linux-kernel - Re: [BUGREPORT] Linux USB 3.0

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Message-ID: <20140211184511.GA32425@kroah.com>
Date:	Tue, 11 Feb 2014 10:45:11 -0800
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Markus Rechberger <mrechberger@...il.com>
Cc:	Robert Hancock <hancockrwd@...il.com>,
	David Laight <David.Laight@...lab.com>,
	Sarah Sharp <sarah.a.sharp@...ux.intel.com>,
	LKML <linux-kernel@...r.kernel.org>,
	USB list <linux-usb@...r.kernel.org>,
	Alan Stern <stern@...land.harvard.edu>
Subject: Re: [BUGREPORT] Linux USB 3.0

On Tue, Feb 11, 2014 at 07:29:47PM +0100, Markus Rechberger wrote:
> On Mon, Feb 10, 2014 at 12:15 AM, Robert Hancock <hancockrwd@...il.com> wrote:
> > On 08/02/14 03:00 AM, Markus Rechberger wrote:
> >>
> >> On Tue, Feb 4, 2014 at 10:31 AM, David Laight <David.Laight@...lab.com>
> >> wrote:
> >>>
> >>> From: Markus Rechberger
> >>>>>>
> >>>>>> Dec 27 23:23:50 solist kernel: [   36.118245] xhci_hcd 0000:00:14.0:
> >>>>>> ERROR Transfer event TRB DMA
> >>>>
> >>>> ptr
> >>>>>
> >>>>>
> >>>>> These messages might be harmless.  The 3.0 kernel contains a fix for
> >>>>> Intel Panther Point xHCI hosts that suppresses those messages, commit
> >>>>> ad808333d8201d53075a11bc8dd83b81f3d68f0b "Intel xhci: Ignore spurious
> >>>>> successful event."
> >>>>>
> >>>>> A later commit extends that to all xHCI 1.0 hosts, commit
> >>>>> 07f3cb7c28bf3f4dd80bfb136cf45810c46ac474 "usb: host: xhci: Enable
> >>>>> XHCI_SPURIOUS_SUCCESS for all controllers with xhci 1.0"  That was
> >>>>> queued for 3.11 and marked to be backported into stable kernels as old
> >>>>> as 3.0.
> >>>
> >>>
> >>> I see the same error message on the 0.96 ASMedia controller when
> >>> the rx buffers for the ax88179_178a driver cross 64k boundaries.
> >>>
> >>> So this isn't confined to 1.0 controllers.
> >>>
> >>
> >> Sarah,
> >>
> >> since there is no response yet, is there anyone at Intel dedicated at
> >> working on USB 3.0?
> >> We are also getting more and more negative USB 3.0 feedback with Linux
> >
> >
> > Still nobody appears to have provided the requested debugging information
> > that was requested. So there is not much that can be done upstream to debug
> > things based only on vague reports, especially when not using current kernel
> > versions.
> >
> 
> Next kernel crash report, this time a Synology NAS System:
> http://support.sundtek.com/index.php/topic,1511.0.html

That kernel has a closed source kernel module loaded, no community
member can look at it, sorry, please get support from the company that
wrote that module.

greg k-h
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