From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Lord Subject: Re: Help testing for USB ethernet/xHCI regression Date: Thu, 30 Jan 2014 21:32:49 -0500 Message-ID: <52EB0B51.4020407@pobox.com> References: <22081260.RNay0J72dY@athas> <20140129215408.GC5991@xanatos> <063D6719AE5E284EB5DD2968C1650D6D0F6ACF20@AcuExch.aculab.com> <20140130184412.GA3787@xanatos> <52EAAF6F.7070202@pobox.com> <20140130214133.GB14228@xanatos> <52EAD038.5020409@pobox.com> <20140130232629.GF14228@xanatos> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: Paul Zimmerman , David Laight , "renevant@internode.on.net" , "linux-usb@vger.kernel.org" , Greg Kroah-Hartman , "netdev@vger.kernel.org" To: Sarah Sharp Return-path: Received: from a-pb-sasl-quonix.pobox.com ([208.72.237.25]:43334 "EHLO sasl.smtp.pobox.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753635AbaAaCcy (ORCPT ); Thu, 30 Jan 2014 21:32:54 -0500 In-Reply-To: <20140130232629.GF14228@xanatos> Sender: netdev-owner@vger.kernel.org List-ID: 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. mlord@pobox.com