A problem may relate to USB 3.0 (xhci)

[Zhihao Yuan]

Hi,

I found a problem *may* relate to the xhci driver. My laptop, HP
Elitebook 8540w, has two USB 3.0 interfaces. After the laptop has been
used for several days, the USB 3.0 interfaces does not work anymore; I
can only use them to charge mobile devices. A restart will reset
everything. Since the problem is reproducible, I found the following
in my /var/log/messages:

Sep 12 21:34:46 compaq kernel: ugen1.2: <SAMSUNG> at usbus1 (disconnected)
Sep 12 21:34:46 compaq kernel: umass1: at uhub1, port 3, addr 1 (disconnected)
Sep 12 21:34:46 compaq kernel: (da1:umass-sim1:1:0:0): lost device
Sep 12 21:34:46 compaq kernel: (da1:umass-sim1:1:0:0): removing device entry
Sep 12 21:34:54 compaq kernel: ugen1.2: <Unknown> at usbus1 (disconnected)

And after that, ugen1.2 can no longer be recognized.

~> usbconfig
ugen0.1: <EHCI root HUB Intel> at usbus0, cfg=0 md=HOST spd=HIGH
(480Mbps) pwr=SAVE
ugen1.1: <XHCI root HUB 0x1033> at usbus1, cfg=0 md=HOST spd=SUPER
(5.0Gbps) pwr=SAVE
ugen2.1: <EHCI root HUB Intel> at usbus2, cfg=0 md=HOST spd=HIGH
(480Mbps) pwr=SAVE
ugen0.2: <product 0x0020 vendor 0x8087> at usbus0, cfg=0 md=HOST
spd=HIGH (480Mbps) pwr=SAVE
ugen2.2: <product 0x0020 vendor 0x8087> at usbus2, cfg=0 md=HOST
spd=HIGH (480Mbps) pwr=SAVE
ugen0.3: <HP Integrated Module Broadcom Corp> at usbus0, cfg=0 md=HOST
spd=FULL (12Mbps) pwr=ON
ugen0.4: <product 0x0007 vendor 0x138a> at usbus0, cfg=0 md=HOST
spd=FULL (12Mbps) pwr=ON
ugen2.3: <product 0xce12 FV-U35> at usbus2, cfg=0 md=HOST spd=HIGH
(480Mbps) pwr=ON
ugen2.4: <Mass Storage Device Prolific Technology Inc.> at usbus2,
cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON

It just disappeared.

ugen1.1 should be another USB 3.0 interface, but after one of them is
down, none of them works, and message

ugen1.2: <Unknown> at usbus1 (disconnected)

just keep shown when I plug/unplug USB devices.

My FreeBSD is

FreeBSD compaq.yuetime 8.2-STABLE FreeBSD 8.2-STABLE #8 r225370: Sun
Sep  4 05:14:37 CDT 2011
lichray at compaq.yuetime:/usr/obj/home/lichray/devel/freebsd-stable/sys/HOUKAGO
 amd64

____________

This may be a hardware problem btw, since I only used FreeBSD on this
laptop, so I can't say whether other USB stacks work correctly. And in
the most cases I plug in my Samsung Exhibit 4G. As you known, after an
Android device has been plugged in, you need to select "Connect to
USB" manually, which generates:

Sep  7 15:04:12 compaq kernel: ugen1.2: <SAMSUNG> at usbus1
Sep  7 15:04:12 compaq kernel: umass1: <Mass Storage> on usbus1
Sep  7 15:04:14 compaq kernel: (probe0:umass-sim1:1:0:0): TEST UNIT READY. CDB:
0 0 0 0 0 0
Sep  7 15:04:14 compaq kernel: (probe0:umass-sim1:1:0:0): CAM status:
SCSI Status Error
Sep  7 15:04:14 compaq kernel: (probe0:umass-sim1:1:0:0): SCSI status:
Check Condition
Sep  7 15:04:14 compaq kernel: (probe0:umass-sim1:1:0:0): SCSI sense:
UNIT ATTENTION asc:29,0 (Power on, reset, or bus device reset
occurred)
Sep  7 15:04:14 compaq kernel: (probe0:umass-sim1:1:0:0): TEST UNIT
READY. CDB: 0 0 0 0 0 0
Sep  7 15:04:14 compaq kernel: (probe0:umass-sim1:1:0:0): CAM status:
SCSI Status Error
Sep  7 15:04:14 compaq kernel: (probe0:umass-sim1:1:0:0): SCSI status:
Check Condition
Sep  7 15:04:14 compaq kernel: (probe0:umass-sim1:1:0:0): SCSI sense:
NOT READY asc:3a,0 (Medium not present)
Sep  7 15:04:14 compaq kernel: da1 at umass-sim1 bus 1 scbus6 target 0 lun 0
Sep  7 15:04:14 compaq kernel: da1: <Android SGH-T759 0001> Removable
Direct Access SCSI-2 device
Sep  7 15:04:14 compaq kernel: da1: 40.000MB/s transfers
Sep  7 15:04:14 compaq kernel: da1: Attempt to query device size
failed: NOT READY, Medium not present

for each time. (Btw, I hope gpart/devfs can detect the medium
availability change on USB :) This makes the device not that
"regular". So the problem may also caused by the device.

-- 
Zhihao Yuan, nickname lichray
The best way to predict the future is to invent it.
___________________________________________________
4BSD -- http://4bsd.biz/