On Sun, Apr 29, 2001 at 09:44:51PM +0200, Sancho Dauskardt wrote:
>
>
> > > Trying to optimize following sequence:
> > > - send command to bulk ep 4. I call this the 'master-urb'
> > > - recieve data from bulk ep 2. I call this the 'slave-urb'
> >
> >Is there a reason you can't submit the read urb to ep 2 before sending
> >the command to ep 4?
>
> Good idea...
> Well, what can i say. mount'ing the 64MB SmartMedia now takes 8.5 sec (vs
> 16.6) !
> But a 'cat /mnt/sm/* >/dev/null' still freezes the machine after 10-20 sec.
> I've tried it with both uhci + usb-uhci (2.4.4). Basically this is the same
> behavior as what i described under "a)" - except that they don't instantly
> freeze.
When the machine freezes, does the Alt-SysRq key work? If so you can
use that to see where you are looping.
Sounds like you have a code error somewhere. Good luck.
greg k-h
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