Alan Stern wrote, On 12/04/2007 04:17 PM: ... > Furthermore, in this case deadlock isn't really impossible -- it could > occur if there were a bug somewhere else in the kernel. So lockdep was > correct to warn that deadlock might occur.
Alan, if the scenario was like you described at the beginning, there was no deadlock possible, unless some errors in the notifier. These #1-#3 threads were only helpful to guess what lockdep could 'think', but I guess notifier doesn't use 2 rivaling threads for a wake, so, lockdep probably needed additional information. And you really can't consider any hypothetical kernel bugs here because then each lock is vulnerable. Regards, Jarek P. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
