关于硬盘DMA的问题请教

homehorse

[root@localhost root]# hdparm -d1 -m16 -c3 -X69 /dev/hda

/dev/hda:
setting 32-bit IO_support flag to 3
setting multcount to 16
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
setting xfermode to 69 (UltraDMA mode5)
multcount    = 16 (on)
IO_support   =  3 (32-bit w/sync)
using_dma    =  0 (off)
[root@localhost root]# hdparm /dev/hda

/dev/hda:
multcount    = 16 (on)
IO_support   =  3 (32-bit w/sync)
unmaskirq    =  0 (off)
using_dma    =  0 (off)
keepsettings =  0 (off)
readonly     =  0 (off)
readahead    =  8 (on)
geometry     = 4864/255/63, sectors = 78140160, start = 0
[root@localhost root]#



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为什么我的DMA 不允许开启  我看到网上说ATA100 的参数是-X69

homehorse

我自己来顶一下 只想知道个结果

broook

我也有这个问题，你解决了没有？