[Voyage-linux] v0.6 on WRAP - dma errors

[Edwin Whitelaw]

Here's the dmesg output...

hda: 1000944 sectors (512 MB) w/1KiB Cache, CHS=993/16/63
 hda:<4>hda: dma_timer_expiry: dma status == 0x21
hda: DMA timeout error
 ide_dma_end dma_stat=21 err=1 newerr=0
hda: dma timeout error: status=0x58 { DriveReady SeekComplete DataRequest }
ide: failed opcode was: unknown
hda: DMA disabled
ide0: reset: success
 hda1
hda: dma_timer_expiry: dma status == 0x21
hda: DMA timeout error
 ide_dma_end dma_stat=21 err=1 newerr=0
hda: dma timeout error: status=0x58 { DriveReady SeekComplete DataRequest }
ide: failed opcode was: unknown
hda: DMA disabled
ide0: reset: success
hda: dma_timer_expiry: dma status == 0x21
hda: DMA timeout error
 ide_dma_end dma_stat=21 err=1 newerr=0
hda: dma timeout error: status=0x58 { DriveReady SeekComplete DataRequest }
ide: failed opcode was: unknown
hda: DMA disabled
ide0: reset: success
hda: dma_timer_expiry: dma status == 0x21
hda: DMA timeout error
 ide_dma_end dma_stat=21 err=1 newerr=0
hda: dma timeout error: status=0x58 { DriveReady SeekComplete DataRequest }
ide: failed opcode was: unknown
hda: DMA disabled
ide0: reset: success
udevd version 125 started

Punky Tse wrote:
> Hi Edwin,
>
> Since you didn't attach the dmesg I can't trouble what had happen.  
> May be you can try the follow kernel parameter and tell us the result
>
> all_generic_ide
> libata.dma=0
>
> Regards,
> Punky
>
> Edwin Whitelaw wrote:
>> I'm trying to turn off DMA for 0.6 on a WRAP board with
>>
>> kernel /vmlinuz root=LABEL=ROOT_FS  console=ttyS0,38400n8 ide=nodma
>>
>> but the errors (and lengthy boot time) still persist.
>>
>> Am I missing something?
>>
>> Edwin
>>

-- 
<=+=+=+==+=+=+==+=+=+=+=+=+=+=+=>
Edwin Whitelaw, P.E.
New River Valley Unwired, LLC
2200 Lonesome Dove Dr
Christiansburg, VA 24073
540-239-0318