Re: 2.6.1 "clock preempt"?

[timothy parkinson <t _at_ xxxxxxxxxxxxxxxxxxxx>]

su -c "/usr/sbin/hdparm /dev/hda"
Password:

/dev/hda:
 multcount    = 16 (on)
 IO_support   =  1 (32-bit)
 unmaskirq    =  0 (off)
 using_dma    =  0 (off)
 keepsettings =  0 (off)
 readonly     =  0 (off)
 readahead    = 256 (on)
 geometry     = 65535/16/63, sectors = 156301488, start = 0

but...

su -c "/usr/sbin/hdparm -d1 /dev/hda"
Password:

/dev/hda:
 setting using_dma to 1 (on)
 HDIO_SET_DMA failed: Operation not permitted
 using_dma    =  0 (off)

it's an 80gig western digital from about 2-3 years ago.


On Thu, Jan 22, 2004 at 11:54:02AM -0800, john stultz wrote:
> On Thu, 2004-01-22 at 11:50, timothy parkinson wrote:
> > well, it does *say* the following:
> > 
> >   ..... host bus clock speed is 133.0266 MHz.
> >   checking TSC synchronization across 2 CPUs: passed.
> >   Starting migration thread for cpu 0
> 
> That looks fine then. 
> 
> > is there a good way to check IDE PIO?
> 
> Run  "/sbin/hdparm /dev/hdX" and look for "using_dma = 0".
> 
> thanks
> -john
> 
> 
> 
> 
> 
> 
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