DMA      0x00000000 -> 0x00001000
  DMA zone: 32 pages used for memmap
  DMA zone: 0 pages reserved
  DMA zone: 3968 pages, LIFO batch:0
ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0xffa0 irq 14
ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0xffa8 irq 15
ata1.00: ATA-6: WDC WD800BB-75JHC0, 06.01C06, max UDMA/100
ata1.00: configured for UDMA/100
ata2.00: ATAPI: HL-DT-ST CD-RW/DVD-ROM GCC-4482B, E107, max UDMA/33
ata2.00: configured for UDMA/33