linux-kernel - Re: pm_op(): usb_dev_suspend+0x0/0x10 returns -2 on USB device 8087:0020

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Date:	Fri, 26 Feb 2010 08:32:31 -0800
From:	Sarah Sharp <sarah.a.sharp@...ux.intel.com>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Ákos Maróy <akos@...oy.hu>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Kernel development list <linux-kernel@...r.kernel.org>,
	Greg KH <gregkh@...e.de>, USB list <linux-usb@...r.kernel.org>
Subject: Re: pm_op(): usb_dev_suspend+0x0/0x10 returns -2 on USB device
 8087:0020

On Fri, Feb 26, 2010 at 11:12:50AM -0500, Alan Stern wrote:
> On Thu, 25 Feb 2010, Sarah Sharp wrote:
> 
> > > at this point, rmmod xhci doesn't even work anymore, I get stuff during
> > > / around the rmmod like:
> > > 
> > > Feb 25 23:34:24 tonkachi kernel: [  230.133711] xhci_hcd 0000:02:00.0:
> > > remove, state 1
> > 
> > Aw, man, it looks like your xHCI disconnected from the bus.  Something
> > was seriously wrong with the hardware.
> 
> Why do you say that?  Isn't this exactly the sort of thing you expect 
> to see in the log when xhci-hcd is unloaded?

Yes, I forgot he was unloading the driver.  That's normal then.

Sarah Sharp
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