Re: DMA not permitted since 2.6.14
Le lundi 12 décembre 2005 à 15:29 +0100, Hendrik Sattler a écrit :
> David LIMA wrote:
> > Le dimanche 11 décembre 2005 à 23:52 +0100, Hendrik Sattler a écrit :
> >> David LIMA wrote:
> >> >
> >> > I'm running Debian SID with linux-image-2.6-686, since few days i'm
> >> > facing DMA problems after upgrading kernel to 2.6.14 (from stock).
> >> > Hdparm reports "operation not permitted" when I try do activate DMA.
> >> >
> >> > I have read http://lists.debian.org/debian-user/2005/11/msg00410.html
> >> > and recompile my kernel but still same issue.
> >> [...]
> >> > /dev/hda:
> >> > UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 udma6
> >> >
> >> > /dev/hdc:
> >> > UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 udma6
> >> > * signifies the current active mode
> >> >
> >> > Has someone any clue about this problem that slow down my system ?
> >>
> >> Actually, no clue what you are complaining about: both drives run with
> >> UDMA5, there not much more what you can enable with respect to DMA
> >> transfers.
> >
> > For sure, DMA is not running, my system is very slow each time I access
> > my disks (CPU eating).
>
> What IDE hardware do you have (lspci), what modules are loaded (lsmod). Maybe
> you use a generic IDE driver instead of one for your chipset.
Hi Hendrik,
It was on my original post ... someone cut it off ;)
http://lists.debian.org/debian-user/2005/12/msg01076.html
> Since yaird or initramfs-tools are used with Debian's 2.6.14, which one are
> you using to create the initrd or initramfs content?
>
> HS
>
I don't know which one, I use make-kpkg 1.94 from SID
Cheers
David LIMA
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