Date: Thu, 20 Oct 2005 20:20:34 +0000 From: "Wojciech A. Koszek" <dunstan@freebsd.czest.pl> To: freebsd-net@freebsd.org Subject: Dependency between interfaces Message-ID: <20051020202034.GA4556@freebsd.czest.pl>
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Hello, Is EVENTHANDLER(9) proper way of notification for standalone driver about network interface attach/detach operations? I've met simple problem in ef(4), which causes machine freeze in following situation: load NIC driver -> load if_ef -> unload NIC driver -> some activity with interface. Althought driver of network interface no longer exists, if_ef does not know about it and continues it's operation. I've seen similar situation for example in ng_fec(4): piece of code needs to call some cleanup routines in order to keep pointers in valid state. I think this situation is almost the same like this current in if_bridge(4). Just repeat situation described above for ef(4), but with if_bridge(4). Regards, -- * Wojciech A. Koszek && dunstan@FreeBSD.czest.pl
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