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-   -   nForce2-400 Ultra IDE driver (http://www.nvnews.net/vbulletin/showthread.php?t=41449)

.koval 11-26-04 09:52 AM

nForce2-400 Ultra IDE driver
 
sorry if topic was in a past.
i have AOpen AK79D-400VN mobo with nf2-400 ultra chipset.
kernel-2.6.8 (from debian distribute or native from kernel.org) compiled with
CONFIG_BLK_DEV_AMD74XX=y

Code:

# hdparm  /dev/hda

/dev/hda:
 multcount    = 16 (on)
 IO_support  =  3 (32-bit w/sync)
 unmaskirq    =  1 (on)
 using_dma    =  1 (on)
 keepsettings =  0 (off)
 readonly    =  0 (off)
 readahead    = 256 (on)
 geometry    = 38752/16/63, sectors = 20000000000, start = 0

#hdparm -i /dev/hda

/dev/hda:

 Model=Maxtor 2B020H1, FwRev=WAH21PB0, SerialNo=B156YSWE
 Config={ Fixed }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57
 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=39062500
 IORDY=on/off, tPIO={min:120,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 udma3 udma4 *udma5
 AdvancedPM=yes: disabled (255) WriteCache=enabled
 Drive conforms to: ATA/ATAPI-6 T13 1410D revision 0:

 * signifies the current active mode

with any parameters of IO_support and multicount i have 100% CPU load when transfer from one hdd to another. both hdd udma5 with dma enabled.
any suggestions?

ps/ sorry for bad english


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