On Thu, 17 Nov 2005, Jan Kiszka wrote:

> You mean something like this:
> 
> khubd         D 003D446F     0  1749      6          5752   692 (L-TLB)
> ccfade98 00000000 bec52600 003d446f ccefd688 ccefd560 bec52600 003d446f
>        00000000 00000000 c0316a60 ccfadea8 00f94b77 cdb57800 cdb578e0
> c0261e67
>        ccfadea8 00f94b77 c03383d0 c03383d0 00f94b77 4b87ad6e c011e16d
> ccefd560
> Call Trace:
>  [schedule_timeout+130/163] schedule_timeout+0x82/0xa3
>  [process_timeout+0/9] process_timeout+0x0/0x9
>  [pg0+241756895/1070240768] ehci_endpoint_disable+0xa6/0x140 [ehci_hcd]
>  [pg0+242750144/1070240768] usb_disable_device+0x63/0x157 [usbcore]
>  [pg0+242730389/1070240768] usb_disconnect+0xc2/0x161 [usbcore]
>  [pg0+242734186/1070240768] hub_port_connect_change+0xc3/0x3f1 [usbcore]
>  [pg0+242735944/1070240768] hub_events+0x3b0/0x4bf [usbcore]
>  [pg0+242736215/1070240768] hub_thread+0x0/0xdb [usbcore]
>  [pg0+242736224/1070240768] hub_thread+0x9/0xdb [usbcore]
>  [autoremove_wake_function+0/58] autoremove_wake_function+0x0/0x3a
>  [kthread+105/150] kthread+0x69/0x96
>  [kthread+0/150] kthread+0x0/0x96
>  [kernel_thread_helper+5/11] kernel_thread_helper+0x5/0xb

Yep, that's exactly what I mean.  It shows beyond all doubt that khubd is 
caught in a loop in ehci_endpoint_disable.  Now it's up to David...

Alan Stern



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