From owner-freebsd-stable@FreeBSD.ORG Mon Jun 26 14:30:49 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9BA5A16A408 for ; Mon, 26 Jun 2006 14:30:49 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from fw.zoral.com.ua (ll-227.216.82.212.sovam.net.ua [212.82.216.227]) by mx1.FreeBSD.org (Postfix) with ESMTP id 402B343E37 for ; Mon, 26 Jun 2006 14:30:45 +0000 (GMT) (envelope-from kostikbel@gmail.com) Received: from deviant.kiev.zoral.com.ua (root@deviant.kiev.zoral.com.ua [10.1.1.148]) by fw.zoral.com.ua (8.13.4/8.13.4) with ESMTP id k5QEUfO6064441 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 26 Jun 2006 17:30:41 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: from deviant.kiev.zoral.com.ua (kostik@localhost [127.0.0.1]) by deviant.kiev.zoral.com.ua (8.13.6/8.13.6) with ESMTP id k5QEUesq026935; Mon, 26 Jun 2006 17:30:40 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: (from kostik@localhost) by deviant.kiev.zoral.com.ua (8.13.6/8.13.6/Submit) id k5QEUdhp026568; Mon, 26 Jun 2006 17:30:39 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: deviant.kiev.zoral.com.ua: kostik set sender to kostikbel@gmail.com using -f Date: Mon, 26 Jun 2006 17:30:39 +0300 From: Kostik Belousov To: "Marc G. Fournier" Message-ID: <20060626143038.GK79678@deviant.kiev.zoral.com.ua> References: <20060624221556.O30039@woozle.rinet.ru> <20060624152525.D1114@ganymede.hub.org> <20060625164752.H52500@woozle.rinet.ru> <20060625105843.O1114@ganymede.hub.org> <20060625211510.D52500@woozle.rinet.ru> <20060625154247.N1114@ganymede.hub.org> <20060626014210.P1114@ganymede.hub.org> <20060626014601.E1114@ganymede.hub.org> <20060626045547.GI79678@deviant.kiev.zoral.com.ua> <20060626021616.W1114@ganymede.hub.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="8jNwmpfkpox/fiJK" Content-Disposition: inline In-Reply-To: <20060626021616.W1114@ganymede.hub.org> User-Agent: Mutt/1.4.2.1i X-Virus-Scanned: ClamAV version 0.88.2, clamav-milter version 0.88.2 on fw.zoral.com.ua X-Virus-Status: Clean X-Spam-Status: No, score=0.4 required=5.0 tests=ALL_TRUSTED, DNS_FROM_RFC_ABUSE,SPF_NEUTRAL autolearn=no version=3.1.3 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on fw.zoral.com.ua Cc: freebsd-stable@freebsd.org, Dmitry Morozovsky Subject: Re: vmstat 'b' (disk busy?) field keeps climbing ... X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 26 Jun 2006 14:30:49 -0000 --8jNwmpfkpox/fiJK Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jun 26, 2006 at 02:20:12AM -0300, Marc G. Fournier wrote: > On Mon, 26 Jun 2006, Kostik Belousov wrote: >=20 > >Yes, this looks like a deadlock. As I understand, that's on 6.1-STABLE ? >=20 > Yes, kernel sources, it seems, from May 25th, according to my /usr/src=20 > tree ... >=20 > >BTW, do you use snapshots ? >=20 > Not that I've explicitly enabled ... >=20 > >I think that without ddb access, diagnose and debug the problem would be= =20 > >quite hard. >=20 > Would it be a simple matter of: >=20 > CTL-ALT-ESC > panic >=20 > to get it to dump core? Or would more be involved? Would a core dump=20 > even work? Core dumps are somewhat unconvenient in this situation. Better, sending report to me, follow my advise in http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kernel= debug-deadlocks.html --8jNwmpfkpox/fiJK Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (FreeBSD) iD8DBQFEn++OC3+MBN1Mb4gRAtq+AJ9XZPaXt35TN/wDpH63Uy8T3z0y3QCgvHGM m9WnqonjRs0JUSkV1VNFl0A= =7Qr9 -----END PGP SIGNATURE----- --8jNwmpfkpox/fiJK--