From owner-freebsd-current@FreeBSD.ORG Sun Jul 8 03:14:22 2012 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 82651106566B for ; Sun, 8 Jul 2012 03:14:22 +0000 (UTC) (envelope-from steve@mouf.net) Received: from mouf.net (mouf.net [IPv6:2607:fc50:0:4400:216:3eff:fe69:33b2]) by mx1.freebsd.org (Postfix) with ESMTP id 21C8A8FC14 for ; Sun, 8 Jul 2012 03:14:22 +0000 (UTC) Received: from meatwad.mouf.net (cpe-024-162-230-236.nc.res.rr.com [24.162.230.236]) (authenticated bits=0) by mouf.net (8.14.5/8.14.5) with ESMTP id q683EKp0066952 (version=TLSv1/SSLv3 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NOT) for ; Sat, 7 Jul 2012 23:14:21 -0400 (EDT) (envelope-from steve@mouf.net) Message-ID: <4FF8FB0C.4050706@mouf.net> Date: Sat, 07 Jul 2012 23:14:20 -0400 From: Steve Wills User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:12.0) Gecko/20120604 Thunderbird/12.0.1 MIME-Version: 1.0 To: freebsd-current@freebsd.org References: <7F5E65B1-24AF-4942-A273-093EBAE94B7D@FreeBSD.org> <168031EF-1CBD-4B14-A99E-D5C90B01111C@FreeBSD.org> <4FF62A6C.7090408@FreeBSD.org> In-Reply-To: <4FF62A6C.7090408@FreeBSD.org> X-Enigmail-Version: 1.4.2 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.7 (mouf.net [204.109.58.86]); Sat, 07 Jul 2012 23:14:21 -0400 (EDT) X-Virus-Scanned: clamav-milter 0.97.5 at mouf.net X-Virus-Status: Clean Subject: Re: panic after starting X with r238120 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 08 Jul 2012 03:14:22 -0000 Following up to myself, with some things I should have mentioned before: On 07/05/12 19:59, Steve Wills wrote: > On 07/05/12 03:00, Alan Cox wrote: >> On Wed, Jul 4, 2012 at 4:57 PM, Steve Wills wrote: >> >>> Setting kern.ipc.shm_use_phys back to 0 (the default) fixed it. I had set >>> it to 1 for some reason that I can't recall. >>> >>> >> That shouldn't cause a crash in pmap_enter(). What is line 3587 of pmap.c >> in your sources? > > 3587 if ((newpte & PG_RW) == 0) > >> You mentioned DRM. Are you using the new Intel graphics >> driver? >> > > No, I'm using ATI Radeon. > For what it's worth, I discovered that twm and xterm don't trigger the issue, but konsole and other kde things do, which is what led me to discover that setting kern.ipc.shm_use_phys back to default fixed it. This wasn't the case before, I think the last time I updated was about a month ago, May 6. Also, I have these other shared memory related settings in sysctl.conf: kern.ipc.shmmax=67108864 kern.ipc.shmall=32768 kern.ipc.shm_allow_removed=1 I'm wondering if this is an indication that I have/had some bad settings and they finally bit me, or if this is an indication of a bug. Thanks, Steve