On 02/06/2013 03:51 PM, Felipe Balbi wrote: > Hi, > > On Wed, Feb 06, 2013 at 05:27:52PM +0530, Vivek Gautam wrote: >> Hi Tony, >> >> >> On Fri, Oct 5, 2012 at 9:57 PM, Tony Lindgren <tony@xxxxxxxxxxx> wrote: >>> * Tony Lindgren <tony@xxxxxxxxxxx> [121004 18:41]: >>>>> >>>>>> Also on the EHCI port, I've seen issues where unplugging >>>>>> the cable hangs kernel with an infinite loop. But that happens >>>>>> only occasionally, sorry does not seem to happen right >>>>>> now so no output to paste here. Or maybe this issue >>>>>> has already been fixed? >>> >>> Looks like the system eventually recovers from the EHCI issue >>> after about fivew minutes or so of spamming the logs. It seems >>> the ehci-omap errors are: >>> >>> [62934.201538] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 31 >>> [62934.201660] ehci-omap ehci-omap.0: devpath 1.3.7 ep0out 3strikes >>> [62934.201873] ehci-omap ehci-omap.0: reused qh ea5632c0 schedule >>> >>> More data below. >>> >> >> Is this issue fixed ? >> Actually we too are getting very similar issue with samsung exynos5250 hardware. >> With latest 'usb-next' kernel and supporting arch patches, when i use >> following test scenerio: >> Connect a USB 2.0 external hub to USB 2.0 port, and connect mice or >> keyboard enumeration and >> functionality is fine but once disconnecting the HID we get to see the >> error log: >> hid-generic 0003:04B3:3025.0002: can't reset device, >> s5p-ehci-1.3/input0, status -71 >> >> When i tried to enable CONFIG_USB_DEBUG, get the following log: > > looks like it's not OMAP-specific. Alan any tips ? > I can't reproduce the problem on Panda, but I can on Beagle with a slightly different behaviour. 1) connecting/disconnecting device directly to the beagleboard's USB port works fine. 2) If I connect a USB Hub to the port and connect a device to it after the hub has autosuspended, the device is never detected. doing lsusb after that triggers the detection and produces a lot of transaction errors. Beagle log is below, before and after 'lsusb' I suppose this doesn't affect Panda because it has a hub connected immediately below the root hub that never suspends (as ethernet is hardwired to it). So there must be some problem in the hub drivers. cheers, -roger root@beagleboard:~# [ 62.666595] usb usb1: usb wakeup-resume [ 62.670684] usb usb1: usb auto-resume [ 62.674591] ehci-omap ehci-omap.0: resume root hub [ 62.679687] hub 1-0:1.0: hub_resume [ 62.683471] ehci-omap ehci-omap.0: GetStatus port:2 status 001803 0 ACK POWER sig=j CSC CONNECT [ 62.692779] hub 1-0:1.0: port 2: status 0501 change 0001 [ 62.772460] hub 1-0:1.0: state 7 ports 3 chg 0004 evt 0000 [ 62.778533] hub 1-0:1.0: port 2, status 0501, change 0000, 480 Mb/s [ 62.849182] ehci-omap ehci-omap.0: port 2 reset complete, port enabled [ 62.856109] ehci-omap ehci-omap.0: GetStatus port:2 status 001005 0 ACK POWER sig=se0 PE CONNECT [ 62.929931] usb 1-2: new high-speed USB device number 4 using ehci-omap [ 62.998352] ehci-omap ehci-omap.0: port 2 reset complete, port enabled [ 63.005279] ehci-omap ehci-omap.0: GetStatus port:2 status 001005 0 ACK POWER sig=se0 PE CONNECT [ 63.107635] usb 1-2: udev 4, busnum 1, minor = 3 [ 63.112548] usb 1-2: New USB device found, idVendor=0409, idProduct=005a [ 63.119720] usb 1-2: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 63.128936] usb 1-2: usb_probe_device [ 63.132812] usb 1-2: configuration #1 chosen from 1 choice [ 63.139160] usb 1-2: adding 1-2:1.0 (config #1, interface 0) [ 63.145629] hub 1-2:1.0: usb_probe_interface [ 63.150146] hub 1-2:1.0: usb_probe_interface - got id [ 63.155578] hub 1-2:1.0: USB hub found [ 63.200195] hub 1-2:1.0: 4 ports detected [ 63.204467] hub 1-2:1.0: standalone hub [ 63.208679] hub 1-2:1.0: ganged power switching [ 63.213470] hub 1-2:1.0: global over-current protection [ 63.219055] hub 1-2:1.0: Single TT [ 63.222747] hub 1-2:1.0: TT requires at most 16 FS bit times (1332 ns) [ 63.229644] hub 1-2:1.0: Port indicators are supported [ 63.235137] hub 1-2:1.0: power on to power good time: 0ms [ 63.242584] hub 1-2:1.0: local power source is good [ 63.247955] hub 1-2:1.0: no over-current condition exists [ 63.254852] hub 1-2:1.0: enabling power on all ports [ 63.357482] usb 1-2: link qh256-0001/cf68f6c0 start 1 [1/0 us] [ 63.364044] hub 1-2:1.0: state 7 ports 4 chg 0000 evt 0000 [ 63.370086] hub 1-2:1.0: hub_suspend [ 63.374023] usb 1-2: unlink qh256-0001/cf68f6c0 start 1 [1/0 us] [ 63.384948] usb 1-2: usb auto-suspend, wakeup 1 [ 63.410217] hub 1-0:1.0: hub_suspend [ 63.414062] usb usb1: bus auto-suspend, wakeup 1 [ 63.419036] ehci-omap ehci-omap.0: suspend root hub root@beagleboard:~# root@beagleboard:~# lsusb [ 80.925262] usb usb1: usb auto-resume [ 80.929351] ehci-omap ehci-omap.0: resume root hub [ 80.934539] hub 1-0:1.0: hub_resume [ 80.938323] hub 1-0:1.0: port 2: status 0507 change 0000 [ 80.945373] hub 1-0:1.0: state 7 ports 3 chg 0000 evt 0000 [ 80.952026] hub 1-0:1.0: hub_suspend [ 80.956024] usb usb1: bus auto-suspend, wakeup 1 [ 80.961059] ehci-omap ehci-omap.0: suspend root hub [ 80.968414] usb usb1: usb auto-resume [ 80.980804] ehci-omap ehci-omap.0: resume root hub [ 80.985900] hub 1-0:1.0: hub_resume [ 80.989807] hub 1-0:1.0: port 2: status 0507 change 0000 [ 80.995941] hub 1-0:1.0: state 7 ports 3 chg 0000 evt 0000 [ 81.001892] hub 1-0:1.0: hub_suspend [ 81.005767] usb usb1: bus auto-suspend, wakeup 1 [ 81.010650] ehci-omap ehci-omap.0: suspend root hub [ 81.017913] usb usb1: usb auto-resume [ 81.035461] ehci-omap ehci-omap.0: resume root hub [ 81.040557] hub 1-0:1.0: hub_resume [ 81.044433] hub 1-0:1.0: port 2: status 0507 change 0000 [ 81.050201] usb 1-2: usb auto-resume [ 81.054504] hub 1-0:1.0: state 7 ports 3 chg 0000 evt 0000 [ 81.091827] ehci-omap ehci-omap.0: GetStatus port:2 status 001005 0 ACK POWER sig=se0 PE CONNECT [ 81.101409] hub 1-0:1.0: state 7 ports 3 chg 0000 evt 0004 [ 81.121917] usb 1-2: finish resume [ 81.125671] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 1 [ 81.132415] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 2 [ 81.139160] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 3 [ 81.145904] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 4 [ 81.152679] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 5 [ 81.159423] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 6 [ 81.166168] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 7 [ 81.172912] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 8 [ 81.179656] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 9 [ 81.186431] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 10 [ 81.193298] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 11 [ 81.200164] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 12 [ 81.207031] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 13 [ 81.213928] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 14 [ 81.220794] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 15 [ 81.227569] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 16 [ 81.234344] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 17 [ 81.241119] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 18 [ 81.247894] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 19 [ 81.254699] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 20 [ 81.261535] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 21 [ 81.268402] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 22 [ 81.275207] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 23 [ 81.282043] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 24 [ 81.288909] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 25 [ 81.295806] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 26 [ 81.302673] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 27 [ 81.309539] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 28 [ 81.316406] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 29 [ 81.323303] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 30 [ 81.330169] ehci-omap ehci-omap.0: detected XactErr len 0/8 retry 31 [ 81.336944] ehci-omap ehci-omap.0: devpath 2 ep0in 3strikes [ 81.342987] usb 1-2: retry with reset-resume [ 81.413726] ehci-omap ehci-omap.0: port 2 full speed --> companion [ 81.420288] ehci-omap ehci-omap.0: GetStatus port:2 status 003801 0 ACK POWER OWNER sig=j CONNECT [ 81.430114] hub 1-0:1.0: port_wait_reset: err = -16 [ 81.435363] hub 1-0:1.0: port 2 not enabled, trying reset again... [ 81.442382] hub 1-0:1.0: state 7 ports 3 chg 0000 evt 0004 [ 81.667083] ehci-omap ehci-omap.0: GetStatus port:2 status 00300a 0 ACK POWER OWNER sig=se0 PEC CSC [ 81.677032] hub 1-0:1.0: logical disconnect on port 2 [ 81.682403] usb 1-2: gone after usb resume? status -19 [ 81.687896] usb 1-2: can't resume, status -19 [ 81.692565] hub 1-0:1.0: logical disconnect on port 2 [ 81.698394] hub 1-0:1.0: state 7 ports 3 chg 0004 evt 0004 [ 81.704376] ehci-omap ehci-omap.0: GetStatus port:2 status 00300a 0 ACK POWER OWNER sig=se0 PEC CSC [ 81.714172] hub 1-0:1.0: port 2, status 0100, change 0003, 12 Mb/s [ 81.720703] usb 1-2: USB disconnect, device number 4 [ 81.726043] usb 1-2: unregistering device [ 81.730346] usb 1-2: unregistering interface 1-2:1.0 [ 81.739257] usb 1-2: usb_disable_device nuking all URBs [ 81.750579] usb usb2: usb auto-resume [ 81.754699] ohci-omap3 ohci-omap3.0: resume root hub [ 81.840057] hub 2-0:1.0: hub_resume Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub root@beagleboard:~# [ 81.911682] hub 1-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x100 [ 81.919647] hub 2-0:1.0: state 7 ports 3 chg 0000 evt 0000 [ 81.925994] hub 1-0:1.0: hub_suspend [ 81.929840] usb usb1: bus auto-suspend, wakeup 1 [ 81.934814] ehci-omap ehci-omap.0: suspend root hub [ 81.940582] hub 2-0:1.0: hub_suspend [ 81.944458] usb usb2: bus auto-suspend, wakeup 1 [ 81.949401] ohci-omap3 ohci-omap3.0: suspend root hub -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
