Comment 3 for bug 1703260

Incidentally you may also have hardware errors:

Jul 10 01:55:04 hostname kernel: ata1: SError: { UnrecovData Handshk }
Jul 10 01:55:04 hostname kernel: ata1.00: failed command: WRITE FPDMA QUEUED
Jul 10 01:55:04 hostname kernel: ata1.00: cmd 61/08:c0:00:a8:99/00:00:10:00:00/40 tag 24 ncq dma 4096 out
                                             res 40/00:d0:00:a9:19/00:00:15:00:00/40 Emask 0x10 (ATA bus error)
Jul 10 01:55:04 hostname kernel: ata1.00: status: { DRDY }
Jul 10 01:55:04 hostname kernel: ata1.00: failed command: READ FPDMA QUEUED
Jul 10 01:55:04 hostname kernel: ata1.00: cmd 60/00:c8:d0:cf:9e/01:00:16:00:00/40 tag 25 ncq dma 131072 in
                                             res 40/00:d0:00:a9:19/00:00:15:00:00/40 Emask 0x10 (ATA bus error)
Jul 10 01:55:04 hostname kernel: ata1.00: status: { DRDY }
Jul 10 01:55:04 hostname kernel: ata1.00: failed command: READ FPDMA QUEUED
Jul 10 01:55:04 hostname kernel: ata1.00: cmd 60/40:d0:00:a9:19/00:00:15:00:00/40 tag 26 ncq dma 32768 in
                                             res 40/00:d0:00:a9:19/00:00:15:00:00/40 Emask 0x10 (ATA bus error)
Jul 10 01:55:04 hostname kernel: ata1.00: status: { DRDY }
Jul 10 01:55:05 hostname kernel: ata1.00: exception Emask 0x10 SAct 0x40000003 SErr 0x400100 action 0x6 frozen
Jul 10 01:55:05 hostname kernel: ata1.00: irq_stat 0x08000000, interface fatal error
Jul 10 01:55:05 hostname kernel: ata1: SError: { UnrecovData Handshk }
Jul 10 01:55:05 hostname kernel: ata1.00: failed command: READ FPDMA QUEUED
Jul 10 01:55:05 hostname kernel: ata1.00: cmd 60/00:00:d0:cf:9e/01:00:16:00:00/40 tag 0 ncq dma 131072 in
                                             res 40/00:08:00:a8:99/00:00:10:00:00/40 Emask 0x10 (ATA bus error)
Jul 10 01:55:05 hostname kernel: ata1.00: status: { DRDY }
Jul 10 01:55:05 hostname kernel: ata1.00: failed command: WRITE FPDMA QUEUED
Jul 10 01:55:05 hostname kernel: ata1.00: cmd 61/08:08:00:a8:99/00:00:10:00:00/40 tag 1 ncq dma 4096 out
                                             res 40/00:08:00:a8:99/00:00:10:00:00/40 Emask 0x10 (ATA bus error)
Jul 10 01:55:05 hostname kernel: ata1.00: status: { DRDY }
Jul 10 01:55:05 hostname kernel: ata1.00: failed command: READ FPDMA QUEUED
Jul 10 01:55:05 hostname kernel: ata1.00: cmd 60/40:f0:00:a9:19/00:00:15:00:00/40 tag 30 ncq dma 32768 in
                                             res 40/00:08:00:a8:99/00:00:10:00:00/40 Emask 0x10 (ATA bus error)
Jul 10 01:55:05 hostname kernel: ata1.00: status: { DRDY }
Jul 10 01:55:05 hostname kernel: ata1: limiting SATA link speed to 3.0 Gbps
Jul 10 01:55:05 hostname kernel: ata1.00: exception Emask 0x10 SAct 0x70 SErr 0x400100 action 0x6 frozen
Jul 10 01:55:05 hostname kernel: ata1.00: irq_stat 0x08000000, interface fatal error

Good luck