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Date: Sat, 01 Dec 2012 09:52:21 +0100 From: Udo van den Heuvel <udovdh@...all.nl> To: linux-usb@...r.kernel.org CC: Alan Stern <stern@...land.harvard.edu>, Jan Ceuleers <jan.ceuleers@...puter.org>, Clemens Ladisch <clemens@...isch.de>, Simon Jones <sijones2010@...il.com>, linux-kernel@...r.kernel.org Subject: Re: 3.4.4: disabling irq On 2012-11-19 17:41, Alan Stern wrote: > On Sat, 17 Nov 2012, Udo van den Heuvel wrote: >> How to proceed next? > > Firstly, what does /proc/interrupts say? > > Secondly, try building a kernel with the patch below and > CONFIG_USB_DEBUG enabled. Let's see what the dmesg log says when the > problem occurs. Message from syslogd@a at Dec 1 09:46:01 ... kernel:Disabling IRQ #18 ^C [root@a mesa]# cat /sys/kernel/debug/usb/ohci/*/registers bus pci, device 0000:00:12.0 OHCI Host Controller ohci_hcd OHCI 1.0, NO legacy support registers, rh state running control 0x08f HCFS=operational IE PLE CBSR=3 cmdstatus 0x00000 SOC=0 intrstatus 0x00000024 FNO SF intrenable 0x8000005a MIE RHSC UE RD WDH ed_controlhead 00004000 hcca frame 0xa078 fmintvl 0xa7782edf FIT FSMPS=0xa778 FI=0x2edf fmremaining 0x80001c56 FRT FR=0x1c56 periodicstart 0x2a2f lsthresh 0x0628 hub poll timer off roothub.a 02001205 POTPGT=2 NOCP NPS NDP=5(5) roothub.b 00000000 PPCM=0000 DR=0000 roothub.status 00008000 DRWE roothub.portstatus [0] 0x00000100 PPS roothub.portstatus [1] 0x00000303 LSDA PPS PES CCS roothub.portstatus [2] 0x00000100 PPS roothub.portstatus [3] 0x00000100 PPS roothub.portstatus [4] 0x00000100 PPS bus pci, device 0000:00:13.0 OHCI Host Controller ohci_hcd OHCI 1.0, NO legacy support registers, rh state running control 0x08f HCFS=operational IE PLE CBSR=3 cmdstatus 0x00000 SOC=0 intrstatus 0x00000026 FNO SF WDH intrenable 0x8000005a MIE RHSC UE RD WDH ed_controlhead 00092000 hcca frame 0xa2ab fmintvl 0xa7782edf FIT FSMPS=0xa778 FI=0x2edf fmremaining 0x8000184a FRT FR=0x184a periodicstart 0x2a2f lsthresh 0x0628 hub poll timer off roothub.a 02001205 POTPGT=2 NOCP NPS NDP=5(5) roothub.b 00000000 PPCM=0000 DR=0000 roothub.status 00008000 DRWE roothub.portstatus [0] 0x00000100 PPS roothub.portstatus [1] 0x00000100 PPS roothub.portstatus [2] 0x00000100 PPS roothub.portstatus [3] 0x00000103 PPS PES CCS roothub.portstatus [4] 0x00000100 PPS bus pci, device 0000:00:14.5 OHCI Host Controller ohci_hcd OHCI 1.0, NO legacy support registers, rh state running control 0x083 HCFS=operational CBSR=3 cmdstatus 0x00000 SOC=0 intrstatus 0x00000024 FNO SF intrenable 0x8000005a MIE RHSC UE RD WDH hcca frame 0xa000 fmintvl 0xa7782edf FIT FSMPS=0xa778 FI=0x2edf fmremaining 0x800014da FRT FR=0x14da periodicstart 0x2a2f lsthresh 0x0628 hub poll timer off roothub.a 02001202 POTPGT=2 NOCP NPS NDP=2(2) roothub.b 00000000 PPCM=0000 DR=0000 roothub.status 00008000 DRWE roothub.portstatus [0] 0x00000100 PPS roothub.portstatus [1] 0x00000100 PPS [root@a mesa]# cat /sys/kernel/debug/usb/devices T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 5 B: Alloc=757/900 us (84%), #Int= 0, #Iso= 3 D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1d6b ProdID=0001 Rev= 3.06 S: Manufacturer=Linux 3.6.7 ohci_hcd S: Product=OHCI Host Controller S: SerialNumber=0000:00:13.0 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms T: Bus=02 Lev=01 Prnt=01 Port=03 Cnt=01 Dev#= 2 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0471 ProdID=0311 Rev= 0.03 S: SerialNumber=01690000A5000000 C:* #Ifs= 3 Cfg#= 1 Atr=a0 MxPwr=500mA I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=Philips webcam E: Ad=82(I) Atr=03(Int.) MxPS= 1 Ivl=32ms E: Ad=85(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 0 Alt= 1 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=Philips webcam E: Ad=82(I) Atr=03(Int.) MxPS= 1 Ivl=32ms E: Ad=85(I) Atr=01(Isoc) MxPS= 196 Ivl=1ms I: If#= 0 Alt= 2 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=Philips webcam E: Ad=82(I) Atr=03(Int.) MxPS= 1 Ivl=32ms E: Ad=85(I) Atr=01(Isoc) MxPS= 292 Ivl=1ms I: If#= 0 Alt= 3 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=Philips webcam E: Ad=82(I) Atr=03(Int.) MxPS= 1 Ivl=32ms E: Ad=85(I) Atr=01(Isoc) MxPS= 448 Ivl=1ms I: If#= 0 Alt= 4 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=Philips webcam E: Ad=82(I) Atr=03(Int.) MxPS= 1 Ivl=32ms E: Ad=85(I) Atr=01(Isoc) MxPS= 592 Ivl=1ms I: If#= 0 Alt= 5 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=Philips webcam E: Ad=82(I) Atr=03(Int.) MxPS= 1 Ivl=32ms E: Ad=85(I) Atr=01(Isoc) MxPS= 704 Ivl=1ms I: If#= 0 Alt= 6 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=Philips webcam E: Ad=82(I) Atr=03(Int.) MxPS= 1 Ivl=32ms E: Ad=85(I) Atr=01(Isoc) MxPS= 776 Ivl=1ms I: If#= 0 Alt= 7 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=Philips webcam E: Ad=82(I) Atr=03(Int.) MxPS= 1 Ivl=32ms E: Ad=85(I) Atr=01(Isoc) MxPS= 840 Ivl=1ms I: If#= 0 Alt= 8 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=Philips webcam E: Ad=82(I) Atr=03(Int.) MxPS= 1 Ivl=32ms E: Ad=85(I) Atr=01(Isoc) MxPS= 896 Ivl=1ms I:* If#= 0 Alt= 9 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=Philips webcam E: Ad=82(I) Atr=03(Int.) MxPS= 1 Ivl=32ms E: Ad=85(I) Atr=01(Isoc) MxPS= 960 Ivl=1ms I: If#= 0 Alt=10 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=Philips webcam E: Ad=82(I) Atr=03(Int.) MxPS= 1 Ivl=32ms E: Ad=85(I) Atr=01(Isoc) MxPS= 960 Ivl=1ms I:* If#= 1 Alt= 0 #EPs= 0 Cls=01(audio) Sub=01 Prot=00 Driver=snd-usb-audio I:* If#= 2 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio I: If#= 2 Alt= 1 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=84(I) Atr=01(Isoc) MxPS= 90 Ivl=1ms I: If#= 2 Alt= 2 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=84(I) Atr=01(Isoc) MxPS= 46 Ivl=1ms I: If#= 2 Alt= 3 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=84(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 2 Alt= 4 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio E: Ad=84(I) Atr=01(Isoc) MxPS= 16 Ivl=1ms T: Bus=11 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=5000 MxCh= 2 B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 3.00 Cls=09(hub ) Sub=00 Prot=03 MxPS= 9 #Cfgs= 1 P: Vendor=1d6b ProdID=0003 Rev= 3.06 S: Manufacturer=Linux 3.6.7 xhci_hcd S: Product=xHCI Host Controller S: SerialNumber=0000:02:00.0 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms T: Bus=10 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 2 B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=1d6b ProdID=0002 Rev= 3.06 S: Manufacturer=Linux 3.6.7 xhci_hcd S: Product=xHCI Host Controller S: SerialNumber=0000:02:00.0 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms T: Bus=09 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=5000 MxCh= 2 B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 3.00 Cls=09(hub ) Sub=00 Prot=03 MxPS= 9 #Cfgs= 1 P: Vendor=1d6b ProdID=0003 Rev= 3.06 S: Manufacturer=Linux 3.6.7 xhci_hcd S: Product=xHCI Host Controller S: SerialNumber=0000:00:10.1 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms T: Bus=08 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 2 B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=1d6b ProdID=0002 Rev= 3.06 S: Manufacturer=Linux 3.6.7 xhci_hcd S: Product=xHCI Host Controller S: SerialNumber=0000:00:10.1 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms T: Bus=07 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=5000 MxCh= 2 B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 3.00 Cls=09(hub ) Sub=00 Prot=03 MxPS= 9 #Cfgs= 1 P: Vendor=1d6b ProdID=0003 Rev= 3.06 S: Manufacturer=Linux 3.6.7 xhci_hcd S: Product=xHCI Host Controller S: SerialNumber=0000:00:10.0 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms T: Bus=06 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 2 B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=1d6b ProdID=0002 Rev= 3.06 S: Manufacturer=Linux 3.6.7 xhci_hcd S: Product=xHCI Host Controller S: SerialNumber=0000:00:10.0 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms T: Bus=06 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 4 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=02(comm.) Sub=00 Prot=00 MxPS=64 #Cfgs= 2 P: Vendor=0525 ProdID=a4a2 Rev= 2.16 S: Manufacturer=Linux 2.6.21-omap1/musb_hdrc S: Product=RNDIS/Ethernet Gadget C: #Ifs= 2 Cfg#= 2 Atr=e0 MxPwr= 8mA I: If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=02 Prot=ff Driver= E: Ad=82(I) Atr=03(Int.) MxPS= 16 Ivl=32ms I: If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver= E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr= 8mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=06 Prot=00 Driver=(none) E: Ad=82(I) Atr=03(Int.) MxPS= 16 Ivl=32ms I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_subset I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_subset E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms T: Bus=05 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 5 B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1d6b ProdID=0002 Rev= 3.06 S: Manufacturer=Linux 3.6.7 ehci_hcd S: Product=EHCI Host Controller S: SerialNumber=0000:00:13.2 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms T: Bus=04 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 5 B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1d6b ProdID=0002 Rev= 3.06 S: Manufacturer=Linux 3.6.7 ehci_hcd S: Product=EHCI Host Controller S: SerialNumber=0000:00:12.2 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms T: Bus=03 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2 B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1d6b ProdID=0001 Rev= 3.06 S: Manufacturer=Linux 3.6.7 ohci_hcd S: Product=OHCI Host Controller S: SerialNumber=0000:00:14.5 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 5 B: Alloc= 11/900 us ( 1%), #Int= 1, #Iso= 0 D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1d6b ProdID=0001 Rev= 3.06 S: Manufacturer=Linux 3.6.7 ohci_hcd S: Product=OHCI Host Controller S: SerialNumber=0000:00:12.0 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=1.5 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=046d ProdID=c00c Rev= 6.20 S: Manufacturer=Logitech S: Product=USB Mouse C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=02 Driver=usbhid E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=10ms [root@a mesa]# service motion stop Stopping motion (via systemctl): [ OK ] [root@a mesa]# rmmod pwc [root@a mesa]# echo 0000:00:13.0 >/sys/bus/pci/drivers/ohci_hcd/unbind [root@a mesa]# echo 0000:00:13.0 >/sys/bus/pci/drivers/ohci_hcd/bind [root@a mesa]# modprobe pwc [root@a mesa]# service motion start Starting motion (via systemctl): [ OK ] [root@a mesa]# dmesg|sort|uniq ehci_hcd 0000:00:13.2: GetStatus port:4 status 001803 0 ACK POWER sig=j CSC CONNECT ehci_hcd 0000:00:13.2: GetStatus port:4 status 003002 0 ACK POWER OWNER sig=se0 CSC ehci_hcd 0000:00:13.2: GetStatus port:4 status 003801 0 ACK POWER OWNER sig=j CONNECT ehci_hcd 0000:00:13.2: port 4 full speed --> companion hub 2-0:1.0: 5 ports detected hub 2-0:1.0: debounce: port 4: total 100ms stable 100ms status 0x101 hub 2-0:1.0: local power source is good hub 2-0:1.0: no over-current protection hub 2-0:1.0: no power switching (usb 1.0) hub 2-0:1.0: port 4, status 0101, change 0001, 12 Mb/s hub 2-0:1.0: power on to power good time: 4ms hub 2-0:1.0: standalone hub hub 2-0:1.0: state 7 ports 5 chg 0000 evt 0010 hub 2-0:1.0: trying to enable port power on non-switchable hub hub 2-0:1.0: USB hub found hub 2-0:1.0: usb_probe_interface hub 2-0:1.0: usb_probe_interface - got id hub 5-0:1.0: debounce: port 4: total 100ms stable 100ms status 0x100 hub 5-0:1.0: debounce: port 4: total 100ms stable 100ms status 0x501 hub 5-0:1.0: port 4 not reset yet, waiting 50ms hub 5-0:1.0: port 4, status 0100, change 0001, 12 Mb/s hub 5-0:1.0: port 4, status 0501, change 0001, 480 Mb/s hub 5-0:1.0: state 7 ports 5 chg 0000 evt 0010 input: PWC snapshot button as /devices/pci0000:00/0000:00:13.0/usb2/2-4/input/input8 ohci_hcd 0000:00:12.0: IRQ: 24 8000005a ohci_hcd 0000:00:13.0: cmdstatus 0x00000 SOC=0 ohci_hcd 0000:00:13.0: control 0x083 HCFS=operational CBSR=3 ohci_hcd 0000:00:13.0: created debug files ohci_hcd 0000:00:13.0: ed_controlhead 00092000 ohci_hcd 0000:00:13.0: GetStatus roothub.portstatus [3] = 0x00010100 CSC PPS ohci_hcd 0000:00:13.0: GetStatus roothub.portstatus [3] = 0x00010101 CSC PPS CCS ohci_hcd 0000:00:13.0: GetStatus roothub.portstatus [3] = 0x00100103 PRSC PPS PES CCS ohci_hcd 0000:00:13.0: hcca frame #0004 ohci_hcd 0000:00:13.0: hcca frame #b161 ohci_hcd 0000:00:13.0: intrenable 0x8000005a MIE RHSC UE RD WDH ohci_hcd 0000:00:13.0: intrstatus 0x00000004 SF ohci_hcd 0000:00:13.0: intrstatus 0x00000024 FNO SF ohci_hcd 0000:00:13.0: irq 18, io mem 0xfeb4e000 ohci_hcd 0000:00:13.0: IRQ: 44 8000001a ohci_hcd 0000:00:13.0: IRQ: 4 8000001a ohci_hcd 0000:00:13.0: IRQ: 4 8000005a ohci_hcd 0000:00:13.0: IRQ: 64 5a ohci_hcd 0000:00:13.0: new USB bus registered, assigned bus number 2 ohci_hcd 0000:00:13.0: OHCI 1.0, NO legacy support registers, rh state running ohci_hcd 0000:00:13.0: OHCI controller state ohci_hcd 0000:00:13.0: OHCI Host Controller ohci_hcd 0000:00:13.0: remove, state 1 ohci_hcd 0000:00:13.0: roothub.a 02001205 POTPGT=2 NOCP NPS NDP=5(5) ohci_hcd 0000:00:13.0: roothub.b 00000000 PPCM=0000 DR=0000 ohci_hcd 0000:00:13.0: roothub graceful disconnect ohci_hcd 0000:00:13.0: roothub.portstatus [0] 0x00000100 PPS ohci_hcd 0000:00:13.0: roothub.portstatus [1] 0x00000100 PPS ohci_hcd 0000:00:13.0: roothub.portstatus [2] 0x00000100 PPS ohci_hcd 0000:00:13.0: roothub.portstatus [3] 0x00000103 PPS PES CCS ohci_hcd 0000:00:13.0: roothub.portstatus [3] 0x00010100 CSC PPS ohci_hcd 0000:00:13.0: roothub.portstatus [4] 0x00000100 PPS ohci_hcd 0000:00:13.0: roothub.status 00008000 DRWE ohci_hcd 0000:00:13.0: shutdown urb ffff8801d86233c0 ep1in-intr ohci_hcd 0000:00:13.0: supports USB remote wakeup ohci_hcd 0000:00:13.0: USB bus 2 deregistered ohci_hcd 0000:00:14.5: IRQ: 24 8000005a Philips webcam 2-4:1.0: usb_probe_interface Philips webcam 2-4:1.0: usb_probe_interface - got id pwc: Error (-1) re-submitting urb in pwc_isoc_handler. pwc: Iso frame 0 has error -18 pwc: Iso frame 1 has error -114 pwc: Iso frame 1 has error -18 pwc: Iso frame 2 has error -18 pwc: Iso frame 3 has error -114 pwc: Iso frame 3 has error -18 pwc: Iso frame 4 has error -18 pwc: Iso frame 5 has error -114 pwc: Iso frame 5 has error -18 pwc: Iso frame 6 has error -18 pwc: Iso frame 7 has error -114 pwc: Iso frame 7 has error -18 pwc: Iso frame 8 has error -18 pwc: Iso frame 9 has error -114 pwc: Iso frame 9 has error -18 pwc: Philips PCVC740K (ToUCam Pro)/PCVC840 (ToUCam II) USB webcam detected. pwc: Registered as video0. snd-usb-audio 2-4:1.1: usb_probe_interface snd-usb-audio 2-4:1.1: usb_probe_interface - got id usb 2-4: adding 2-4:1.0 (config #1, interface 0) usb 2-4: adding 2-4:1.1 (config #1, interface 1) usb 2-4: adding 2-4:1.2 (config #1, interface 2) usb 2-4: configuration #1 chosen from 1 choice usb 2-4: default language 0x0409 usb 2-4: ep0 maxpacket = 8 usb 2-4: new full-speed USB device number 2 using ohci_hcd usb 2-4: New USB device found, idVendor=0471, idProduct=0311 usb 2-4: New USB device strings: Mfr=0, Product=0, SerialNumber=1 usb 2-4: SerialNumber: 01690000A1000010 usb 2-4: skipped 1 descriptor after endpoint usb 2-4: skipped 2 descriptors after interface usb 2-4: skipped 4 descriptors after interface usb 2-4: udev 2, busnum 2, minor = 129 usb 2-4: unregistering device usb 2-4: unregistering interface 2-4:1.0 usb 2-4: unregistering interface 2-4:1.1 usb 2-4: unregistering interface 2-4:1.2 usb 2-4: usb_disable_device nuking all URBs usb 2-4: USB disconnect, device number 2 usb 2-4: usb_probe_device usbcore: deregistering interface driver Philips webcam usbcore: registered new interface driver Philips webcam usb usb2: adding 2-0:1.0 (config #1, interface 0) usb usb2: configuration #1 chosen from 1 choice usb usb2: default language 0x0409 usb usb2: Manufacturer: Linux 3.6.7 ohci_hcd usb usb2: New USB device found, idVendor=1d6b, idProduct=0001 usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb2: Product: OHCI Host Controller usb usb2: SerialNumber: 0000:00:13.0 usb usb2: udev 1, busnum 2, minor = 128 usb usb2: unregistering device usb usb2: unregistering interface 2-0:1.0 usb usb2: usb_disable_device nuking all URBs usb usb2: USB disconnect, device number 1 usb usb2: usb_probe_device [root@a mesa]# ^C I had to hurry as the debug patch overflows dmesg very quickly. That is the reason why the dmesg is sorted and uniq'd etc. I do hope there is enough info to further this issue. Kind regards, Udo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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