linux-kernel - Re: OHCI unplug kernel crash in kernel 4.3, 4.4 and 4.5

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Message-Id: <20160228190511.GC5707@kroah.com>
Date:	Sun, 28 Feb 2016 19:05:12 +0000
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Stefani Seibold <stefani@...bold.net>
Cc:	linux-usb <linux-usb@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Joerg Roedel <jroedel@...e.de>,
	Oliver Neukum <oneukum@...e.com>
Subject: Re: OHCI unplug kernel crash in kernel 4.3, 4.4 and 4.5

On Sun, Feb 28, 2016 at 11:04:03AM -0800, Greg KH wrote:
> On Sun, Feb 28, 2016 at 10:24:32AM +0100, Stefani Seibold wrote:
> > I still reported this bug 6 Weeks ago... and i checked it know with the
> > current kernel 4.5.0-rc5. The bug is yet not fixed.
> > 
> > A unplug of an USB 1.0 OHCI controller express card will result in a
> > kernel crash. The express card is attached via thunderbolt and a sonnet
> > express card to thunderbolt adapter. The computer hangs after the
> > unplug, only a power down fix the situation.
> > 
> > This is the kernel log of a kernel 4.4 via netconsole:
> 
> Can you duplicate this without the nvidia driver loaded?

Oh, and without virtualbox, that is a horrid mess of total crap, NEVER
trust that code to do anything correctly.  I'm totally amazed that it
works at all, and it turns out, often times it really doesn't...

thanks,

greg k-h