> Ok, I just retested it with this addition:
> #define DBG_PR_URB(U) dbg("kill_urb @%d addr %p, dev %p
> (%.16s)",__LINE__,U,(U)->dev,(U)->dev?(U)->dev->devpath:"null")
> #define usb_kill_urb(U) do { DBG_PR_URB(U); usb_kill_urb(U); } while(0)
> #define usb_free_urb(U) do { DBG_PR_URB(U); usb_free_urb(U); } while(0)
>
> I placed results to http://luxik.cdi.cz/~devik/tmp/acm/feb11_test/.
> File usboops.2 is with uhci while usboops.3 is the same test but using
> ehci driver with external USB hub (TT emulation). The oops is here too.
> A also uploaded my copy of cdc-acm.c so that you can easily interpret
> __LILE__ info ...
Please add a printk for the value of "acm" which is freed in acm_disconnect.
Regards
Oliver
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