lexar usb media failure to attach

[Dan Langille]

On 6 Dec 2004 at 14:45, Barry Bouwsma wrote:

> 
> > > At 04:41 PM 05/12/2004, Dan Langille wrote:
> > > >I purchased a USB memory device last week.   It looks like it won't
> > > >work with FreeBSD 4.10-STABLE #1: Sun Jul 25 00:53:29 EDT 2004
> > > >Nov 30 22:03:05 laptop /kernel: umass0: LEXAR MEDIA JUMPDRIVE ELITE, rev 
> 
> > Can anyone recommend a USB thumb drive that they know works with 
> > FreeBSD 4.10 and 5.*?  I'll return this one ASAP.
> 
> I hope I don't sound like an advocate or anything, but is there a
> chance that you can try this with, say, NetBSD?  I've attached a
> good number of devices to my FreeBSD systems that have required me
> to patch under the hood, that when attached to a recent NetBSD, have
> Just Worked.
> 
> As the FreeBSD USB code is largely taken from NetBSD, but has over
> time lagged somewhat behind, doing something like this can help you
> determine if it should be relatively easy to fix FreeBSD.  Also, I've
> noticed that I experience problems that are very dependent on the
> particular combination of hardware (like controllers) I use, so the
> more juggling you can do, the better.
> 
> Also, a handy thing you can do, if you don't already, is to build
> your USB support as kernel modules, and then try out modules built
> from more recent source if there have been recent commits, or try
> building modules with code adapted from -current or even NetBSD to
> see if that can solve the problem.  My present kernel was built on
> 08.Jun and I have no problems with more recent usb.ko and umass.ko
> modules.  You can build individual modules in your source tree by
> `cd /path-to-src/src/sys/modules/usb && make -m /path-to-src/src/share/mk'
> replacing modules/usb with modules/umass or whatever you want to build
> (which writes in your source tree; I use unionfs to write these into
> a source-hacks tree atop my virginal source tree) -- a timesaver on
> my slow system that may help you if you feel like experimenting.
> 
> Just a few hints, that I hope could be helpful, if not for you, then
> hopefully for someone reading this sometime...

I know David Maxwell (NetBSD security guy).  The Ottawa BSD group is 
meeting this Thursday.  I'll ask him to bring along his laptop.... ;)
-- 
Dan Langille : http://www.langille.org/
BSDCan - The Technical BSD Conference - http://www.bsdcan.org/