From owner-freebsd-stable@FreeBSD.ORG Tue Oct 1 11:23:14 2013 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 39AB8E83 for ; Tue, 1 Oct 2013 11:23:14 +0000 (UTC) (envelope-from john.marshall@riverwillow.com.au) Received: from mail1.riverwillow.net.au (mail1.riverwillow.net.au [IPv6:2001:8000:1000:1801::36]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 8E4B121C2 for ; Tue, 1 Oct 2013 11:23:13 +0000 (UTC) Received: from rwpc15.gfn.riverwillow.net.au (rwpc15.gfn.riverwillow.net.au [IPv6:2001:8000:1000:18e1:20c:76ff:fe0a:2117]) (authenticated bits=56) by mail1.riverwillow.net.au (8.14.7/8.14.7) with ESMTP id r91BN6tl014376 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Tue, 1 Oct 2013 21:23:07 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=riverwillow.com.au; s=m1001; t=1380626587; bh=7IuzH6Zr0GhDOZAxQdBMrVRgzCbio/nczhGtFYbP08U=; h=Date:From:To:Subject:References:In-Reply-To; b=xTrIco6o172Ctdn5BXoGM4+miSPOVh03PNtUBoexQmTWSXquvlfilz9JB3xzv2uhh wDHmgpe/+iPzZBrMZp+X5tyPVqPxK3xm+lOsbEW9J6jb96YztqNQGoB82RvTsw1r9r n4hyZG65WtiOynAIeio0JE9pp6c7sIv+sj8sLpYk= Date: Tue, 1 Oct 2013 21:23:06 +1000 From: John Marshall To: freebsd-stable@freebsd.org Subject: Re: 9.2-RC4 amd64 panic: vm_page_unwire Message-ID: <20131001112305.GA8408@rwpc15.gfn.riverwillow.net.au> References: <20130927000728.GB19167@rwpc15.gfn.riverwillow.net.au> <20130927081221.GK41229@kib.kiev.ua> <20130928023046.GA1428@rwpc15.gfn.riverwillow.net.au> <20130929212104.GB1370@rwpc15.gfn.riverwillow.net.au> <20130930095507.GD2813@rwpc15.gfn.riverwillow.net.au> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="VbJkn9YxBvnuCH5J" Content-Disposition: inline In-Reply-To: <20130930095507.GD2813@rwpc15.gfn.riverwillow.net.au> OpenPGP: id=A29A84A2; url=http://pki.riverwillow.com.au/pgp/johnmarshall.asc User-Agent: Mutt/1.5.21 (2010-09-15) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Oct 2013 11:23:14 -0000 --VbJkn9YxBvnuCH5J Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, 30 Sep 2013, 19:55 +1000, John Marshall wrote: > Another data point: both systems on which I have seen this panic have > the ipmi driver compiled in. ipmi makes the BMC's watchdog timer > available to the system. So, I decided to revert my source tree to a clean releng/9.2 (9.2-RELEASE) and recompile without the ipmi driver (so there goes the watchdog timer too), and see how the system behaved. I was able to stop and start ntpd without mishap. If ntpd was not running, the system would reboot cleanly. If ntpd was running, the system would panic during shutdown - vm_page_unwire - while stopping ntpd. I decided to switch my source tree back to releng/9.1 (9.1-RELEASE-p7), rebuild, and test. Booted into the 9.1 kernel in single-user, installed the 9.1 world, make delete-old, decided to skip mergemaster (why??!!); reboot; and it wouldn't :-/ menuset-loadinitial not found Consoles: internal video/keyboard BIOS drive C: is disk0 BIOS drive D: is disk1 BIOS 565kB/3136000kB available memory FreeBSD/x86 bootstrap loader, Revision 1.1 (root@ozsrv04.riverwillow.net.au, Tue Oct 1 18:04:14 AEST 2013) Can't work out which disk we are booting from. Guessed BIOS device 0xffffffff not found by probes, defaulting to disk0: panic: free: guard1 fail @ 0xbf492150 from /kits/src/sys/boot/i386/loader/ ../../common/module.c:1004 That should keep me entertained until the morning (this is a remote system). --=20 John Marshall --VbJkn9YxBvnuCH5J Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.21 (FreeBSD) iEYEARECAAYFAlJKsJkACgkQw/tAaKKahKIDWACgtfm0As41MVGx2RzXdCPZdFw4 pI8AnRHooJ5A0p97cUyPFSl/qLnI/la4 =6uz7 -----END PGP SIGNATURE----- --VbJkn9YxBvnuCH5J--