Hallo!
I've posted this problem in newbie's list with no luck.
I've got 4 ide controllers, all of them have 1 HD or CD connected as master:
DVD: hda, RW: hdc, HD1: hde and HD2: hdg
I've got kernel 2.4.18.8.1 installed, and bios recognizes both DVD and RW as
DMA. These are set up as scsi-emulated in order for recording programs to
see them.
But when I'm reading from DVD using xcdroast in order to make a image from
which the CDR is going to be burnt it takes 100% cpu cycles (measured using
gkrellm). As it's not a laptop that's not a problem...
... but when recording that image the RW again uses 100% cpu but now the PC
is almost unusable. Using an Athlon 1.2 and 512Mb DDR it cannot be like
that, so I suppose it's ussing polling instead of DMA... am I right?
Well, any ideas will be appreciated. Thanks in advance ;)
Ah! Here's a piece of the dmesg output:
-------------
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: IDE controller on PCI bus 00 dev 39
VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci00:07.1
ide0: BM-DMA at 0xb400-0xb407, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0xb408-0xb40f, BIOS settings: hdc:DMA, hdd:pio
PDC20265: IDE controller on PCI bus 00 dev 80
PCI: Found IRQ 11 for device 00:10.0
PCI: Sharing IRQ 11 with 00:07.2
PCI: Sharing IRQ 11 with 00:07.3
PDC20265: chipset revision 2
PDC20265: not 100% native mode: will probe irqs later
PDC20265: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode.
ide2: BM-DMA at 0xe400-0xe407, BIOS settings: hde:pio, hdf:pio
ide3: BM-DMA at 0xe408-0xe40f, BIOS settings: hdg:pio, hdh:pio
hda: Pioneer DVD-ROM ATAPIModel DVD-105S 013, ATAPI CD/DVD-ROM drive
hdc: AOPEN CD-RW CRW3248 1.12 20020417, ATAPI CD/DVD-ROM drive
hde: ST340016A, ATA DISK drive
hdg: IC35L060AVVA07-0, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
ide2 at 0xd400-0xd407,0xd802 on irq 11
ide3 at 0xdc00-0xdc07,0xe002 on irq 11
hde: 78165360 sectors (40021 MB) w/2048KiB Cache, CHS=77545/16/63, UDMA(100)
hdg: 120103200 sectors (61493 MB) w/1863KiB Cache, CHS=119150/16/63, UDMA(100)
Partition check:
/dev/ide/host2/bus0/target0/lun0: [PTBL] [4865/255/63] p1 p2 < p5 p6 p7 p8 >
/dev/ide/host2/bus1/target0/lun0: p1 p2 < p5 p6 p7 p8 >
...
SCSI subsystem driver Revision: 1.00
scsi0 : SCSI host adapter emulation for IDE ATAPI devices
Vendor: PIONEER Model: DVD-ROM DVD-105 Rev: 1.33
Type: CD-ROM ANSI SCSI revision: 02
Vendor: AOPEN Model: CD-RW CRW3248 Rev: 1.12
Type: CD-ROM ANSI SCSI revision: 02
------------
--
Joan Tur. Eivissa-Spain
AOL quini2k, ICQ 11407395
www.ClubIbosim.org
Linux: usuari registrat 190.783
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