Bug 142229 - [ums] [usb8] [hang] connecting a USB mouse to a Dell PE750 locks up kernel
Summary: [ums] [usb8] [hang] connecting a USB mouse to a Dell PE750 locks up kernel
Status: Open
Alias: None
Product: Base System
Classification: Unclassified
Component: usb (show other bugs)
Version: 8.0-RELEASE
Hardware: Any Any
: Normal Affects Only Me
Assignee: freebsd-usb (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-01-02 06:00 UTC by Paul Bransford
Modified: 2018-01-03 05:16 UTC (History)
0 users

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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 freebsd_triage 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 freebsd_triage 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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