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Date: Fri, 26 Sep 2003 11:34:27 -0700
From: Brandon Fosdick <bfoz@terrandev.com>
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To: Joe Kelsey <joek@mail.flyingcroc.net>
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cc: stable@freebsd.org
Subject: Re: 4.9 Boot Hang when USB Devices Attached
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Joe Kelsey wrote:
> I have a system running
> 
> FreeBSD zircon.zircon.seattle.wa.us 4.9-PRERELEASE FreeBSD 
> 4.9-PRERELEASE #20: Fri Sep 19 12:55:28 PDT 2003 
> joe@zircon.zircon.seattle.wa.us:/usr/obj/usr/src/sys/ZIRCON  i386
> 
> When I upgraded to fix the OpenSSH problems, the system started hanging 
> at boot time right after the USB/OHCI messages whenever I had devices 
> plugged into the USB ports (mainly a USB mouse).  Now, in order to boot, 
> I have to unplug the mouse and wait for the system to pass the USB part 
> of boot before replugging.

There are several threads discussing this ATM. If you have an nforce2 
board search for the thread with the subject "fix/workaround for usb 
probe lockups on nForce2 mbs". Andrew Atrens posted a patch that worked 
for me. In the same thread Ian Dowse has offered a few other ideas to 
try. I haven't tried them yet.