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kern/49106: panic: ehci_open: bad device speed 4

>Number:         49106
>Category:       kern
>Synopsis:       panic: ehci_open: bad device speed 4
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Aug 12 23:30:00 +0000 2014
>Originator:     David Shao
>Release:        NetBSD 7.99.1 (GENERIC) amd64
NetBSD 7.99.1 NetBSD 7.99.1 (GENERIC) #1: Mon Aug 11 15:05:44 PDT 2014 
xxxxx@:/usr/obj/sys/arch/amd64/compile/GENERIC amd64
On multiple amd64 machines with USB keyboards and USB mice using both Intel and 
AMD processors, latest current NetBSD 7.99.1 CVS source through:

Module Name:    src
Date:           Tue Aug 12 14:22:51 UTC 2014

Modified Files:
        src/sys/dev/usb: usb.h

Log Message:
Add a UPS_SUPER_SPEED.  From Takahiro HAYASHI.

fails to boot with messages similar to:

ehci0: handing power over low speed device on port 1 to ohci0
wd3: 465 GB, 969021 cyl, 16 head, 63 sec, 512 bytes/sect x 976773168 sectors
fatal breakpoint trap in supervisor mode
trap type 1 code 0 rip ffffffff80265acd cs 8 rflags 246 cr2 0 ilevel 0 rsp 
curlwp 0xfffffe811d707a40 pid 0.64 lowest kstack 0xfffffe811d7f62c0
Stopped in pid 0.64 (system) at netbsd:breakpoint+0x5:  leave


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