From owner-freebsd-stable@FreeBSD.ORG Wed Jan 7 00:27:36 2015 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 5B5C8C24; Wed, 7 Jan 2015 00:27:36 +0000 (UTC) Received: from mail-we0-x22d.google.com (mail-we0-x22d.google.com [IPv6:2a00:1450:400c:c03::22d]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id E161B649D3; Wed, 7 Jan 2015 00:27:35 +0000 (UTC) Received: by mail-we0-f173.google.com with SMTP id q58so276295wes.4; Tue, 06 Jan 2015 16:27:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=xbKHNywt14x3eGaOpkxOpsgq8ga81qXNxgaYgIb219g=; b=x/kUIzaTPSoaEdLGURBV5sR6SU/rfmLHVlNeUUxrfk8af+b+E77hbzv7HUzynrCBHK M0TsJLRBLzdx2aqDSvdBcLXTX48T/mpDys+eGeN7LeGmoCl71lIrvY9sHjLkLMNG9Dg+ Afvr+TUKGN6/PTm4dAh4PW4ugGlhtHuvaSi5iMjuETAo7Um6BsFQW3KkyN0KBjuF13mm IHht0BV+hhwgojB6ySIgBuv0FcxbipqRdxHiTmuexhAwioVbmYQSCTn7/PHN3zQm5oUX kW7F4n6YIZXb5T9kmH2joNACMsiv2IcddbYeS3QIzSFmFB1UKioI6lqSZedPfwk8+i2Z qXYA== MIME-Version: 1.0 X-Received: by 10.180.20.6 with SMTP id j6mr1501030wie.59.1420590454304; Tue, 06 Jan 2015 16:27:34 -0800 (PST) Sender: adrian.chadd@gmail.com Received: by 10.216.41.136 with HTTP; Tue, 6 Jan 2015 16:27:34 -0800 (PST) In-Reply-To: <20150106.195509.71132582.sthaug@nethelp.no> References: <20150105.232339.74735411.sthaug@nethelp.no> <20150106.195509.71132582.sthaug@nethelp.no> Date: Tue, 6 Jan 2015 16:27:34 -0800 X-Google-Sender-Auth: gCFQURFjptG-RRwvHU60GXZQr2c Message-ID: Subject: Re: 10.1-STABLE/i386 GENERIC + VIMAGE: Panic when going multiuser From: Adrian Chadd To: sthaug@nethelp.no Content-Type: text/plain; charset=UTF-8 Cc: Craig Rodrigues , FreeBSD Stable Mailing List X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Jan 2015 00:27:36 -0000 On 6 January 2015 at 10:55, wrote: >> > Unfortunately, there is *no* IPv6 config on the box (aside from what >> > might be done by default). rc.conf: >> > >> > hostname="verdi.nethelp.no" >> > keymap="norwegian.iso.kbd" >> > ifconfig_bge1="inet 10.0.0.2 netmask 255.255.255.252" >> > sshd_enable="YES" >> > dumpdev="AUTO" >> > ddb_enable="YES" >> > background_fsck="NO" >> > >> >> >> That config is minimal, so I don't see anything offhand which would trigger >> IPv6. >> But there could be something else running on the system that triggers it. >> >> Do you have *any* kernel modules which are installed on the system and not >> built as part of the buildworld/buildkernel process? For example, kernel >> modules >> installed via a port? > > No modules. > >> Lastly, since your crash is triggered by "sysctl -a" with VIMAGE and DDB >> added to a GENERIC kernel config in 10.1, >> can you see the last sysctl which is printed out before the panic occurs? > > I have done a bit more testing with sysctl. There are two specific > sysctls which trigger the panic: > > net.inet6.ip6.temppltime > net.inet6.ip6.tempvltime > > All the other sysctls are fine, no panic generated. > > What can I do to help debug this further? The box where this happens > isn't doing anything else useful at the moment, so can be crashed at > will :-) Crash it, get the coredump into kgdb and pull out more information about the variables involved. The kernel coredump output above is useful, but it'd be much more useful to debug with a corefile and kgdb. :) -adrian > > Steinar Haug, Nethelp consulting, sthaug@nethelp.no > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"