From /var/log/messages, same info in dmesg but without timestamps.
Mar 15 20:32:00 rickPC kernel: [12878.752119] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen Mar 15 20:32:00 rickPC kernel: [12878.752133] ata2.00: failed command: IDENTIFY PACKET DEVICE Mar 15 20:32:00 rickPC kernel: [12878.752150] ata2.00: cmd a1/00:01:00:00:00/00:00:00:00:00/00 tag 0 pio 512 in Mar 15 20:32:00 rickPC kernel: [12878.752154] res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout) Mar 15 20:32:00 rickPC kernel: [12878.752163] ata2.00: status: { DRDY } Mar 15 20:32:00 rickPC kernel: [12878.752176] ata2: hard resetting link Mar 15 20:32:00 rickPC kernel: [12879.212095] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300) Mar 15 20:32:01 rickPC kernel: [12880.015050] ata2.00: configured for PIO4 Mar 15 20:32:02 rickPC kernel: [12880.815639] ata2: EH complete
From /var/log/messages, same info in dmesg but without timestamps.
Mar 15 20:32:00 rickPC kernel: [12878.752119] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen 00:00:00/ 00:00:00: 00:00/00 tag 0 pio 512 in 00:00:00/ 00:00:00: 00:00/a0 Emask 0x4 (timeout)
Mar 15 20:32:00 rickPC kernel: [12878.752133] ata2.00: failed command: IDENTIFY PACKET DEVICE
Mar 15 20:32:00 rickPC kernel: [12878.752150] ata2.00: cmd a1/00:01:
Mar 15 20:32:00 rickPC kernel: [12878.752154] res 40/00:03:
Mar 15 20:32:00 rickPC kernel: [12878.752163] ata2.00: status: { DRDY }
Mar 15 20:32:00 rickPC kernel: [12878.752176] ata2: hard resetting link
Mar 15 20:32:00 rickPC kernel: [12879.212095] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
Mar 15 20:32:01 rickPC kernel: [12880.015050] ata2.00: configured for PIO4
Mar 15 20:32:02 rickPC kernel: [12880.815639] ata2: EH complete