Date: Sat, 16 Nov 2013 23:00:36 +0100 From: Hans Petter Selasky <hps@bitfrost.no> To: Peter Jeremy <peter@rulingia.com>, freebsd-usb@freebsd.org Subject: Re: USB bus stopping Message-ID: <5287EB04.9000205@bitfrost.no> In-Reply-To: <20131116211752.GA96782@server.rulingia.com> References: <20131116211752.GA96782@server.rulingia.com>
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On 11/16/13 22:17, Peter Jeremy wrote: > 07:34:26.147358 usbus4.2 DONE-BULK-EP=00000002,SPD=HIGH,NFR=1,SLEN=0,IVAL=0,ERR=0 > 07:34:26.147420 usbus4.2 SUBM-BULK-EP=00000002,SPD=HIGH,NFR=1,SLEN=20480,IVAL=0 > 07:35:29.624720 usbus4.2 DONE-BULK-EP=00000002,SPD=HIGH,NFR=0,SLEN=0,IVAL=0,ERR=TIMEOUT > 07:35:29.624742 usbus4.2 SUBM-CTRL-EP=00000000,SPD=HIGH,NFR=1,SLEN=8,IVAL=0 Hi, You possibly need a HW USB analyzer to go further with this. If you can prove that the device is infinitly NAK'ing the USB transfer, which I think it is, not receiving the data it should, then it's a device fault, which is not that uncommon. Some devices don't handle stress simply. Else there are some known issues on the host side. See: hw.usb.ehci.lostintrbug For example. --HPS
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