From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1765598AbXGWJvc (ORCPT ); Mon, 23 Jul 2007 05:51:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1764361AbXGWJub (ORCPT ); Mon, 23 Jul 2007 05:50:31 -0400 Received: from calculon.skynet.ie ([193.1.99.88]:47746 "EHLO calculon.skynet.ie" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1764172AbXGWJu2 (ORCPT ); Mon, 23 Jul 2007 05:50:28 -0400 Date: Mon, 23 Jul 2007 10:50:24 +0100 To: Linus Torvalds Cc: Linux Kernel Mailing List , venkatesh.pallipadi@intel.com, davej@redhat.com, jhoblitt@ifa.hawaii.edu, auke-jan.h.kok@intel.com Subject: Re: Linus 2.6.23-rc1: ACPI-related oops on x86_64 Message-ID: <20070723095024.GA19437@skynet.ie> References: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.13 (2006-08-11) From: mel@skynet.ie (Mel Gorman) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On (22/07/07 14:04), Linus Torvalds didst pronounce: > > Ok, right on time, two weeks afetr 2.6.22, there's a 2.6.23-rc1 out there. > This was seen on a machine on test.kernel.org; Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP: [] acpi_processor_throttling_seq_show+0xa7/0xd6 PGD 3bd9e067 PUD 3bc6a067 PMD 0 Oops: 0000 [1] SMP CPU 3 Modules linked in: video output button battery floppy ac lp parport_pc parport nvram amd_rng rng_core i2c_amd756 i2c_core Pid: 1522, comm: head Not tainted 2.6.23-rc1-autokern1 #1 RIP: 0010:[] [] acpi_processor_throttling_seq_show+0xa7/0xd6 RSP: 0018:ffff81003c4a5e48 EFLAGS: 00010246 RAX: 0000000000000020 RBX: ffff810037ea1800 RCX: 0000000000000000 RDX: 000000000000002a RSI: ffffffff80599c02 RDI: ffff810037c6a9c0 RBP: ffff810037c6a9c0 R08: ffff81003c3e3051 R09: ffff810037c6a9c0 R10: ffffffffffffffff R11: ffffffff80373e66 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 00007fffd59dcd40 FS: 00002b7ad50e36f0(0000) GS:ffff81003ee56b40(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000000 CR3: 000000003bd9b000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process head (pid: 1522, threadinfo ffff81003c4a4000, task ffff81003ee81040) Stack: ffff81003eed7180 ffff810037c6a9c0 0000000000000001 0000000000000001 0000000000002000 ffffffff802a77b3 ffff81003c4a5f50 ffff81003e2f8ec0 ffff810037c6a9f0 ffff81003de65000 0000000000000000 fffffffffffffffb Call Trace: [] seq_read+0x105/0x28e [] seq_read+0x0/0x28e [] proc_reg_read+0x80/0x9a [] vfs_read+0xcb/0x153 [] sys_read+0x45/0x6e [] system_call+0x7e/0x83 FATAL: Error inserting acpi_cpufreq (/lib/modules/2.6.23-rc1-autokern1/kernel/arch/x86_64/kernel/cpufreq/acpi-cpufreq.ko): No such device Full oops is at http://test.kernel.org/abat/100837/debug/console.log Config file at http://test.kernel.org/abat/100837/build/dotconfig People are added to the CC that git shows were in this general area recently in case they have the quick answer. -- Mel Gorman Part-time Phd Student Linux Technology Center University of Limerick IBM Dublin Software Lab