DVR-111D dma

Имею привод PIONEER DVD-RW DVR-111D.
Делаю:

hdparm -d1 /dev/hda
/dev/hda:
 setting using_dma to 1 (on)
 using_dma    =  1 (on)

проверяю:

hdparm -d /dev/hda
/dev/hda:
 using_dma    =  1 (on)

вставляю диск начинаю копировать, скорость 4мб/c загрузка CPU под 100%
проверяю:

hdparm -d /dev/hda
/dev/hda:
 using_dma    =  0 (off)

смотрю /var/log/messgaes

Apr 22 17:27:29 Paradise hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }
Apr 22 17:27:29 Paradise hda: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 }
Apr 22 17:27:29 Paradise ide: failed opcode was: unknown
Apr 22 17:27:29 Paradise hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }
Apr 22 17:27:29 Paradise hda: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 }
Apr 22 17:27:29 Paradise ide: failed opcode was: unknown
Apr 22 17:27:29 Paradise hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }
Apr 22 17:27:29 Paradise hda: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 }
Apr 22 17:27:29 Paradise ide: failed opcode was: unknown
Apr 22 17:27:29 Paradise hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }
Apr 22 17:27:29 Paradise hda: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 }
Apr 22 17:27:29 Paradise ide: failed opcode was: unknown
Apr 22 17:27:29 Paradise hda: DMA disabled
Apr 22 17:27:29 Paradise hda: ide_intr: huh? expected NULL handler on exit
Apr 22 17:27:29 Paradise hda: ATAPI reset complete
Apr 22 17:27:30 Paradise VFS: busy inodes on changed media.
Apr 22 17:29:11 Paradise su[32713]: Successful su for root by lucky
Apr 22 17:29:11 Paradise su[32713]: + pts/2 lucky:root
Apr 22 17:29:11 Paradise su[32713]: pam_unix(su:session): session opened for user root by (uid=1000)
Apr 22 17:29:21 Paradise hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }
Apr 22 17:29:21 Paradise hda: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 }
Apr 22 17:29:21 Paradise ide: failed opcode was: unknown
Apr 22 17:29:21 Paradise hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }
Apr 22 17:29:21 Paradise hda: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 }
Apr 22 17:29:21 Paradise ide: failed opcode was: unknown
Apr 22 17:29:21 Paradise hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }
Apr 22 17:29:21 Paradise hda: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 }
Apr 22 17:29:21 Paradise ide: failed opcode was: unknown
Apr 22 17:29:21 Paradise hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }
Apr 22 17:29:21 Paradise hda: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 }
Apr 22 17:29:21 Paradise ide: failed opcode was: unknown
Apr 22 17:29:21 Paradise hda: DMA disabled
Apr 22 17:29:21 Paradise hda: ide_intr: huh? expected NULL handler on exit
Apr 22 17:29:21 Paradise hda: ATAPI reset complete
Apr 22 17:29:23 Paradise VFS: busy inodes on changed media.

Итого: при копировании любых дисков dma выключается. При записи иногда dma выключается, иногда нет=\
Драйвер вкомпилен в ядро:

<*> ATA/ATAPI/MFM/RLL support 
 [*]       Generic PCI bus-master DMA support 
  [*]         Use PCI DMA by default when available
   <*>         AMD and nVidia IDE support 

Пробовал драйвера из

Serial ATA (prod) and Parallel ATA (experimental) drivers  ---> 
AMD/NVidia PATA support (Experimental)

тогда не получается даже скопировать.

Какие будут советы? привод умирает?