From owner-freebsd-hackers@FreeBSD.ORG Tue Aug 4 16:46:37 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 E8B00106568A for ; Tue, 4 Aug 2009 16:46:37 +0000 (UTC) (envelope-from julian@elischer.org) Received: from outX.internet-mail-service.net (outx.internet-mail-service.net [216.240.47.247]) by mx1.freebsd.org (Postfix) with ESMTP id CBC398FC18 for ; Tue, 4 Aug 2009 16:46:37 +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 E26669E446; Tue, 4 Aug 2009 09:33:51 -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 23DE02D600F; Tue, 4 Aug 2009 09:33:51 -0700 (PDT) Message-ID: <4A786302.3090709@elischer.org> Date: Tue, 04 Aug 2009 09:34:10 -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> In-Reply-To: <319cceca0908040239k2accd7fen402db4c91687a267@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 16:46:38 -0000 Maslan wrote: > I'm getting crazy, > > I don't know why kern_open() works in the module's main thread, but > when I use it in another thread created by kthread_create() it crashes > the kernel ??? > kernel threads may not have a file descriptor table. so kern_open may not work on kernel processes.. (just speculating) > > On Tue, Aug 4, 2009 at 9:30 AM, Ed Schouten wrote: >> Hi, >> >> * Maslan wrote: >>> man kthread says: >>> The kthread_create() function is used to create a kernel thread. The new >>> thread shares its address space with process 0, the swapper process, and >> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ >>> runs in kernel mode only. >>> >>> However, when i checked the pid & tid of the new created thread it was >>> not the same as the parent nor as the proc0 & thread0 >> I am not sure, but sharing another process's address space doesn't have >> to imply it shares the same pid, right? >> >> -- >> Ed Schouten >> WWW: http://80386.nl/ >> > _______________________________________________ > 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"