163456 EXTENT_ITEM 4096) itemoff 10541
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86565 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>213712896 count 1
> >>>>>> item 103 key (7778134167552 EXTENT_ITEM 4096) itemoff 10488
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86567 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>176275456 count 1
> >>>>>> item 104 key (7778134171648 EXTENT_ITEM 4096) itemoff 10435
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86567 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>180469760 count 1
> >>>>>> item 105 key (7778134175744 EXTENT_ITEM 4096) itemoff 10369
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 86571 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>365379584 count 1
> >>>>>> shared data backref parent 5253034229760 count 1
> >>>>>> item 106 key (7778134179840 EXTENT_ITEM 4096) itemoff 10303
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 86571 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>368951296 count 1
> >>>>>> shared data backref parent 5253034229760 count 1
> >>>>>> item 107 key (7778134183936 EXTENT_ITEM 4096) itemoff 10237
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 86572 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>12697600 count 1
> >>>>>> shared data backref parent 3804574728192 count 1
> >>>>>> item 108 key (7778134188032 EXTENT_ITEM 4096) itemoff 10184
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86572 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>151109632 count 1
> >>>>>> item 109 key (7778134192128 EXTENT_ITEM 4096) itemoff 10131
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86572 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>255967232 count 1
> >>>>>> item 110 key (7778134196224 EXTENT_ITEM 4096) itemoff 10078
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86574 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>148488192 count 1
> >>>>>> item 111 key (7778134200320 EXTENT_ITEM 4096) itemoff 10025
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86574 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>148635648 count 1
> >>>>>> item 112 key (7778134204416 EXTENT_ITEM 4096) itemoff 9972
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86574 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>149684224 count 1
> >>>>>> item 113 key (7778134208512 EXTENT_ITEM 4096) itemoff 9919
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86574 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>150077440 count 1
> >>>>>> item 114 key (7778134212608 EXTENT_ITEM 4096) itemoff 9866
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86574 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>252444672 count 1
> >>>>>> item 115 key (7778134216704 EXTENT_ITEM 4096) itemoff 9813
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86574 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>252608512 count 1
> >>>>>> item 116 key (7778134220800 EXTENT_ITEM 4096) itemoff 9760
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86574 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>254263296 count 1
> >>>>>> item 117 key (7778134224896 EXTENT_ITEM 4096) itemoff 9707
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86574 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>254541824 count 1
> >>>>>> item 118 key (7778134228992 EXTENT_ITEM 4096) itemoff 9641
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 86576 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>411156480 count 1
> >>>>>> shared data backref parent 5253034229760 count 1
> >>>>>> item 119 key (7778134233088 EXTENT_ITEM 4096) itemoff 9588
> >>>>>>itemsize 53
> >>>>>> extent refs 1 gen 86577 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>297910272 count 1
> >>>>>> item 120 key (7778134237184 EXTENT_ITEM 4096) itemoff 9522
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 86577 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>>>>>411811840 count 1
> >>>>>> shared data backref parent 5253034229760 count 1
> >>>>>> item 121 key (7778134241280 EXTENT_ITEM 4096) itemoff 9456
> >>>>>>itemsize 66
> >>>>>> extent refs 2 gen 86577 flags DATA
> >>>>>> extent data backref root 258 objectid 1257819 offset
> >>
> >>
> >>
> >>--
> >>Tom Dickson-Hunt
> >
> >
> >
>
>
--
Tom Hunt
^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2016-01-22 17:10 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-01-07 4:02 Recovery of a raid1 FS Tom Hunt
2016-01-07 5:16 ` Tom Hunt
2016-01-07 6:02 ` Qu Wenruo
2016-01-08 1:43 ` Tom Hunt
2016-01-08 1:48 ` Qu Wenruo
2016-01-08 2:02 ` Tom Hunt
2016-01-08 2:26 ` Qu Wenruo
2016-01-08 3:46 ` Tom Hunt
2016-01-09 7:18 ` Tom Hunt
2016-01-11 1:50 ` Qu Wenruo
2016-01-22 17:10 ` Tom Hunt
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