A k3b indításkor panaszkodott, hogy a cd-meghajtók esetében nincs bekapcsolva a dma.
Ennek örömére megpróbáltam bekapcsolni a közvetlen memóriahozzáférést a két meghajtóra.
A következő hibaüzenetet kaptam:
root@nostromo:~# hdparm -d 1 /dev/hdb
/dev/hdb:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
using_dma = 0 (off)
root@nostromo:~# hdparm -d 1 /dev/hdc
/dev/hdc:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
using_dma = 0 (off)
A meghajtók a kövezkezők:
root@nostromo:~# hdparm -iI /dev/hdb
/dev/hdb:
Model=HL-DT-ST DVDRAM GSA-4082B, FwRev=A201, SerialNo=K2744DA2025
Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=0kB, MaxMultSect=0
(maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 *udma2
AdvancedPM=no
Drive conforms to: Unspecified: ATA/ATAPI-2,3,4,5
* signifies the current active mode
ATAPI CD-ROM, with removable media
Model Number: HL-DT-ST DVDRAM GSA-4082B
Serial Number: K2744DA2025
Firmware Revision: A201
Standards:
Likely used CD-ROM ATAPI-1
Configuration:
DRQ response: 50us.
Packet size: 12 bytes
Capabilities:
LBA, IORDY(can be disabled)
DMA: mdma0 mdma1 mdma2 udma0 udma1 *udma2
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
HW reset results:
CBLID- above Vih
Device num = 1
root@nostromo:~# hdparm -iI /dev/hdc
/dev/hdc:
Model=ASUS CRW-5232AS, FwRev=1.0, SerialNo=
Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=0kB, MaxMultSect=0
(maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
IORDY=yes, tPIO={min:227,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 *udma2
AdvancedPM=no
* signifies the current active mode
ATAPI CD-ROM, with removable media
Model Number: ASUS CRW-5232AS
Serial Number:
Firmware Revision: 1.0
Standards:
Likely used CD-ROM ATAPI-1
Configuration:
DRQ response: 50us.
Packet size: 12 bytes
Capabilities:
LBA, IORDY(cannot be disabled)
DMA: mdma0 mdma1 mdma2 udma0 udma1 *udma2
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=227ns IORDY flow control=120ns
Az ide vezérlő:
00:1f.1 IDE interface: Intel Corporation 82801EB/ER (ICH5/ICH5R) IDE Controller (rev 02)
Ami vicces az az, hogy a biosban bekapcsoltam a 32 bites átviteli módot a cdkre, és a hdparm is ezt mutatja, ennek ellenére mégis panaszkodik a k3b...