Messages in this thread | | | Date | Sun, 18 Mar 2007 22:33:45 +0200 | From | "Michael S. Tsirkin" <> | Subject | Re: dst_ifdown breaks infiniband? |
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Quoting Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>: Subject: Re: dst_ifdown breaks infiniband? > > Can dst->neighbour be changed to point to NULL instead, and the neighbour > > released? > > It should be cleared and we should be sure it will not be destroyed > before quiescent state. > > Seems, this is the only correct solution, but to do this we have > to audit all the places where dst->neighbour is dereferenced for > RCU safety. > > Actually, it is very good you caught this eventually, the bug was > so _disgusting_ that it was "forgotten" all the time, waiting for > someone who will point out that the king is naked. :-)
Actually that might not be too bad: $grep -rIi 'dst->neighbour' net/ | wc -l 36
I'll try to do it.
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