linux-kernel - USB 3.0 failure and possible regression in kernel 3.8.0

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Date:	Wed, 12 Jun 2013 10:25:32 +0900 (JST)
From:	Norman Diamond <n0diamond@...oo.co.jp>
To:	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: USB 3.0 failure and possible regression in kernel 3.8.0

Kernels somewhere around 2.6.35 could handle USB 3.0 at random sometimes,
but kernel 3.8.0 fails consistently.  I know I should try to bisect this,
but I don't have time and the randomness of the older kernel doesn't help.

lspci:
0d:00.0 USB controller [0c03]: NEC Corporation uPD720200 USB 3.0 Host Controller
 [1033:0194] (rev 04)
         Kernel driver in use: xhci_hcd

lsusb:
Bus 007 Device 002: ID 152d:0539 JMicron Technology Corp. / JMicron USA Technology Corp.

dmesg:
[  458.857081] usb 6-1: new high-speed USB device number 2 using xhci_hcd
[  463.857085] xhci_hcd 0000:0d:00.0: Timeout while waiting for address device command
[  464.728073] xhci_hcd 0000:0d:00.0: Stopped the command ring failed, maybe the host is dead
[  464.728073] xhci_hcd 0000:0d:00.0: Host not halted after 16000 microseconds.
[  464.728073] xhci_hcd 0000:0d:00.0: Abort command ring failed
[  479.976010] [sched_delayed] sched: RT throttling activated
[  479.987230] xhci_hcd 0000:0d:00.0: HC died; cleaning up
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