Liu Bo <liub.liubo@xxxxxxxxx> writes: > I'm using mainline upstream 3.6.0-rc1 compiled based on Fedora-16. > > When I unplug my mobile usb card, I hit this: > > [ 247.017258] BUG: unable to handle kernel NULL pointer dereference at (null) > [ 247.017378] IP: [<ffffffffa03bf27f>] stop_read_write_urbs+0x3f/0x90 [usb_wwan] Thanks for reporting. This should be fixed by a1028f0 usb: usb_wwan: replace release and disconnect with a port_remove hook currently in the usb tree, and hopefully going into the next -rc Bjørn -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html