Date: Sun, 7 Sep 2003 10:55:24 -0700 From: John-Mark Gurney <gurney_j@efn.org> To: Barney Wolff <barney@databus.com> Cc: freebsd-current@freebsd.org Subject: Re: usb flashkey disk copy error Message-ID: <20030907175524.GG39788@funkthat.com> In-Reply-To: <20030907174649.GA4378@pit.databus.com> References: <20030907064510.GA702@libertysurf.fr> <20030907073246.GD39788@funkthat.com> <20030907174649.GA4378@pit.databus.com>
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Barney Wolff wrote this message on Sun, Sep 07, 2003 at 13:46 -0400:
> On Sun, Sep 07, 2003 at 12:32:46AM -0700, John-Mark Gurney wrote:
> >
> > You're the second person that has reported corruption with USB umass
> > devices. I am interested in tracking down this problem, but it's a
> > bit difficult since I haven't seen it myself.
>
> Make me the third. I have a Sony F707 camera, which I can use on
> 4-stable and with 5-current on a Dell I5000 laptop, but not on 5-current
> on an Asus A7M266-D with world/kernel built 9/4/03. The bad data starts
> at byte 4096, always. The problem has existed for at least a month,
Ahh, this is useful information. What are the controller types
of the two machines? ohci? uhci? I think it might be ohci, and
it maybe a page miscalculation when dispatching the request.
Have you looked at the corrupted data? does it apear to be from
some other location, like the kernel?
> perhaps longer; I can't remember if it ever worked on the Asus. But
> the same system runs fine with usb keyboard and mouse - which proves
> nothing as the data rate and amount are so small. So I can't rule
> out hardware as the problem. In a few days I can try booting from
> a 4.8 live cd and see if the hardware works ok. Old-quirks had no
> effect on the problem.
It's been about two months since I updated USB to use bus_dma. So
you could try checking out the usb code from July 4th or so and see
if it goes away (it probably will).
--
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
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