wow great is working not show up the message ,
i found in manual link :
WD(4) OpenBSD Programmer's Manual WD(4)
NAME
wd - WD100x compatible hard disk driver
SYNOPSIS
wd* at wdc? flags 0x0000
wd* at pciide? flags 0x0000
DESCRIPTION
The wd driver supports hard disks which emulate the Western Digital
WD100x. This includes standard MFM, RLL, ESDI, IDE, and EIDE drives, as
well as Serial ATA drives, and PCMCIA/CF storage media.
The flags are used only with controllers that support DMA operations and
mode settings (like some pciide(4) controllers). The lowest order
(rightmost) nibble of the flags define the PIO mode to use. The next
four bits indicate the DMA mode and the third nibble the UltraDMA mode.
For each set of four bits, the 3 lower bits define the mode to use and
the last bit must be set to 1 for this setting to be used. For DMA and
UltraDMA, 0xf (1111) means ``disable''. For example, a flags value of
0x0fac (1111 1010 1100) means ``use PIO mode 4, DMA mode 2, disable
UltraDMA''. The special setting 0x0000 means ``use whatever the drive
claims to support''.
But PIO mode is more slowest than udma , how to chek perfomance the
cf card in linux using hdparm how about in openbsd ( test cf card ) .
On Mon, Jun 30, 2008 at 2:46 PM, Stuart Henderson <[EMAIL PROTECTED]> wrote:
> On 2008-06-30, sonjaya <[EMAIL PROTECTED]> wrote:
>> I have CF ( compact Flash ) Vgen 1G , and converter ide to cf . I try
>> install openbsd 4.3 in cf and succesfully and try first boot i get
>> error message like this bellow:
>> how to solved this ?
>
> Your CF card supports DMA transfers, but the adapter doesn't
> have the correct lines wired up.
>
> http://marc.info/?l=soekris-tech&m=117879934817861&w=2
>
>> pciide0:0:0: bus-master DMA error: missing interrupt, status=0x21
>> wd0: transfer error, downgrading to PIO mode 4
>> wd0(pciide0:0:0): using PIO mode 4
>> wd0c: device timeout reading fsbn 0 (wd0 bn 0; cn 0 tn 0 sn 0), retrying
>> wd0: soft error (corrected)
>> root on wd0a swap on wd0b dump on wd0b
>
> Ah good, at least your card implements the RESET command so
> the automatic downgrade to PIO works.
>
>
--
sonjaya
http://sicute.blogspot.com
