Hi Maximilian!
Thank you for your quick reply.
maximilian attems <debian@sternwelten.at>:
> On Fri, 17 Jun 2005, Erik Schanze wrote:
> > Without this option it runs only on UDMA33, because I need to force
> > UDMA100 on this chipset.
> >
> > Now I see the warning during boot:
> > "ide_setup: ide0=ata66 -- OBSOLETE OPTION, WILL BE REMOVED SOON!"
> > so I wonder which option will replace the obsolete one?
> >
> > idebus=66 didn't help.
> >
> > It is not a real bug for now, but will cause problems in future, so
> > please look for a prevention, please.
>
> please send dmesg after boot of latest kernel-image
> and the output of lspci -v
>
It is an ACER Travelmate 291 LCi.
I attached dmesg with ide0 option, without it and 'lspci -v' output.
I played a little bit with:
- newest Debian-Kernel 2.6.8 (testing, where I come from to unstable),
- Kernel 2.6.11 (build from kernel-source-2.6.11, debian-logo-patch applied
and HZ set to 100 in <kernelsource>/include/asm-i386/param.h) and
- hdparm.
On Kernel 2.6.8 the option "ide0=ata66" is required to be able to put HD in
UltraDMA mode3/4/5 (it is done on boot automagicly).
Without it refuse to set these levels with hdparm (-X67 till -X69).
Error message "ide0: Speed warnings UDMA 3/4/5 is no functional."
On kernel 2.6.11 the option is not required, because UltraDMA levels till
mode5 are possible without this option. Hdaprm does not complain of setting
it (-X69), so the option seems needless.(-> obsolete?)
I have no idea, if it is only a cosmetic issue in boot messages that there is
shown "(UDMA33)" and the chipset runs on UDMA100 though or a really drawback.
My notebook HD seems too slow to determine it:
'$ hdparm -t /dev/hda' gives ~23,9 MB/sec in "UltraDMA mode2" (hdparm -X66)
and all above levels till "UltraDMA mode5" -X69, so I think my HD is on the
limit.
Desktop-PCs with similar chipset, that also needed this option maybe give
other results, because of its faster HDs.
Perhaps upstream can clearify?
Please feel free to ask for further information.
Kindly regards,
Erik
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