From owner-freebsd-current@FreeBSD.ORG Tue Jun 15 12:24:45 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 231B916A4CE for ; Tue, 15 Jun 2004 12:24:45 +0000 (GMT) Received: from mail.FreeBSD.org.cn (dns3.freebsd.org.cn [61.129.66.75]) by mx1.FreeBSD.org (Postfix) with ESMTP id 24BD243D1D for ; Tue, 15 Jun 2004 12:24:43 +0000 (GMT) (envelope-from delphij@frontfree.net) Received: (qmail 8606 invoked by uid 0); 15 Jun 2004 12:23:18 -0000 Received: from unknown (HELO beastie.frontfree.net) (218.107.145.7) by mail.FreeBSD.org.cn with AES256-SHA encrypted SMTP; 15 Jun 2004 12:23:18 -0000 Received: from localhost (localhost.frontfree.net [127.0.0.1]) by beastie.frontfree.net (Postfix) with ESMTP id D9870121A3; Tue, 15 Jun 2004 19:55:51 +0800 (CST) Received: from beastie.frontfree.net ([127.0.0.1]) by localhost (beastie.frontfree.net [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 01196-09; Tue, 15 Jun 2004 19:55:50 +0800 (CST) Received: by beastie.frontfree.net (Postfix, from userid 1001) id EEB70121A0; Tue, 15 Jun 2004 19:55:48 +0800 (CST) Date: Tue, 15 Jun 2004 19:55:48 +0800 From: Xin LI To: astesin@ukrtelecom.net Message-ID: <20040615115548.GA1250@frontfree.net> References: <1152675CA9EDD71187130002B3CE5ADA08A6F4F7@hoexc010.ukrtelecom.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="ibTvN161/egqYuK8" Content-Disposition: inline In-Reply-To: <1152675CA9EDD71187130002B3CE5ADA08A6F4F7@hoexc010.ukrtelecom.net> User-Agent: Mutt/1.4.2.1i X-GPG-key-ID/Fingerprint: 0xCAEEB8C0 / 43B8 B703 B8DD 0231 B333 DC28 39FB 93A0 CAEE B8C0 X-GPG-Public-Key: http://www.delphij.net/delphij.asc X-Operating-System: FreeBSD beastie.frontfree.net 5.2-delphij FreeBSD 5.2-delphij #66: Tue Jun 15 11:25:44 CST 2004 root@beastie.frontfree.net:/usr/obj/usr/src/sys/BEASTIE i386 X-URL: http://www.delphij.net X-By: delphij@beastie.frontfree.net X-Location: Beijing, China X-Virus-Scanned: by amavisd-new at frontfree.net cc: acpi@FreeBSD.org cc: current@FreeBSD.org Subject: Re: HA: [backtrace] kernel dump when shutting down X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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: Tue, 15 Jun 2004 12:24:45 -0000 --ibTvN161/egqYuK8 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Jun 15, 2004 at 12:22:34PM +0300, astesin@ukrtelecom.net wrote: > Hello Xin, >=20 > > I got a strange problem when having HTT enabled on a P4 2.8E=20 > > processor. When rebooting the system, after the disk sync and=20 > > the system is going to restart, it crashes and generates a=20 > > crashdump. Strangely, the panic message seems to be corrupted. >=20 > That's exactly what I'm seeing on P4 3.0E (yes, also `E') and Intel > S875WP1-E motherboard > ftp://download.intel.com/support/motherboards/server/s875wp1-e/tps.pdf , = but > it even doesn't do crashdump, just freeses. And not each time but maybe 3= -4 > of 5 reboots. BTW running `halt' instead of reboot worked. Sorry I didn't > had time this night to try a kernel with debugging. Ah... Yes, I'm using Intel motherboard too, however, with a different chipset. Are you sure that the system is actually frozen? In my case, nothing appeared in console, however, pressing Ctrl+C will reboot immediately, which is the behavior when system is dumping core. In addition, I have successfully obtained crashdump. The backtrace itself seemed to be meaningless. I thought there might be some locking problem within the shutdown code. I will do some experiments after my competitive examination for bachelor's degree tomorrow. > > The system used to crash before sync'ing disks. It seems that=20 > > Nate's recent commit has removed that crash. More information=20 > > available upon request. >=20 > Exactly. 5.2.1-R and -CURRENT of late May were also tested, they were > crashing before syncing discs, 20040614 -CURRENT crashes (freeses) after > syncing. >=20 > People say that on older P4 CPUs (Northwood core) that do not have this > problem, only on `E'-s (??? Strange enough). Exactly. The P4 box at my lab does work correctly. Let's check the developers' manual from Intel and we may find something useful :-) Cheers, --=20 Xin LI http://www.delphij.net/ See complete headers for GPG key and other information. --ibTvN161/egqYuK8 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFAzuPEOfuToMruuMARAvMUAKCLTzTZUY0CYr8NglinRXLz5upjewCfbRC9 l6DMj0Ewag/huAFnTbsl8DA= =MxtJ -----END PGP SIGNATURE----- --ibTvN161/egqYuK8--