From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 6 Jan 2003 23:00:27 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 6 Jan 2003 23:00:27 -0500 Received: from pimout3-ext.prodigy.net ([207.115.63.102]:5544 "EHLO pimout3-ext.prodigy.net") by vger.kernel.org with ESMTP id ; Mon, 6 Jan 2003 23:00:25 -0500 Date: Mon, 6 Jan 2003 20:02:30 -0800 From: Joshua Kwan To: Adam Voigt Cc: linux-kernel@vger.kernel.org Subject: Re: High FS Activity Crash Message-Id: <20030106200230.18ac9987.joshk@mspencer.net> In-Reply-To: <1041861941.13245.26.camel@beowulf.cryptocomm.com> References: <1041860708.13245.7.camel@beowulf.cryptocomm.com> <1041861020.13159.11.camel@beowulf.cryptocomm.com> <1041861227.13245.14.camel@beowulf.cryptocomm.com> <1041861823.13159.21.camel@beowulf.cryptocomm.com> <1041861941.13245.26.camel@beowulf.cryptocomm.com> X-Mailer: Sylpheed version 0.8.8claws52 (GTK+ 1.2.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pgp-signature"; micalg="pgp-sha1"; boundary="=.Tixv3ruV4SDLUO" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --=.Tixv3ruV4SDLUO Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit If the disk is churning and churning, that could be why. Upgrade to a kernel that has a low latency elevator that makes sure disk thrashing doesn't kill system performance. I use 2.4.20-ck2 on my server :) Regards Josh Rabid cheeseburgers forced Adam Voigt to write this on 06 Jan 2003 09:05:40-0500: > Ok, on my fileserver I'm running Redhat 7.2 with Redhat kernel > 2.4.7-10 and when I have a large number of people downloading from me > at one time, Samba, ProFTPD, Apache, and SSH all stop responding, and > I get the following in my log, the only thing special I could think > about my setup is I have 3 NIC's bonded together to be load balanced > on the same IP, any ideas? > > Jan 6 00:42:39 anubis kernel: Unable to handle kernel NULL pointer > dereference at virtual address 00000024 > Jan 6 00:42:39 anubis kernel: printing eip: > Jan 6 00:42:39 anubis kernel: c0135cb0 > Jan 6 00:42:39 anubis kernel: *pde = 00000000 > Jan 6 00:42:39 anubis kernel: Oops: 0002 > Jan 6 00:42:39 anubis kernel: CPU: 0 > Jan 6 00:42:39 anubis kernel: EIP: > 0010:[__remove_from_lru_list+32/112] > Jan 6 00:42:39 anubis kernel: EIP: 0010:[] > Jan 6 00:42:39 anubis kernel: EFLAGS: 00010286 > Jan 6 00:42:39 anubis kernel: eax: 00000000 ebx: ce310cc0 ecx: > ce310cc0 edx: c9b708c0 > Jan 6 00:42:39 anubis kernel: esi: ce310cc0 edi: ce310cc0 ebp: > 00000000 esp: c1427f28 > Jan 6 00:42:39 anubis kernel: ds: 0018 es: 0018 ss: 0018 > Jan 6 00:42:39 anubis kernel: Process kswapd (pid: 5, > stackpage=c1427000) > Jan 6 00:42:39 anubis kernel: Stack: c0135d8d ce310cc0 00000000 > c0138890 ce310cc0 00000003 c1690800 c13f4a64 > Jan 6 00:42:39 anubis kernel: 00000080 c012cc6a 00000000 > c13f4a64 00000000 00000007 c012cfe3 c13f4a64 > Jan 6 00:42:39 anubis kernel: 00000080 00000000 00000000 > 0000000d 000093b6 00000000 c0243600 00000000 > Jan 6 00:42:39 anubis kernel: Call Trace: > [__remove_from_queues+45/48][try_to_free_buffers+112/272] > [try_to_release_page+58/96][do_page_launder+851/2112] > [page_launder+40/96] Jan 6 00:42:39 anubis kernel: Call Trace: > [] [][] [] [] > Jan 6 00:42:39 anubis kernel: [do_try_to_free_pages+18/96] > [kswapd+94/272] [_stext+0/48] [_stext+0/48] [kernel_thread+38/48] > [kswapd+0/272] > Jan 6 00:42:39 anubis kernel: [] [] > [][] [] [] > Jan 6 00:42:39 anubis kernel: > Jan 6 00:42:39 anubis kernel: Code: 89 50 24 8b 44 24 08 8d 14 85 00 > 00 00 00 39 8a 6c 21 2b c0 > > -- > Adam Voigt (adam@cryptocomm.com) > The Cryptocomm Group > My GPG Key: http://64.238.252.49:8080/adam_at_cryptocomm.asc > -- Joshua Kwan joshk@mspencer.net pgp public key at http://joshk.mspencer.net/pubkey_gpg.asc It's hard to keep your shirt on when you're getting something off your chest. --=.Tixv3ruV4SDLUO Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQE+GlFY6TRUxq22Mx4RAixDAJ9bGGHnJmiVXJbC66fwCozSE2rMcACfTRI5 +e9jw1sBTnLyMnUCzDF0zjc= =eIh3 -----END PGP SIGNATURE----- --=.Tixv3ruV4SDLUO--