On Tue, Jan 31, 2012 at 5:40 PM, Ross Ryles <rossryles@xxxxxxxxxxxxxx> wrote: > On Tue, Jan 31, 2012 at 3:58 PM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: >>> The one thing I can think is common between everything that hangs is >>> they are using a "tty" of some sort. >> >> Yeah, that's probably the reason. > > Could it be that "the big tty mutex" is getting held forever by something? Yes, I think you cracked it. The big tty mutex is taken in tty_release and it effectively prevents any logins while close is running. In your particular case it may faulty hardware which is causing close to never return... Johan -- 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
