I'll be damned. That worked! Does this indicate a linux bug since it
doesn't work with DMA enabled? The drive supports DMA mode 2 as well as
PIO and the docs even say to enable DMA to "achieve top speeds for reading
and writing", which only makes sense. The docs have you enable DMA on
windoze and it works there.
FYI:
hdparm -i /dev/hdc
/dev/hdc:
HDIO_GET_MULTCOUNT failed: Input/output error
Model=PLEXTOR CD-R PX-W8432T, FwRev=1.07, SerialNo=
Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=0(?), BuffSize=0kB, MaxMultSect=0
DblWordIO=no, OldPIO=4, DMA=yes, OldDMA=2
(maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
tDMA={min:120,rec:120}, DMA modes: sword0 sword1 sword2 mword0 mword1
*mword2
IORDY=on/off, tPIO={min:180,w/IORDY:120}, PIO modes: mode3 mode4
-Jason
On Thu, 4 May 2000, Pasi [iso-8859-1] Sjöholm wrote:
> >In the meantime, I have upgraded my whole system and moved the plextor
> >drive to the new system and still get the same errors when I try to mount
> >a CD using ide-scsi. This rules out the motherboard possibility so it's
> >either the drive or linux...I'm leaning toward linux since it seems to
> >work under windows. I'm running 2.2.15pre19 now and still have the prob.
> >Anyone with any suggestions for debugging this?
>
> Try disabling DMA on that drive... it helped on me and lots of other
> buddies. =)
> 'hdparm -d0 /dev/hdx' x=your drive. Tell me if that worked it out.
>
> --Pasi Sjöholm
>
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