On Tue, May 02, 2017 at 11:00:08PM -0700, Marc MERLIN wrote: > David, > > I think you maintain btrfs-progs, but I'm not sure if you're in charge > of check --repair. > Could you comment on the bottom of the mail, namely: > > failed to repair damaged filesystem, aborting > > So, I'm out of luck now, full wipe and 3-5 day rebuild? Actually, another thought: Is there or should there be a way to repair around the bit that cannot be repaired? Separately, or not, can I locate which bits are causing the repair to fail and maybe get a pointer to the path/inode so that I can hopefully just delete those bad data structures (assuming deleting them is even possible and that the FS won't just go read only as I try to do that)
Here is the full run if that helps: https://pastebin.com/STMFHty4 > Thanks, > Marc > > Rest: > On Tue, May 02, 2017 at 11:47:22AM -0700, Marc MERLIN wrote: > > (cc trimmed) > > > > The one in debian/unstable crashed: > > gargamel:~# btrfs --version > > btrfs-progs v4.7.3 > > gargamel:~# btrfs check --repair /dev/mapper/dshelf2 > > bytenr mismatch, want=2899180224512, have=3981076597540270796 > > extent-tree.c:2721: alloc_reserved_tree_block: Assertion `ret` failed. > > btrfs[0x43e418] > > btrfs[0x43e43f] > > btrfs[0x43f276] > > btrfs[0x43f46f] > > btrfs[0x4407ef] > > btrfs[0x440963] > > btrfs(btrfs_inc_extent_ref+0x513)[0x44107a] > > btrfs[0x420053] > > btrfs[0x4265eb] > > btrfs(cmd_check+0x1111)[0x427d6d] > > btrfs(main+0x12f)[0x40a341] > > /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1)[0x7f6b632e82b1] > > btrfs(_start+0x2a)[0x40a37a] > > > > Ok, it's old, let's take git from today: > > gargamel:~# btrfs --version > > btrfs-progs v4.10.2 > > As a note, > > gargamel:~# btrfs check --mode=lowmem --repair /dev/mapper/dshelf2 > > enabling repair mode > > ERROR: low memory mode doesn't support repair yet > > > > As a note, a 32bit binary on a 64bit kernel: > > gargamel:~# btrfs check --repair /dev/mapper/dshelf2 > > enabling repair mode > > Checking filesystem on /dev/mapper/dshelf2 > > UUID: 03e9a50c-1ae6-4782-ab9c-5f310a98e653 > > checking extents > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > checksum verify failed on 2899180224512 found ABBE39B0 wanted E0735D0E > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > bytenr mismatch, want=2899180224512, have=3981076597540270796 > > checksum verify failed on 1449488023552 found CECC36AF wanted 199FE6C5 > > checksum verify failed on 1449488023552 found CECC36AF wanted 199FE6C5 > > checksum verify failed on 1449544613888 found 895D691B wanted A0C64D2B > > checksum verify failed on 1449544613888 found 895D691B wanted A0C64D2B > > parent transid verify failed on 1671538819072 wanted 293964 found 293902 > > parent transid verify failed on 1671538819072 wanted 293964 found 293902 > > checksum verify failed on 1671603781632 found 18BC28D6 wanted 372655A0 > > checksum verify failed on 1671603781632 found 18BC28D6 wanted 372655A0 > > cmds-check.c:6291: add_data_backref: BUG_ON `!back` triggered, value 1 > > Aborted > > > > let's try again with a 64bit binary built from git: > > (...) > > Repaired extent references for 4227617038336 > > ref mismatch on [4227872751616 4096] extent item 1, found 0 > > Incorrect local backref count on 4227872751616 parent 3493071667200 owner 0 > > offset 0 found 0 wanted 1 back 0x56470b18e7f0 > > Backref disk bytenr does not match extent record, bytenr=4227872751616, ref > > bytenr=0 > > backpointer mismatch on [4227872751616 4096] > > owner ref check failed [4227872751616 4096] > > repair deleting extent record: key 4227872751616 168 4096 > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > checksum verify failed on 2899180224512 found ABBE39B0 wanted E0735D0E > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > bytenr mismatch, want=2899180224512, have=3981076597540270796 > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > checksum verify failed on 2899180224512 found ABBE39B0 wanted E0735D0E > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > bytenr mismatch, want=2899180224512, have=3981076597540270796 > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > checksum verify failed on 2899180224512 found ABBE39B0 wanted E0735D0E > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > bytenr mismatch, want=2899180224512, have=3981076597540270796 > > Repaired extent references for 4227872751616 > > ref mismatch on [6674127745024 32768] extent item 0, found 1 > > Backref 6674127745024 parent 7566652473344 owner 0 offset 0 num_refs 0 not > > found in extent tree > > Incorrect local backref count on 6674127745024 parent 7566652473344 owner 0 > > offset 0 found 1 wanted 0 back 0x5648afda0f20 > > backpointer mismatch on [6674127745024 32768] > > checksum verify failed on 6983266418688 found 393B112A wanted 2B19CD5C > > checksum verify failed on 6983266418688 found 393B112A wanted 2B19CD5C > > checksum verify failed on 6983266418688 found BCBF9E15 wanted 785FF67E > > checksum verify failed on 6983266418688 found 393B112A wanted 2B19CD5C > > bytenr mismatch, want=6983266418688, have=13671317608077697645 > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > checksum verify failed on 2899180224512 found ABBE39B0 wanted E0735D0E > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > bytenr mismatch, want=2899180224512, have=3981076597540270796 > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > checksum verify failed on 2899180224512 found ABBE39B0 wanted E0735D0E > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > bytenr mismatch, want=2899180224512, have=3981076597540270796 > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > checksum verify failed on 2899180224512 found ABBE39B0 wanted E0735D0E > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > bytenr mismatch, want=2899180224512, have=3981076597540270796 > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > checksum verify failed on 2899180224512 found ABBE39B0 wanted E0735D0E > > checksum verify failed on 2899180224512 found 7A6D427F wanted 7E899EE5 > > bytenr mismatch, want=2899180224512, have=3981076597540270796 > > failed to repair damaged filesystem, aborting > > > > > > So, I'm out of luck now, full wipe and 3-5 day rebuild? > > > > Thanks, > > Marc > > -- > > "A mouse is a device used to point at the xterm you want to type in" - > > A.S.R. > > Microsoft is to operating systems .... > > .... what McDonalds is to gourmet > > cooking > > Home page: http://marc.merlins.org/ > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > > the body of a message to majord...@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > -- > "A mouse is a device used to point at the xterm you want to type in" - A.S.R. > Microsoft is to operating systems .... > .... what McDonalds is to gourmet > cooking > Home page: http://marc.merlins.org/ | PGP > 1024R/763BE901 > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/ | PGP 1024R/763BE901 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
