USB port way too slow [was: Re: [ltp] Software suspend, ibm_acpi and tpb]

[Eric Van Buggenhaut]

On Fri, Dec 16, 2005 at 08:41:03PM +0100, Tino Keitel wrote:
> On Fri, Dec 16, 2005 at 16:54:26 +0100, Eric Van Buggenhaut wrote:
> > On Fri, Dec 16, 2005 at 11:37:42AM +0100, Arnaud Fontaine wrote:
> > > Hello,
> > > 
> > > I am using software suspend included in the kernel, it works fine on my
> > > T43 with suspend to ram and suspend to disk too. However, after
> > > restoring the system using suspend to disk, ibm_acpi and tpb doesn't
> > > work anymore. I have compiled ibm_acpi as kernel module and it works
> > > like a charm with suspend to ram. Any idea ?
> > 
> > I have another problem, when resuming after suspend2, i lose usb 
> > support for usb mass-storage devices, iow i can't mount my usb pen 
> > anymore. Is this a known issue ? Any workaround ?
> 
> USB has (or at least had) known problems with any type of suspend.
> That's why it's recommended to build USB support as modules, the
> hibernate script already has them in the blacklist.
> 

Thanks, look like it's fixed.

I have another problem though, it's the USB transfer going excesively 
slow when transfering data. With a USB2.0 pendrive, it takes me 2 min 
(!!!) to transfer 14M:

[eric@atto:~/devel/d-i]$ time cp * /mnt/usbpen/   

real    2m7.745s
user    0m0.000s
sys     0m0.448s

[eric@atto:~/devel/d-i]$ du -h /mnt/usbpen/
14M     /mnt/usbpen/

How can that be ???

-- 
Eric VAN BUGGENHAUT
Eric.VanBuggenhaut@AdValvas.be