Re: External USB2 HDD affects speed hda

[Rene Herman]

Rene Herman wrote:

(thread at http://marc.theaimsgroup.com/?t=111749614000002&r=1&w=2)

> David Brownell wrote:

> > -    if (!head->qh_next.qh) {
> > +    if (!head->qh_next.qh && !ehci->reclaim) {
>
>
> Thanks, but unfortunately no change. That is, still have that "Async" 
> status flag toggling on and off in /sys/class/usb_host/usb?/registers 
> (and the ~ 8MB/s drop in IDE throughput).

Maybe useful informateion: no problems when the disk is accessed through 
uhci-hcd at the same port. Only using it through ehci-hcd triggers the 
problem ("async" status flag toggling on/off, drop in IDE throughput).

Rene.



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