From owner-freebsd-current Wed Apr 26 10:16:10 2000 Delivered-To: freebsd-current@freebsd.org Received: from relay01.chello.nl (smtp.chello.nl [212.83.68.144]) by hub.freebsd.org (Postfix) with ESMTP id 3A9C037B895 for ; Wed, 26 Apr 2000 10:16:04 -0700 (PDT) (envelope-from wkb@chello.nl) Received: from chello.nl ([213.46.78.184]) by relay01.chello.nl (InterMail vK.4.02.00.00 201-232-116 license 99c8f334c649856e3f2cdadc4054e412) with ESMTP id <20000426171610.DMJA10828.relay01@chello.nl>; Wed, 26 Apr 2000 19:16:10 +0200 Received: (from wkb@localhost) by chello.nl (8.9.3/8.9.3) id TAA01241; Wed, 26 Apr 2000 19:15:59 +0200 (CEST) (envelope-from wkb) Date: Wed, 26 Apr 2000 19:15:59 +0200 From: Wilko Bulte To: "Peter Edwards (local)" Cc: Maxim Sobolev , current@FreeBSD.ORG Subject: Re: vn.ko load/unload/mount = panic Message-ID: <20000426191559.B1021@yedi.wbnet> Reply-To: wc.bulte@chello.nl References: <390702C6.BCC0CA88@altavista.net> <39070A7A.A2766B32@openet-telecom.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0.1i In-Reply-To: <39070A7A.A2766B32@openet-telecom.com>; from peter.edwards@openet-telecom.com on Wed, Apr 26, 2000 at 04:25:46PM +0100 X-OS: FreeBSD 3.4-STABLE X-PGP: finger wilko@freebsd.org Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Wed, Apr 26, 2000 at 04:25:46PM +0100, Peter Edwards (local) wrote: How about send-pr ing this stuff? Wilko > Hi, > After a (very) quick look at the source it looks like there's a missing > cdevsw_remove() missing from the MOD_UNLOAD/MOD_SHUTDOWN event handling > I haven't time to test it, but try this: > > *** vn.c.old Wed Apr 26 16:23:03 2000 > --- vn.c Wed Apr 26 16:24:06 2000 > *************** > *** 762,767 **** > --- 762,768 ---- > case MOD_UNLOAD: > /* fall through */ > case MOD_SHUTDOWN: > + cdevsw_remove(&vn_cdevsw); > for (;;) { > vn = SLIST_FIRST(&vn_list); > if (!vn) > > > Maxim Sobolev wrote: > > > > Hi, > > > > I've already submitted this crash report earlier but it seems that developers > > in -current list are too busy discussing whether Matt allowed to commit his SMP > > work into 4.0 to pay attention to "ordinary" panic reports :-(. Following is > > slightly simplified course of actions which is known to produce kernel panic on > > both 4.0 and 5.0: > > > > root@notebook# kldstat > > Id Refs Address Size Name > > 1 2 0xc0100000 1c2f48 kernel > > 2 1 0xc02c3000 30c8 splash_bmp.ko > > root@notebook# mount /dev/vn0c /mnt > > mount: Device not configured > > root@notebook# kldload /modules/vn.ko > > root@notebook# kldstat > > Id Refs Address Size Name > > 1 3 0xc0100000 1c2f48 kernel > > 2 1 0xc02c3000 30c8 splash_bmp.ko > > 3 1 0xc0823000 3000 vn.ko > > root@notebook# kldunload -i 3 > > root@notebook# mount /dev/vn0c /mnt > > [BINGO] > > Fatal trap 12: page fault while in kernel mode > > [...] > > > > -Maxim -- Wilko Bulte Powered by FreeBSD http://www.freebsd.org http://www.tcja.nl To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message