Hi,

While fiddling with 2.6.8-rc3 with a SA1111-based host, I came across
the following error message after unplugging and replugging a USB
pen drive (the swissbit thing that was at KernelSummit):

usb 1-1: control timeout on ep0out

I then found I couldn't remove ohci_hcd.  khubd had decided to get
stuck...  Here's the calltrace.  Any ideas?

khubd         D C03A630C     0   288      1                 248 (L-TLB)
[<c03a5f00>] (schedule+0x0/0x464) from [<c03a6410>] (wait_for_completion+0xac/0x10c)
[<c03a6364>] (wait_for_completion+0x0/0x10c) from [<bf01c9e8>] 
(usb_start_wait_urb+0xa0/0xe0 [usbcore])
[<bf01c948>] (usb_start_wait_urb+0x0/0xe0 [usbcore]) from [<bf01ca94>] 
(usb_internal_control_msg+0x6c/0x84 [usbcore])
[<bf01ca28>] (usb_internal_control_msg+0x0/0x84 [usbcore]) from [<bf01cb60>] 
(usb_control_msg+0xb4/0xcc [usbcore])
[<bf01caac>] (usb_control_msg+0x0/0xcc [usbcore]) from [<bf0191fc>] 
(hub_set_address+0x68/0x88 [usbcore])
[<bf019194>] (hub_set_address+0x0/0x88 [usbcore]) from [<bf0193e8>] 
(hub_port_init+0x1cc/0x38c [usbcore])
[<bf01921c>] (hub_port_init+0x0/0x38c [usbcore]) from [<bf019938>] 
(hub_port_connect_change+0x1cc/0x448 [usbcore])
[<bf01976c>] (hub_port_connect_change+0x0/0x448 [usbcore]) from [<bf019f08>] 
(hub_events+0x354/0x4a4 [usbcore])
[<bf019bb4>] (hub_events+0x0/0x4a4 [usbcore]) from [<bf01a080>] (hub_thread+0x28/0x130 
[usbcore])
[<bf01a058>] (hub_thread+0x0/0x130 [usbcore]) from [<c023b7a4>] (do_exit+0x0/0x3ac)

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 PCMCIA      - http://pcmcia.arm.linux.org.uk/
                 2.6 Serial core


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