Bug 142229

Summary:	[ums] [usb8] [hang] connecting a USB mouse to a Dell PE750 locks up kernel
Product:	Base System	Reporter:	Paul Bransford <draeath>
Component:	usb	Assignee:	freebsd-usb (Nobody) <usb>
Status:	Open ---
Severity:	Affects Only Me
Priority:	Normal
Version:	8.0-RELEASE
Hardware:	Any
OS:	Any

Description Paul Bransford 2010-01-02 06:00:10 UTC

When trying to boot a Dell PowerEdge 750 with a Kensington Expert Mouse connected (usb trackball) the kernel freezes with the the last line printed:
ugen1.2: <Kensington> at usbus1
ums0: <Kensington Kensington Expert Mouse, class 0/0, rev 1.10/1.00, addr 2> on usbus1
ums0: 4 buttons and [XYZ] coordinates ID=0
<some filesystem related stuff, cleanup from last lockup. setting hostname etc>
Starting ums0 moused.

The kernel doesn't "unstick" when the device is unplugged, it must be power-cycled.

If the device is absent it will boot normally. However, upon connection, three lines will print and it will lock up as before:
ugen1.2: <Kensington> at usbus1
ums0: <Kensington Kensington Expert Mouse, class 0/0, rev 1.10/1.00, addr 2> on usbus1
ums0: 4 buttons and [XYZ] coordinates ID=0

This is the "stock" kernel that was installed by sysinstall. I do not have another USB mouse to test with. The USB keyboard connected appears to function without issue.

I've not written a FreeBSD problem report. Please advise if any more detail is required.

How-To-Repeat: Connect the Kensington Expert Mouse. No other action is required.

Comment 1 Mark Linimon freebsd_committer

2010-01-02 17:25:40 UTC

Responsible Changed
From-To: freebsd-bugs->freebsd-usb

Over to maintainer(s).

Comment 2 Eitan Adler freebsd_committer

2017-12-31 07:59:24 UTC

For bugs matching the following criteria:

Status: In Progress Changed: (is less than) 2014-06-01

Reset to default assignee and clear in-progress tags.

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