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Description of problem:
kernel oopses in usb_disconnect when syncing with my palm tungsten via
usb (using the visor module). 
A way to reproduce the oops reliably is to initiate a sync and then
cancel the connection from the palm. In normal operation the sync
often succeeds but produces an oops occasionally, say 1 in 4 times.

I've observed this both on my laptop using the 2.4.22-1.2115.nptl
kernel, as well as my dual processor desktop machine under
2.4.22-1.2129.nptlsmp. I'll add an attachment with relevant dmesg output.



Version-Release number of selected component (if applicable):
kernel-2.4.22-1.2129.nptl

How reproducible:
Sometimes

Steps to Reproduce:
1. sync palm using pilot-xfer, jpilot, or gnome-pilot-applet
2. cancel the connection on the pda
3.
    

Actual Results:  program doing the sync, e.g. jpilot, hangs in disk
wait. dmesg report kernel oops. usb moules cannot be unloaded.

Expected Results:  no kernel oops. sync should be canceled.

Additional info: