Date: Wed, 11 Feb 2009 16:29:38 -0800 From: Alfred Perlstein <alfred@freebsd.org> To: "M. Warner Losh" <imp@bsdimp.com> Cc: freebsd-usb@freebsd.org Subject: Re: USB2: umass not detected correctly, axe not transmitting Message-ID: <20090212002938.GM68801@elvis.mu.org> In-Reply-To: <20090211.163454.1678771438.imp@bsdimp.com> References: <sa64oz1lacr.wl%tamaru@myn.rcast.u-tokyo.ac.jp> <200902110954.37659.hselasky@c2i.net> <20090211225701.GL68801@elvis.mu.org> <20090211.163454.1678771438.imp@bsdimp.com>
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* M. Warner Losh <imp@bsdimp.com> [090211 15:37] wrote: > In message: <20090211225701.GL68801@elvis.mu.org> > Alfred Perlstein <alfred@freebsd.org> writes: > : * Hans Petter Selasky <hselasky@c2i.net> [090211 00:52] wrote: > : > Hi, > : > > : > On Wednesday 11 February 2009, Hiroharu Tamaru wrote: > : > > Hi, > : > > > : > > I have an Atom Z530 semi-embedded system and tried the new USB2 stack. > : > > I found some oddities and decided to report here. > : > > > : > > It is running 8.0-CURRENT as of yesterday, and I have GENERIC and USB2 > : > > kernels to test with. I am testing with two usb devices: > : > > > : > > umass0: <JetFlash Mass Storage Device, class 0/0, rev 2.00/1.00, addr 2> on > : > > usbus3 axe0: <ASIX Electronics AX88178, rev 2.00/0.01, addr 3> on usbus3 > : > > > : > > First about the USB memory stick: > : > > > : > > 1) I setup a bootable USB memory stick, and this system > : > > boots off umass da0 if I have the old USB1 kernel. > : > > However, with USB2 kernel, it does not detect da0 at its final stage, > : > > and fails to find the root filesystem. > : > > I mean that the 'da0 at umass-sim0 bus 0 target 0 lun 0' message is not > : > > shown, and it is not listed in the kernel detected list of disks at > : > > 'mountroot>' prompt (shown by typing '?'). > : > > : > This is a known issue, see: > : > > : > http://wiki.freebsd.org/USB > : > : Is this the "delay in mountroot patch"? If so, I think it should go > : in. Can you send to Andrew for commit? If he's not available, please > : remind me to commit it. > > That patch needs comments that say it is a workaround because we don't > have a way to signal the mountroot code that all my configuration is > done. This is a problem for all hot-plug technologies... > > but other than a comment, I'm cool with that patch going in. Agreed. Will do. -- - Alfred Perlstein
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