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From: Gleb Smirnoff <glebius@FreeBSD.org>
Date: Tue, 27 Jul 2004 20:30:56 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org,
	cvs-all@FreeBSD.org
X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/sys/netgraph netgraph.h ng_base.c ng_socket.c
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glebius     2004-07-27 20:30:56 UTC

  FreeBSD src repository

  Modified files:
    sys/netgraph         netgraph.h ng_base.c ng_socket.c 
  Log:
  When making a peer of unknown type framework tries to load module
  using linker_load_module(). This works OK if NGM_MKPEER message came
  from userland and we have process associated with thread. But when
  NGM_MKPEER was queued because target node was busy, linker_load_module()
  is called from netisr thread leading to panic.
  To workaround that we do not load modules by framework, instead ng_socket
  loads module (if this is required) before sending NGM_MKPEER.
  However, the race condition between return from NgSendMsg() and actual
  creation of node still exist and needs to be solved.
  
  PR:             kern/62789
  Approved by:    julian
  
  Revision  Changes    Path
  1.43      +1 -0      src/sys/netgraph/netgraph.h
  1.84      +5 -19     src/sys/netgraph/ng_base.c
  1.52      +34 -0     src/sys/netgraph/ng_socket.c