From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753390Ab2D2NhI (ORCPT ); Sun, 29 Apr 2012 09:37:08 -0400 Received: from mail1-relais-roc.national.inria.fr ([192.134.164.82]:45276 "EHLO mail1-relais-roc.national.inria.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750810Ab2D2NhG (ORCPT ); Sun, 29 Apr 2012 09:37:06 -0400 X-IronPort-AV: E=Sophos;i="4.75,500,1330902000"; d="scan'208";a="156081411" X-Mozilla-Keys: X-IronPort-AV: E=Sophos;i="4.75,499,1330902000"; d="scan'208";a="156077103" Message-ID: <4F9D2A2B.9090501@loria.fr> Date: Sun, 29 Apr 2012 13:46:51 +0200 From: Jens Gustedt User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:11.0) Gecko/20120412 Thunderbird/11.0.1 MIME-Version: 1.0 Newsgroups: linux.kernel CC: gregkh@linuxfoundation.org Subject: BUG in 3.3.4 References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Apparently-To: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org To: unlisted-recipients:; (no To-header on input) Hi, it looks that there is a regression in 3.3.4 compared to 3.3.3. After migrating I have the BUG as copied below. If somebody thinks that this would make sense, I could try to bisect this. Jens [ 9.723430] BUG: unable to handle kernel NULL pointer dereference at 0000000000000012 [ 9.723478] IP: [] strstr+0x26/0x80 [ 9.723485] PGD 11623f067 PUD 1154ad067 PMD 0 [ 9.723489] Oops: 0000 [#1] SMP [ 9.723491] CPU 0 [ 9.723492] Modules linked in: dell_laptop(+) fscache snd cfg80211 dcdbas v4l2_compat_ioctl32 auth_rpcgss videobuf2_vmalloc videobuf2_memops nfs_acl soundcore sunrpc psmouse snd_page_alloc serio_raw lm75 coretemp i915 ahci libahci drm_kms_helper drm sdhci_pci sdhci e1000e i2c_algo_bit video [ 9.723505] [ 9.723508] Pid: 567, comm: modprobe Not tainted 3.3.4 #6 Dell Inc. Latitude E6320/0GJF11 [ 9.723511] RIP: 0010:[] [] strstr+0x26/0x80 [ 9.723515] RSP: 0018:ffff88011e655e60 EFLAGS: 00010206 [ 9.723516] RAX: 0000000000000012 RBX: ffffffffa0215e58 RCX: 0000000000000012 [ 9.723518] RDX: ffffffffa0215e7a RSI: ffffffffa0215e69 RDI: 0000000000000012 [ 9.723520] RBP: ffff88011e655e68 R08: 0000000000000011 R09: 000000000000000a [ 9.723522] R10: ffff880000000000 R11: 0000000000000000 R12: 0000000000000000 [ 9.723524] R13: ffffffffa0215e58 R14: 0000000000000000 R15: 0000000000404f2f [ 9.723526] FS: 00007f9b94a04720(0000) GS:ffff88012dc00000(0000) knlGS:0000000000000000 [ 9.723528] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 9.723530] CR2: 0000000000000012 CR3: 0000000114958000 CR4: 00000000000406f0 [ 9.723532] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 9.723534] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 9.723536] Process modprobe (pid: 567, threadinfo ffff88011e654000, task ffff880114d4db40) [ 9.723538] Stack: [ 9.723539] ffffffffa0215e58 ffff88011e655e98 ffffffff814a25fd ffff88011e655f10 [ 9.723542] ffffffffa0215e58 0000000000000000 ffffffffa022c09e ffff88011e655eb8 [ 9.723544] ffffffff814a26f8 00000000ffffffed 0000000000000000 ffff88011e655f18 [ 9.723547] Call Trace: [ 9.723553] [] dmi_matches+0x5d/0xd0 [ 9.723557] [] ? find_tokens+0x9e/0x9e [dell_laptop] [ 9.723560] [] dmi_check_system+0x28/0x60 [ 9.723564] [] dell_init+0x3d/0xf62 [dell_laptop] [ 9.723567] [] ? set_memory_nx+0x43/0x50 [ 9.723571] [] ? find_tokens+0x9e/0x9e [dell_laptop] [ 9.723575] [] do_one_initcall+0x42/0x180 [ 9.723579] [] sys_init_module+0xd4/0x230 [ 9.723583] [] system_call_fastpath+0x16/0x1b [ 9.723585] Code: 00 00 00 00 00 55 48 89 f8 48 89 e5 80 3e 00 53 74 13 48 89 f2 48 ff c2 80 3a 00 75 f8 49 89 d0 49 29 f0 75 03 5b c9 c3 48 89 c1 <80> 38 00 74 0d 0f 1f 44 00 00 48 ff c1 80 39 00 75 f8 49 89 c9 [ 9.723606] RIP [] strstr+0x26/0x80 [ 9.723609] RSP [ 9.723610] CR2: 0000000000000012 [ 9.779392] Linux video capture interface: v2.00 [ 9.779974] ---[ end trace 5ac2b643564e817f ]---