打开硬盘DMA失败？

cbnsjtu

[root@localhost cbn]# /sbin/hdparm -d1 -X68 -c3 -m16 /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 68 (UltraDMA mode4)
multcount    = 16 (on)
IO_support   =  3 (32-bit w/sync)
using_dma    =  0 (off)
请问这个是怎么回事情啊，是不是我的主板不支持，怎么看主本支持不支持啊？

georgek

不清楚~~ 去掉 -X68 可不可以?

nbxmedia

自己编译内核的话，enable dma by default选上没？
是不是用root用户？

cbnsjtu

CONFIG_GENERIC_ISA_DMA=y是不是这个？

Qlin

我的硬盘是133的。。请问参数是不是要改成都 X70 啊？？

cbnsjtu

#
# IDE chipset support/bugfixes
#
# CONFIG_BLK_DEV_CMD640 is not set
# CONFIG_BLK_DEV_IDEPNP is not set
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_IDEPCI_SHARE_IRQ is not set
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_RZ1000=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
CONFIG_IDEDMA_PCI_AUTO=y
# CONFIG_IDEDMA_ONLYDISK is not set
# CONFIG_IDEDMA_PCI_WIP is not set
CONFIG_BLK_DEV_ADMA=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CY82C693 is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_SC1200 is not set
CONFIG_BLK_DEV_PIIX=y
# CONFIG_BLK_DEV_NS87415 is not set
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SIS5513 is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_IDEDMA_IVB is not set
CONFIG_IDEDMA_AUTO=y
# CONFIG_DMA_NONPCI is not set
# CONFIG_BLK_DEV_HD is not set

cbnsjtu

帮我看看对不对啊，谢谢，是2.6的内核

georgek

兄弟用什麼主板呢?

cbnsjtu

是技嘉的GA0-6VXE7+
VIA Apollo Pro Family AGPset多谢

georgek

這裡說明你的主板用via 的chipset 只支援dma33/66, 但你的config 沒有打開via 的支援呢
http://www.gigabyte.com.tw/Mothe ... ducts_GA-6VXE7+.htm