Re: External USB2 HDD affects speed hda

[Rene Herman <rene.herman@keyaccess.nl>]

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.