Hello, > On 21 Jan 2019, at 21:31, Dave Chinner <david@xxxxxxxxxxxxx> wrote: > > On Mon, Jan 21, 2019 at 03:36:11PM +0000, Julien Lutran wrote: >> Hello, >> >> I’m experiencing an issue with metadata corruption while trying to fix several corrupted xfs filesystems. >> Here’s an excerpt of the kernel messages when the disk is mounted : > > http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F > >> […] >> Jan 21 15:44:16 rescue kernel: XFS (sdb): Metadata corruption detected at xfs_inode_buf_verify+0x6d/0xf0, xfs_inode block 0x300160 >> Jan 21 15:44:16 rescue kernel: XFS (sdb): Unmount and run xfs_repair >> Jan 21 15:44:16 rescue kernel: XFS (sdb): First 64 bytes of corrupted metadata buffer: >> Jan 21 15:44:16 rescue kernel: XFS (sdb): metadata I/O error: block 0x300160 ("xfs_trans_read_buf_map") error 117 numblks 16 >> Jan 21 15:44:16 rescue kernel: XFS (sdb): xfs_imap_to_bp: xfs_trans_read_buf() returned error -117. > > What's in the 64 bytes of the corrupted metadata buffer output? > i.e. you trimmed away the bit of the error message that we actually > need to see what went wrong. Can you paste the uneditted log of the > error, including the output from mount time from the filesystem? Sorry, my bad. Here’s the full log : Jan 23 09:43:36 rescue kernel: XFS (sdb): Metadata corruption detected at xfs_inode_buf_verify+0x6d/0xf0, xfs_inode block 0x300160 Jan 23 09:43:36 rescue kernel: XFS (sdb): Unmount and run xfs_repair Jan 23 09:43:36 rescue kernel: XFS (sdb): First 64 bytes of corrupted metadata buffer: Jan 23 09:43:36 rescue kernel: ffff998f8f33b000: 49 4e 41 ed 02 01 00 00 00 00 03 e7 00 00 03 e7 INA............. Jan 23 09:43:36 rescue kernel: ffff998f8f33b010: 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 01 ................ Jan 23 09:43:36 rescue kernel: ffff998f8f33b020: 59 c8 26 66 34 15 44 a6 59 c8 26 68 04 66 94 c0 Y.&f4.D.Y.&h.f.. Jan 23 09:43:36 rescue kernel: ffff998f8f33b030: 59 c8 26 68 04 66 94 c0 00 00 00 00 00 00 00 2f Y.&h.f........./ Jan 23 09:43:36 rescue kernel: XFS (sdb): metadata I/O error: block 0x300160 ("xfs_trans_read_buf_map") error 117 numblks 16 Jan 23 09:43:36 rescue kernel: XFS (sdb): xfs_imap_to_bp: xfs_trans_read_buf() returned error -117. > >> I tried to run a xfs_repair (see attached log) but it ends up the same way : metadata error on block 0x300160 >> Is there a way to fix this corruption ? > > Likely a repair bug - the inode cluster has been trashed for some > reason and it's not fixing it properly so it's refusing to write > back corrupt inode metadata. > > I really need to see what was in the first 64 bytes of that buffer > and xfs_info output to determine if we have a corrupt cluster, a > corrupt filessystem block, or the hardware has returned a compeltely > zeroed sector.... > > Cheers, > > Dave. > -- > Dave Chinner > david@xxxxxxxxxxxxx
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