DMESG log from CONFIG_DUMMY_IRQ per your instructions [ 8561.353244] ath9k: ath9k: Driver unloaded [ 8627.529948] ehci-pci 0000:00:1a.0: remove, state 1 [ 8627.529961] ehci-pci 0000:00:1a.0: roothub graceful disconnect [ 8627.529973] usb usb1: USB disconnect, device number 1 [ 8627.529979] usb 1-1: USB disconnect, device number 2 [ 8627.529984] usb 1-1.1: USB disconnect, device number 3 [ 8627.529988] usb 1-1.1: unregistering device [ 8627.529994] usb 1-1.1: unregistering interface 1-1.1:1.0 [ 8627.530101] usb 1-1.1: unlink qh1-0e01/ffff880241e95180 start 0 [1/3 us] [ 8627.530110] ehci-pci 0000:00:1a.0: shutdown urb ffff88023f922600 ep1in-intr [ 8627.559559] usbhid 1-1.1:1.0: removing 0 minor [ 8627.560402] usb 1-1.1: usb_disable_device nuking all URBs [ 8627.561008] usb 1-1.2: USB disconnect, device number 4 [ 8627.561022] usb 1-1.2: unregistering device [ 8627.561034] usb 1-1.2: unregistering interface 1-1.2:1.0 [ 8627.561432] usb 1-1.2: unlink qh1-0e01/ffff88023fe57500 start 0 [1/2 us] [ 8627.561456] ehci-pci 0000:00:1a.0: shutdown urb ffff880243aceb40 ep1in-intr [ 8627.563903] ehci-pci 0000:00:1a.0: shutdown urb ffff880243ace6c0 ep2in-bulk [ 8627.563918] ehci-pci 0000:00:1a.0: shutdown urb ffff880243ace9c0 ep2in-bulk [ 8627.564084] usb 1-1: clear tt buffer port 2, a4 ep2 t04048d80 [ 8627.566562] usb 1-1.2: unregistering interface 1-1.2:1.1 [ 8627.566715] usb 1-1.2: usb_disable_device nuking all URBs [ 8627.566993] usb 1-1.3: USB disconnect, device number 5 [ 8627.567003] usb 1-1.3: unregistering device [ 8627.567011] usb 1-1.3: unregistering interface 1-1.3:1.0 [ 8627.615764] usb 1-1.3: unregistering interface 1-1.3:1.1 [ 8627.615844] usb 1-1.3: usb_disable_device nuking all URBs [ 8627.616210] usb 1-1: unregistering device [ 8627.616219] usb 1-1: unregistering interface 1-1:1.0 [ 8627.616303] usb 1-1: unlink qh256-0001/ffff88023fb6e280 start 1 [1/0 us] [ 8627.616327] ehci-pci 0000:00:1a.0: shutdown urb ffff88023fe9a240 ep1in-intr [ 8627.618111] usb 1-1: usb_disable_device nuking all URBs [ 8627.618990] usb usb1: unregistering device [ 8627.619001] usb usb1: unregistering interface 1-0:1.0 [ 8627.619100] ehci-pci 0000:00:1a.0: shutdown urb ffff88023fc0a300 ep1in-intr [ 8627.619230] usb usb1: usb_disable_device nuking all URBs [ 8627.619873] ehci-pci 0000:00:1a.0: stop [ 8627.620405] ehci-pci 0000:00:1a.0: reset command 0010002 (park)=0 ithresh=1 period=1024 Reset HALT [ 8627.624708] ehci-pci 0000:00:1a.0: irq normal 193 err 3 iaa 90 (lost 0) [ 8627.624719] ehci-pci 0000:00:1a.0: complete 195 unlink 8 [ 8627.624732] ehci-pci 0000:00:1a.0: ehci_stop completed status 1000 Halt [ 8627.624760] ehci-pci 0000:00:1a.0: USB bus 1 deregistered [ 8652.756509] dummy-irq: registered for IRQ 16 On Tue, Aug 20, 2013 at 6:36 PM, Kevin Archer <kevin.archer88@xxxxxxxxx> wrote: > Here are the registers for 0000:00:1a.0 and 0000:00:1d.0 prior to > inserting any usb 2.0 device > I have not included the "after" logs as there were no changes that > occurred to the file(s) after a device was plugged in. > > Will work on and add the CONFIG_DUMMY_IRQ logs, but it appears there > are errors in the before logs. > > Thanks > > On Sat, Aug 17, 2013 at 8:54 PM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: >> On Sat, 17 Aug 2013, Kevin Archer wrote: >> >>> Issue similar to Ming Lei post of June 26th 2013 >>> >>> USB 2.0 ports "appear" to operate correctly in 2.6.33 and 2.6.39 but >>> not after going to 3.1 >>> >>> >>> See detailed log in below link: >>> >>> https://bugs.launchpad.net/bugs/1210858 >> >> The log file contains this line: >> >> [ 2.030639] irq 16: nobody cared (try booting with the "irqpoll" option) >> >> Not surprisingly, IRQ 16 is the one used by the EHCI (USB-2) >> controller. No doubt that's why you were asked to test with the >> irqpoll option. >> >> This problem is most likely caused by some other part of the kernel. >> It won't be easy to tell which, however. Do any kernel versions work >> okay? >> >> To get more information, run a kernel that was built with >> CONFIG_USB_DEBUG enabled. Then go to the >> /sys/kernel/debug/usb/ehci/0000:00:1a.0 directory and post a copy of >> the "registers" file there. In fact, get two copies of that file: one >> before plugging any device into a USB-2 port, and one while a device is >> plugged in. >> >> Another thing you can try: Run a kernel with CONFIG_DUMMY_IRQ enabled. >> Do: >> >> rmmod ath9k >> echo 0000:00:1a.0 >/sys/bus/pci/drivers/ehci-pci/unbind >> modprobe dummy-irq irq=16 >> >> and see what shows up in the dmesg log. >> >> Alan Stern >> -- 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
