So... I find a solution! :) I tried to play with mount options. Finally I sucessfully mounted corrupted btrfs with mount -t btrfs -oro,degraded,recovery /dev/sdb2 /mnt/hdd-root/ Thank you for help. Now I copy all data to external drive and make new filestystem. Frantisek 2015-10-02 11:05 GMT+02:00 Vackář František <vackarf@xxxxxxxxx>: > I'm not sure if it was my last email with attachement delivered. > > My last email is below. Attachement is uploaded here: > http://franta.naobzoru.cz/files/btrfs-failed.txt > > Thank you. > > Frantisek > > 2015-09-27 11:51 GMT+02:00 Vackář František <vackarf@xxxxxxxxx>: >> So I copy with dd all my 1.7 TB partition with broken btrfs on >> external hdd and try to repair, but without success. >> >> I tried to apply patch to actual sources but its too different to >> apply. So I downloaded sources from april 2014 (last before date od >> patch) and it was applied correctly. But when I ran it (./btrfsck >> --repair /dev/sdb2) it faild. Output is in attachment. Do you have any >> idea what to do? >> >> Frantisek >> >> 2015-09-25 12:06 GMT+02:00 Hugo Mills <hugo@xxxxxxxxxxxxx>: >>> On Fri, Sep 25, 2015 at 11:36:55AM +0200, Vackář František wrote: >>>> Now I have memory ok. >>>> >>>> I found this patch, but i am not sure, if its the correct one. >>>> https://www.mail-archive.com/linux-btrfs@xxxxxxxxxxxxxxx/msg33496.html >>>> >>>> Cay you help me please, witch patch i should use? >>> >>> Yes, that's the patch series (you'll need all three patches). David >>> Sterba said it didn't apply cleanly any more; I don't know how hard >>> it'll be to fix up the problems, though. >>> >>> Hugo. >>> >>>> Frantisek >>>> >>>> 2015-09-23 17:22 GMT+02:00 Vackář František <vackarf@xxxxxxxxx>: >>>> > Yes, I have bad ram. I ran memtest and memory is really bad. >>>> > >>>> > So a must buy new memory first. >>>> > >>>> > Thank you. >>>> > >>>> > Frantisek >>>> > >>>> > 2015-09-23 16:43 GMT+02:00 Hugo Mills <hugo@xxxxxxxxxxxxx>: >>>> >> On Wed, Sep 23, 2015 at 04:39:27PM +0200, Vackář František wrote: >>>> >>> Hello, >>>> >>> >>>> >>> i have problem with my btrfs, can you help me, please? Its on my >>>> >>> notebook. Sometimes it exhausted battery during sleep and died. But >>>> >>> everytime FS was ok. But ones mount fail. >>>> >>> >>>> >>> Do you have any idea how repair it? >>>> >> [snip] >>>> >>> [root@rak ~]# dmesg | tail >>>> >> [snip] >>>> >>> [ 4108.444472] BTRFS critical (device sdb2): corrupt leaf, bad key >>>> >>> order: block=3242455040,root=1, slot=0 >>>> >> >>>> >> You have bad RAM. You should run memtest and fix the hardware first. >>>> >> >>>> >> After that, there's some patches that should allow btrfs repair to >>>> >> fix bad key orders in most situations -- I think David was picking >>>> >> them up again, but I don't know what state they're in right now. >>>> >> >>>> >> Hugo. >>>> >> >>>> >>> [ 4108.444649] BTRFS critical (device sdb2): corrupt leaf, bad key >>>> >>> order: block=3242455040,root=1, slot=0 >>>> >>> [ 4108.444681] BTRFS error (device sdb2): Error removing orphan entry, >>>> >>> stopping orphan cleanup >>>> >>> [ 4108.444684] BTRFS error (device sdb2): could not do orphan cleanup -22 >>>> >>> [ 4111.047323] BTRFS: open_ctree failed >>>> >>> >>>> >>> [root@rak ~]# uname -a >>>> >>> Linux rak 4.1.2-2-ARCH #1 SMP PREEMPT Wed Jul 15 08:30:32 UTC 2015 >>>> >>> x86_64 GNU/Linux >>>> >>> >>>> >>> [root@rak ~]# btrfs fi show /dev/sdb2 >>>> >>> Label: 'data' uuid: 754a3186-c0ae-4680-ab28-864c8bdad8b5 >>>> >>> Total devices 1 FS bytes used 1.23TiB >>>> >>> devid 1 size 1.72TiB used 1.24TiB path /dev/sdb2 >>>> >>> >>>> >>> btrfs-progs v4.2 >>>> >>> >>>> >>> [root@rak ~]# btrfs --version >>>> >>> btrfs-progs v4.2 >>>> >>> >>>> >>> [root@rak ~]# btrfs fi show >>>> >>> Label: 'data' uuid: 754a3186-c0ae-4680-ab28-864c8bdad8b5 >>>> >>> Total devices 1 FS bytes used 1.23TiB >>>> >>> devid 1 size 1.72TiB used 1.24TiB path /dev/sdb2 >>>> >>> >>>> >>> btrfs-progs v4.2 >>>> >> >>> >>> -- >>> Hugo Mills | Do not meddle in the affairs of wizards, for they >>> hugo@... carfax.org.uk | are subtle, and quick to anger. >>> http://carfax.org.uk/ | >>> PGP: E2AB1DE4 | J.R.R. Tolkein -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
