Very slow disk access via PCMCIA adapter

[Simon Atkinson]

Hi Peter

Thanks for responding with some solid advice. Apologies for being slow
to get back to you; I've been away on business for a few days.

I'll look into the IRQ conflicts on the laptop.

You mention trying  2.6.22.1 with pata_pcmcia, get udev and
pcmciautils and get rid of cardmgr.

I'm using a Knoppix live CD. I have had a look at the link:
http://www.kernel.org/pub/linux/utils/kernel/pcmcia/pcmcia.html

I'm not sure how to proceed though, as I'm using a live CD and not a
dristribution that is installed on a hard disk, which can be updated
easily. I presume the only way to go is to customise Knoppix and
create a 'revised' ISO with the necssary PCMCIA tools and burn that to
a CD? Are you a Knoppix user?

Using the existing live CD (Knoppix V5.1.1) I'm not experienced enough
in Linux to create a persistent directory and the scripts required to
load the necessary PCMCIA files/modules at start up.

I'd grateful for further help.

All the best

Simon


On 11/08/07, Peter Stuge <stuge-linux-pcmcia at cdy.org> wrote:
> On Sat, Aug 11, 2007 at 08:35:56AM +0100, Simon Atkinson wrote:
> > The stages described above take similar lengths of time when I
> > issue the equivalent commands via a terminal window at the command
> > line.
>
> This is the only metric that should be used to diagnose the problem.
>
>
> > Any ideas what the problem is?
>
> I think there are several.
>
>
> > cardmgr
>
> This is the first. cardmgr is deprecated and should not be used.
>
>
> > Linux version 2.6.19
>
> There are many newer kernels out there..
>
>
> > Yenta: ISA IRQ mask 0x06b8, PCI irq 11
>
> Everything in your laptop seems to use IRQ 11.
>
>
> > pcmcia: Detected deprecated PCMCIA ioctl usage from process: cardmgr.
> > pcmcia: This interface will soon be removed from the kernel; please
> > expect breakage unless you upgrade to new tools.
> > pcmcia: see http://www.kernel.org/pub/linux/utils/kernel/pcmcia/pcmcia.html
> > for details.
>
> So, please check that webpage out, and get rid of cardmgr.
>
>
> > pccard: PCMCIA card inserted into slot 1
> > cs: memory probe 0xa0000000-0xa0ffffff: excluding 0xa0000000-0xa0ffffff
> > cs: memory probe 0x60000000-0x60ffffff: clean.
> > pcmcia: registering new device pcmcia1.0
> > Probing IDE interface ide2...
> > hde: IBM-DSCM-10512, CFA DISK drive
> > ide2 at 0x100-0x107,0x10e on irq 3
> > hde: max request size: 128KiB
> > hde: 1052352 sectors (538 MB) w/60KiB Cache, CHS=1044/16/63
>
> For some reason the card gets irq 3 while the controller has irq 11.
>
>
> >  hde:<4>hde: lost interrupt
> > hde: lost interrupt
> > hde: lost interrupt
> > hde: lost interrupt
> >  hde1
> > ide-cs: hde: Vpp = 0.0
> > hde: lost interrupt
> > hde: lost interrupt
>
> And here is some fun. No interrupts are coming through, which
> probably leads to long timeouts here and there in the IDE code.
>
>
> Try 2.6.22.1 with pata_pcmcia, get udev and pcmciautils and get rid
> of cardmgr. That may just work out of the box.
>
>
> //Peter
>
> _______________________________________________
> Linux PCMCIA reimplementation list
> http://lists.infradead.org/mailman/listinfo/linux-pcmcia
>