On Sun, Sep 4, 2011 at 9:49 PM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > >> Where does this exit signal come from? >> Does USB interrupt handler will send kill signal to all processes >> accessing it when it's unplugged(by hand)? > > The USB stack does not send any signals at all unless a process > specifically asks for them. How to ask? I have not checked, but think umount code path will not send signal to process. Curiously, where does the exit signal come from? Dave, Did you press "Ctrl + C" on cat? Lin Ming -- 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