* runtime btrfsck @ 2017-05-02 6:29 Stefan Priebe - Profihost AG 2017-05-06 5:56 ` Stefan Priebe - Profihost AG 0 siblings, 1 reply; 16+ messages in thread From: Stefan Priebe - Profihost AG @ 2017-05-02 6:29 UTC (permalink / raw) To: linux-btrfs@vger.kernel.org Hello list, i wanted to check an fs cause it has bad key ordering. But btrfscheck is now running since 7 days. Current output: # btrfsck -p --repair /dev/mapper/crypt_md0 enabling repair mode Checking filesystem on /dev/mapper/crypt_md0 UUID: 37b15dd8-b2e1-4585-98d0-cc0fa2a5a7c9 bad key ordering 39 40 checking extents [O] FS is a 12TB BTRFS Raid 0 over 3 mdadm Raid 5 devices. How long should btrfsck run and is there any way to speed it up? btrfs tools is 4.8.5 Thanks! Greets, Stefan ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: runtime btrfsck 2017-05-02 6:29 runtime btrfsck Stefan Priebe - Profihost AG @ 2017-05-06 5:56 ` Stefan Priebe - Profihost AG 2017-05-10 7:02 ` Stefan Priebe - Profihost AG 0 siblings, 1 reply; 16+ messages in thread From: Stefan Priebe - Profihost AG @ 2017-05-06 5:56 UTC (permalink / raw) To: linux-btrfs@vger.kernel.org It's still running. Is this the normal behaviour? Is there any other way to fix the bad key ordering? Greets, Stefan Am 02.05.2017 um 08:29 schrieb Stefan Priebe - Profihost AG: > Hello list, > > i wanted to check an fs cause it has bad key ordering. > > But btrfscheck is now running since 7 days. Current output: > # btrfsck -p --repair /dev/mapper/crypt_md0 > enabling repair mode > Checking filesystem on /dev/mapper/crypt_md0 > UUID: 37b15dd8-b2e1-4585-98d0-cc0fa2a5a7c9 > bad key ordering 39 40 > checking extents [O] > > FS is a 12TB BTRFS Raid 0 over 3 mdadm Raid 5 devices. How long should > btrfsck run and is there any way to speed it up? btrfs tools is 4.8.5 > > Thanks! > > Greets, > Stefan > ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: runtime btrfsck 2017-05-06 5:56 ` Stefan Priebe - Profihost AG @ 2017-05-10 7:02 ` Stefan Priebe - Profihost AG 2017-05-10 7:18 ` Roman Mamedov ` (2 more replies) 0 siblings, 3 replies; 16+ messages in thread From: Stefan Priebe - Profihost AG @ 2017-05-10 7:02 UTC (permalink / raw) To: linux-btrfs@vger.kernel.org I'm now trying btrfs progs 4.10.2. Is anybody out there who can tell me something about the expected runtime or how to fix bad key ordering? Greets, Stefan Am 06.05.2017 um 07:56 schrieb Stefan Priebe - Profihost AG: > It's still running. Is this the normal behaviour? Is there any other way > to fix the bad key ordering? > > Greets, > Stefan > > Am 02.05.2017 um 08:29 schrieb Stefan Priebe - Profihost AG: >> Hello list, >> >> i wanted to check an fs cause it has bad key ordering. >> >> But btrfscheck is now running since 7 days. Current output: >> # btrfsck -p --repair /dev/mapper/crypt_md0 >> enabling repair mode >> Checking filesystem on /dev/mapper/crypt_md0 >> UUID: 37b15dd8-b2e1-4585-98d0-cc0fa2a5a7c9 >> bad key ordering 39 40 >> checking extents [O] >> >> FS is a 12TB BTRFS Raid 0 over 3 mdadm Raid 5 devices. How long should >> btrfsck run and is there any way to speed it up? btrfs tools is 4.8.5 >> >> Thanks! >> >> Greets, >> Stefan >> ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: runtime btrfsck 2017-05-10 7:02 ` Stefan Priebe - Profihost AG @ 2017-05-10 7:18 ` Roman Mamedov 2017-05-10 7:36 ` Stefan Priebe - Profihost AG 2017-05-10 7:24 ` Marat Khalili 2017-05-10 7:48 ` Martin Steigerwald 2 siblings, 1 reply; 16+ messages in thread From: Roman Mamedov @ 2017-05-10 7:18 UTC (permalink / raw) To: Stefan Priebe - Profihost AG; +Cc: linux-btrfs@vger.kernel.org On Wed, 10 May 2017 09:02:46 +0200 Stefan Priebe - Profihost AG <s.priebe@profihost.ag> wrote: > how to fix bad key ordering? You should clarify does the FS in question mount (read-write? read-only?) and what are the kernel messages if it does not. -- With respect, Roman ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: runtime btrfsck 2017-05-10 7:18 ` Roman Mamedov @ 2017-05-10 7:36 ` Stefan Priebe - Profihost AG 2017-05-10 7:40 ` Hugo Mills 0 siblings, 1 reply; 16+ messages in thread From: Stefan Priebe - Profihost AG @ 2017-05-10 7:36 UTC (permalink / raw) To: Roman Mamedov; +Cc: linux-btrfs@vger.kernel.org Hello Roman, the FS is mountable. It just goes readonly when trying to write some data. The kernel msgs are: BTRFS critical (device dm-2): corrupt leaf, bad key order: block=163316514816,root=1, slot=39 BTRFS critical (device dm-2): corrupt leaf, bad key order: block=163322413056,root=1, slot=74 BTRFS critical (device dm-2): corrupt leaf, bad key order: block=163325722624,root=1, slot=63 BTRFS critical (device dm-2): corrupt leaf, bad key order: block=163316514816,root=1, slot=39 BTRFS: error (device dm-2) in btrfs_drop_snapshot:8839: errno=-5 IO failure BTRFS info (device dm-2): forced readonly BTRFS info (device dm-2): delayed_refs has NO entry Greets, Stefan Am 10.05.2017 um 09:18 schrieb Roman Mamedov: > On Wed, 10 May 2017 09:02:46 +0200 > Stefan Priebe - Profihost AG <s.priebe@profihost.ag> wrote: > >> how to fix bad key ordering? > > You should clarify does the FS in question mount (read-write? read-only?) > and what are the kernel messages if it does not. > ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: runtime btrfsck 2017-05-10 7:36 ` Stefan Priebe - Profihost AG @ 2017-05-10 7:40 ` Hugo Mills 2017-05-10 8:40 ` Stefan Priebe - Profihost AG 0 siblings, 1 reply; 16+ messages in thread From: Hugo Mills @ 2017-05-10 7:40 UTC (permalink / raw) To: Stefan Priebe - Profihost AG; +Cc: Roman Mamedov, linux-btrfs@vger.kernel.org [-- Attachment #1: Type: text/plain, Size: 1475 bytes --] On Wed, May 10, 2017 at 09:36:30AM +0200, Stefan Priebe - Profihost AG wrote: > Hello Roman, > > the FS is mountable. It just goes readonly when trying to write some data. > > The kernel msgs are: > BTRFS critical (device dm-2): corrupt leaf, bad key order: > block=163316514816,root=1, slot=39 > BTRFS critical (device dm-2): corrupt leaf, bad key order: > block=163322413056,root=1, slot=74 > BTRFS critical (device dm-2): corrupt leaf, bad key order: > block=163325722624,root=1, slot=63 > BTRFS critical (device dm-2): corrupt leaf, bad key order: > block=163316514816,root=1, slot=39 > BTRFS: error (device dm-2) in btrfs_drop_snapshot:8839: errno=-5 IO failure > BTRFS info (device dm-2): forced readonly > BTRFS info (device dm-2): delayed_refs has NO entry Can you show the output of btrfs-debug-tree -b <blocknum>, where <blocknum> is each of the three "block=" values above? Hugo. > Greets, > Stefan > Am 10.05.2017 um 09:18 schrieb Roman Mamedov: > > On Wed, 10 May 2017 09:02:46 +0200 > > Stefan Priebe - Profihost AG <s.priebe@profihost.ag> wrote: > > > >> how to fix bad key ordering? > > > > You should clarify does the FS in question mount (read-write? read-only?) > > and what are the kernel messages if it does not. > > -- Hugo Mills | Welcome to Hollywood, a land just off the coast of hugo@... carfax.org.uk | Planet Earth http://carfax.org.uk/ | PGP: E2AB1DE4 | The Cat's Meow [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 836 bytes --] ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: runtime btrfsck 2017-05-10 7:40 ` Hugo Mills @ 2017-05-10 8:40 ` Stefan Priebe - Profihost AG 2017-05-10 9:08 ` Hugo Mills 0 siblings, 1 reply; 16+ messages in thread From: Stefan Priebe - Profihost AG @ 2017-05-10 8:40 UTC (permalink / raw) To: Hugo Mills, Roman Mamedov, linux-btrfs@vger.kernel.org Am 10.05.2017 um 09:40 schrieb Hugo Mills: > On Wed, May 10, 2017 at 09:36:30AM +0200, Stefan Priebe - Profihost AG wrote: >> Hello Roman, >> >> the FS is mountable. It just goes readonly when trying to write some data. >> >> The kernel msgs are: >> BTRFS critical (device dm-2): corrupt leaf, bad key order: >> block=163316514816,root=1, slot=39 >> BTRFS critical (device dm-2): corrupt leaf, bad key order: >> block=163322413056,root=1, slot=74 >> BTRFS critical (device dm-2): corrupt leaf, bad key order: >> block=163325722624,root=1, slot=63 >> BTRFS critical (device dm-2): corrupt leaf, bad key order: >> block=163316514816,root=1, slot=39 >> BTRFS: error (device dm-2) in btrfs_drop_snapshot:8839: errno=-5 IO failure >> BTRFS info (device dm-2): forced readonly >> BTRFS info (device dm-2): delayed_refs has NO entry > > Can you show the output of btrfs-debug-tree -b <blocknum>, where > <blocknum> is each of the three "block=" values above? Can do that. But the lists are very long - should i upload them to pastebin? Is it ok to remove the name atribute - which provides filenames? Stefan > Hugo. > >> Greets, >> Stefan >> Am 10.05.2017 um 09:18 schrieb Roman Mamedov: >>> On Wed, 10 May 2017 09:02:46 +0200 >>> Stefan Priebe - Profihost AG <s.priebe@profihost.ag> wrote: >>> >>>> how to fix bad key ordering? >>> >>> You should clarify does the FS in question mount (read-write? read-only?) >>> and what are the kernel messages if it does not. >>> > ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: runtime btrfsck 2017-05-10 8:40 ` Stefan Priebe - Profihost AG @ 2017-05-10 9:08 ` Hugo Mills 2017-05-10 9:20 ` Stefan Priebe - Profihost AG 0 siblings, 1 reply; 16+ messages in thread From: Hugo Mills @ 2017-05-10 9:08 UTC (permalink / raw) To: Stefan Priebe - Profihost AG; +Cc: Roman Mamedov, linux-btrfs@vger.kernel.org [-- Attachment #1: Type: text/plain, Size: 2116 bytes --] On Wed, May 10, 2017 at 10:40:31AM +0200, Stefan Priebe - Profihost AG wrote: > Am 10.05.2017 um 09:40 schrieb Hugo Mills: > > On Wed, May 10, 2017 at 09:36:30AM +0200, Stefan Priebe - Profihost AG wrote: > >> Hello Roman, > >> > >> the FS is mountable. It just goes readonly when trying to write some data. > >> > >> The kernel msgs are: > >> BTRFS critical (device dm-2): corrupt leaf, bad key order: > >> block=163316514816,root=1, slot=39 > >> BTRFS critical (device dm-2): corrupt leaf, bad key order: > >> block=163322413056,root=1, slot=74 > >> BTRFS critical (device dm-2): corrupt leaf, bad key order: > >> block=163325722624,root=1, slot=63 > >> BTRFS critical (device dm-2): corrupt leaf, bad key order: > >> block=163316514816,root=1, slot=39 > >> BTRFS: error (device dm-2) in btrfs_drop_snapshot:8839: errno=-5 IO failure > >> BTRFS info (device dm-2): forced readonly > >> BTRFS info (device dm-2): delayed_refs has NO entry > > > > Can you show the output of btrfs-debug-tree -b <blocknum>, where > > <blocknum> is each of the three "block=" values above? > > Can do that. But the lists are very long - should i upload them to > pastebin? Is it ok to remove the name atribute - which provides filenames? On the mailing list would be preferable, as then the conversation is completely preserved in archives. They shouldn't be so long that vger rejects them. And yes, if you want to filter out the filenames, do so (but _just_ the filename -- don't remove the whole line). Hugo. > Stefan > > > > Hugo. > > > >> Greets, > >> Stefan > >> Am 10.05.2017 um 09:18 schrieb Roman Mamedov: > >>> On Wed, 10 May 2017 09:02:46 +0200 > >>> Stefan Priebe - Profihost AG <s.priebe@profihost.ag> wrote: > >>> > >>>> how to fix bad key ordering? > >>> > >>> You should clarify does the FS in question mount (read-write? read-only?) > >>> and what are the kernel messages if it does not. > >>> > > -- Hugo Mills | Alert status mauve ocelot: Slight chance of hugo@... carfax.org.uk | brimstone. Be prepared to make a nice cup of tea. http://carfax.org.uk/ | PGP: E2AB1DE4 | [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 836 bytes --] ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: runtime btrfsck 2017-05-10 9:08 ` Hugo Mills @ 2017-05-10 9:20 ` Stefan Priebe - Profihost AG 2017-05-10 9:54 ` Hugo Mills 0 siblings, 1 reply; 16+ messages in thread From: Stefan Priebe - Profihost AG @ 2017-05-10 9:20 UTC (permalink / raw) To: Hugo Mills, Roman Mamedov, linux-btrfs@vger.kernel.org Hello, here's the output: # for block in 163316514816 163322413056 163325722624; do echo $block; btrfs-debug-tree -b $block /dev/mapper/crypt_md0|sed -re 's/(\t| )name: .*/\1name: HIDDEN/'; done 163316514816 btrfs-progs v4.8.5 leaf 163316514816 items 188 free space 1387 generation 86739 owner 3892 fs uuid 37b15dd8-b2e1-4585-98d0-cc0fa2a5a7c9 chunk uuid b86efe94-ab40-4344-ac6b-46ec59c41b8f item 0 key (23760 DIR_ITEM 2479948887) itemoff 16229 itemsize 54 location key (26923382 INODE_ITEM 0) type FILE transid 74009 data_len 0 name_len 24 name: HIDDEN item 1 key (23760 DIR_ITEM 2652742785) itemoff 16170 itemsize 59 location key (28124230 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 29 name: HIDDEN item 2 key (23760 DIR_ITEM 2688971413) itemoff 16119 itemsize 51 location key (26923386 INODE_ITEM 0) type FILE transid 74009 data_len 0 name_len 21 name: HIDDEN item 3 key (23760 DIR_ITEM 2764880658) itemoff 16064 itemsize 55 location key (26923399 INODE_ITEM 0) type FILE transid 74009 data_len 0 name_len 25 name: HIDDEN item 4 key (23760 DIR_ITEM 2805527189) itemoff 16006 itemsize 58 location key (28124233 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 28 name: HIDDEN item 5 key (23760 DIR_ITEM 2876464375) itemoff 15957 itemsize 49 location key (26923393 INODE_ITEM 0) type FILE transid 74009 data_len 0 name_len 19 name: HIDDEN item 6 key (23760 DIR_ITEM 2951059296) itemoff 15907 itemsize 50 location key (28124218 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 20 name: HIDDEN item 7 key (23760 DIR_ITEM 3058144963) itemoff 15859 itemsize 48 location key (26923384 INODE_ITEM 0) type FILE transid 74009 data_len 0 name_len 18 name: HIDDEN item 8 key (23760 DIR_ITEM 3095440808) itemoff 15804 itemsize 55 location key (26923394 INODE_ITEM 0) type FILE transid 74009 data_len 0 name_len 25 name: HIDDEN item 9 key (23760 DIR_ITEM 3124573416) itemoff 15748 itemsize 56 location key (26923387 INODE_ITEM 0) type FILE transid 74009 data_len 0 name_len 26 name: HIDDEN item 10 key (23760 DIR_ITEM 3194204932) itemoff 15690 itemsize 58 location key (26923397 INODE_ITEM 0) type FILE transid 74009 data_len 0 name_len 28 name: HIDDEN item 11 key (23760 DIR_ITEM 3281114395) itemoff 15637 itemsize 53 location key (26923388 INODE_ITEM 0) type FILE transid 74009 data_len 0 name_len 23 name: HIDDEN item 12 key (23760 DIR_ITEM 3353597736) itemoff 15588 itemsize 49 location key (24944 INODE_ITEM 0) type FILE transid 10694 data_len 0 name_len 19 name: HIDDEN item 13 key (23760 DIR_ITEM 3389003195) itemoff 15539 itemsize 49 location key (28124226 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 19 name: HIDDEN item 14 key (23760 DIR_ITEM 3461310858) itemoff 15473 itemsize 66 location key (26923392 INODE_ITEM 0) type FILE transid 74009 data_len 0 name_len 36 name: HIDDEN item 15 key (23760 DIR_ITEM 3660173809) itemoff 15422 itemsize 51 location key (28124225 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 21 name: HIDDEN item 16 key (23760 DIR_ITEM 3678308711) itemoff 15371 itemsize 51 location key (28124220 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 21 name: HIDDEN item 17 key (23760 DIR_ITEM 3708519009) itemoff 15316 itemsize 55 location key (28124224 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 25 name: HIDDEN item 18 key (23760 DIR_ITEM 3716314603) itemoff 15258 itemsize 58 location key (26923396 INODE_ITEM 0) type FILE transid 74009 data_len 0 name_len 28 name: HIDDEN item 19 key (23760 DIR_ITEM 3958443109) itemoff 15224 itemsize 34 location key (24016 INODE_ITEM 0) type DIR transid 10693 data_len 0 name_len 4 name: HIDDEN item 20 key (23760 DIR_INDEX 2) itemoff 15190 itemsize 34 location key (24016 INODE_ITEM 0) type DIR transid 10693 data_len 0 name_len 4 name: HIDDEN item 21 key (23760 DIR_INDEX 20) itemoff 15141 itemsize 49 location key (24944 INODE_ITEM 0) type FILE transid 10694 data_len 0 name_len 19 name: HIDDEN item 22 key (23760 DIR_INDEX 21) itemoff 15087 itemsize 54 location key (28124217 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 24 name: HIDDEN item 23 key (23760 DIR_INDEX 22) itemoff 15037 itemsize 50 location key (28124218 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 20 name: HIDDEN item 24 key (23760 DIR_INDEX 23) itemoff 14989 itemsize 48 location key (28124219 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 18 name: HIDDEN item 25 key (23760 DIR_INDEX 24) itemoff 14938 itemsize 51 location key (28124220 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 21 name: HIDDEN item 26 key (23760 DIR_INDEX 25) itemoff 14887 itemsize 51 location key (28124221 INODE_ITEM 0) type FILE transid 86739 data_len 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itemoff 14508 itemsize 49 location key (28124228 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 19 name: HIDDEN item 34 key (23760 DIR_INDEX 33) itemoff 14453 itemsize 55 location key (28124229 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 25 name: HIDDEN item 35 key (23760 DIR_INDEX 34) itemoff 14394 itemsize 59 location key (28124230 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 29 name: HIDDEN item 36 key (23760 DIR_INDEX 35) itemoff 14336 itemsize 58 location key (28124231 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 28 name: HIDDEN item 37 key (23760 DIR_INDEX 36) itemoff 14278 itemsize 58 location key (28124232 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 28 name: HIDDEN item 38 key (23760 DIR_INDEX 37) itemoff 14220 itemsize 58 location key (28124233 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 28 name: HIDDEN item 39 key (23760 DIR_INDEX 38) itemoff 14165 itemsize 55 location key (28124234 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 25 name: HIDDEN item 40 key (23760 DIR_INDEX 22) itemoff 14115 itemsize 50 location key (26923383 INODE_ITEM 0) type FILE transid 74009 data_len 0 name_len 20 name: HIDDEN item 41 key (23760 DIR_INDEX 23) itemoff 14067 itemsize 48 location key (26923384 INODE_ITEM 0) type FILE transid 74009 data_len 0 name_len 18 name: HIDDEN item 42 key (23760 DIR_INDEX 24) itemoff 14016 itemsize 51 location key (26923385 INODE_ITEM 0) type FILE transid 74009 data_len 0 name_len 21 name: HIDDEN item 43 key (23760 DIR_INDEX 25) itemoff 13965 itemsize 51 location key (26923386 INODE_ITEM 0) type FILE transid 74009 data_len 0 name_len 21 name: HIDDEN item 44 key (23760 DIR_INDEX 26) itemoff 13909 itemsize 56 location key (26923387 INODE_ITEM 0) type FILE transid 74009 data_len 0 name_len 26 name: HIDDEN item 45 key (23760 DIR_INDEX 27) itemoff 13856 itemsize 53 location key (26923388 INODE_ITEM 0) type FILE transid 74009 data_len 0 name_len 23 name: HIDDEN item 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size 1904 nbytes 1904 block group 0 mode 100644 links 1 uid 1643 gid 2645 rdev 0 sequence 0 flags 0x17(none) atime 1489779504.661597490 (2017-03-17 20:38:24) ctime 1489779504.661597490 (2017-03-17 20:38:24) mtime 1489597200.263386674 (2017-03-15 18:00:00) otime 1479206766.35361134 (2016-11-15 11:46:06) item 112 key (24024 INODE_REF 23032) itemoff 3759 itemsize 28 inode ref index 7 namelen 18 name: HIDDEN 163325722624 btrfs-progs v4.8.5 leaf 163325722624 items 78 free space 6563 generation 86739 owner 3892 fs uuid 37b15dd8-b2e1-4585-98d0-cc0fa2a5a7c9 chunk uuid b86efe94-ab40-4344-ac6b-46ec59c41b8f item 0 key (24184 INODE_ITEM 0) itemoff 16123 itemsize 160 inode generation 10693 transid 81389 size 367 nbytes 367 block group 0 mode 100644 links 1 uid 1643 gid 2645 rdev 0 sequence 0 flags 0x17(none) atime 1489779537.385296959 (2017-03-17 20:38:57) ctime 1489779537.385296959 (2017-03-17 20:38:57) mtime 1489597200.311386560 (2017-03-15 18:00:00) otime 1479206768.67335662 (2016-11-15 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generation 10693 transid 81389 size 209 nbytes 209 block group 0 mode 100644 links 1 uid 1643 gid 2645 rdev 0 sequence 0 flags 0x17(none) atime 1489779537.449296371 (2017-03-17 20:38:57) ctime 1489779537.449296371 (2017-03-17 20:38:57) mtime 1489597200.335386503 (2017-03-15 18:00:00) otime 1479206768.91335361 (2016-11-15 11:46:08) item 7 key (24186 INODE_REF 23135) itemoff 14828 itemsize 19 inode ref index 50 namelen 9 name: HIDDEN item 8 key (24186 EXTENT_DATA 0) itemoff 14598 itemsize 230 generation 81389 type 0 (inline) inline extent data size 209 ram_bytes 209 compression 0 (none) item 9 key (24187 INODE_ITEM 0) itemoff 14438 itemsize 160 inode generation 10693 transid 81389 size 1052 nbytes 1052 block group 0 mode 100644 links 1 uid 1643 gid 2645 rdev 0 sequence 0 flags 0x17(none) atime 1489779537.477296114 (2017-03-17 20:38:57) ctime 1489779537.477296114 (2017-03-17 20:38:57) mtime 1489597200.311386560 (2017-03-15 18:00:00) otime 1479206768.95335310 (2016-11-15 11:46:08) item 10 key (24187 INODE_REF 23135) itemoff 14416 itemsize 22 inode ref index 51 namelen 12 name: HIDDEN item 11 key (24187 EXTENT_DATA 0) itemoff 13370 itemsize 1046 generation 81389 type 0 (inline) inline extent data size 1025 ram_bytes 1052 compression 1 (zlib) item 12 key (24188 INODE_ITEM 0) itemoff 13210 itemsize 160 inode generation 10693 transid 81389 size 881 nbytes 881 block group 0 mode 100644 links 1 uid 1643 gid 2645 rdev 0 sequence 0 flags 0x17(none) atime 1489779537.513295783 (2017-03-17 20:38:57) ctime 1489779537.513295783 (2017-03-17 20:38:57) mtime 1489597200.311386560 (2017-03-15 18:00:00) otime 1479206768.99335260 (2016-11-15 11:46:08) item 13 key (24188 INODE_REF 23135) itemoff 13190 itemsize 20 inode ref index 52 namelen 10 name: HIDDEN item 14 key (24188 EXTENT_DATA 0) itemoff 12288 itemsize 902 generation 81389 type 0 (inline) inline extent data size 881 ram_bytes 881 compression 0 (none) item 15 key (24189 INODE_ITEM 0) itemoff 12128 itemsize 160 inode generation 10693 transid 86739 size 1802 nbytes 0 block group 0 mode 40755 links 1 uid 1643 gid 2645 rdev 0 sequence 0 flags 0xb5(none) atime 1488554108.183772218 (2017-03-03 16:15:08) ctime 1491160502.146097582 (2017-04-02 21:15:02) mtime 1491160502.146097582 (2017-04-02 21:15:02) otime 1479206768.99335260 (2016-11-15 11:46:08) item 16 key (24189 INODE_REF 23765) itemoff 12114 itemsize 14 inode ref index 2 namelen 4 name: HIDDEN item 17 key (24189 DIR_ITEM 46664211) itemoff 12052 itemsize 62 location key (28124261 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 32 name: HIDDEN item 18 key (24189 DIR_ITEM 213870030) itemoff 11988 itemsize 64 location key (28124267 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 34 name: HIDDEN item 19 key (24189 DIR_ITEM 233401760) itemoff 11928 itemsize 60 location key (26923422 INODE_ITEM 0) type FILE transid 74010 data_len 0 name_len 30 name: HIDDEN item 20 key (24189 DIR_ITEM 537614813) itemoff 11875 itemsize 53 location key (26923421 INODE_ITEM 0) type FILE transid 74010 data_len 0 name_len 23 name: HIDDEN item 21 key (24189 DIR_ITEM 641206763) itemoff 11816 itemsize 59 location key (28124265 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 29 name: HIDDEN item 22 key (24189 DIR_ITEM 668165067) itemoff 11757 itemsize 59 location key (28124258 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 29 name: HIDDEN item 23 key (24189 DIR_ITEM 756186210) itemoff 11697 itemsize 60 location key (26923434 INODE_ITEM 0) type FILE transid 74010 data_len 0 name_len 30 name: HIDDEN item 24 key (24189 DIR_ITEM 861690622) itemoff 11632 itemsize 65 location key (28124266 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 35 name: HIDDEN item 25 key (24189 DIR_ITEM 915017506) itemoff 11571 itemsize 61 location key (28124254 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 31 name: HIDDEN item 26 key (24189 DIR_ITEM 1053847139) itemoff 11514 itemsize 57 location key (28124257 INODE_ITEM 0) type FILE transid 86739 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name: HIDDEN item 58 key (24189 DIR_INDEX 12) itemoff 9657 itemsize 64 location key (28124263 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 34 name: HIDDEN item 59 key (24189 DIR_INDEX 13) itemoff 9597 itemsize 60 location key (28124264 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 30 name: HIDDEN item 60 key (24189 DIR_INDEX 14) itemoff 9538 itemsize 59 location key (28124265 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 29 name: HIDDEN item 61 key (24189 DIR_INDEX 15) itemoff 9473 itemsize 65 location key (28124266 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 35 name: HIDDEN item 62 key (24189 DIR_INDEX 16) itemoff 9409 itemsize 64 location key (28124267 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 34 name: HIDDEN item 63 key (24189 DIR_INDEX 17) itemoff 9349 itemsize 60 location key (28124268 INODE_ITEM 0) type FILE transid 86739 data_len 0 name_len 30 name: HIDDEN item 64 key (24189 DIR_INDEX 4) itemoff 9296 itemsize 53 location key (26923421 INODE_ITEM 0) type FILE transid 74010 data_len 0 name_len 23 name: HIDDEN item 65 key (24189 DIR_INDEX 5) itemoff 9236 itemsize 60 location key (26923422 INODE_ITEM 0) type FILE transid 74010 data_len 0 name_len 30 name: HIDDEN item 66 key (24189 DIR_INDEX 6) itemoff 9179 itemsize 57 location key (26923423 INODE_ITEM 0) type FILE transid 74010 data_len 0 name_len 27 name: HIDDEN item 67 key (24189 DIR_INDEX 7) itemoff 9120 itemsize 59 location key (26923424 INODE_ITEM 0) type FILE transid 74010 data_len 0 name_len 29 name: HIDDEN item 68 key (24189 DIR_INDEX 8) itemoff 9061 itemsize 59 location key (26923425 INODE_ITEM 0) type FILE transid 74010 data_len 0 name_len 29 name: HIDDEN item 69 key (24189 DIR_INDEX 9) itemoff 9002 itemsize 59 location key (26923426 INODE_ITEM 0) type FILE transid 74010 data_len 0 name_len 29 name: HIDDEN item 70 key (24189 DIR_INDEX 10) itemoff 8940 itemsize 62 location key (26923427 INODE_ITEM 0) type FILE transid 74010 data_len 0 name_len 32 name: HIDDEN item 71 key (24189 DIR_INDEX 11) itemoff 8885 itemsize 55 location key (26923428 INODE_ITEM 0) type FILE transid 74010 data_len 0 name_len 25 name: HIDDEN item 72 key (24189 DIR_INDEX 12) itemoff 8821 itemsize 64 location key (26923429 INODE_ITEM 0) type FILE transid 74010 data_len 0 name_len 34 name: HIDDEN item 73 key (24189 DIR_INDEX 13) itemoff 8761 itemsize 60 location key (26923430 INODE_ITEM 0) type FILE transid 74010 data_len 0 name_len 30 name: HIDDEN item 74 key (24189 DIR_INDEX 14) itemoff 8702 itemsize 59 location key (26923431 INODE_ITEM 0) type FILE transid 74010 data_len 0 name_len 29 name: HIDDEN item 75 key (24189 DIR_INDEX 15) itemoff 8637 itemsize 65 location key (26923432 INODE_ITEM 0) type FILE transid 74010 data_len 0 name_len 35 name: HIDDEN item 76 key (24189 DIR_INDEX 16) itemoff 8573 itemsize 64 location key (26923433 INODE_ITEM 0) type FILE transid 74010 data_len 0 name_len 34 name: HIDDEN item 77 key (24189 DIR_INDEX 17) itemoff 8513 itemsize 60 location key (26923434 INODE_ITEM 0) type FILE transid 74010 data_len 0 name_len 30 name: HIDDEN Stefan Am 10.05.2017 um 11:08 schrieb Hugo Mills: > On Wed, May 10, 2017 at 10:40:31AM +0200, Stefan Priebe - Profihost AG wrote: >> Am 10.05.2017 um 09:40 schrieb Hugo Mills: >>> On Wed, May 10, 2017 at 09:36:30AM +0200, Stefan Priebe - Profihost AG wrote: >>>> Hello Roman, >>>> >>>> the FS is mountable. It just goes readonly when trying to write some data. >>>> >>>> The kernel msgs are: >>>> BTRFS critical (device dm-2): corrupt leaf, bad key order: >>>> block=163316514816,root=1, slot=39 >>>> BTRFS critical (device dm-2): corrupt leaf, bad key order: >>>> block=163322413056,root=1, slot=74 >>>> BTRFS critical (device dm-2): corrupt leaf, bad key order: >>>> block=163325722624,root=1, slot=63 >>>> BTRFS critical (device dm-2): corrupt leaf, bad key order: >>>> block=163316514816,root=1, slot=39 >>>> BTRFS: error (device dm-2) in btrfs_drop_snapshot:8839: errno=-5 IO failure >>>> BTRFS info (device dm-2): forced readonly >>>> BTRFS info (device dm-2): delayed_refs has NO entry >>> >>> Can you show the output of btrfs-debug-tree -b <blocknum>, where >>> <blocknum> is each of the three "block=" values above? >> >> Can do that. But the lists are very long - should i upload them to >> pastebin? Is it ok to remove the name atribute - which provides filenames? > > On the mailing list would be preferable, as then the conversation > is completely preserved in archives. They shouldn't be so long that > vger rejects them. And yes, if you want to filter out the filenames, > do so (but _just_ the filename -- don't remove the whole line). > > Hugo. > >> Stefan >> >> >>> Hugo. >>> >>>> Greets, >>>> Stefan >>>> Am 10.05.2017 um 09:18 schrieb Roman Mamedov: >>>>> On Wed, 10 May 2017 09:02:46 +0200 >>>>> Stefan Priebe - Profihost AG <s.priebe@profihost.ag> wrote: >>>>> >>>>>> how to fix bad key ordering? >>>>> >>>>> You should clarify does the FS in question mount (read-write? read-only?) >>>>> and what are the kernel messages if it does not. >>>>> >>> > ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: runtime btrfsck 2017-05-10 9:20 ` Stefan Priebe - Profihost AG @ 2017-05-10 9:54 ` Hugo Mills 2017-05-10 11:23 ` Stefan Priebe - Profihost AG 0 siblings, 1 reply; 16+ messages in thread From: Hugo Mills @ 2017-05-10 9:54 UTC (permalink / raw) To: Stefan Priebe - Profihost AG; +Cc: Roman Mamedov, linux-btrfs@vger.kernel.org [-- Attachment #1: Type: text/plain, Size: 7051 bytes --] On Wed, May 10, 2017 at 11:20:58AM +0200, Stefan Priebe - Profihost AG wrote: > Hello, > > here's the output: > # for block in 163316514816 163322413056 163325722624; do echo $block; > btrfs-debug-tree -b $block /dev/mapper/crypt_md0|sed -re 's/(\t| )name: > .*/\1name: HIDDEN/'; done > > 163316514816 > btrfs-progs v4.8.5 > leaf 163316514816 items 188 free space 1387 generation 86739 owner 3892 > fs uuid 37b15dd8-b2e1-4585-98d0-cc0fa2a5a7c9 > chunk uuid b86efe94-ab40-4344-ac6b-46ec59c41b8f [...] > item 37 key (23760 DIR_INDEX 36) itemoff 14278 itemsize 58 > location key (28124232 INODE_ITEM 0) type FILE > transid 86739 data_len 0 name_len 28 > name: HIDDEN > item 38 key (23760 DIR_INDEX 37) itemoff 14220 itemsize 58 > location key (28124233 INODE_ITEM 0) type FILE > transid 86739 data_len 0 name_len 28 > name: HIDDEN > item 39 key (23760 DIR_INDEX 38) itemoff 14165 itemsize 55 > location key (28124234 INODE_ITEM 0) type FILE > transid 86739 data_len 0 name_len 25 > name: HIDDEN > item 40 key (23760 DIR_INDEX 22) itemoff 14115 itemsize 50 > location key (26923383 INODE_ITEM 0) type FILE > transid 74009 data_len 0 name_len 20 > name: HIDDEN > item 41 key (23760 DIR_INDEX 23) itemoff 14067 itemsize 48 > location key (26923384 INODE_ITEM 0) type FILE > transid 74009 data_len 0 name_len 18 > name: HIDDEN [...] > 163322413056 > btrfs-progs v4.8.5 > leaf 163322413056 items 113 free space 934 generation 86739 owner 3892 > fs uuid 37b15dd8-b2e1-4585-98d0-cc0fa2a5a7c9 > chunk uuid b86efe94-ab40-4344-ac6b-46ec59c41b8f [...] > item 73 key (24016 DIR_INDEX 19) itemoff 9651 itemsize 62 > location key (28124251 INODE_ITEM 0) type FILE > transid 86739 data_len 0 name_len 32 > name: HIDDEN > item 74 key (24016 DIR_INDEX 20) itemoff 9592 itemsize 59 > location key (28124252 INODE_ITEM 0) type FILE > transid 86739 data_len 0 name_len 29 > name: HIDDEN > item 75 key (24016 DIR_INDEX 4) itemoff 9538 itemsize 54 > location key (26923401 INODE_ITEM 0) type FILE > transid 74009 data_len 0 name_len 24 > name: HIDDEN > item 76 key (24016 DIR_INDEX 5) itemoff 9486 itemsize 52 > location key (26923402 INODE_ITEM 0) type FILE > transid 74009 data_len 0 name_len 22 > name: HIDDEN [...] > 163325722624 > btrfs-progs v4.8.5 > leaf 163325722624 items 78 free space 6563 generation 86739 owner 3892 > fs uuid 37b15dd8-b2e1-4585-98d0-cc0fa2a5a7c9 > chunk uuid b86efe94-ab40-4344-ac6b-46ec59c41b8f [...] > item 62 key (24189 DIR_INDEX 16) itemoff 9409 itemsize 64 > location key (28124267 INODE_ITEM 0) type FILE > transid 86739 data_len 0 name_len 34 > name: HIDDEN > item 63 key (24189 DIR_INDEX 17) itemoff 9349 itemsize 60 > location key (28124268 INODE_ITEM 0) type FILE > transid 86739 data_len 0 name_len 30 > name: HIDDEN > item 64 key (24189 DIR_INDEX 4) itemoff 9296 itemsize 53 > location key (26923421 INODE_ITEM 0) type FILE > transid 74010 data_len 0 name_len 23 > name: HIDDEN > item 65 key (24189 DIR_INDEX 5) itemoff 9236 itemsize 60 > location key (26923422 INODE_ITEM 0) type FILE > transid 74010 data_len 0 name_len 30 > name: HIDDEN [...] In each case, the tree node keys have simply been sorted incorrectly -- the ordering is otherwise correct, but jumps backwards at some point in the sequence. At least in the first instance, some of the keys appear to have been duplicated: there are two (23760 DIR_INDEX 22) keys in the list. (I didn't check in detail with the other two whether there are duplicates, but I wouldn't be surprised). I note that the jump in the keys in the first two cases is 16, and the jump in the third case is 13. That _might_ suggest some kind of bit-level error, but it's probably not in the RAM that was used to store the blocks, as the error appears in a different place in each block. I'm tentatively going to point the finger at your hardware for this. It's probably going to need something really long and/or stressful to pick it up, though (one of the CPU stress tests, for example, and also a good long run with a RAM tester -- 24 hours or longer). Hugo. > Stefan > Am 10.05.2017 um 11:08 schrieb Hugo Mills: > > On Wed, May 10, 2017 at 10:40:31AM +0200, Stefan Priebe - Profihost AG wrote: > >> Am 10.05.2017 um 09:40 schrieb Hugo Mills: > >>> On Wed, May 10, 2017 at 09:36:30AM +0200, Stefan Priebe - Profihost AG wrote: > >>>> Hello Roman, > >>>> > >>>> the FS is mountable. It just goes readonly when trying to write some data. > >>>> > >>>> The kernel msgs are: > >>>> BTRFS critical (device dm-2): corrupt leaf, bad key order: > >>>> block=163316514816,root=1, slot=39 > >>>> BTRFS critical (device dm-2): corrupt leaf, bad key order: > >>>> block=163322413056,root=1, slot=74 > >>>> BTRFS critical (device dm-2): corrupt leaf, bad key order: > >>>> block=163325722624,root=1, slot=63 > >>>> BTRFS critical (device dm-2): corrupt leaf, bad key order: > >>>> block=163316514816,root=1, slot=39 > >>>> BTRFS: error (device dm-2) in btrfs_drop_snapshot:8839: errno=-5 IO failure > >>>> BTRFS info (device dm-2): forced readonly > >>>> BTRFS info (device dm-2): delayed_refs has NO entry > >>> > >>> Can you show the output of btrfs-debug-tree -b <blocknum>, where > >>> <blocknum> is each of the three "block=" values above? > >> > >> Can do that. But the lists are very long - should i upload them to > >> pastebin? Is it ok to remove the name atribute - which provides filenames? > > > > On the mailing list would be preferable, as then the conversation > > is completely preserved in archives. They shouldn't be so long that > > vger rejects them. And yes, if you want to filter out the filenames, > > do so (but _just_ the filename -- don't remove the whole line). > > > > Hugo. > > > >> Stefan > >> > >> > >>> Hugo. > >>> > >>>> Greets, > >>>> Stefan > >>>> Am 10.05.2017 um 09:18 schrieb Roman Mamedov: > >>>>> On Wed, 10 May 2017 09:02:46 +0200 > >>>>> Stefan Priebe - Profihost AG <s.priebe@profihost.ag> wrote: > >>>>> > >>>>>> how to fix bad key ordering? > >>>>> > >>>>> You should clarify does the FS in question mount (read-write? read-only?) > >>>>> and what are the kernel messages if it does not. > >>>>> > >>> > > -- Hugo Mills | Alert status mauve ocelot: Slight chance of hugo@... carfax.org.uk | brimstone. Be prepared to make a nice cup of tea. http://carfax.org.uk/ | PGP: E2AB1DE4 | [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 836 bytes --] ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: runtime btrfsck 2017-05-10 9:54 ` Hugo Mills @ 2017-05-10 11:23 ` Stefan Priebe - Profihost AG 0 siblings, 0 replies; 16+ messages in thread From: Stefan Priebe - Profihost AG @ 2017-05-10 11:23 UTC (permalink / raw) To: Hugo Mills, Roman Mamedov, linux-btrfs@vger.kernel.org Hello, thanks. But is there any way to recover from this error? Like removing the item or so? Data loss isn't a problem. Just reconstructing the whole FS will take quite a long time. Stefan Am 10.05.2017 um 11:54 schrieb Hugo Mills: > On Wed, May 10, 2017 at 11:20:58AM +0200, Stefan Priebe - Profihost AG wrote: >> Hello, >> >> here's the output: >> # for block in 163316514816 163322413056 163325722624; do echo $block; >> btrfs-debug-tree -b $block /dev/mapper/crypt_md0|sed -re 's/(\t| )name: >> .*/\1name: HIDDEN/'; done >> >> 163316514816 >> btrfs-progs v4.8.5 >> leaf 163316514816 items 188 free space 1387 generation 86739 owner 3892 >> fs uuid 37b15dd8-b2e1-4585-98d0-cc0fa2a5a7c9 >> chunk uuid b86efe94-ab40-4344-ac6b-46ec59c41b8f > [...] >> item 37 key (23760 DIR_INDEX 36) itemoff 14278 itemsize 58 >> location key (28124232 INODE_ITEM 0) type FILE >> transid 86739 data_len 0 name_len 28 >> name: HIDDEN >> item 38 key (23760 DIR_INDEX 37) itemoff 14220 itemsize 58 >> location key (28124233 INODE_ITEM 0) type FILE >> transid 86739 data_len 0 name_len 28 >> name: HIDDEN >> item 39 key (23760 DIR_INDEX 38) itemoff 14165 itemsize 55 >> location key (28124234 INODE_ITEM 0) type FILE >> transid 86739 data_len 0 name_len 25 >> name: HIDDEN >> item 40 key (23760 DIR_INDEX 22) itemoff 14115 itemsize 50 >> location key (26923383 INODE_ITEM 0) type FILE >> transid 74009 data_len 0 name_len 20 >> name: HIDDEN >> item 41 key (23760 DIR_INDEX 23) itemoff 14067 itemsize 48 >> location key (26923384 INODE_ITEM 0) type FILE >> transid 74009 data_len 0 name_len 18 >> name: HIDDEN > [...] >> 163322413056 >> btrfs-progs v4.8.5 >> leaf 163322413056 items 113 free space 934 generation 86739 owner 3892 >> fs uuid 37b15dd8-b2e1-4585-98d0-cc0fa2a5a7c9 >> chunk uuid b86efe94-ab40-4344-ac6b-46ec59c41b8f > [...] >> item 73 key (24016 DIR_INDEX 19) itemoff 9651 itemsize 62 >> location key (28124251 INODE_ITEM 0) type FILE >> transid 86739 data_len 0 name_len 32 >> name: HIDDEN >> item 74 key (24016 DIR_INDEX 20) itemoff 9592 itemsize 59 >> location key (28124252 INODE_ITEM 0) type FILE >> transid 86739 data_len 0 name_len 29 >> name: HIDDEN >> item 75 key (24016 DIR_INDEX 4) itemoff 9538 itemsize 54 >> location key (26923401 INODE_ITEM 0) type FILE >> transid 74009 data_len 0 name_len 24 >> name: HIDDEN >> item 76 key (24016 DIR_INDEX 5) itemoff 9486 itemsize 52 >> location key (26923402 INODE_ITEM 0) type FILE >> transid 74009 data_len 0 name_len 22 >> name: HIDDEN > [...] >> 163325722624 >> btrfs-progs v4.8.5 >> leaf 163325722624 items 78 free space 6563 generation 86739 owner 3892 >> fs uuid 37b15dd8-b2e1-4585-98d0-cc0fa2a5a7c9 >> chunk uuid b86efe94-ab40-4344-ac6b-46ec59c41b8f > [...] >> item 62 key (24189 DIR_INDEX 16) itemoff 9409 itemsize 64 >> location key (28124267 INODE_ITEM 0) type FILE >> transid 86739 data_len 0 name_len 34 >> name: HIDDEN >> item 63 key (24189 DIR_INDEX 17) itemoff 9349 itemsize 60 >> location key (28124268 INODE_ITEM 0) type FILE >> transid 86739 data_len 0 name_len 30 >> name: HIDDEN >> item 64 key (24189 DIR_INDEX 4) itemoff 9296 itemsize 53 >> location key (26923421 INODE_ITEM 0) type FILE >> transid 74010 data_len 0 name_len 23 >> name: HIDDEN >> item 65 key (24189 DIR_INDEX 5) itemoff 9236 itemsize 60 >> location key (26923422 INODE_ITEM 0) type FILE >> transid 74010 data_len 0 name_len 30 >> name: HIDDEN > [...] > > In each case, the tree node keys have simply been sorted > incorrectly -- the ordering is otherwise correct, but jumps backwards > at some point in the sequence. At least in the first instance, some of > the keys appear to have been duplicated: there are two (23760 > DIR_INDEX 22) keys in the list. (I didn't check in detail with the > other two whether there are duplicates, but I wouldn't be surprised). > > I note that the jump in the keys in the first two cases is 16, and > the jump in the third case is 13. That _might_ suggest some kind of > bit-level error, but it's probably not in the RAM that was used to > store the blocks, as the error appears in a different place in each > block. > > I'm tentatively going to point the finger at your hardware for > this. It's probably going to need something really long and/or > stressful to pick it up, though (one of the CPU stress tests, for > example, and also a good long run with a RAM tester -- 24 hours or > longer). > > Hugo. > >> Stefan >> Am 10.05.2017 um 11:08 schrieb Hugo Mills: >>> On Wed, May 10, 2017 at 10:40:31AM +0200, Stefan Priebe - Profihost AG wrote: >>>> Am 10.05.2017 um 09:40 schrieb Hugo Mills: >>>>> On Wed, May 10, 2017 at 09:36:30AM +0200, Stefan Priebe - Profihost AG wrote: >>>>>> Hello Roman, >>>>>> >>>>>> the FS is mountable. It just goes readonly when trying to write some data. >>>>>> >>>>>> The kernel msgs are: >>>>>> BTRFS critical (device dm-2): corrupt leaf, bad key order: >>>>>> block=163316514816,root=1, slot=39 >>>>>> BTRFS critical (device dm-2): corrupt leaf, bad key order: >>>>>> block=163322413056,root=1, slot=74 >>>>>> BTRFS critical (device dm-2): corrupt leaf, bad key order: >>>>>> block=163325722624,root=1, slot=63 >>>>>> BTRFS critical (device dm-2): corrupt leaf, bad key order: >>>>>> block=163316514816,root=1, slot=39 >>>>>> BTRFS: error (device dm-2) in btrfs_drop_snapshot:8839: errno=-5 IO failure >>>>>> BTRFS info (device dm-2): forced readonly >>>>>> BTRFS info (device dm-2): delayed_refs has NO entry >>>>> >>>>> Can you show the output of btrfs-debug-tree -b <blocknum>, where >>>>> <blocknum> is each of the three "block=" values above? >>>> >>>> Can do that. But the lists are very long - should i upload them to >>>> pastebin? Is it ok to remove the name atribute - which provides filenames? >>> >>> On the mailing list would be preferable, as then the conversation >>> is completely preserved in archives. They shouldn't be so long that >>> vger rejects them. And yes, if you want to filter out the filenames, >>> do so (but _just_ the filename -- don't remove the whole line). >>> >>> Hugo. >>> >>>> Stefan >>>> >>>> >>>>> Hugo. >>>>> >>>>>> Greets, >>>>>> Stefan >>>>>> Am 10.05.2017 um 09:18 schrieb Roman Mamedov: >>>>>>> On Wed, 10 May 2017 09:02:46 +0200 >>>>>>> Stefan Priebe - Profihost AG <s.priebe@profihost.ag> wrote: >>>>>>> >>>>>>>> how to fix bad key ordering? >>>>>>> >>>>>>> You should clarify does the FS in question mount (read-write? read-only?) >>>>>>> and what are the kernel messages if it does not. >>>>>>> >>>>> >>> > ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: runtime btrfsck 2017-05-10 7:02 ` Stefan Priebe - Profihost AG 2017-05-10 7:18 ` Roman Mamedov @ 2017-05-10 7:24 ` Marat Khalili 2017-05-10 7:48 ` Martin Steigerwald 2 siblings, 0 replies; 16+ messages in thread From: Marat Khalili @ 2017-05-10 7:24 UTC (permalink / raw) To: linux-btrfs@vger.kernel.org Hello, (Warning: I'm a user, not a developer here.) In my experience (on kernel 4.4) it processed larger and slower devices within a day, BUT according to some recent topics the runaway fragmentation (meaning in this case large number of small extents regardless of their relative location) can significantly slow down BTRFS operations to the point of making them infeasible. Possible reasons for fragmentations are snapshotting volumes too often and/or running VM images from BTRFS without taking some precautions. On top of this, mount device name makes one suspicious there's another layer between BTRFS and hardware. Are you sure it's not the bottleneck in this case? -- With Best Regards, Marat Khalili On 10/05/17 10:02, Stefan Priebe - Profihost AG wrote: > I'm now trying btrfs progs 4.10.2. Is anybody out there who can tell me > something about the expected runtime or how to fix bad key ordering? > > Greets, > Stefan > > Am 06.05.2017 um 07:56 schrieb Stefan Priebe - Profihost AG: >> It's still running. Is this the normal behaviour? Is there any other way >> to fix the bad key ordering? >> >> Greets, >> Stefan >> >> Am 02.05.2017 um 08:29 schrieb Stefan Priebe - Profihost AG: >>> Hello list, >>> >>> i wanted to check an fs cause it has bad key ordering. >>> >>> But btrfscheck is now running since 7 days. Current output: >>> # btrfsck -p --repair /dev/mapper/crypt_md0 >>> enabling repair mode >>> Checking filesystem on /dev/mapper/crypt_md0 >>> UUID: 37b15dd8-b2e1-4585-98d0-cc0fa2a5a7c9 >>> bad key ordering 39 40 >>> checking extents [O] >>> >>> FS is a 12TB BTRFS Raid 0 over 3 mdadm Raid 5 devices. How long should >>> btrfsck run and is there any way to speed it up? btrfs tools is 4.8.5 >>> >>> Thanks! >>> >>> Greets, >>> Stefan >>> > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: runtime btrfsck 2017-05-10 7:02 ` Stefan Priebe - Profihost AG 2017-05-10 7:18 ` Roman Mamedov 2017-05-10 7:24 ` Marat Khalili @ 2017-05-10 7:48 ` Martin Steigerwald 2017-05-10 8:42 ` Stefan Priebe - Profihost AG 2017-05-10 8:52 ` Roman Mamedov 2 siblings, 2 replies; 16+ messages in thread From: Martin Steigerwald @ 2017-05-10 7:48 UTC (permalink / raw) To: Stefan Priebe - Profihost AG; +Cc: linux-btrfs@vger.kernel.org Stefan Priebe - Profihost AG - 10.05.17, 09:02: > I'm now trying btrfs progs 4.10.2. Is anybody out there who can tell me > something about the expected runtime or how to fix bad key ordering? I had a similar issue which remained unresolved. But I clearly saw that btrfs check was running in a loop, see thread: [4.9] btrfs check --repair looping over file extent discount errors So it would be interesting to see the exact output of btrfs check, maybe there is something like repeated numbers that also indicate a loop. I was about to say that BTRFS is production ready before this issue happened. I still think it for a lot of setup mostly is, as at least the "I get stuck on the CPU while searching for free space" issue seems to be gone since about anything between 4.5/4.6 kernels. I also think so regarding absence of data loss. I was able to copy over all of the data I needed of the broken filesystem. Yet, when it comes to btrfs check? Its still quite rudimentary if you ask me. So unless someone has a clever idea here and shares it with you, it may be needed to backup anything you can from this filesystem and then start over from scratch. As to my past experience something like xfs_repair surpasses btrfs check in the ability to actually fix broken filesystem by a great extent. Ciao, -- Martin ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: runtime btrfsck 2017-05-10 7:48 ` Martin Steigerwald @ 2017-05-10 8:42 ` Stefan Priebe - Profihost AG 2017-05-10 8:52 ` Roman Mamedov 1 sibling, 0 replies; 16+ messages in thread From: Stefan Priebe - Profihost AG @ 2017-05-10 8:42 UTC (permalink / raw) To: Martin Steigerwald; +Cc: linux-btrfs@vger.kernel.org Hi, Am 10.05.2017 um 09:48 schrieb Martin Steigerwald: > Stefan Priebe - Profihost AG - 10.05.17, 09:02: >> I'm now trying btrfs progs 4.10.2. Is anybody out there who can tell me >> something about the expected runtime or how to fix bad key ordering? > > I had a similar issue which remained unresolved. > But I clearly saw that btrfs check was running in a loop, see thread: > [4.9] btrfs check --repair looping over file extent discount errors > > So it would be interesting to see the exact output of btrfs check, maybe there > is something like repeated numbers that also indicate a loop. Output is just: enabling repair mode Checking filesystem on /dev/mapper/crypt_md0 UUID: 37b15dd8-b2e1-4585-98d0-cc0fa2a5a7c9 bad key ordering 39 40 checking extents [.] even after 2,5 weeks running. Stefan > I was about to say that BTRFS is production ready before this issue happened. > I still think it for a lot of setup mostly is, as at least the "I get stuck on > the CPU while searching for free space" issue seems to be gone since about > anything between 4.5/4.6 kernels. I also think so regarding absence of data > loss. I was able to copy over all of the data I needed of the broken > filesystem. > > Yet, when it comes to btrfs check? Its still quite rudimentary if you ask me. > So unless someone has a clever idea here and shares it with you, it may be > needed to backup anything you can from this filesystem and then start over from > scratch. As to my past experience something like xfs_repair surpasses btrfs > check in the ability to actually fix broken filesystem by a great extent. > > Ciao, > ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: runtime btrfsck 2017-05-10 7:48 ` Martin Steigerwald 2017-05-10 8:42 ` Stefan Priebe - Profihost AG @ 2017-05-10 8:52 ` Roman Mamedov 2017-05-11 14:03 ` Duncan 1 sibling, 1 reply; 16+ messages in thread From: Roman Mamedov @ 2017-05-10 8:52 UTC (permalink / raw) To: Martin Steigerwald Cc: Stefan Priebe - Profihost AG, linux-btrfs@vger.kernel.org On Wed, 10 May 2017 09:48:07 +0200 Martin Steigerwald <martin@lichtvoll.de> wrote: > Yet, when it comes to btrfs check? Its still quite rudimentary if you ask me. Indeed it is. It may or may not be possible to build a perfect Fsck, but IMO for the time being, what's most sorely missing, is some sort of a knowingly destructive repair mode, as in "I don't care about partial user data loss, just whack the FS metadata into full logical consistency at any means necessary". Also feels like it doesn't currently deal with the majority of actual in-real-world corruptions, notably the "parent transid failure" (even by a few dozens increments) which it can only helpfully "Ignore" during repair. So even with a minor corruption (something wonky in just ONE block of a multi-terabyte FS) the answer is way too often "nuke the entire thing and restore from backups". -- With respect, Roman ^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: runtime btrfsck 2017-05-10 8:52 ` Roman Mamedov @ 2017-05-11 14:03 ` Duncan 0 siblings, 0 replies; 16+ messages in thread From: Duncan @ 2017-05-11 14:03 UTC (permalink / raw) To: linux-btrfs Roman Mamedov posted on Wed, 10 May 2017 13:52:55 +0500 as excerpted: > So even with a minor corruption (something wonky in just ONE block of a > multi-terabyte FS) the answer is way too often "nuke the entire thing > and restore from backups". Just another case where my "keep it small enough to be maintainable" policy triggers. If that double-digit-TB fs is instead broken along functional/logical lines into say a dozen 1 TB each fs and that single block is corrupted, it can only be corrupted in one of them, so 11 of the dozen will be fine, and nuking to restore from backups just the single 1 TB filesystem of a dozen, instead of the single 12-TB fs, isn't such a big deal -- it remains realistically maintainable. Of course if at your scale 12 TB... or 12000 TB... is considered maintainable, great, but then we'd be unlikely to be having this discussion... -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman ^ permalink raw reply [flat|nested] 16+ messages in thread
end of thread, other threads:[~2017-05-11 14:03 UTC | newest] Thread overview: 16+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2017-05-02 6:29 runtime btrfsck Stefan Priebe - Profihost AG 2017-05-06 5:56 ` Stefan Priebe - Profihost AG 2017-05-10 7:02 ` Stefan Priebe - Profihost AG 2017-05-10 7:18 ` Roman Mamedov 2017-05-10 7:36 ` Stefan Priebe - Profihost AG 2017-05-10 7:40 ` Hugo Mills 2017-05-10 8:40 ` Stefan Priebe - Profihost AG 2017-05-10 9:08 ` Hugo Mills 2017-05-10 9:20 ` Stefan Priebe - Profihost AG 2017-05-10 9:54 ` Hugo Mills 2017-05-10 11:23 ` Stefan Priebe - Profihost AG 2017-05-10 7:24 ` Marat Khalili 2017-05-10 7:48 ` Martin Steigerwald 2017-05-10 8:42 ` Stefan Priebe - Profihost AG 2017-05-10 8:52 ` Roman Mamedov 2017-05-11 14:03 ` Duncan
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