> Date: Tue, 5 Oct 2004 11:25:04 +0200
> From: Dominik Karall <[EMAIL PROTECTED]>
> To: Andrew Morton <[EMAIL PROTECTED]>
> Cc: [EMAIL PROTECTED]
> Subject: Re: 2.6.9-rc3-mm2
> 
> ...
> i get a lot of usb errors on boot. they appear since -rc2-mm1.
> below the relevant part of dmesg output.

It's safe to ignore those particular messages.

The "string descriptor 0 read error: -113" messages just mean
that the device is suspended, so usbcore won't even try to
talk to it.  The USB "suspend" state means that devices are
in a low power mode; it takes at least 30 msec to return them
to full power, so that the host can talk to them.

That's slightly odd for a root hub, since it actually COULD talk
to it (since in this case the host controller is still accessible
through PCI MMIO), but not odd enough for me to want to
spend time trying to add even more root hub special cases. 


> i'm not sure if the "Neighbour table  
> overflow" messages are also relevant?

Not to any USB issues.  Though you're getting enough of
those messages to worry me, that's for sure.

> ... 
> usb usb3: string descriptor 0 read error: -113
> usb usb3: string descriptor 0 read error: -113
> usb usb3: string descriptor 0 read error: -113
> usb usb1: string descriptor 0 read error: -113
> usb usb1: string descriptor 0 read error: -113
> usb usb1: string descriptor 0 read error: -113
> ...
> usb usb3: string descriptor 0 read error: -113
> usb usb3: string descriptor 0 read error: -113
> usb usb3: string descriptor 0 read error: -113
> usb usb1: string descriptor 0 read error: -113
> usb usb1: string descriptor 0 read error: -113
> usb usb1: string descriptor 0 read error: -113
> usb usb3: string descriptor 0 read error: -113
> usb usb3: string descriptor 0 read error: -113
> usb usb3: string descriptor 0 read error: -113
> usb usb1: string descriptor 0 read error: -113
> usb usb1: string descriptor 0 read error: -113
> usb usb1: string descriptor 0 read error: -113
> usb usb3: string descriptor 0 read error: -113
> usb usb3: string descriptor 0 read error: -113
> usb usb3: string descriptor 0 read error: -113
> usb usb1: string descriptor 0 read error: -113
> usb usb1: string descriptor 0 read error: -113
> usb usb1: string descriptor 0 read error: -113
> usb usb3: string descriptor 0 read error: -113
> usb usb3: string descriptor 0 read error: -113
> usb usb3: string descriptor 0 read error: -113
> usb usb1: string descriptor 0 read error: -113
> usb usb1: string descriptor 0 read error: -113
> usb usb1: string descriptor 0 read error: -113

I've no idea what was trying so hard to read strings, but maybe
those particular messages -- for suspended devices -- should
get filtered out.


> Neighbour table overflow.
> Neighbour table overflow.
> Neighbour table overflow.
> Neighbour table overflow.
> Neighbour table overflow.
> Neighbour table overflow.
> Neighbour table overflow.
> Neighbour table overflow.
> Neighbour table overflow.
> Neighbour table overflow.
> printk: 64315 messages suppressed.
> 


> btw, no usb devices are connected.

That wasn't actually what your boot messages said; it said
there was a usb-storage device.  Maybe that's a built-in
card-reader on usb2?  You'll notice that only usb1 and usb3
devices reported the "-113" errors.

- Dave


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