Re: Fw: [Bugme-new] [Bug 8104] New: kernel floods console with "connect-debounce failed"

On lun, 2007-03-05 at 11:28 +0100, Oliver Neukum wrote:

> please try unloading and reloading the ehci driver.
> 
> 	Regards
> 		Oliver

When the device is working:

on rmmod:
[ 5873.059133] ehci_hcd 0000:00:1d.7: remove, state 4
[ 5873.059143] ehci_hcd 0000:00:1d.7: roothub graceful disconnect
[ 5873.059151] usb usb1: USB disconnect, address 1
[ 5873.059156] usb usb1: unregistering device
[ 5873.059162] usb usb1: usb_disable_device nuking all URBs
[ 5873.059171] usb usb1: unregistering interface 1-0:1.0
[ 5873.059202] PM: Removing info for No Bus:usbdev1.1_ep81
[ 5873.061906]  usbdev1.1_ep81: ep_device_release called for
usbdev1.1_ep81
[ 5873.061965] PM: Removing info for usb:1-0:1.0
[ 5873.061984] usb 1-0:1.0: uevent
[ 5873.063834] PM: Removing info for No Bus:usbdev1.1
[ 5873.067939] PM: Removing info for No Bus:usbdev1.1_ep00
[ 5873.068500]  usbdev1.1_ep00: ep_device_release called for
usbdev1.1_ep00
[ 5873.068590] PM: Removing info for usb:usb1
[ 5873.068605] usb usb1: uevent
[ 5873.069125] ehci_hcd 0000:00:1d.7: stop
[ 5873.069137] ehci_hcd 0000:00:1d.7: reset command 010002 (park)=0
ithresh=1 period=1024 Reset HALT
[ 5873.073045] ehci_hcd 0000:00:1d.7: irq normal 0 err 0 reclaim 0 (lost
0)
[ 5873.073054] ehci_hcd 0000:00:1d.7: complete 0 unlink 0
[ 5873.073062] ehci_hcd 0000:00:1d.7: ehci_stop completed status 1000
Halt
[ 5873.073074] ehci_hcd 0000:00:1d.7: USB bus 1 deregistered
[ 5873.073676] ACPI: PCI interrupt for device 0000:00:1d.7 disabled

on modprobe:
[ 5893.958827] ehci_hcd: block sizes: qh 128 qtd 96 itd 192 sitd 96
[ 5893.959442] ACPI: PCI Interrupt 0000:00:1d.7[A] -> GSI 23 (level,
low) -> IRQ 19
[ 5893.959468] PCI: Setting latency timer of device 0000:00:1d.7 to 64
[ 5893.959477] ehci_hcd 0000:00:1d.7: EHCI Host Controller
[ 5893.960134] drivers/usb/core/inode.c: creating file '001'
[ 5893.960147] ehci_hcd 0000:00:1d.7: new USB bus registered, assigned
bus number 1
[ 5893.960161] ehci_hcd 0000:00:1d.7: reset hcs_params 0x104208 dbg=1
cc=4 pcc=2 ordered !ppc ports=8
[ 5893.960170] ehci_hcd 0000:00:1d.7: reset hcc_params 6871 thresh 7
uframes 1024 64 bit addr
[ 5893.960223] ehci_hcd 0000:00:1d.7: debug port 1
[ 5893.960232] PCI: cache line size of 32 is not supported by device
0000:00:1d.7
[ 5893.960238] ehci_hcd 0000:00:1d.7: supports USB remote wakeup
[ 5893.960253] ehci_hcd 0000:00:1d.7: irq 19, io mem 0xdc444000
[ 5893.960263] ehci_hcd 0000:00:1d.7: reset command 080002 (park)=0
ithresh=8 period=1024 Reset HALT
[ 5893.964161] ehci_hcd 0000:00:1d.7: init command 010001 (park)=0
ithresh=1 period=1024 RUN
[ 5893.964172] ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver
10 Dec 2004
[ 5893.964204] usb usb1: default language 0x0409
[ 5893.964222] usb usb1: new device strings: Mfr=3, Product=2,
SerialNumber=1
[ 5893.964227] usb usb1: Product: EHCI Host Controller
[ 5893.964233] usb usb1: Manufacturer: Linux 2.6.21-rc2 ehci_hcd
[ 5893.964238] usb usb1: SerialNumber: 0000:00:1d.7
[ 5893.964255] PM: Adding info for usb:usb1
[ 5893.964277] usb usb1: uevent
[ 5893.964830] usb usb1: usb_probe_device
[ 5893.964887] PM: Adding info for No Bus:usbdev1.1_ep00
[ 5893.965140] usb usb1: configuration #1 chosen from 1 choice
[ 5893.965155] usb usb1: adding 1-0:1.0 (config #1, interface 0)
[ 5893.965169] PM: Adding info for usb:1-0:1.0
[ 5893.965190] usb 1-0:1.0: uevent
[ 5893.965415] hub 1-0:1.0: usb_probe_interface
[ 5893.965421] hub 1-0:1.0: usb_probe_interface - got id
[ 5893.965427] hub 1-0:1.0: USB hub found
[ 5893.965441] hub 1-0:1.0: 8 ports detected
[ 5893.965446] hub 1-0:1.0: standalone hub
[ 5893.965450] hub 1-0:1.0: no power switching (usb 1.0)
[ 5893.965455] hub 1-0:1.0: individual port over-current protection
[ 5893.965460] hub 1-0:1.0: Single TT
[ 5893.965465] hub 1-0:1.0: TT requires at most 8 FS bit times (666 ns)
[ 5893.965472] hub 1-0:1.0: power on to power good time: 20ms
[ 5893.965481] hub 1-0:1.0: local power source is good
[ 5893.965487] hub 1-0:1.0: trying to enable port power on
non-switchable hub
[ 5893.967323] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.967336] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.969303] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.970302] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.971301] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.971313] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.972300] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.973301] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.974295] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.975293] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.975299] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.976299] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.977299] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.978291] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.978296] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.979291] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.980290] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.981289] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.981294] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.982289] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.983287] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.984289] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.984295] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.985286] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.986286] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.987288] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.987292] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.988287] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.989286] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.990284] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.990288] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.991283] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.992283] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.993283] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.993289] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.994283] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.995282] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.996282] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.996288] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.997286] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.998280] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.999279] usb 4-2: uhci_result_common: failed with status 440000
[ 5893.999285] usb 4-2: uhci_result_common: failed with status 440000
[ 5894.000279] usb 4-2: uhci_result_common: failed with status 440000
[ 5894.001279] usb 4-2: uhci_result_common: failed with status 440000
[ 5894.002277] usb 4-2: uhci_result_common: failed with status 440000
[ 5894.002282] usb 4-2: uhci_result_common: failed with status 440000
[ 5894.003277] usb 4-2: uhci_result_common: failed with status 440000
[ 5894.004276] usb 4-2: uhci_result_common: failed with status 440000
[ 5894.005276] usb 4-2: uhci_result_common: failed with status 440000
[ 5894.005281] usb 4-2: uhci_result_common: failed with status 440000
[ 5894.006275] usb 4-2: uhci_result_common: failed with status 440000
[ 5894.007278] usb 4-2: uhci_result_common: failed with status 440000
[ 5894.007886] usb 4-2: uhci_result_common: failed with status 440000
[ 5894.007891] usb 4-2: uhci_result_common: failed with status 440000
[ 5894.007917] hub 4-0:1.0: state 7 ports 2 chg 0000 evt 0004
[ 5894.007932] uhci_hcd 0000:00:1d.2: port 2 portsc 008a,00
[ 5894.007944] hub 4-0:1.0: port 2, status 0100, change 0003, 12 Mb/s
[ 5894.007947] usb 4-2: USB disconnect, address 5
[ 5894.007949] usb 4-2: unregistering device
[ 5894.007952] usb 4-2: usb_disable_device nuking all URBs
[ 5894.007960] uhci_hcd 0000:00:1d.2: shutdown urb dfb387d4 pipe
40408580 ep1in-intr
[ 5894.008275] uhci_hcd 0000:00:1d.2: release dev 5 ep81-INT, period 1,
phase 0, 23 us
[ 5894.008280] usb 4-2: uhci_result_common: failed with status 440000
[ 5894.009279] uhci_hcd 0000:00:1d.2: shutdown urb dfc57a14 pipe
00418580 ep3in-iso
[ 5894.009285] uhci_hcd 0000:00:1d.2: shutdown urb dff3d414 pipe
00418580 ep3in-iso
[ 5894.010278] uhci_hcd 0000:00:1d.2: release dev 5 ep83-ISO, period 1,
phase 0, 22 us
[ 5894.010284] usb 4-2: unregistering interface 4-2:1.0
[ 5894.010308] PM: Removing info for No Bus:usbdev4.5_ep81
[ 5894.010335]  usbdev4.5_ep81: ep_device_release called for
usbdev4.5_ep81
[ 5894.010353] PM: Removing info for No Bus:usbdev4.5_ep02
[ 5894.010368]  usbdev4.5_ep02: ep_device_release called for
usbdev4.5_ep02
[ 5894.010382] PM: Removing info for No Bus:usbdev4.5_ep82
[ 5894.010397]  usbdev4.5_ep82: ep_device_release called for
usbdev4.5_ep82
[ 5894.010447] PM: Removing info for No Bus:hci0
[ 5894.068044] PM: Adding info for No Bus:usbdev1.1_ep81
[ 5894.068086] PM: Adding info for No Bus:usbdev1.1
[ 5894.068100] drivers/usb/core/inode.c: creating file '001'
[ 5894.219935] PM: Removing info for usb:4-2:1.0
[ 5894.219973] usb 4-2:1.0: uevent
[ 5894.220005] usb 4-2: unregistering interface 4-2:1.1
[ 5894.220039] PM: Removing info for No Bus:usbdev4.5_ep03
[ 5894.220072]  usbdev4.5_ep03: ep_device_release called for
usbdev4.5_ep03
[ 5894.220100] PM: Removing info for No Bus:usbdev4.5_ep83
[ 5894.220128]  usbdev4.5_ep83: ep_device_release called for
usbdev4.5_ep83
[ 5894.220166] PM: Removing info for usb:4-2:1.1
[ 5894.220179] usb 4-2:1.1: uevent
[ 5894.220244] PM: Removing info for No Bus:usbdev4.5
[ 5894.220300] PM: Removing info for No Bus:usbdev4.5_ep00
[ 5894.220328]  usbdev4.5_ep00: ep_device_release called for
usbdev4.5_ep00
[ 5894.220401] PM: Removing info for usb:4-2
[ 5894.220413] usb 4-2: uevent
[ 5894.298676] hub 4-0:1.0: debounce: port 2: total 100ms stable 100ms
status 0x100
[ 5894.298692] hub 1-0:1.0: state 7 ports 8 chg 0000 evt 0040
[ 5894.298726] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5894.298740] hub 1-0:1.0: port 6, status 0501, change 0001, 480 Mb/s
[ 5894.364348] hub 1-0:1.0: debounce: port 6: total 100ms stable 100ms
status 0x501
[ 5894.388509] ehci_hcd 0000:00:1d.7: port 6 full speed --> companion
[ 5894.388524] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 003801
POWER OWNER sig=j CONNECT
[ 5894.388535] hub 1-0:1.0: port 6 not reset yet, waiting 50ms
[ 5894.408846] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 003002
POWER OWNER sig=se0 CSC
[ 5894.408896] hub 1-0:1.0: state 7 ports 8 chg 0000 evt 0040
[ 5894.450864] hub 4-0:1.0: state 7 ports 2 chg 0000 evt 0004
[ 5894.450887] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5894.450901] hub 4-0:1.0: port 2, status 0101, change 0001, 12 Mb/s
[ 5894.486606] hub 4-0:1.0: debounce: port 2: total 100ms stable 100ms
status 0x101
[ 5894.518845] usb 4-2: new full speed USB device using uhci_hcd and
address 6
[ 5894.635443] usb 4-2: new device strings: Mfr=0, Product=0,
SerialNumber=0
[ 5894.635478] PM: Adding info for usb:4-2
[ 5894.635504] usb 4-2: uevent
[ 5894.635533] usb 4-2: usb_probe_device
[ 5894.635583] PM: Adding info for No Bus:usbdev4.6_ep00
[ 5894.635620] usb 4-2: configuration #1 chosen from 1 choice
[ 5894.638405] usb 4-2: adding 4-2:1.0 (config #1, interface 0)
[ 5894.638429] PM: Adding info for usb:4-2:1.0
[ 5894.638452] usb 4-2:1.0: uevent
[ 5894.638484] hci_usb 4-2:1.0: usb_probe_interface
[ 5894.638490] hci_usb 4-2:1.0: usb_probe_interface - got id
[ 5894.640420] PM: Adding info for No Bus:hci0
[ 5894.640497] PM: Adding info for No Bus:usbdev4.6_ep81
[ 5894.640546] PM: Adding info for No Bus:usbdev4.6_ep02
[ 5894.640596] PM: Adding info for No Bus:usbdev4.6_ep82
[ 5894.640631] usb 4-2: adding 4-2:1.1 (config #1, interface 1)
[ 5894.640644] PM: Adding info for usb:4-2:1.1
[ 5894.640664] usb 4-2:1.1: uevent
[ 5894.640712] PM: Adding info for No Bus:usbdev4.6_ep03
[ 5894.640765] PM: Adding info for No Bus:usbdev4.6_ep83
[ 5894.640816] PM: Adding info for No Bus:usbdev4.6
[ 5894.640842] drivers/usb/core/inode.c: creating file '006'
[ 5894.644334] uhci_hcd 0000:00:1d.2: reserve dev 6 ep81-INT, period 1,
phase 0, 23 us
[ 5894.644364] uhci_hcd 0000:00:1d.2: reserve dev 6 ep83-ISO, period 1,
phase 0, 22 us
[ 5895.409272] hub 1-0:1.0: hub_suspend
[ 5895.409291] ehci_hcd 0000:00:1d.7: suspend root hub
[ 5895.409326] usb usb1: usb auto-suspend

When the device is NOT working:
on rmmod:
[ 5956.605038] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001002
POWER sig=se0 CSC
[ 5956.606976] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5956.611471] ehci_hcd 0000:00:1d.7: remove, state 1
[ 5956.611480] ehci_hcd 0000:00:1d.7: roothub graceful disconnect
[ 5956.612159] usb usb1: USB disconnect, address 1
[ 5956.617042] hub 1-0:1.0: hub_port_status failed (err = -19)
[ 5956.617053] hub 1-0:1.0: connect-debounce failed, port 6 disabled
[ 5956.617061] hub 1-0:1.0: cannot disable port 6 (err = -19)
[ 5956.617072] hub 1-0:1.0: state 0 ports 8 chg 0000 evt 0040
[ 5956.617207] usb usb1: unregistering device
[ 5956.617213] usb usb1: usb_disable_device nuking all URBs
[ 5956.617273] usb usb1: unregistering interface 1-0:1.0
[ 5956.617796] PM: Removing info for No Bus:usbdev1.1_ep81
[ 5956.619317]  usbdev1.1_ep81: ep_device_release called for
usbdev1.1_ep81
[ 5956.619649] PM: Removing info for usb:1-0:1.0
[ 5956.619856] usb 1-0:1.0: uevent
[ 5956.620063] PM: Removing info for No Bus:usbdev1.1
[ 5956.620323] PM: Removing info for No Bus:usbdev1.1_ep00
[ 5956.620574]  usbdev1.1_ep00: ep_device_release called for
usbdev1.1_ep00
[ 5956.629199] PM: Removing info for usb:usb1
[ 5956.630008] usb usb1: uevent
[ 5956.630312] ehci_hcd 0000:00:1d.7: stop
[ 5956.630330] ehci_hcd 0000:00:1d.7: reset command 010003 (park)=0
ithresh=1 period=1024 Reset RUN
[ 5956.630398] hub 4-0:1.0: state 8 ports 2 chg 0000 evt 0000
[ 5956.630409] usb usb4: usb auto-resume
[ 5956.630413] usb usb4: finish resume
[ 5956.630426] hub 4-0:1.0: hub_resume
[ 5956.630431] usb usb4: wakeup_rh
[ 5956.636411] ehci_hcd 0000:00:1d.7: irq normal 0 err 0 reclaim 0 (lost
0)
[ 5956.636418] ehci_hcd 0000:00:1d.7: complete 0 unlink 0
[ 5956.636427] ehci_hcd 0000:00:1d.7: ehci_stop completed status 1000
Halt
[ 5956.636439] ehci_hcd 0000:00:1d.7: USB bus 1 deregistered
[ 5956.637657] ACPI: PCI interrupt for device 0000:00:1d.7 disabled
[ 5956.659177] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.659195] hub 4-0:1.0: port 2, status 0101, change 0001, 12 Mb/s
[ 5956.663402] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.670761] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.674488] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.677960] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.681442] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.692156] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.696040] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.699525] uhci_hcd 0000:00:1d.2: port 2 portsc 0082,00
[ 5956.703081] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.706515] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.709946] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.715352] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.731839] uhci_hcd 0000:00:1d.2: port 2 portsc 0083,00
[ 5956.737799] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.743301] uhci_hcd 0000:00:1d.2: port 2 portsc 0082,00
[ 5956.761068] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.770317] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.780202] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.793564] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.799309] uhci_hcd 0000:00:1d.2: port 2 portsc 0082,00
[ 5956.804861] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.810720] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.816027] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.825327] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.837464] uhci_hcd 0000:00:1d.2: port 2 portsc 0082,00
[ 5956.846061] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.856714] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.870974] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.876415] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.881731] uhci_hcd 0000:00:1d.2: port 2 portsc 0082,00
[ 5956.891037] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.900627] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.906022] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.911815] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.924553] uhci_hcd 0000:00:1d.2: port 2 portsc 0082,00
[ 5956.933444] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.939226] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.948203] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.953422] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5956.975736] uhci_hcd 0000:00:1d.2: port 2 portsc 0082,00
[ 5957.007689] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.039648] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.054566] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.058804] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.063961] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.072492] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.081037] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.088968] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.093994] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.099558] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.109616] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.119231] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.127036] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.132342] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.137663] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.143455] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.152273] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.168561] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.168584] hub 4-0:1.0: debounce: port 2: total 1500ms stable 0ms
status 0x101
[ 5957.168590] hub 4-0:1.0: connect-debounce failed, port 2 disabled
[ 5957.168608] hub 4-0:1.0: state 7 ports 2 chg 0000 evt 0004
[ 5957.193671] hub 4-0:1.0: state 7 ports 2 chg 0000 evt 0004
[ 5957.193693] uhci_hcd 0000:00:1d.2: port 2 portsc 0082,00
[ 5957.193707] hub 4-0:1.0: port 2, status 0100, change 0001, 12 Mb/s
[ 5957.202877] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5957.208461] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
 [many more lines]

on modprobe:

[ 5999.188205] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5999.197761] uhci_hcd 0000:00:1d.2: port 2 portsc 0093,00
[ 5999.212286] ehci_hcd: block sizes: qh 128 qtd 96 itd 192 sitd 96
[ 5999.213921] ACPI: PCI Interrupt 0000:00:1d.7[A] -> GSI 23 (level,
low) -> IRQ 19
[ 5999.214448] PCI: Setting latency timer of device 0000:00:1d.7 to 64
[ 5999.214457] ehci_hcd 0000:00:1d.7: EHCI Host Controller
[ 5999.215277] drivers/usb/core/inode.c: creating file '001'
[ 5999.215667] ehci_hcd 0000:00:1d.7: new USB bus registered, assigned
bus number 1
[ 5999.216144] ehci_hcd 0000:00:1d.7: reset hcs_params 0x104208 dbg=1
cc=4 pcc=2 ordered !ppc ports=8
[ 5999.216156] ehci_hcd 0000:00:1d.7: reset hcc_params 6871 thresh 7
uframes 1024 64 bit addr
[ 5999.217785] ehci_hcd 0000:00:1d.7: debug port 1
[ 5999.217799] PCI: cache line size of 32 is not supported by device
0000:00:1d.7
[ 5999.217806] ehci_hcd 0000:00:1d.7: supports USB remote wakeup
[ 5999.217821] ehci_hcd 0000:00:1d.7: irq 19, io mem 0xdc444000
[ 5999.217832] ehci_hcd 0000:00:1d.7: reset command 080002 (park)=0
ithresh=8 period=1024 Reset HALT
[ 5999.221711] ehci_hcd 0000:00:1d.7: init command 010001 (park)=0
ithresh=1 period=1024 RUN
[ 5999.221728] ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver
10 Dec 2004
[ 5999.221763] usb usb1: default language 0x0409
[ 5999.221781] usb usb1: new device strings: Mfr=3, Product=2,
SerialNumber=1
[ 5999.221787] usb usb1: Product: EHCI Host Controller
[ 5999.221792] usb usb1: Manufacturer: Linux 2.6.21-rc2 ehci_hcd
[ 5999.221798] usb usb1: SerialNumber: 0000:00:1d.7
[ 5999.221816] PM: Adding info for usb:usb1
[ 5999.221839] usb usb1: uevent
[ 5999.223305] usb usb1: usb_probe_device
[ 5999.223362] PM: Adding info for No Bus:usbdev1.1_ep00
[ 5999.223908] usb usb1: configuration #1 chosen from 1 choice
[ 5999.223925] usb usb1: adding 1-0:1.0 (config #1, interface 0)
[ 5999.223938] PM: Adding info for usb:1-0:1.0
[ 5999.223957] usb 1-0:1.0: uevent
[ 5999.224507] hub 1-0:1.0: usb_probe_interface
[ 5999.224513] hub 1-0:1.0: usb_probe_interface - got id
[ 5999.224520] hub 1-0:1.0: USB hub found
[ 5999.224534] hub 1-0:1.0: 8 ports detected
[ 5999.224538] hub 1-0:1.0: standalone hub
[ 5999.224544] hub 1-0:1.0: no power switching (usb 1.0)
[ 5999.224549] hub 1-0:1.0: individual port over-current protection
[ 5999.224555] hub 1-0:1.0: Single TT
[ 5999.224561] hub 1-0:1.0: TT requires at most 8 FS bit times (666 ns)
[ 5999.224567] hub 1-0:1.0: power on to power good time: 20ms
[ 5999.224582] hub 1-0:1.0: local power source is good
[ 5999.224588] hub 1-0:1.0: trying to enable port power on
non-switchable hub
[ 5999.229739] uhci_hcd 0000:00:1d.2: port 2 portsc 0082,00
[ 5999.325205] PM: Adding info for No Bus:usbdev1.1_ep81
[ 5999.325904] PM: Adding info for No Bus:usbdev1.1
[ 5999.326055] drivers/usb/core/inode.c: creating file '001'
[ 5999.357054] hub 4-0:1.0: debounce: port 2: total 1250ms stable 100ms
status 0x100
[ 5999.357064] hub 4-0:1.0: state 7 ports 2 chg 0000 evt 0004
[ 5999.357076] hub 1-0:1.0: state 7 ports 8 chg 0000 evt 0040
[ 5999.357098] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.357107] hub 1-0:1.0: port 6, status 0501, change 0001, 480 Mb/s
[ 5999.369962] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.376666] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001002
POWER sig=se0 CSC
[ 5999.380818] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.399452] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.403801] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.408386] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.414546] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001002
POWER sig=se0 CSC
[ 5999.420914] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.427753] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.434617] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.441911] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.454517] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001002
POWER sig=se0 CSC
[ 5999.461407] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.473717] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.489035] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.496186] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.502728] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001002
POWER sig=se0 CSC
[ 5999.509232] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.515620] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.522366] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.529590] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.538937] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001002
POWER sig=se0 CSC
[ 5999.545027] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.551644] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.562029] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.568345] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.574443] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.605860] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.629855] usb usb4: suspend_rh (auto-stop)
[ 5999.637854] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.669810] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.677466] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.683446] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.686641] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.694235] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.698202] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001002
POWER sig=se0 CSC
[ 5999.708509] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.727479] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.735054] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.742765] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.751978] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.759329] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.770328] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.787838] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.796368] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.800848] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.808632] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.823582] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.830804] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.835923] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.841296] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.845015] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT
[ 5999.852711] ehci_hcd 0000:00:1d.7: GetStatus port 6 status 001803
POWER sig=j CSC CONNECT



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