[54685.482704] ata1.00: exception Emask 0x0 SAct 0xe00 SErr 0x0 action 0x0
[54685.482711] ata1.00: irq_stat 0x40000008
[54685.482716] ata1.00: failed command: READ FPDMA QUEUED
[54685.482722] ata1.00: cmd 60/08:48:00:d3:16/00:00:3a:00:00/40 tag 9 ncq 4096 in
[54685.482722]          res 41/40:08:00:d3:16/00:00:3a:00:00/00 Emask 0x409 (media error) <F>
[54685.482724] ata1.00: status: { DRDY ERR }
[54685.482726] ata1.00: error: { UNC }
[54685.535995] ata1.00: configured for UDMA/133
[54685.536017] ata1: exception Emask 0x1 SAct 0x0 SErr 0x0 action 0x0 t4
[54685.536021] ata1: irq_stat 0x40000001
[54685.536036] sd 0:0:0:0: [sda] Unhandled sense code
[54685.536037] sd 0:0:0:0: [sda]  
[54685.536039] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[54685.536040] sd 0:0:0:0: [sda]  
[54685.536042] Sense Key : Medium Error [current] [descriptor]
[54685.536045] Descriptor sense data with sense descriptors (in hex):
[54685.536047]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 
[54685.536054]         3a 16 d3 00 
[54685.536058] sd 0:0:0:0: [sda]  
[54685.536061] Add. Sense: Unrecovered read error - auto reallocate failed
[54685.536063] sd 0:0:0:0: [sda] CDB: 
[54685.536065] Read(10): 28 00 3a 16 d3 00 00 00 08 00
[54685.536072] end_request: I/O error, dev sda, sector 974574336
[54685.536094] EXT4-fs error (device sda6): ext4_find_entry:1310: inode #2380003: comm BrowserBlocking: reading directory lblock 0
[54685.536097] ata1: EH complete
[54685.539952] Aborting journal on device sda6-8.
[54685.541725] EXT4-fs (sda6): Remounting filesystem read-only
[55146.922377] EXT4-fs error (device sda6): ext4_remount:4852: Abort forced by user