Hi. I have same problem with libata.. and i fix this bug by changing 40-wire cable to 80-wire. In Leszek dmesg log i found this:
[ 32.644068] hdc: Optiarc DVD RW AD-7173A, ATAPI CD/DVD-ROM drive [ 32.644102] hdc: host max PIO5 wanted PIO255(auto-tune) selected PIO4 !!!! [ 32.644276] hdc: host side 80-wire cable detection failed, limiting max speed to UDMA33
try - maybe help
Hi. I have same problem with libata.. and i fix this bug by changing 40-wire cable to 80-wire.
In Leszek dmesg log i found this:
[ 32.644068] hdc: Optiarc DVD RW AD-7173A, ATAPI CD/DVD-ROM drive
[ 32.644102] hdc: host max PIO5 wanted PIO255(auto-tune) selected PIO4
!!!! [ 32.644276] hdc: host side 80-wire cable detection failed, limiting max speed to UDMA33
try - maybe help