On Sun, 15 Aug 2004, Wes Janzen wrote:

> Nothing like a quick reply, I've unfortunately had very little time to 
> even sit down at my computer to figure this out.  I have tried 
> 2.6.8-rc2-mm2 which has the same problem.  I unplugged both hubs before 
> booting and then plugged everything in one at a time after the system 
> was finished loading.  That seemed to work, but not really since all my 
> usb devices then appeared as ub? (a-h) instead of the appropriately 
> named devices.

Sounds like you've got the ub driver installed (look under the block 
devices part of the kernel configuration or for the ub module).

>  So I tried 2.6.8-rc4-mm1 which I'm using now.   Again I 
> had to unplug everything to boot.  I plugged everything in one hub 
> one-by-one.  Due to the location of the second hub (and the lack of 
> time), I didn't individually plug each device in and it seems to have 
> locked up (khubd goes D) on detecting my Logitech joystick.  Now khubd 
> is stuck in the d state (as well as lsusb from me later).  At least now 
> it's back to detecting devices appropriately so at least I can use a 
> mouse in X.  Now I'm getting these messages every few minutes in my log:
> 
> Aug 15 06:05:13 voice drivers/usb/host/ehci-sched.c: reused previous qh 
> d6a00200 schedule
> Aug 15 06:05:13 voice drivers/usb/host/ehci-sched.c: scheduled qh 
> d6a00200 usecs 8/15 period 8.0 starting 5.0 (gap 1)
> 
> It says exactly the same thing every time, but I've not had to time to 
> look at ehci-sched.c to find out what that message means.
> 
> Anyway, the printer doesn't seem to be at fault since it was turned off 
> this time around.

You didn't even provide a dmesg for me to go on, so this is strictly 
guesswork...  You could try applying the patch from this message:

http://marc.theaimsgroup.com/?l=linux-usb-devel&m=109241303306477&w=2

Alan Stern



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