Public bug reported: I have gotten a number of these since installing this 2.6.38-10-generic kernel and even though I have a serial console connected to this machine, for some reason these are not making it out of the console. Below is a transcription from a photograph (attached) of the console. Please excuse any typos.
BUG: unable to handle kernel NULL pointer dereference at 0000002f IP: [<c1148665>] sync_inodes_sb+0xb5/0x140 *pde - 0587d067 *pte = 00000000 Oops: 0000 [#1] SMP last sysfs file: /sys/devices/virtual/block/dm-10/dm/name Modules linked in: ivtv cx2341x lirc_dev nfs fscache nfsd lockd nfs_acl auth_rpcgss sunrpc exportfs autofs4 snd_usb_audio snd_hwdep snd_usbmidi_lib tuner_simple tuner_types snd_pcm wm8775 snd_seq_midi tda9887 tda8290 xc5000 snd_rawmidi tea5767 snd_seq_midi_event au8522 tuner snd_seq i915 snd_timer cx25840 au0828 snd_seq_device drm_kms_helper dvb_core drm videobuf_vmalloc videobuf_core tveeprom v4l2_common snd ppdev shpchp videodev i2c_algo_bit soundcore snd_page_alloc dcdbas parport_pc video parport pcspkr hwmon_vid b44 r8169 ssb sata_sil floppy [last unloaded: cx2341x ] Pid 30176, comm: mount Not tainted 2.6.38-10-generic #46-Ubuntu Dell Computer Coporation Dimension 2400 EIP: 0060:[<c1148665>] EFLAGS: 00010246 CPU: 0 EIP is at sync_inodes_sb+0xb5/0x140 EAX: 00800000 EBX: c002fd8c ECX: 00000000 EDX: c002fddc ESI: ffffffff EDI: f0c0cc70 EBP: c58a1ef8 ESP: c58a1eb8 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Process mount (pid: 30176, it=c58a0000 task-c0013f20 task.ti=c58a0000 Stack: f0c0cc00 c7c61f14 7fffffff f0c0cc00 00000001 00000000 c58a1ed0 c58a1ed0 c58a1edc 00000000 00000202 c58a1ee4 c58a1ee4 f0c0cc00 00000001 c116b7d0 c58a1f0c c114c7ff f0c0cc00 fffffff3 00000000 c58a1f18 c114c869 f0c0cc00 Call Trace: [<c116b7d0>] ? dquot_quota_sync+0x0/0x2d0 [<c114c7ff>] __sync_filesystem+0x7f/0x90 [<c114c869>] sync_filesystem+0x39/0x50 [<c112a046>] do_remount_sb+0x56/0x110 [<c11405f8>] do_remount+0xb8/0x100 [<c1142aec>] do_mount+0x16c/0x1e0 [<c1142ecb>] sys_mount+0x6b/0xa0 [<c150a194>] syscall_call+0x7/0xb Code: 70 c7 45 c4 00 00 00 00 83 eb 50 eb 04 90 8d 58 b0 8b 43 50 0f 18 00 90 8d 53 50 39 fa 74 4f f6 43 30 38 75 e9 8b b3 c4 00 00 00 <8b> 56 30 85 d2 74 dc 89 d8 e8 3d 5f ff ff b8 40 49 90 c1 e8 a3 EIP: [<c1148665>] sync_inodes_sb+0xb5/0x140 SS:ESP 0068:c58a1eb8 CR2: 000000000000002f ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: linux-image-2.6.38-10-generic 2.6.38-10.46 ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7 Uname: Linux 2.6.38-10-generic i686 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. AplayDevices: **** List of PLAYBACK Hardware Devices **** Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 1: HVR950Q [HVR-950Q], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/by-id', '/dev/snd/controlC1', '/dev/snd/pcmC1D0c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory Card1.Amixer.info: Card hw:1 'HVR950Q'/'Hauppauge HVR-950Q at usb-0000:00:1d.7-4, high speed' Mixer name : 'USB Mixer' Components : 'USB2040:7200' Controls : 1 Simple ctrls : 1 Card1.Amixer.values: Simple mixer control 'Digital In',0 Capabilities: cswitch cswitch-joined penum Capture channels: Mono Mono: Capture [on] Date: Wed Aug 10 07:42:19 2011 IwConfig: lo no wireless extensions. eth0 no wireless extensions. eth2 no wireless extensions. Lsusb: Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 002: ID 2040:7200 Hauppauge Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Dell Computer Corporation Dimension 2400 ProcEnviron: PATH=(custom, no user) LANG=en_CA.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-2.6.38-10-generic root=/dev/mapper/rootvol_tmp-ubuntu_root ro console=ttyS0,115200 console=tty0 resume=/dev/mapper/rootvol-swap vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-2.6.38-10-generic N/A linux-backports-modules-2.6.38-10-generic N/A linux-firmware 1.52 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/02/2003 dmi.bios.vendor: Dell Computer Corporation dmi.bios.version: A05 dmi.board.name: 0F5949 dmi.board.vendor: Dell Computer Corp. dmi.board.version: A01 dmi.chassis.type: 15 dmi.chassis.vendor: Dell Computer Corporation dmi.modalias: dmi:bvnDellComputerCorporation:bvrA05:bd12/02/2003:svnDellComputerCorporation:pnDimension2400:pvr:rvnDellComputerCorp.:rn0F5949:rvrA01:cvnDellComputerCorporation:ct15:cvr: dmi.product.name: Dimension 2400 dmi.sys.vendor: Dell Computer Corporation ** Affects: linux Importance: Unknown Status: Unknown ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 natty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/823873 Title: NULL pointer deref in sync_inodes_sb To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/823873/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs