linux-kernel - Re: [V4.0.0-rc3] Xhci Regression: ERROR Transfer event TRB DMA ptr not part of current TD

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Message-ID: <55014F1F.8020801@linux.intel.com>
Date:	Thu, 12 Mar 2015 10:32:31 +0200
From:	Mathias Nyman <mathias.nyman@...ux.intel.com>
To:	Jörg Otte <jrg.otte@...il.com>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	USB list <linux-usb@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Mauro Carvalho Chehab <mchehab@....samsung.com>
Subject: Re: [V4.0.0-rc3] Xhci Regression: ERROR Transfer event TRB DMA ptr
 not part of current TD

On 11.03.2015 18:16, Jörg Otte wrote:
> 2015-03-11 12:01 GMT+01:00 Jörg Otte <jrg.otte@...il.com>:
>> 2015-03-10 18:04 GMT+01:00 Mathias Nyman <mathias.nyman@...ux.intel.com>:
>>> On 10.03.2015 17:36, Jörg Otte wrote:
>>>
>>>>>> I'd suspect one of these two patches:
>>>>>>
>>>>>> commit 45ba2154d12fc43b70312198ec47085f10be801a
>>>>>>     xhci: fix reporting of 0-sized URBs in control endpoint
>>>>>>
>>>>>> commit 27082e2654dc148078b0abdfc3c8e5ccbde0ebfa
>>>>>>     xhci: Clear the host side toggle manually when endpoint is 'soft reset'
>>>>>>
>>>>
>>>> Revert the commits.
>>>> The second one  "xhci: Clear the host side..."  is it !
>>>>
>>>
>>> Yes, thank you
>>>
>>> Seems that It wasn't mature enough, I'll revert it.
>>>
>>> From your logs I can see what went wrong,
>>>
>>> If you still have some time, could you try out a patch (attached) and see if it solves the
>>> issue for you. (on top of clean 4.0-rc3). I can't reproduce it with my own USB DVB-T device
>>
>> Problems:
>> error: patch failed: drivers/usb/host/xhci.c:2972
>> error: drivers/usb/host/xhci.c: patch does not apply
>>
>> For me the patch looks formally good.
>> No idea why.
> 
> OK, finally I got it applied successfully.
> I can confirm now it works for me.
> 

Great, Thanks

-Mathias 

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