Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757910Ab1CBDoW (ORCPT ); Tue, 1 Mar 2011 22:44:22 -0500 Received: from science.horizon.com ([71.41.210.146]:58245 "HELO science.horizon.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1757860Ab1CBDoU (ORCPT ); Tue, 1 Mar 2011 22:44:20 -0500 Date: 1 Mar 2011 22:44:17 -0500 Message-ID: <20110302034417.4954.qmail@science.horizon.com> From: "George Spelvin" To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Null pointer OOPS in sync_inodes_sb+0xa9/0x104 Cc: linux@horizon.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2307 Lines: 46 Just after resuming from a suspend to RAM, 2.6.38-rc6 plus Eric Dumazet's [PATCH] net: Add default_advmss() methods to blackhole dst_ops Core 2 duo, 32-bit kernel, 2 GiB RAM. I suspend to RAM every few days; this is not the first time since booting. The display hadn'd flipped to X yet, so I managed to capture the screen (manually transcribed): BUG: unable to handle kernel NULL pointer dereference at 00000030 IP: [] sync_inodes_sb+0xa9/0x104 *pde = 00000000 Oops: 0000 [#1] SMP last sysfs file: /sys/devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1.3/3-1.3:1.0/input11/name Modules linked in: btusb sco rfcomm l2cap crc16 bluetooth ctr twofish_generic twofish_i586 twofish_common serpent xcbc sha256_generic b43 mac80211 cfg80211 Pid: 23367, comm: mount Not tainted 2.6.38-rc6 #228 Dell Inc. MXC061 /0MG532 EIP: 0060:[] EFLAGS: 0010246 CPU: 1 EIP is at sync_inodes_sb+0xa9/0x104 EAX: c003fd5c EBX: f58f606c ECX: 00000000 EDX: 00000909 ESI: d4cc1424 EDI: c003fd0c EBP: 00000000 ESP: f56ffee8 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 Process mount (pid: 23367, ti=f56fe000 task=c28472a0 task.ti = f56fe000) Stack: 7fffffff f58f6000 00000001 00000000 f56ffef8 f56ffef8 f56fff04 00000000 00000303 f56fff0c f56fff0c f58f6000 00000001 00000000 f4a57000 c10a6c72 f58f6000 00000020 00000000 c108e442 00000000 00000000 00000020 00000000 Call Trace: [] ? _sync_filesystem+0x3a/0x69 [] ? do_remount_sb+0x59/0xce [] ? do_mount+0x214/0x6a8 [] ? sys_mount+0x74/0xa9 [] ? sysenter_do_call+0x12/0x26 Code: b9 3a c1 e8 f4 6d f8 ff b8 80 f7 51 c1 31 f6 e8 f1 09 26 00 8b 7b 6c 83 c3 6c 83 ef 50 eb 44 f6 47 30 38 75 38 8b af c0 00 00 00 <83> 7d 30 00 74 2c 89 f8 e8 1a 85 ff ff fe 05 80 f7 51 c1 89 f0 EIP: [] sync_inodes_sb+0xa9/0x104 SS:ESP 0068:f56ffee8 CR2: 0000000000000030 I can't make much sense out of it, but maybe someone can. It's a simple laptop with one rotating hard drive. Distro is Debian/unstable, kernel is hand-compiled from Linus' git. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/