I'm suffering from ext4 corruption too. (Ubuntu 18.10, 4.19.6-041906-generic, 64 bit)
22:00:01 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484759: comm rm: bad extra_isize 58853 (inode size 256) 22:00:01 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484759: comm rm: bad extra_isize 58853 (inode size 256) 22:00:01 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484754: comm rm: bad extra_isize 58853 (inode size 256) 22:00:01 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484755: comm rm: bad extra_isize 58853 (inode size 256) 22:00:01 kernel: EXT4-fs error (device sda4): ext4_iget:4851: inode #42484768: comm rm: checksum invalid 22:00:01 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484767: comm rm: bad extra_isize 58853 (inode size 256) 22:00:01 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484763: comm rm: bad extra_isize 58853 (inode size 256) 22:00:01 kernel: EXT4-fs error (device sda4): ext4_iget:4851: inode #42484766: comm rm: checksum invalid 22:00:01 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484761: comm rm: bad extra_isize 58853 (inode size 256) 22:00:01 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484764: comm rm: bad extra_isize 58853 (inode size 256) 22:00:01 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484765: comm rm: bad extra_isize 58853 (inode size 256) 21:00:48 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484759: comm rm: bad extra_isize 58853 (inode size 256) 21:00:48 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484754: comm rm: bad extra_isize 58853 (inode size 256) 21:00:48 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484755: comm rm: bad extra_isize 58853 (inode size 256) 21:00:48 kernel: EXT4-fs error (device sda4): ext4_iget:4851: inode #42484768: comm rm: checksum invalid 21:00:48 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484767: comm rm: bad extra_isize 58853 (inode size 256) 21:00:48 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484763: comm rm: bad extra_isize 58853 (inode size 256) 21:00:48 kernel: EXT4-fs error (device sda4): ext4_iget:4851: inode #42484766: comm rm: checksum invalid 21:00:48 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484761: comm rm: bad extra_isize 58853 (inode size 256) 21:00:48 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484764: comm rm: bad extra_isize 58853 (inode size 256) 21:00:48 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484765: comm rm: bad extra_isize 58853 (inode size 256) 21:00:32 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484762: comm rsync: bad extra_isize 58853 (inode size 256) 21:00:32 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484761: comm rsync: bad extra_isize 58853 (inode size 256) 21:00:32 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484760: comm rsync: bad extra_isize 54976 (inode size 256) 21:00:32 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484759: comm rsync: bad extra_isize 58853 (inode size 256) 21:00:32 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484758: comm rsync: bad extra_isize 58853 (inode size 256) 21:00:32 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484757: comm rsync: bad extra_isize 58853 (inode size 256) 21:00:32 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484756: comm rsync: bad extra_isize 63008 (inode size 256) 21:00:32 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484755: comm rsync: bad extra_isize 58853 (inode size 256) 21:00:31 kernel: EXT4-fs error (device sda4): ext4_iget:4831: inode #42484754: comm rsync: bad extra_isize 58853 (inode size 256) 21:00:31 kernel: EXT4-fs error (device sda4): ext4_iget:4851: inode #42484753: comm rsync: checksum invalid Checked some of the defective inodes only to find timeshift back-upped files through rsync: debugfs 1.44.4 (18-Aug-2018) debugfs: ncheck 42484759 Inode Pathname 42484759 /timeshift/snapshots/2018-11-28_20-00-02/localhost/var/lib/dpkg/info/libxcb1:i386.symbols 42484759 /timeshift/snapshots/2018-11-30_18-00-01/localhost/var/lib/dpkg/info/libxcb1:i386.symbols 42484759 /timeshift/snapshots/2018-12-02_21-00-01/localhost/var/lib/dpkg/info/libxcb1:i386.symbols 42484759 /timeshift/snapshots/2018-12-01_21-00-01/localhost/var/lib/dpkg/info/libxcb1:i386.symbols debugfs: ncheck 42484754 Inode Pathname debugfs: ncheck 42484755 Inode Pathname 42484755 /timeshift/snapshots/2018-11-28_20-00-02/localhost/var/lib/dpkg/info/libxcb1:amd64.triggers 42484755 /timeshift/snapshots/2018-11-30_18-00-01/localhost/var/lib/dpkg/info/libxcb1:amd64.triggers 42484755 /timeshift/snapshots/2018-12-02_21-00-01/localhost/var/lib/dpkg/info/libxcb1:amd64.triggers 42484755 /timeshift/snapshots/2018-12-01_21-00-01/localhost/var/lib/dpkg/info/libxcb1:amd64.triggers debugfs: ncheck 42484768 Inode Pathname 42484768 /timeshift/snapshots/2018-11-28_20-00-02/localhost/var/lib/dpkg/info/libxft2:amd64.list 42484768 /timeshift/snapshots/2018-11-30_18-00-01/localhost/var/lib/dpkg/info/libxft2:amd64.list 42484768 /timeshift/snapshots/2018-12-02_21-00-01/localhost/var/lib/dpkg/info/libxft2:amd64.list 42484768 /timeshift/snapshots/2018-12-01_21-00-01/localhost/var/lib/dpkg/info/libxft2:amd64.list debugfs: ncheck 42484767 Inode Pathname 42484767 /timeshift/snapshots/2018-11-28_20-00-02/localhost/var/lib/dpkg/info/libxft-dev:amd64.md5sums 42484767 /timeshift/snapshots/2018-11-30_18-00-01/localhost/var/lib/dpkg/info/libxft-dev:amd64.md5sums 42484767 /timeshift/snapshots/2018-12-02_21-00-01/localhost/var/lib/dpkg/info/libxft-dev:amd64.md5sums 42484767 /timeshift/snapshots/2018-12-01_21-00-01/localhost/var/lib/dpkg/info/libxft-dev:amd64.md5sums debugfs: ncheck 42484763 Inode Pathname 42484763 /timeshift/snapshots/2018-11-28_20-00-02/localhost/var/lib/dpkg/info/libxdo3:amd64.shlibs 42484763 /timeshift/snapshots/2018-11-30_18-00-01/localhost/var/lib/dpkg/info/libxdo3:amd64.shlibs 42484763 /timeshift/snapshots/2018-12-02_21-00-01/localhost/var/lib/dpkg/info/libxdo3:amd64.shlibs 42484763 /timeshift/snapshots/2018-12-01_21-00-01/localhost/var/lib/dpkg/info/libxdo3:amd64.shlibs debugfs: ncheck 42484753 Inode Pathname 42484753 /timeshift/snapshots/2018-11-28_20-00-02/localhost/var/lib/dpkg/info/libxcb1:amd64.shlibs 42484753 /timeshift/snapshots/2018-11-30_18-00-01/localhost/var/lib/dpkg/info/libxcb1:amd64.shlibs 42484753 /timeshift/snapshots/2018-12-02_21-00-01/localhost/var/lib/dpkg/info/libxcb1:amd64.shlibs 42484753 /timeshift/snapshots/2018-12-01_21-00-01/localhost/var/lib/dpkg/info/libxcb1:amd64.shlibs Maybe timeshifts rsync is related to this? Kind regards Michael Hennig
