ata2.01: qc timeout (cmd 0xa0)
ata2.01: exception Emask 0×0 SAct 0×0 SErr 0×0 action 0×2 frozen
ata2.01: cmd a0/00:00:00:00:20/00:00:00:00:00/b0 tag 0 cdb 0×25 data 8 in
res 51/20:03:00:00:00/00:00:00:00:00/b0 Emask 0×5 (timeout)
ata2: port is slow to respond, please be patient (Status 0xd1)
ata2: device not ready (errno=-16), forcing hardreset
ata2: soft resetting port
ata2.00: configured for UDMA/100
ata2.01: configured for UDMA/33

ata2: EH pending after completion, repeating EH (cnt=4)
ata2: EH complete
sd 1:0:0:0: [sda] 234441648 512-byte hardware sectors (120034 MB)
sd 1:0:0:0: [sda] Write Protect is off
sd 1:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn’t support DPO or FUA
sd 1:0:0:0: [sda] 234441648 512-byte hardware sectors (120034 MB)
sd 1:0:0:0: [sda] Write Protect is off
sd 1:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn’t support DPO or FUA

ata2.01: qc timeout (cmd 0xa0)
ata2.01: exception Emask 0×0 SAct 0×0 SErr 0×0 action 0×2 frozen
ata2.01: cmd a0/00:00:00:00:20/00:00:00:00:00/b0 tag 0 cdb 0×25 data 8 in
res 51/20:03:00:00:00/00:00:00:00:00/b0 Emask 0×5 (timeout)
ata2: port is slow to respond, please be patient (Status 0xd1)
ata2: device not ready (errno=-16), forcing hardreset
ata2: soft resetting port
ata2.00: configured for UDMA/100
ata2.01: configured for UDMA/33
ata2: EH pending after completion, repeating EH (cnt=4)
ata2: EH completesd 1:0:0:0: [sda] 234441648 512-byte hardware sectors (120034 MB)
sd 1:0:0:0: [sda] Write Protect is off
sd 1:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn’t support DPO or FUA
sd 1:0:0:0: [sda] 234441648 512-byte hardware sectors (120034 MB)
sd 1:0:0:0: [sda] Write Protect is off
sd 1:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn’t support DPO or FUA

THE SOLUTION FOR MY LAPTOP IS
kill hald-addon-storage process.
you can do this with

hal-disable-polling --device /dev/cdrom

Hope this helps…

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