This is the oops I'm getting with the latest 'precise' kernel: Apr 23 21:27:33 eeepc kernel: [ 111.193164] BUG: unable to handle kernel NULL pointer dereference at (null) Apr 23 21:27:33 eeepc kernel: [ 111.193504] IP: [<c10272d8>] __ticket_spin_lock+0x8/0x30 Apr 23 21:27:33 eeepc kernel: [ 111.193728] *pde = 00000000 Apr 23 21:27:33 eeepc kernel: [ 111.193844] Oops: 0002 [#1] SMP Apr 23 21:27:33 eeepc kernel: [ 111.193978] Modules linked in: hidp hid dm_crypt bnep rfcomm parport_pc ppdev snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep binfmt_misc joydev snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq uvcvideo arc4 videodev snd_timer snd_seq_device rt2800pci rt2800lib crc_ccitt rt2x00pci rt2x00lib btusb snd bluetooth mac80211 psmouse serio_raw cfg80211 soundcore eeprom_93cx6 snd_page_alloc eeepc_laptop sparse_keymap mac_hid lp parport atl1e i915 drm_kms_helper drm usb_storage i2c_algo_bit video Apr 23 21:27:33 eeepc kernel: [ 111.195982] Apr 23 21:27:33 eeepc kernel: [ 111.196049] Pid: 2148, comm: khidpd_04580058 Not tainted 3.2.0-23-generic #36-Ubuntu ASUSTeK Computer INC. 901/901 Apr 23 21:27:33 eeepc kernel: [ 111.196575] EIP: 0060:[<c10272d8>] EFLAGS: 00010096 CPU: 1 Apr 23 21:27:33 eeepc kernel: [ 111.196868] EIP is at __ticket_spin_lock+0x8/0x30 Apr 23 21:27:33 eeepc kernel: [ 111.196993] EAX: 00000000 EBX: 00000296 ECX: 00000000 EDX: 00000100 Apr 23 21:27:33 eeepc kernel: [ 111.196993] ESI: f6085f94 EDI: 00000002 EBP: f6085f14 ESP: f6085f14 Apr 23 21:27:33 eeepc kernel: [ 111.196993] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Apr 23 21:27:33 eeepc kernel: [ 111.196993] Process khidpd_04580058 (pid: 2148, ti=f6084000 task=f6020000 task.ti=f6084000) Apr 23 21:27:33 eeepc kernel: [ 111.196993] Stack: Apr 23 21:27:33 eeepc kernel: [ 111.196993] f6085f1c c1027378 f6085f30 c1576d2d 00000000 f6085f94 00000002 f6085f48 Apr 23 21:27:33 eeepc kernel: [ 111.196993] c106a252 f40e2800 0000007d f62be200 f40e2800 f6085fb8 f8e4ae80 00000000 Apr 23 21:27:33 eeepc kernel: [ 111.196993] f70013c0 f62bfa00 f62be200 f6020000 f62bfa48 f62be248 00000000 f6020000 Apr 23 21:27:33 eeepc kernel: [ 111.196993] Call Trace: Apr 23 21:27:33 eeepc kernel: [ 111.196993] [<c1027378>] default_spin_lock_flags+0x8/0x10 Apr 23 21:27:33 eeepc kernel: [ 111.196993] [<c1576d2d>] _raw_spin_lock_irqsave+0x2d/0x40 Apr 23 21:27:33 eeepc kernel: [ 111.196993] [<c106a252>] prepare_to_wait+0x22/0x70 Apr 23 21:27:33 eeepc kernel: [ 111.196993] [<f8e4ae80>] hidp_session+0x300/0x420 [hidp] Apr 23 21:27:33 eeepc kernel: [ 111.196993] [<c1044af0>] ? try_to_wake_up+0x190/0x190 Apr 23 21:27:33 eeepc kernel: [ 111.196993] [<c1044af0>] ? try_to_wake_up+0x190/0x190 Apr 23 21:27:33 eeepc kernel: [ 111.196993] [<c106a390>] ? add_wait_queue+0x50/0x50 Apr 23 21:27:33 eeepc kernel: [ 111.196993] [<f8e4ab80>] ? hidp_recv_ctrl_frame+0xd0/0xd0 [hidp] Apr 23 21:27:33 eeepc kernel: [ 111.196993] [<c1069b8d>] kthread+0x6d/0x80 Apr 23 21:27:33 eeepc kernel: [ 111.196993] [<c1069b20>] ? flush_kthread_worker+0x80/0x80 Apr 23 21:27:33 eeepc kernel: [ 111.196993] [<c157e37e>] kernel_thread_helper+0x6/0x10 Apr 23 21:27:33 eeepc kernel: [ 111.196993] Code: ff ff 90 b8 8d 71 02 c1 b9 8a 71 02 c1 e9 59 ff ff ff 90 b8 93 71 02 c1 b9 90 71 02 c1 e9 49 ff ff ff 90 55 ba 00 01 00 00 89 e5 <f0> 66 0f c1 10 0f b6 ce 38 d1 74 0d 8d 74 26 00 f3 90 0f b6 10 Apr 23 21:27:33 eeepc kernel: [ 111.196993] EIP: [<c10272d8>] __ticket_spin_lock+0x8/0x30 SS:ESP 0068:f6085f14 Apr 23 21:27:33 eeepc kernel: [ 111.196993] CR2: 0000000000000000 Apr 23 21:27:33 eeepc kernel: [ 111.350144] [drm] Changing LVDS panel from (+hsync, +vsync) to (-hsync, -vsync) Apr 23 21:27:33 eeepc kernel: [ 111.441114] ---[ end trace 335a7615d1621dfc ]---
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/977123 Title: Kernel Oops - BUG: unable to handle kernel NULL pointer dereference at (null); EIP is at __ticket_spin_lock+0x8/0x30 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/977123/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
