[DragonFlyBSD - Bug #2244] usb - system hangs during boot when USB mass storage device/stick is connected - 2.13.0.357.gcdb8af

[Alan K via Redmine <bugtracker-admin@xxxxxxxxxxxxxxxxxxxxx>]

Issue #2244 has been reported by Alan K.

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Bug #2244: usb - system hangs during boot when USB mass storage device/stick is connected - 2.13.0.357.gcdb8af
http://bugs.dragonflybsd.org/issues/2244

Author: Alan K
Status: New
Priority: Normal
Assignee: 
Category: 
Target version: 


Versions:

Workstation: Lenovo Thinkcentre M58p 
DragonFlyBSD: v2.13.0.357.gcdb8af-DEVELOPMENT X86_64_GENERIC x86_64

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Problem Description:

My system hangs during boot if a USB mass storage device/stick is connected.
By hang I mean no more output is shown and I cannot turn off/on num lock key on keyboard.
A hard reset is needed at this stage.

This prevents me from installing DragonFlyBSD from a USB stick.

I first noticed the problem when trying to boot via USB using the 2011 Nov 17th "DragonFly-x86_64-LATEST-IMG.img".
I haven't tried older versions.

I can connect and use the USB mass storage device/stick after boot without problem, and shutdown while attached without problem.

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I recompiled kernel with "options USB_DEBUG" and booted with verbose logging option.
The last lines shown are:

uhci1: <UHCI (generic) USB controller> [tentative] port 0x1860-0x187f irq 17 at device 26.1 on pci0
uhci1: Reserved 0x20 bytes for rid 0x20 type 4 at 0x1860
uhci1: LegSup = 0x0010

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