On Tue, 13 May 2008, Michael Lorenz wrote:
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Hello,
On May 13, 2008, at 21:02, Brian Buhrow wrote:
Hello. It certainly is true that on my 4.0-stable systems, and
on my
3.x based systems, files written to umass devices over the ehci
(4) driver
produces garbage. Ohci and uhci connected devices work fine.
(This is on I386 based systems.) My point here is that I think
the ehci(4)
driver is broken everywhere, including on I386 systems.
Who made your ohci/ehci chip? I had one made by ALi which never
worked reliably while others, made by NEC, work just fine.
FWIW, I can at least confirm that..
ehci0 at pci0 dev 11 function 1: NVIDIA nForce4 USB2 Host
Controller (rev. 0xa4)
on NetBSD 4.0 (GENERIC.MP) is utterly, utterly broken. The
motherboard in that box is an ASUS A8N32-SLI Deluxe. Connecting any
kind of umass device invariably leads to complete system deadlock
-- sometimes on the first attempt at IO, sometimes after seeming to
work for a few seconds. I've seen everything from the system slowly
dying as unrelated processes get stuck in a deadlocked io subsystem
one after the other -- to immediate, complete hangs (i.e. including
the ps/2 keyboard). The wireless mouse and graphire tablet sitting
on ohci work flawless.