Subject: Re: Help testing for USB ethernet/xHCI regression

From: Mark Lord <[email-masked]>
Date: Thu, 30 Jan 2014 21:32:49 -0500

On 14-01-30 06:26 PM, Sarah Sharp wrote:
> On Thu, Jan 30, 2014 at 05:20:40PM -0500, Mark Lord wrote:
>> On 14-01-30 04:41 PM, Sarah Sharp wrote:
>>>
>>> Mark and David, can you pull the 3.13-td-changes-reverted branch again,
>>> and see if the latest patch fixes your issue?  It disables scatter
>>> gather for the ax88179_178a device, but only when it's operating at USB
>>> 3.0 speeds.
>>
>> As expected, this works just fine.
> 
> Did it work when plugged into a USB 2.0 hub?

Curiosity, NO.  Dies almost immediately when run at USB 2.0 Hi-Speed.
With a USB 2.0 hub, with a USB 2.0 port on a USB 3.0 hub,
and with a USB 2.0 extension cable in place of a hub.

Near instant hangs.

Plugged directly to the USB 3.0 port, it works fine.
-- 
Mark Lord
Real-Time Remedies Inc.
[email-masked]