On Thu, 09 Feb 2017 12:36:44 +0100, Martin Pieuchot wrote: > dtucker@ reported an interesting recursion [0]. His trace shows that > a thread executing unp_detach() MUST NOT be holding the NET_LOCK(). > > So here's a new version of my SOCKET_LOCK() diff that does exactly > that. That means sofree(9) won't grab the NET_LOCK() for unix sockets > which makes uipc_usrreq() completely NET_LOCK() free.
The NET_ASSERT_UNLOCKED() in the PRU_BIND case in uipc_usrreq() appears to be superfluous since you've added an assert before the switch() too. - todd
