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/.
Hello again. I just tested on my friend's notebook. He uses recent gentoo, stock
2.6.10 kernel and the same modem type.
When I did modprobe - pppd - killpppd - rmmod sequence then it triggered
BUG in slab and backtrace looks very familiar :)
See usboops.4 file in the same place (above).
Martin
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