From owner-p4-projects@FreeBSD.ORG Thu Aug 6 15:08:53 2009 Return-Path: Delivered-To: p4-projects@freebsd.org Received: by hub.freebsd.org (Postfix, from userid 32767) id 7244C106566B; Thu, 6 Aug 2009 15:08:53 +0000 (UTC) Delivered-To: perforce@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 252B1106566C; Thu, 6 Aug 2009 15:08:53 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from cyrus.watson.org (cyrus.watson.org [65.122.17.42]) by mx1.freebsd.org (Postfix) with ESMTP id EB8178FC17; Thu, 6 Aug 2009 15:08:52 +0000 (UTC) Received: from bigwig.baldwin.cx (66.111.2.69.static.nyinternet.net [66.111.2.69]) by cyrus.watson.org (Postfix) with ESMTPSA id 8870746B03; Thu, 6 Aug 2009 11:08:52 -0400 (EDT) Received: from jhbbsd.hudson-trading.com (unknown [209.249.190.8]) by bigwig.baldwin.cx (Postfix) with ESMTPA id B38238A0A8; Thu, 6 Aug 2009 11:08:51 -0400 (EDT) From: John Baldwin To: Marko Zec Date: Thu, 6 Aug 2009 11:08:42 -0400 User-Agent: KMail/1.9.7 References: <200908061404.n76E4IIF048503@repoman.freebsd.org> In-Reply-To: <200908061404.n76E4IIF048503@repoman.freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200908061108.42372.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.0.1 (bigwig.baldwin.cx); Thu, 06 Aug 2009 11:08:51 -0400 (EDT) X-Virus-Scanned: clamav-milter 0.95.1 at bigwig.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-2.5 required=4.2 tests=AWL,BAYES_00,RDNS_NONE autolearn=no version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on bigwig.baldwin.cx Cc: Perforce Change Reviews , Julian Elischer Subject: Re: PERFORCE change 167065 for review X-BeenThere: p4-projects@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: p4 projects tree changes List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 06 Aug 2009 15:08:54 -0000 On Thursday 06 August 2009 10:04:18 am Marko Zec wrote: > http://perforce.freebsd.org/chv.cgi?CH=167065 > > Change 167065 by zec@zec_tpx32 on 2009/08/06 14:03:58 > > Merge Julian's updates to V_ instructions document. > Submitted by: julian > > Affected files ... > > .. //depot/projects/vimage/porting_to_vimage.txt#10 edit > > Differences ... > > ==== //depot/projects/vimage/porting_to_vimage.txt#10 (text+ko) ==== > > -#endif /* !_FOO_VFOO_H_ */ > -========================================================= > +On BOOT, the order of evaluation will be: > + In a NON-VIMAGE kernel where the module is compiled: > + MODEVENT, SYSINIT and VNET_SYSINIT both runm with order defined by their > + order declarations. {good foot shooting aterial if you get it wrong!} > > + In a VIMAGE kernel where the module is compiled: > + MODEVNET, SYSINIT and VNET_SYSINIT both runm with order defined by their > + order declarations. AND in addition, the VNET_SYSINIT being > + repeated once for every new jail/vnet. > > +On loading a vnet enabled kernel module after boot: > + MODEVENT("event = load"); > + SYSINIT() > + VNET_SYSINIT() for every existing jail > + AND in addition, VNET_SYSINIT being called for each new jail created. > > +On unloading of module: > + MODEVENT("event = quiesce") > + MODEVENT("event = unload") > + VNET_SYSUNINIT called for every jail/vnet > + SYSUNINIT > > +On system shutdown: > + effectively the same as unload > + {with exception of modevent?} On system shutdown MOD_SHUTDOWN is the only MODEVENT handler invoked. > +NOTICE that while the order of the SYSINIT and VNET_SYSINIT is reversed from > +that of SYSUNINIT and VNET_SYSUNINIT, MODEVENTS do not follow > +this rule and thus it is dangerous to initialise and uninitialise > +things which are order dependent using MODEVENTs. This is no longer true. MOD_QUIESCE and MOD_UNLOAD events now run in the reverse of the order that MOD_LOAD is invoked for a given kld during kldunload. This is true in both 7 and 8 now for several months. -- John Baldwin