Re: 2.9test9-mm1 and DAO ATAPI cd-burning corrupt

[Prakash K. Cheemplavam]

Nick Piggin wrote:
> Jens Axboe wrote:
>
> > On Thu, Nov 06 2003, Prakash K. Cheemplavam wrote:
> >
> > > > > > Heh indeed, maybe because the archs I use are still at 100. Looks
> > > > > > suspiciously like it's loosing timer interrupts, which would indeed
> > > > > > point to PIO.
> > > > > bash-2.05b# hdparm -I /dev/hdc
> > > >
> > > > -i please
> > > bash-2.05b# hdparm -i /dev/hdc
> > >
> > > /dev/hdc:
> > >
> > > Model=LITE-ON LTR-16102B, FwRev=OS0K, SerialNo=
> > > Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
> > > RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
> > > BuffType=unknown, BuffSize=0kB, MaxMultSect=0
> > > (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
> > > IORDY=yes, tPIO={min:227,w/IORDY:120}, tDMA={min:120,rec:120}
> > > PIO modes:  pio0 pio1 pio2 pio3 pio4
> > > DMA modes:  mdma0 mdma1 *mdma2
> > > AdvancedPM=no
> > >
> > > * signifies the current active mode
> > >
> > > The same: dma is active.
> >
> > Indeed, so you are ysing multiword mode 2. Can you try and do a dd from
> > the drive, while doing a vmstat 1? Also, does that show the jerky
> > behaviour?
>
> AFAIK, Prakash cannot reproduce this bad behaviour with mm1, only mm2 (is
> this right, Prakash?). So its something there (don't forget Andrew merges
> the latest bk with his releases too).


AFAIK, yes. Just too be 100% sure, I rather boot up mm1 and will do a 
test-run...

Prakash

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