From: Qu Wenruo <quwenruo@cn.fujitsu.com>
To: Tom Hunt <tomdicksonhunt@gmail.com>
Cc: <linux-btrfs@vger.kernel.org>
Subject: Re: Recovery of a raid1 FS
Date: Mon, 11 Jan 2016 09:50:48 +0800 [thread overview]
Message-ID: <56930A78.4090901@cn.fujitsu.com> (raw)
In-Reply-To: <CANevpVi+-8heRLJxF7jYgWZMTiKrzey5WxeLGWA1J16HUMtMuQ@mail.gmail.com>
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
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>>>>>> item 5 key (7777093115904 EXTENT_ITEM 4096) itemoff 15887
>>>>>> itemsize 66
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>>>>>> extent data backref root 258 objectid 1319842 offset
>>>>>> 35164160 count 1
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>>>>>> itemsize 66
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>>>>>> 37261312 count 1
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>>
>>
>>
>> --
>> Tom Dickson-Hunt
>
>
>
next prev parent reply other threads:[~2016-01-11 1:51 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
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 [this message]
2016-01-22 17:10 ` Tom Hunt
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