Hello Baolu,
I'm doing most of my testing on a 2014 Retina Macbook Pro. lsusb
output below. I've also seen the issue on an Intel NUC D34010WYKH,
which I don't have in front of me or I would provide the lsusb output
for that as well.
Apologies to Mathias for not getting back to this sooner. I've been
buried in another project but plan to get back to it this week.
Thanks for investigating this issue.
Cheers,
Devin
Bus 002 Device 002: ID 05ac:8406 Apple, Inc.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 3.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 9
idVendor 0x05ac Apple, Inc.
idProduct 0x8406
bcdDevice 8.20
iManufacturer 3 Apple
iProduct 4 Card Reader
iSerial 5 000000000820
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 44
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 224mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk-Only
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 0
bMaxBurst 4
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 0
bMaxBurst 4
Binary Object Store Descriptor:
bLength 5
bDescriptorType 15
wTotalLength 22
bNumDeviceCaps 2
USB 2.0 Extension Device Capability:
bLength 7
bDescriptorType 16
bDevCapabilityType 2
bmAttributes 0x00000002
Link Power Management (LPM) Supported
SuperSpeed USB Device Capability:
bLength 10
bDescriptorType 16
bDevCapabilityType 3
bmAttributes 0x02
Latency Tolerance Messages (LTM) Supported
wSpeedsSupported 0x000e
Device can operate at Full Speed (12Mbps)
Device can operate at High Speed (480Mbps)
Device can operate at SuperSpeed (5Gbps)
bFunctionalitySupport 1
Lowest fully-functional device speed is Full Speed (12Mbps)
bU1DevExitLat 10 micro seconds
bU2DevExitLat 2047 micro seconds
Device Status: 0x0010
(Bus Powered)
Latency Tolerance Messaging (LTM) Enabled
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 3.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 3
bMaxPacketSize0 9
idVendor 0x1d6b Linux Foundation
idProduct 0x0003 3.0 root hub
bcdDevice 3.19
iManufacturer 3 Linux 3.19.0-rc5djh+ xhci-hcd
iProduct 2 xHCI Host Controller
iSerial 1 0000:00:14.0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 31
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 12
bMaxBurst 0
Hub Descriptor:
bLength 12
bDescriptorType 42
nNbrPorts 4
wHubCharacteristic 0x000a
No power switching (usb 1.0)
Per-port overcurrent protection
bPwrOn2PwrGood 10 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
bHubDecLat 0.0 micro seconds
wHubDelay 0 nano seconds
DeviceRemovable 0x00
Hub Port Status:
Port 1: 0000.02a0 5Gbps power Rx.Detect
Port 2: 0000.02a0 5Gbps power Rx.Detect
Port 3: 0000.0203 5Gbps power U0 enable connect
Port 4: 0000.02a0 5Gbps power Rx.Detect
Binary Object Store Descriptor:
bLength 5
bDescriptorType 15
wTotalLength 15
bNumDeviceCaps 1
SuperSpeed USB Device Capability:
bLength 10
bDescriptorType 16
bDevCapabilityType 3
bmAttributes 0x02
Latency Tolerance Messages (LTM) Supported
wSpeedsSupported 0x0008
Device can operate at SuperSpeed (5Gbps)
bFunctionalitySupport 3
Lowest fully-functional device speed is SuperSpeed (5Gbps)
bU1DevExitLat 10 micro seconds
bU2DevExitLat 512 micro seconds
Device Status: 0x0001
Self Powered
Bus 001 Device 004: ID 05ac:0259 Apple, Inc.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x05ac Apple, Inc.
idProduct 0x0259
bcdDevice 2.24
iManufacturer 1 Apple Inc.
iProduct 2 Apple Internal Keyboard / Trackpad
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 84
bNumInterfaces 3
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 40mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 1 Keyboard
iInterface 3 Apple Internal Keyboard
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 33 US
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 156
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x000a 1x 10 bytes
bInterval 8
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 0 None
iInterface 4 Touchpad
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 27
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 2
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 2 Mouse
iInterface 4 Touchpad
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 52
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 8
Device Status: 0x0000
(Bus Powered)
Bus 001 Device 007: ID 05ac:8289 Apple, Inc.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 1
bDeviceProtocol 1
bMaxPacketSize0 64
idVendor 0x05ac Apple, Inc.
idProduct 0x8289
bcdDevice 0.99
iManufacturer 1 Apple Inc.
iProduct 2 Bluetooth USB Host Controller
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 216
bNumInterfaces 4
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 1
bInterfaceProtocol 1
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0000 1x 0 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0000 1x 0 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0009 1x 9 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0009 1x 9 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0011 1x 17 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0011 1x 17 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0019 1x 25 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0019 1x 25 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 4
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0021 1x 33 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0021 1x 33 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 5
bNumEndpoints 2
bInterfaceClass 224 Wireless
bInterfaceSubClass 1 Radio Frequency
bInterfaceProtocol 1 Bluetooth
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0031 1x 49 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0031 1x 49 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0020 1x 32 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x04 EP 4 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0020 1x 32 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 254 Application Specific Interface
bInterfaceSubClass 1 Device Firmware Update
bInterfaceProtocol 1
iInterface 0
Device Firmware Upgrade Interface Descriptor:
bLength 7
bDescriptorType 33
bmAttributes 7
Will Not Detach
Manifestation Tolerant
Upload Supported
Download Supported
wDetachTimeout 5000 milliseconds
wTransferSize 64 bytes
Device Status: 0x0001
Self Powered
Bus 001 Device 003: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub
(part of BCM2046 Bluetooth)
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 8
idVendor 0x0a5c Broadcom Corp.
idProduct 0x4500 BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth)
bcdDevice 1.00
iManufacturer 1 Apple Inc.
iProduct 2 BRCM20702 Hub
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 94mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0001 1x 1 bytes
bInterval 255
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 3
wHubCharacteristic 0x0004
Ganged power switching
Compound device
Ganged overcurrent protection
bPwrOn2PwrGood 50 * 2 milli seconds
bHubContrCurrent 100 milli Ampere
DeviceRemovable 0x0e
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0100 power
Port 2: 0000.0100 power
Port 3: 0000.0103 power enable connect
Device Status: 0x0001
Self Powered
Bus 001 Device 002: ID 05ac:1402 Apple, Inc. Ethernet Adapter [A1277]
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 255 Vendor Specific Subclass
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x05ac Apple, Inc.
idProduct 0x1402 Ethernet Adapter [A1277]
bcdDevice 0.01
iManufacturer 1 Apple Inc.
iProduct 2 Apple USB Ethernet Adapter
iSerial 3 18E4ED
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 39
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 4 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 250mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 0
iInterface 7 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 11
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 255 Vendor Specific Subclass
bDeviceProtocol 0
bMaxPacketSize0 8
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 1 Single TT
bMaxPacketSize0 64
idVendor 0x1d6b Linux Foundation
idProduct 0x0002 2.0 root hub
bcdDevice 3.19
iManufacturer 3 Linux 3.19.0-rc5djh+ xhci-hcd
iProduct 2 xHCI Host Controller
iSerial 1 0000:00:14.0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 12
Hub Descriptor:
bLength 11
bDescriptorType 41
nNbrPorts 9
wHubCharacteristic 0x000a
No power switching (usb 1.0)
Per-port overcurrent protection
TT think time 8 FS bits
bPwrOn2PwrGood 10 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00 0x00
PortPwrCtrlMask 0xff 0xff
Hub Port Status:
Port 1: 0000.0503 highspeed power enable connect
Port 2: 0000.0100 power
Port 3: 0000.0103 power enable connect
Port 4: 0000.0100 power
Port 5: 0000.0103 power enable connect
Port 6: 0000.0100 power
Port 7: 0000.0100 power
Port 8: 0000.0100 power
Port 9: 0000.0100 power
Device Status: 0x0001
Self Powered
Devin
On Tue, Mar 10, 2015 at 5:55 AM, Lu, Baolu <baolu.lu@xxxxxxxxxxxxxxx> wrote:
> Hi Devin,
>
> Do you mind to post output of "lspci -xv" on the machine where you saw this
> problem?
>
> We are facing the same problems in other cases. I could provide a patch for
> it later.
>
> Thanks,
> Baolu
>
>
> On 01/19/2015 04:55 AM, Devin Heitmueller wrote:
>>
>> Hello,
>>
>> I'm debugging some issues on a couple of different USB TV tuners which
>> boil down to the following error:
>>
>> xhci_hcd 0000:00:14.0: xHCI host not responding to stop endpoint command.
>>
>> This is followed by the XHCI driver disconnecting *all* USB devices
>> from the controller.
>>
>> I've done a bit of debugging, and the root of the issue appears to be
>> an intermittent control message timing out, and then the call to
>> usb_kill_urb() that occurs inside of usb_control_msg() when the
>> timeout expires is what causes the disconnect. Specifically, it would
>> appear that xhci_urb_dequeue tries to stop the endpoint using
>> xhci_queue_stop_endpoint(), the command gets queued but the IRQ never
>> fires to perform the TRB_STOP_RING completion code. The function
>> xhci_stop_endpoint_command_watchdog() fires after five seconds, which
>> tears down the entire driver.
>>
>> Below is the dmesg output with the xhci_hcd debugging enabled. The
>> dump_stack() call is something I added (i.e. it's not an OOPS) so I
>> could see which code path was making the usb_kill_urb() call that was
>> failing. Note that the caller is using usb_control_msg() with 1000ms
>> timeout, and we can see from the timestamps that the timer expires
>> which is what causes the call to usb_kill_urb().
>>
>> I would imagine that explicitly killing URBs is a pretty uncommon task
>> for control endpoint messages (compared to ISOC or BULK endpoints
>> where it's done regularly). Is it possible a exception case has been
>> missed?
>>
>> Independent of the usb_kill_urb() killing the entire stack, I still
>> don't really understand yet why the control message failed in the
>> first place. This is a well-exercised code path in the au0828 driver
>> (related to I2C transfers) and I've never seen this when using the
>> EHCI driver. My assumption is that either the HCD is getting sick
>> which is causing both the control message to fail as well as putting
>> it into an inconsistent state such that we never get the TRB_STOP_RING
>> IRQ, or we've got two separate bugs - the control message failing for
>> some "legitimate" reason (i.e. I screwed something up in my au0828
>> driver), followed by the usb_kill_urb() error simply not handling
>> killing of URBs on a control endpoint (which causes the entire stack
>> to go down).
>>
>> Thoughts/suggestions/recommendations are welcome.
>>
>> Thanks in advance,
>>
>> Devin
>>
>> Jan 18 14:04:05 devin-MacBookPro kernel: [ 9119.647249] au0828:
>> au0828_writereg(0x0100, 0x00)
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.645091] xhci_hcd
>> 0000:00:14.0: Cancel URB ffff8802543c36c0, dev 1, ep 0x0, starting at
>> offset 0x25c358940
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.645365] djh dequeue
>> pending=0 ep_index=0
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.645632] CPU: 1 PID:
>> 2782 Comm: tvtime Tainted: P OE 3.18.0-rc4djh+ #33
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.645921] Hardware name:
>> Apple Inc. MacBookPro11,1/Mac-189A3D4F975D5FFC, BIOS
>> MBP111.88Z.0138.B11.1408291433 08/29/2014
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.646236]
>> ffff88025b9b0000 ffff88023ea2f9d8 ffffffff817445c1 0000000000000000
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.646570]
>> ffff8802543c36c0 ffff88023ea2fa58 ffffffffa0080b2e 000000025c358940
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.646909]
>> ffff88023ea2fa48 000000003ea2fa18 ffff88023e8a22a0 0000000000000000
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.647256] Call Trace:
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.647605]
>> [<ffffffff817445c1>] dump_stack+0x46/0x58
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.647981]
>> [<ffffffffa0080b2e>] xhci_urb_dequeue+0x28e/0x420 [xhci_hcd]
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.648357]
>> [<ffffffff8157f1fd>] unlink1+0x2d/0x130
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.648743]
>> [<ffffffff810cbd80>] ? internal_add_timer+0xb0/0xb0
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.649133]
>> [<ffffffff814aaa67>] ? get_device+0x17/0x30
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.649526]
>> [<ffffffff8158129d>] usb_hcd_unlink_urb+0x5d/0xf0
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.649928]
>> [<ffffffff8158281a>] usb_kill_urb+0x3a/0xa0
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.650334]
>> [<ffffffff81093890>] ? wake_up_state+0x20/0x20
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.650746]
>> [<ffffffff81583068>] usb_start_wait_urb+0xc8/0x150
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.651166]
>> [<ffffffff811b4065>] ? __kmalloc+0x55/0x190
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.651586]
>> [<ffffffff815831b5>] usb_control_msg+0xc5/0x110
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.652011]
>> [<ffffffffa05362a9>] au0828_writereg+0x79/0xf0 [au0828]
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.652447]
>> [<ffffffff810ccfaf>] ? try_to_del_timer_sync+0x4f/0x70
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.652894]
>> [<ffffffffa053b929>] au0828_analog_stream_disable+0x29/0x50 [au0828]
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.653354]
>> [<ffffffffa053ba29>] vidioc_streamoff+0xd9/0x1c0 [au0828]
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.653823]
>> [<ffffffffa0b5a98a>] v4l_streamoff+0x1a/0x20 [videodev]
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.654298]
>> [<ffffffffa0b5d484>] __video_do_ioctl+0x274/0x2f0 [videodev]
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.654786]
>> [<ffffffff811c4dcf>] ? commit_charge+0x1f/0x80
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.655278]
>> [<ffffffffa0b5fdbe>] video_usercopy+0x21e/0x580 [videodev]
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.655784]
>> [<ffffffffa0b5d210>] ? v4l_dqevent+0x20/0x20 [videodev]
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.656295]
>> [<ffffffff8105623c>] ? __do_page_fault+0x20c/0x550
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.656815]
>> [<ffffffffa0b60135>] video_ioctl2+0x15/0x20 [videodev]
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.657359]
>> [<ffffffffa0b596bf>] v4l2_ioctl+0x10f/0x150 [videodev]
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.657895]
>> [<ffffffff8111c2dc>] ? acct_account_cputime+0x1c/0x20
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.658440]
>> [<ffffffff811e3040>] do_vfs_ioctl+0x2e0/0x4c0
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.658993]
>> [<ffffffff81097374>] ? vtime_account_user+0x54/0x60
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.659551]
>> [<ffffffff81022097>] ? syscall_trace_enter_phase2+0xa7/0x1d0
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.660116]
>> [<ffffffff811e32a1>] SyS_ioctl+0x81/0xa0
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.660690]
>> [<ffffffff8174cc24>] tracesys_phase2+0xd8/0xdd
>> Jan 18 14:04:06 devin-MacBookPro kernel: [ 9120.664207] xhci_hcd
>> 0000:00:14.0: // Ding dong!
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.671045] xhci_hcd
>> 0000:00:14.0: xHCI host not responding to stop endpoint command.
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.671679] xhci_hcd
>> 0000:00:14.0: Assuming host is dying, halting host.
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.672317] xhci_hcd
>> 0000:00:14.0: // Halt the HC
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.672950] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 1, ep index 0
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.673602] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 1, ep index 2
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.674246] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 1, ep index 3
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.674900] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 2, ep index 0
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.676020] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 2, ep index 2
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.677146] xhci_hcd
>> 0000:00:14.0: get port status, actual port 2 status = 0x1203
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.678271] xhci_hcd
>> 0000:00:14.0: Get port status returned 0x203
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.679400] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 3, ep index 0
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.680567] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 3, ep index 2
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.681736] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 3, ep index 6
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.682908] xhci_hcd
>> 0000:00:14.0: set port reset, actual port 2 status = 0x1311
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.684078] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 3, ep index 8
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.684776] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 6, ep index 0
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.685464] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 6, ep index 2
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.686158] Bluetooth:
>> hci0 urb ffff88025b997b40 failed to resubmit (22)
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.686863] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 6, ep index 3
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.687576] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 6, ep index 4
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.688298] Bluetooth:
>> hci0 urb ffff88025b997240 failed to resubmit (22)
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.689024] Bluetooth:
>> hci0 urb ffff88025b9973c0 failed to resubmit (22)
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.689752] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 6, ep index 5
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.690491] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 6, ep index 6
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.691239] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 6, ep index 7
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.691983] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 6, ep index 8
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.692725] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 7, ep index 0
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.693470] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 7, ep index 2
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.694214] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 7, ep index 4
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.694981] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 7, ep index 6
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.695728] xhci_hcd
>> 0000:00:14.0: Killing URBs for slot ID 7, ep index 8
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.696477] xhci_hcd
>> 0000:00:14.0: Calling usb_hc_died()
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.697229] xhci_hcd
>> 0000:00:14.0: HC died; cleaning up
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.697985] xhci_hcd
>> 0000:00:14.0: xHCI host controller is dead.
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.698750] xhci_hcd
>> 0000:00:14.0: Command timeout on stopped ring
>> Jan 18 14:04:11 devin-MacBookPro kernel: [ 9125.699521] xhci_hcd
>> 0000:00:14.0: Turn aborted command ffff88025c227350 to no-op
>>
>>
>
--
Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com
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