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From: Ákos Maróy on 25 Feb 2010 16:10
Alan Stern wrote:
> It is the driver for USB-3.0 controllers. It's relatively new and not
> as mature as the USB-2.0 drivers.
>
> I'm a little surprised that it is running on your system. Why would
> you have USB-3.0 hardware?

I might - this is a brand new HP Envy 15 laptop, which seems to be 'too
new' for Linux in a number of ways (e.g. video card, with the latest
10.2 official AMD binary driver 'sort of' working, hardware raid
controller for SSD, which only the mainline grub can handle, WiFi card
that is only supported in 2.6.32.x, etc.)

actually, it has 3 USB ports - two of them seem to have these issues.
the third USB port, which is phyisically both a USB and en eSATA port,
seems to work as expected.

> This is something Sarah should look into. She's the main developer
> behind xhci-hcd.

thanks for CC'ing her in..


Sarah Sharp wrote:
> USB 3.0 hosts and devices are now available commercially. I think the
> HP envy laptop has an integrated USB 3.0 host. �kos, which host
> controller do you have? Is it a PCIe add-in card, a PCI express card,
> or a port on a laptop?

see above, these are two ports on the side of the laptop.

> The xHCI driver doesn't support PCI suspend, and it also doesn't support
> suspending devices under the xHCI host. The xHCI hardware needs to do
> some extra work when a device is suspended, and I haven't added that API
> to the USB core yet. In short, power management sucks under xHCI. :-/

for suspend, I seem to get along find with unloading / reloading the
xhci kernel module, as a workaround

> Oh, freezes are not good. I wonder if the xHCI host is taking a long
> time to respond to a hardware command? Can you turn on
> CONFIG_USB_XHCI_HCD_DEBUGGING and send me the dmesg when you plug in the
> device?

ok, I'll do that..

> Did you plug in the DVD device behind a USB hub? Or is the hub a part
> of the device?

I didn't use a USB hub. I plugged in the USB DVD right into the USB port
on the laptop. the HP Envy 15 does not have a built-in optical drive,
but you can order an external USB DVD-RW drive as an option. this is
what I have.

> That looks like a rather long polling interval. Can you post the output
> of `lsusb -vvv -d 058f:6254`?

sure, here you go:

# lsusb -vvv -d 058f:6254

Bus 002 Device 002: ID 058f:6254 Alcor Micro Corp. USB Hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 1 Single TT
bMaxPacketSize0 64
idVendor 0x058f Alcor Micro Corp.
idProduct 0x6254 USB Hub
bcdDevice 1.00
iManufacturer 0
iProduct 0
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 100mA
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 12
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 3
wHubCharacteristic 0x0080
Ganged power switching
Ganged overcurrent protection
TT think time 8 FS bits
Port indicators
bPwrOn2PwrGood 50 * 2 milli seconds
bHubContrCurrent 100 milli Ampere
DeviceRemovable 0x02
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0503 highspeed power enable connect
Port 2: 0000.0100 power
Port 3: 0000.0100 power
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0001
Self Powered



though let me remind you that the same long delay happens when I plug in
other devices, like simple USB mice. also, if I plug in the same device
into the third USB port, it seems to work just fine. no 5 second freeze,
etc.

> Can you read the DVD at this point?

yes, after the first plug, it works as expected. after the unplug -
replug, it doesn't work. unless I unload the xhci module, and reload it.

> Did you unmount the DVD before you removed it? I'm not sure what the
> VFS errors are, but it looks like VFS doesn't like you removing the
> disk.

IMHO it got automatically mounted by gnome... (I saw it on my desktop as
a DVD drive)


Alan Stern wrote:
> You must have plugged it into a different port this time, yes?

I might have used the different of the two proplematic USB ports..


Sarah Sharp wrote:
> True. I can't tell exactly what's going on without
> CONFIG_USB_XHCI_HCD_DEBUGGING. It's possible the xHCI host never
> notified the driver of the disconnect, or there's a bug in the xHCI hub
> emulation code.

I'm recompiling the kernel with the above configuration setting, and
will send you an output..

thanks for spending time on this issue...


BTW, any ideas on why suspend works with unloading xhci, but hibernate
not working?


Akos

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From: Ákos Maróy on 25 Feb 2010 17:40
Sarah,

> True. I can't tell exactly what's going on without
> CONFIG_USB_XHCI_HCD_DEBUGGING. It's possible the xHCI host never
> notified the driver of the disconnect, or there's a bug in the xHCI hub
> emulation code.

after having turned this option on in the kernel, this is what I get
when plugging in the device:

Feb 25 23:32:14 tonkachi kernel: [ 100.473783] Registered led device:
iwl-phy0::radio
Feb 25 23:32:14 tonkachi kernel: [ 100.473812] Registered led device:
iwl-phy0::assoc
Feb 25 23:32:14 tonkachi kernel: [ 100.473839] Registered led device:
iwl-phy0::RX
Feb 25 23:32:14 tonkachi kernel: [ 100.473864] Registered led device:
iwl-phy0::TX
Feb 25 23:32:14 tonkachi kernel: [ 100.497848] usb 2-4: new high speed
USB device using xhci_hcd and address 0
Feb 25 23:32:14 tonkachi kernel: [ 100.520591] usb 2-4: New USB device
found, idVendor=058f, idProduct=6254
Feb 25 23:32:14 tonkachi kernel: [ 100.520595] usb 2-4: New USB device
strings: Mfr=0, Product=0, SerialNumber=0
Feb 25 23:32:14 tonkachi kernel: [ 100.520680] usb 2-4: configuration
#1 chosen from 1 choice
Feb 25 23:32:14 tonkachi kernel: [ 100.520732] usb 2-4: ep 0x81 -
rounding interval to 2048 microframes
Feb 25 23:32:14 tonkachi kernel: [ 100.522403] hub 2-4:1.0: USB hub found
Feb 25 23:32:14 tonkachi kernel: [ 100.522930] xhci_hcd 0000:02:00.0:
WARN: short transfer on control ep
Feb 25 23:32:14 tonkachi kernel: [ 100.523156] hub 2-4:1.0: 3 ports
detected
Feb 25 23:32:14 tonkachi kernel: [ 100.825758] usb 2-4.1: new high
speed USB device using xhci_hcd and address 0
Feb 25 23:32:14 tonkachi kernel: [ 100.848327] xhci_hcd 0000:02:00.0:
WARN: short transfer on control ep
Feb 25 23:32:14 tonkachi kernel: [ 100.849375] xhci_hcd 0000:02:00.0:
WARN: short transfer on control ep
Feb 25 23:32:14 tonkachi kernel: [ 100.850370] xhci_hcd 0000:02:00.0:
WARN: short transfer on control ep
Feb 25 23:32:14 tonkachi kernel: [ 100.851366] xhci_hcd 0000:02:00.0:
WARN: short transfer on control ep
Feb 25 23:32:14 tonkachi kernel: [ 100.851782] usb 2-4.1: New USB
device found, idVendor=152d, idProduct=2339
Feb 25 23:32:14 tonkachi kernel: [ 100.851785] usb 2-4.1: New USB
device strings: Mfr=1, Product=2, SerialNumber=5
Feb 25 23:32:14 tonkachi kernel: [ 100.851790] usb 2-4.1: Product: USB
to ATA/ATAPI Bridge
Feb 25 23:32:14 tonkachi kernel: [ 100.851792] usb 2-4.1: Manufacturer:
JMicron
Feb 25 23:32:14 tonkachi kernel: [ 100.851795] usb 2-4.1: SerialNumber:
6A1713351FFF
Feb 25 23:32:14 tonkachi kernel: [ 100.851873] usb 2-4.1: configuration
#1 chosen from 1 choice
Feb 25 23:32:14 tonkachi kernel: [ 100.854283] xhci_hcd 0000:02:00.0:
WARN: short transfer on control ep
Feb 25 23:32:14 tonkachi kernel: [ 100.855037] xhci_hcd 0000:02:00.0:
WARN: short transfer on control ep
Feb 25 23:32:14 tonkachi kernel: [ 100.879271] Initializing USB Mass
Storage driver...
Feb 25 23:32:14 tonkachi kernel: [ 100.879988] scsi6 : SCSI emulation
for USB Mass Storage devices
Feb 25 23:32:14 tonkachi kernel: [ 100.880141] usbcore: registered new
interface driver usb-storage
Feb 25 23:32:14 tonkachi kernel: [ 100.880147] USB Mass Storage support
registered.
Feb 25 23:32:19 tonkachi kernel: [ 105.884853] scsi 6:0:0:0: CD-ROM
hp DVDRAM GT20L DC05 PQ: 0 ANSI: 0
Feb 25 23:32:19 tonkachi kernel: <0: `MEM_WRITE_DWORD(3'b000,
32'hffffc90000hi0 00000.1fevhc anl0d0i 02-:e0x t2);
Feb 25 23:32:19 tonkachi kernel: x1.0: _ca0 00000000 01000000 02038000
Feb 25 23:32:19 tonkachi kernel: x1.0: `MEM_W_c70 000000 f__h:had
c2c]:00-:e0x t3);
Feb 25 23:32:19 tonkachi kernel: _tist us:i 00Tx] 5b78b073ndxh0.0
_c.]70h ]00t0:xhcf3) 754'hf);x.23000:02:00.0: `MEM_WRITE_DWORD(3'b000,
32'hffffc90000c7c024, 32'h8, 4'hf);
Feb 25 23:32:19 tonkachi kernel: 603n00nt 0<05.898876] xhci_hcd
0000:00h00MEM_WRITE_10 wn.8eh:0c>78 0 i_0 013Ue9:020)
Feb 25 23:32:19 tonkachi kernel: 02:00.i0h00.0: New dequeue pointer =
0x375b78d0 (DMA)
Feb 25 23:32:19 tonkachi kernel: 19
Feb 25 23:32:19 tonkachi kernel: 3d07` 300ee e_ i7c67 o5.899445] 9fc
Crned from h:0t8]__0td h096:: cs0000c63,v 005a/ed scsi 0
0dd00M_WRITE_DWORD(3'b000, 32'h50ns 01en2 ]]h00s0n/27 00670009[
903541] xhci0 00:_WRITE_DWORD(3'b000, 32'hffffc90000c7c024, 32'h8, 4'hf);
Feb 25 23:32:19 tonkachi kernel: n (D005.r0000:024 0
0dd00M_WRITE_DWORD(3'b000, 32'hffffc950ns0en2 ]]h00s0n/57 0067009[
907215] x0 0_WRITE_DWORD(3'b000, 32'hffffc90000c7c024, 32'h8, 4'hf);
Feb 25 23:32:19 tonkachi kernel: = 0i_hcd 0000:02:00.0:
`MEM_WRITE_DWORD(3'b000, 32'hffffc90000c7c808, 32'h3, 4'hf);
Feb 25 23:32:19 tonkachi kernel: n (D00090.rom0000:024 0
0dd00M_WRITE_DWORD(3'b000, 32'hffffc90000c50ns 09en2 ]]h00s0n/97
00670009[ 910899] x0 00:_WRITE_DWORD(3'b000, 32'hffffc90000c7c024,
32'h8, 4'hf);
Feb 25 23:32:19 tonkachi kernel: T5nt d:h0 c:0s0n/57 00.0I67009[
916128] x0 00:0_WRITE_DWORD(3'b000, 32'hffffc90000c7c024, 32'h8, 4'hf);
Feb 25 23:32:19 tonkachi kernel: 6 3]0D0xhci8hci_
0000:02:040]1000:02:00.0: In handle_tx_event
Feb 25 23:32:19 tonkachi kernel: [ 105.922881] xhci_hcd0hch0:
`MEM_WRI>f0OS _tx.0:c0990c_xh.0 8b0002c= 0>DMA)>[ 105.92000000ht0lo>2f
:n0e0cf0c40.09400[._> ee_1<0a1r000c700.xhci_hcd 0000:02:00.0: Endpoint
state = 0x1
Feb 25 23:32:19 tonkachi kernel: 2:0:00.0: In xhci_handle_event
Feb 25 23:32:19 tonkachi kernel: 19b lnd 6] :000 020300.0ic_ nn
=f0x10[10105.926503] xhci_hcd 0000:02:00.0: Event ring deq = 02hc::;3(:
c7c.r80h 1_d7 10xx.]0477x.:EWx 6:00>[ 5750c>000.0: @37805720 375b7a30
00`7>ff5.936369] 7dx0 0_e0 :434h1:EWx 6:007>[300700000.0: @37805730 37
<h05.936744] xhci_hcd 0000:02:00.0: xhci_handle_event - OS owns TRB
Feb 25 23:32:19 tonkachi kernel:
Feb 25 23:32:19 tonkachi kernel: 025<)nE_DW0vev8 urb= 0x1
Feb 25 23:32:19 tonkachi kernel: <750.07<h05.937960] xhci_hcd
0000:02:00.0: xhci_handle_event - OS owns TRB
Feb 25 23:32:19 tonkachi kernel:
Feb 25 23:32:19 tonkachi kernel: 025<)[nE_D0veve8 urb= 0x1
Feb 25 23:32:19 tonkachi kernel:
Feb 25 23:32:19 tonkachi kernel: 025<)[nE_D0vev8 urb= 0x1
Feb 25 23:32:19 tonkachi kernel: <750c.07<h05.945270] xhci_hcd
0000:02:00.0: xhci_handle_event - OS owns TRB
Feb 25 23:32:19 tonkachi kernel: se0D]<7>090<c xh: `MEM0'vcd
0000:02:00.0: xhci_handle_event - calling handle_tx_event
Feb 25 23:32:19 tonkachi kernel: <0.0: @37805430 375b7ad0 0,T:7>xhih [c
Feb 25 23:32:19 tonkachi kernel: 7x140 i6b 6:00l38,0.0:3]
xhci_01ie5R'vecd 0000:02:00.0: xhci_handle_event - calling handle_tx_event
Feb 25 23:32:19 tonkachi kernel: se0( 0:020i_h t dma_hcd 0000:02:00.0:
`M50537805460 375i8R 05c 005.0 7c0 c0c[f0:
Feb 25 23:32:19 tonkachi kernel: <370oinhcd 005107805470 375b7b00
00000000 01000000 02038001
Feb 25 23:32:19 tonkachi kernel: <37800ointhcd 0000:15.17805480
375d61f_,DI5d00019
Feb 25 23:32:19 tonkachi kernel: 1>d4x2d0i f: c
Feb 25 23:32:19 tonkachi kernel: 370oinhcd 0000:2i
Feb 25 23:32:19 tonkachi kernel: 00f[ 02:00.0: xhci_handle_event -
calling handle_tx_event
Feb 25 23:32:19 tonkachi kernel: 370ohcd 0051078054c0 375b7b30 00000000
01000000 02038001
Feb 25 23:32:20 tonkachi kernel: 37800ohcd 00005.178054d0 _,DI5.d 00009
Feb 25 23:32:20 tonkachi kernel: 1>d8x2d0i f:c
Feb 25 23:32:20 tonkachi kernel: 3780x4en = 0f1uh:5178054e0 375b7b40
00000000 01000000 0203800_,DI5d 00019
Feb 25 23:32:20 tonkachi kernel: 1>d62c0c f: Gc
Feb 25 23:32:20 tonkachi kernel: 37800oinhcd 0000:5.178054f0 375b7b50
00000000 01000000 02038001
Feb 25 23:32:20 tonkachi kernel: 1>d3x2c0c f: c
Feb 25 23:32:20 tonkachi kernel: 37800ohcd 0000:02:00.0: `M5.17805500
_,DIn5d00029
Feb 25 23:32:20 tonkachi kernel: 1>d8x2d0i f:
Feb 25 23:32:20 tonkachi kernel: 3780ohcd 00084nt0'3n 0000:02:00.0:
xhci_handle_event - calling handle_tx_event
Feb 25 23:32:20 tonkachi kernel: 60#hc
Feb 25 23:32:20 tonkachi kernel: : d A) 105.965349] xhci_hcd0cic:
`MEM_WR[c.S1tx00i
Feb 25 23:32:20 tonkachi kernel: 669dh8c001,a0:7 0[MA[ 10hh0:
`MEM_WRITE_DWORD(3'b000, 32'hffffc90000c7c024, 32'h8, 4'hf);
Feb 25 23:32:20 tonkachi kernel: [ 106.005103] xhci_hcd 0000:02:00.0:
WARN: Stalled endpoint
Feb 25 23:32:22 tonkachi kernel: <7008.h8Dhr:0:0248 ]0 158e 3x)
0nsf:02:00.0: Event ring deq =t867n = 13, sa008hc11Dhr:0:0209 ]0 198pe
00s)n:02:0t97cn = 31, status = 0
Feb 25 23:32:22 tonkachi kernel: 0i4<1= TfC (f>es uhcd 0000: f86c0, len
= 18, status = 0



with un-plugging, I get:

Feb 25 23:33:07 tonkachi kernel: [ 153.205311] xhci_hcd 0000:02:00.0:
WARN: transfer error on endpoint
Feb 25 23:33:08 tonkachi kernel: [ 154.008265] xhci_hcd 0000:02:00.0:
WARN: transfer error on endpoint
Feb 25 23:33:08 tonkachi kernel: [ 154.008995] xhci_hcd 0000:02:00.0:
WARN: transfer error on endpoint



at this point, rmmod xhci doesn't even work anymore, I get stuff during
/ around the rmmod like:

Feb 25 23:34:24 tonkachi kernel: [ 230.133711] xhci_hcd 0000:02:00.0:
remove, state 1
Feb 25 23:34:24 tonkachi kernel: [ 230.133727] usb usb2: USB
disconnect, address 1
Feb 25 23:34:24 tonkachi kernel: [ 230.133731] usb 2-4: USB disconnect,
address 2
Feb 25 23:34:24 tonkachi kernel: [ 230.133735] usb 2-4.1: USB
disconnect, address 3



at the end, with rmmod still not returning, but doing a re-plug, I get:


Feb 25 23:36:37 tonkachi kernel: [ 363.295298] rmmod D
ffff88002834fa28 0 2818 2802 0x00000004
Feb 25 23:36:37 tonkachi kernel: [ 363.295307] ffff88022f581b88
0000000000000086 0000000000000000 0000000000000282
Feb 25 23:36:37 tonkachi kernel: [ 363.295315] 00000000fffffffe
ffffffff81a0bf78 ffff88023fc3c8a0 00000000ffffe4be
Feb 25 23:36:37 tonkachi kernel: [ 363.295323] ffff8802332403c0
ffff88022f581fd8 000000000000fa28 ffff8802332403c0
Feb 25 23:36:37 tonkachi kernel: [ 363.295331] Call Trace:
Feb 25 23:36:37 tonkachi kernel: [ 363.295344] [<ffffffff813b3ff5>]
usb_kill_urb+0x85/0xc0
Feb 25 23:36:37 tonkachi kernel: [ 363.295353] [<ffffffff8107d8b0>] ?
autoremove_wake_function+0x0/0x40
Feb 25 23:36:37 tonkachi kernel: [ 363.295360] [<ffffffff813b43c6>] ?
usb_get_urb+0x16/0x20
Feb 25 23:36:37 tonkachi kernel: [ 363.295367] [<ffffffff813b27db>]
usb_hcd_flush_endpoint+0xcb/0x1b0
Feb 25 23:36:37 tonkachi kernel: [ 363.295374] [<ffffffff813b4d18>]
usb_disable_endpoint+0x58/0x90
Feb 25 23:36:37 tonkachi kernel: [ 363.295381] [<ffffffff813b4dd9>]
usb_disable_device+0x89/0x1f0
Feb 25 23:36:37 tonkachi kernel: [ 363.295388] [<ffffffff813adc3d>]
usb_disconnect+0xfd/0x180
Feb 25 23:36:37 tonkachi kernel: [ 363.295394] [<ffffffff813adbff>]
usb_disconnect+0xbf/0x180
Feb 25 23:36:37 tonkachi kernel: [ 363.295400] [<ffffffff813b1a5d>]
usb_remove_hcd+0xcd/0x130
Feb 25 23:36:37 tonkachi kernel: [ 363.295408] [<ffffffff813c2236>]
usb_hcd_pci_remove+0x26/0xa0
Feb 25 23:36:37 tonkachi kernel: [ 363.295416] [<ffffffff812a0fdf>]
pci_device_remove+0x2f/0x60
Feb 25 23:36:37 tonkachi kernel: [ 363.295433] [<ffffffff81334bd3>]
__device_release_driver+0x53/0xb0
Feb 25 23:36:37 tonkachi kernel: [ 363.295440] [<ffffffff81334cf8>]
driver_detach+0xc8/0xd0
Feb 25 23:36:37 tonkachi kernel: [ 363.295448] [<ffffffff81333c65>]
bus_remove_driver+0x85/0xe0
Feb 25 23:36:37 tonkachi kernel: [ 363.295456] [<ffffffff813352ba>]
driver_unregister+0x5a/0x90
Feb 25 23:36:37 tonkachi kernel: [ 363.295464] [<ffffffff812a12d0>]
pci_unregister_driver+0x40/0xb0
Feb 25 23:36:37 tonkachi kernel: [ 363.295476] [<ffffffffa0048b80>]
xhci_unregister_pci+0x10/0x20 [xhci]
Feb 25 23:36:37 tonkachi kernel: [ 363.295485] [<ffffffffa004e459>]
xhci_hcd_cleanup+0x9/0xb [xhci]
Feb 25 23:36:37 tonkachi kernel: [ 363.295493] [<ffffffff81095768>]
sys_delete_module+0x1a8/0x270
Feb 25 23:36:37 tonkachi kernel: [ 363.295500] [<ffffffff81081bd9>] ?
up_read+0x9/0x10
Feb 25 23:36:37 tonkachi kernel: [ 363.295510] [<ffffffff81011f82>]
system_call_fastpath+0x16/0x1b




please let me know what other debugging I should do..


Akos
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From: Ákos Maróy on 27 Feb 2010 03:10
Sarah,

> Actually, I wonder if 2.6.32 stable needs commit bcef3fd from 2.6.33.
> If the xHCI driver wasn't cleaning up the endpoint rings properly after
> a transfer error, I suppose the hardware could get wedged.

I see. where would I get this commit from? I have to stick with 2.6.32,
as I'm using the binary ATI video driver, which doesn't work with 2.6.33...

> If the hardware wasn't responding properly to commands, then URBs
> wouldn't have been able to be killed, the USB core would have sat around
> waiting on those URBs, and rmmod could never exit. I need a more
> detailed log to figure out exactly why the hardware is wedged though.
> Let me make the less-verbose debugging patch so you don't get log
> corruption, and then we'll see what's going on.

let me know how I can use this..


Akos

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From: Ákos Maróy on 4 Mar 2010 09:00
Alan,

in this thread, earlier I wrote:

>> By the way, I noticed above that you have xhci-hcd installed. As far
>> as I know, that driver does not yet support system suspend. You should
>> try unloading xhci-hcd before doing the suspend (both with and without
>> CONFIG_USB_DEBUG).
>
> wow, rmmod xhci - and the suspend goes through fine!

now, I re-installed the system, and suspend doesn't work anymore.

if I have the xhci module loaded, it fails and returns to the screen
right away.

if I unload the xhci module, I get to the character console, and then
the machine hangs there - nothing happens anymore. only a power cycle helps.

I don't know what was different when at least suspend worked :(

I'll try to do some more debugging..


Akos

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