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Date:      Tue, 12 Jul 2016 16:58:55 +0200
From:      Hans Petter Selasky <hps@selasky.org>
To:        Karl Denninger <karl@denninger.net>, "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org>
Subject:   Re: Old problem still present on 11-ALPHA1 - Pi2
Message-ID:  <3d016e2b-d850-c135-7b39-16823a8aeecf@selasky.org>
In-Reply-To: <c3a46d02-ed63-e636-78b9-9e7274c0ef36@denninger.net>
References:  <32ad8bb3-f0a6-c86b-1b23-aae9af4442ea@denninger.net> <62d7d041-2de5-639f-5c1e-76f9682e6cc8@selasky.org> <5682bff2-3033-194a-67bf-32ba0cdada37@denninger.net> <20160711205855.GC34367@cicely7.cicely.de> <5f38e923-c1a1-8bb7-83cc-0de6404b6e47@denninger.net> <20160712093952.GA36104@cicely7.cicely.de> <c3a46d02-ed63-e636-78b9-9e7274c0ef36@denninger.net>

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On 07/12/16 16:33, Karl Denninger wrote:
> That's my assumption at this point; the claim of the flip is wrong.
> But.... data corruption anywhere in a driver is very very bad!

Hi,

usbdump -i usbusX -f Y.0 -s 65536 -vvv

Will dump all the USB traffic on endpoint 0, which is used to 
communicate with the SMSC phy over USB.

Try to turn on SMSC debugging first, and see if there are any errors or 
timeouts.

--HPS



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