On Thu, 15 Sep 2005, John Baldwin wrote: >>> This is a real LOR caused by the fact that in_addmulti() holds the >>> in_multi_mtx() lock across the call to if_addmulti() and if_addmulti() >>> will acquire Giant for non-MPsafe drivers around calls into their >>> ioctl routine. I think that to better expose these issues, the various >>> conditional-Giant macros need to include a witness_warn() to make sure >>> only sleepable locks and/or Giant are held when the lock macro is >>> invoked. >> >> The right strategy here may in fact be to eliminate Giant acquisition >> by network device drivers... > > I'm working on that. :) And it is much appreciated :-). Robert N M WatsonReceived on Thu Sep 15 2005 - 18:16:21 UTC
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