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From: David <turbolad995@yahoo.co.uk>
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Subject: usb/174575: Interrupt storm error on startup
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>Number:         174575
>Category:       usb
>Synopsis:       Interrupt storm error on startup
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-usb
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Dec 19 14:30:00 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator:     David
>Release:        9.1
>Organization:
Home
>Environment:
FreeBSD pcbsd-5925 9.1-RELEASE FreeBSD 9.1-RELEASE #2: Tue Nov 27 03:45:16 UTC 2012     root@darkstar:/usr/obj/pcbsd-build90/fbsd-source/9.1/sys/GENERIC  amd64
>Description:
On startup, sometimes it gets stuck, with lines of text saying "interrupt storm error". (The actual wording is: "interrupt storm detected on "irq17:"; throttling interrupt source".)

It appears to be caused by the USB mouse.  I know that the USB mouse works properly and there are no hardware faults of any kind.
>How-To-Repeat:
Use a USB mouse and sometimes (not always) the bootup will freeze and only output lines of the error message.
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: