Alfred von Campe wrote:
Kai:
Dec 9 04:30:35 nx10 kernel: EXT3-fs error (device hda3): htree_dirblock_to_tree: bad entry in directory #1330023: rec_len % 4 != 0 - offset=10264, inode=808542775, rec_len=13621, name_len=100 Dec 9 04:30:35 nx10 kernel: Aborting journal on device hda3. Dec 9 04:30:35 nx10 kernel: ext3_abort called. Dec 9 04:30:35 nx10 kernel: EXT3-fs error (device hda3): ext3_journal_start_sb: Detected aborted journal Dec 9 04:30:35 nx10 kernel: Remounting filesystem read-only
Updating to 4.5 was just a coincidence. I believe you have a disk that's going bad. I've seen this error three times and it has always been a bad disk. Backup what you can and replace the disk.
you could confirm this with smart (after backing up your data) can't remember the options, so check man smartctl but it should be something like smartctl -t short /dev/hda (perform short test) smartctl -l selftest /dev/hda (check SMART selftest log)
cheers