Après une tentative de mount en verbose :
Dec 22 15:22:50 shoodsdesktop kernel: [  242.426533] ata2.01: configured for UDMA/133
Dec 22 15:22:50 shoodsdesktop kernel: [  242.426547] sd 1:0:1:0: [sdc] Unhandled sense code
Dec 22 15:22:50 shoodsdesktop kernel: [  242.426551] sd 1:0:1:0: [sdc] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Dec 22 15:22:50 shoodsdesktop kernel: [  242.426556] sd 1:0:1:0: [sdc] Sense Key : Medium Error [current] [descriptor]
Dec 22 15:22:50 shoodsdesktop kernel: [  242.426563] Descriptor sense data with sense descriptors (in hex):
Dec 22 15:22:50 shoodsdesktop kernel: [  242.426566]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00
Dec 22 15:22:50 shoodsdesktop kernel: [  242.426581]         30 36 80 05
Dec 22 15:22:50 shoodsdesktop kernel: [  242.426587] sd 1:0:1:0: [sdc] Add. Sense: Unrecovered read error - auto reallocate failed
Dec 22 15:22:50 shoodsdesktop kernel: [  242.426595] sd 1:0:1:0: [sdc] CDB: Read(10): 28 00 30 36 80 00 00 00 08 00
Dec 22 15:22:50 shoodsdesktop kernel: [  242.426620] ata2: EH complete

Après une tentative de xfs-check :
Dec 22 15:25:49 shoodsdesktop kernel: [  420.374470] sd 1:0:1:0: [sdc] Unhandled sense code
Dec 22 15:25:49 shoodsdesktop kernel: [  420.374474] sd 1:0:1:0: [sdc] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Dec 22 15:25:49 shoodsdesktop kernel: [  420.374479] sd 1:0:1:0: [sdc] Sense Key : Medium Error [current] [descriptor]
Dec 22 15:25:49 shoodsdesktop kernel: [  420.374485] Descriptor sense data with sense descriptors (in hex):
Dec 22 15:25:49 shoodsdesktop kernel: [  420.374488]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00
Dec 22 15:25:49 shoodsdesktop kernel: [  420.374501]         30 36 80 05
Dec 22 15:25:49 shoodsdesktop kernel: [  420.374506] sd 1:0:1:0: [sdc] Add. Sense: Unrecovered read error - auto reallocate failed
Dec 22 15:25:49 shoodsdesktop kernel: [  420.374514] sd 1:0:1:0: [sdc] CDB: Read(10): 28 00 30 36 80 00 00 00 08 00
Dec 22 15:25:49 shoodsdesktop kernel: [  420.374547] ata2: EH complete
Dec 22 15:25:49 shoodsdesktop kernel: [  420.374635] xfs_db[2293]: segfault at 70 ip 0807794e sp bfdb3120 error 4 in xfs_db[8048000+70000]