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

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Message-ID: <CA+O4pCL8gUqFs7zTJZ+0UftOq_jALpg=rsmz3hSypOPr2qZg7Q@mail.gmail.com>
Date:	Tue, 11 Feb 2014 19:29:47 +0100
From:	Markus Rechberger <mrechberger@...il.com>
To:	Robert Hancock <hancockrwd@...il.com>
Cc:	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>,
	Greg KH <gregkh@...uxfoundation.org>
Subject: Re: [BUGREPORT] Linux USB 3.0

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
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