>Number:         173722
>Category:       usb
>Synopsis:       XHCI driver bug after suspend to ram (ACPI S3 mode)
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-usb
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Nov 19 15:40:00 UTC 2012
>Originator:     Florian Jung
>Release:        9.0-RELEASE-p3
FreeBSD beastie 9.0-RELEASE-p3 FreeBSD 9.0-RELEASE-p3 #0: Tue Jun 12 02:52:29 
UTC 2012    r...@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  
After entering and waking up from suspend to ram aka ACPI S3 state, the dmesg 
get flooded with "xhci_interrupt: host controller halted", and my USB3.0 device 
stops working.

(It is a external hard disk drive, and the device node just vanished and won't 

My USB2.0 and 1.x devices however do still work.

It seems that i can provoke the generation of these "xhci_interrupt: host 
controller halted" messages by typing on my USB-2.0-Keyboard or by moving my 
- Start up FreeBSD
- Plug in USB3.0 Harddisk
- It will work.
- sudo acpiconf -S 3
- re-awake the computer
- ls /dev/ tells you that the harddisk is gone
- dmesg tells you the "xhci_interrupt: host controller halted" messages.
- replug the harddisk
- it still does not work.

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