From owner-freebsd-usb@FreeBSD.ORG Tue Dec 27 14:53:38 2011 Return-Path: Delivered-To: freebsd-usb@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0D8A71065676 for ; Tue, 27 Dec 2011 14:53:38 +0000 (UTC) (envelope-from hselasky@c2i.net) Received: from swip.net (mailfe01.c2i.net [212.247.154.2]) by mx1.freebsd.org (Postfix) with ESMTP id 8E7298FC19 for ; Tue, 27 Dec 2011 14:53:37 +0000 (UTC) X-T2-Spam-Status: No, hits=-0.2 required=5.0 tests=ALL_TRUSTED, BAYES_50 Received: from [188.126.198.129] (account mc467741@c2i.net HELO laptop002.hselasky.homeunix.org) by mailfe01.swip.net (CommuniGate Pro SMTP 5.4.2) with ESMTPA id 223936034; Tue, 27 Dec 2011 15:53:34 +0100 From: Hans Petter Selasky To: =?utf-8?b?0JzQvtC80YfQuNC7INCY0LLQsNC90L7Qsg==?= Date: Tue, 27 Dec 2011 15:51:10 +0100 User-Agent: KMail/1.13.5 (FreeBSD/8.2-STABLE; KDE/4.4.5; amd64; ; ) References: <86ipl3dl5q.wl%momchil@xaxo.eu> <86fwg6w0k1.wl%momchil@xaxo.eu> <86aa6egjsq.wl%momchil@xaxo.eu> In-Reply-To: <86aa6egjsq.wl%momchil@xaxo.eu> X-Face: *nPdTl_}RuAI6^PVpA02T?$%Xa^>@hE0uyUIoiha$pC:9TVgl.Oq,NwSZ4V" =?utf-8?q?=7CLR=2E+tj=7Dg5=0A=09=25V?=,x^qOs~mnU3]Gn; cQLv&.N>TrxmSFf+p6(30a/{)KUU!s}w\IhQBj}[g}bj0I3^glmC( =?utf-8?q?=0A=09=3AAuzV9=3A=2EhESm-x4h240C=609=3Dw?= MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <201112271551.10626.hselasky@c2i.net> Cc: freebsd-usb@freebsd.org Subject: Re: USB problems with 8.2 X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Dec 2011 14:53:38 -0000 On Tuesday 27 December 2011 15:40:05 =D0=9C=D0=BE=D0=BC=D1=87=D0=B8=D0=BB = =D0=98=D0=B2=D0=B0=D0=BD=D0=BE=D0=B2 wrote: > At Tue, 27 Dec 2011 15:29:02 +0100, >=20 > =D0=9C=D0=BE=D0=BC=D1=87=D0=B8=D0=BB =D0=98=D0=B2=D0=B0=D0=BD=D0=BE=D0=B2= wrote: > > At Tue, 27 Dec 2011 15:17:42 +0100, > >=20 > > Hans Petter Selasky wrote: > > > Did you check for errors in dmesg? > > >=20 > > > Also have you tried setting: > > >=20 > > > hw.usb.ehci.lostintrbug=3D1 >=20 > does not seem to help at all, it seems to make things even worse - the > stalls become more frequent... other ideas? >=20 Hi, If you compile a kernel with "options USB_DEBUG". Then when the problem=20 appears, you enable umass debugging: sysctl hw.usb.umass.debug=3D15 OR: Check activity with usbdump upon failure: usbdump -i usbusX -vvv > log.txt cat log.txt | grep USB_ERR Some USB HDDs might have firmware failures. Most USB HDD enclosures are not= =20 100% hardware and usually contains a small CPU to do USB. =2D-HPS