From owner-freebsd-hackers@FreeBSD.ORG Tue Aug 4 16:37:22 2009 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1AE931065677 for ; Tue, 4 Aug 2009 16:37:22 +0000 (UTC) (envelope-from julian@elischer.org) Received: from outN.internet-mail-service.net (outn.internet-mail-service.net [216.240.47.237]) by mx1.freebsd.org (Postfix) with ESMTP id F090D8FC15 for ; Tue, 4 Aug 2009 16:37:21 +0000 (UTC) (envelope-from julian@elischer.org) Received: from idiom.com (mx0.idiom.com [216.240.32.160]) by out.internet-mail-service.net (Postfix) with ESMTP id 9B43DA300F; Tue, 4 Aug 2009 09:37:21 -0700 (PDT) X-Client-Authorized: MaGic Cook1e X-Client-Authorized: MaGic Cook1e X-Client-Authorized: MaGic Cook1e Received: from julian-mac.elischer.org (home.elischer.org [216.240.48.38]) by idiom.com (Postfix) with ESMTP id 354282D601A; Tue, 4 Aug 2009 09:37:21 -0700 (PDT) Message-ID: <4A7863D5.3000701@elischer.org> Date: Tue, 04 Aug 2009 09:37:41 -0700 From: Julian Elischer User-Agent: Thunderbird 2.0.0.22 (Macintosh/20090605) MIME-Version: 1.0 To: Maslan References: <319cceca0908030119i3432a495ya60aa431dab0e1b1@mail.gmail.com> <86k51k4kvl.fsf@ds4.des.no> <86fxc84ksj.fsf@ds4.des.no> <200908040138.14743.max@love2party.net> <319cceca0908040227hf9a0f92jbf05b11e9f974994@mail.gmail.com> <20090804093036.GN1292@hoeg.nl> <319cceca0908040239k2accd7fen402db4c91687a267@mail.gmail.com> <20090804094142.GO1292@hoeg.nl> <319cceca0908040252w105d3dfdge9dec3c8b6d28607@mail.gmail.com> In-Reply-To: <319cceca0908040252w105d3dfdge9dec3c8b6d28607@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Ed Schouten , FreeBSD Hackers Subject: Re: sosend() and mbuf X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Aug 2009 16:37:22 -0000 Maslan wrote: >> Is it possible to call kern_open() from within a kernel thread anyway? > I think yes, It worked on the parent thread before creating a new kthread. > See OpenKETA source, its using the same approach. I wouldn't count on that.. >> kern_open() depends on a file descriptor table, right? > Yes, it returns a fd in the curthread->td_retval[0], which i should > use within the same thread to deal with this file. and kernel threads have not file descriptors (I think) so.... it would crash... isn't that what you are seeing? > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org"