On Mon, Mar 18, 2013 at 02:26:39PM -0700, Stephen Hemminger wrote: > On Mon, 18 Mar 2013 10:25:10 -0700 > Sarah Sharp <sarah.a.sharp@xxxxxxxxxxxxxxx> wrote: > > > When a device attached to the roothub is suspended, the endpoint rings > > are stopped. The host may generate a completion event with the > > completion code set to 'Stopped' or 'Stopped Invalid' when the ring is > > halted. The current xHCI code prints a warning in that case, which can > > be really annoying if the USB device is coming into and out of suspend. > > > > Remove the unnecessary warning. > > > > Signed-off-by: Sarah Sharp <sarah.a.sharp@xxxxxxxxxxxxxxx> > > --- > > > > Stephen, will you try this patch, and see if your warnings go away? > > > > Thanks, > > Sarah Sharp > > > The xHCI warnings go away, but using 3.9-rc3 gives a new warning from USB. > Not sure what colord is doing, I have not color controlled devices on USB, is it > searching for a scanner (there is none)? Possibly? It looks like the USB device was suspended, and then woken up so that colord could send it a message. The device never responds to the control transfer, and the request to cancel the URB never completes. Not good all around. Can you turn on CONFIG_USB_DEBUG and CONFIG_USB_XHCI_HCD_DEBUGGING, and send me the dmesg from boot? I know it will be a pretty big file, but I'd like to figure out what the heck colord is doing, and why URBs aren't being canceled properly. > [ 240.492536] INFO: task colord-sane:3517 blocked for more than 120 seconds. > [ 240.492542] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. > [ 240.492545] colord-sane D 0000000000000002 0 3517 1 0x00000000 > [ 240.492552] ffff88040b4e7808 0000000000000046 0000000000000292 ffff8803fb10a040 > [ 240.492560] ffff88040b4e77b8 ffff88040b754300 ffff88040b4e7fd8 0000000000013700 > [ 240.492570] ffff88040b4e7fd8 ffff88040b754300 ffff88040b4e7818 ffff88040dc46300 > [ 240.492579] Call Trace: > [ 240.492590] [<ffffffff814f5b5d>] schedule+0x65/0x67 > [ 240.492597] [<ffffffff813d0298>] usb_kill_urb+0xba/0xd8 > [ 240.492603] [<ffffffff8109067c>] ? bit_waitqueue+0x8c/0x8c > [ 240.492608] [<ffffffff813d0cbb>] usb_start_wait_urb+0x91/0xd4 > [ 240.492613] [<ffffffff813d0f25>] usb_control_msg+0xce/0x100 > [ 240.492618] [<ffffffff814f6cad>] ? _raw_spin_unlock_irqrestore+0x3f/0x55 > [ 240.492623] [<ffffffff813d1046>] usb_get_status+0x78/0xa4 > [ 240.492628] [<ffffffff813cb541>] usb_port_resume+0x23a/0x3ae > [ 240.492635] [<ffffffff810b71f1>] ? mark_held_locks+0x55/0x99 > [ 240.492639] [<ffffffff814f6c59>] ? _raw_spin_unlock_irq+0x2e/0x43 > [ 240.492645] [<ffffffff813da1c4>] generic_resume+0x1c/0x1e > [ 240.492650] [<ffffffff813d2ac8>] usb_resume_both+0x94/0x106 > [ 240.492654] [<ffffffff813d3b86>] ? usb_runtime_suspend+0x5d/0x5d > [ 240.492658] [<ffffffff813d3ba0>] usb_runtime_resume+0x1a/0x1c > [ 240.492664] [<ffffffff8137844e>] __rpm_callback+0x34/0x5b > [ 240.492669] [<ffffffff813784cb>] rpm_callback+0x56/0x79 > [ 240.492674] [<ffffffff8137947c>] rpm_resume+0x38a/0x4a7 > [ 240.492679] [<ffffffff8109067c>] ? bit_waitqueue+0x8c/0x8c > [ 240.492684] [<ffffffff81379797>] ? __pm_runtime_resume+0x62/0x8d > [ 240.492689] [<ffffffff813797a5>] __pm_runtime_resume+0x70/0x8d > [ 240.492693] [<ffffffff813d34d5>] usb_autoresume_device+0x20/0x3f > [ 240.492698] [<ffffffff813d90ec>] usbdev_open+0xc0/0x237 > [ 240.492705] [<ffffffff81159d35>] chrdev_open+0x130/0x15b > [ 240.492709] [<ffffffff81159c05>] ? cdev_put+0x25/0x25 > [ 240.492714] [<ffffffff81154c3b>] do_dentry_open+0x182/0x227 > [ 240.492718] [<ffffffff81154d15>] finish_open+0x35/0x41 > [ 240.492722] [<ffffffff81161e99>] do_last+0x86d/0xa0c > [ 240.492727] [<ffffffff8115fa44>] ? inode_permission+0x45/0x47 > [ 240.492732] [<ffffffff811620fe>] path_openat+0xc6/0x32a > [ 240.492736] [<ffffffff8116268c>] do_filp_open+0x38/0x86 > [ 240.492742] [<ffffffff8116c30e>] ? spin_unlock+0x9/0xb > [ 240.492747] [<ffffffff8116cf4d>] ? __alloc_fd+0xf3/0x104 > [ 240.492751] [<ffffffff811559e0>] do_sys_open+0x6c/0xf9 > [ 240.492755] [<ffffffff81155a8e>] sys_open+0x21/0x23 > [ 240.492761] [<ffffffff814fdd82>] system_call_fastpath+0x16/0x1b -- 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
