Master, thank you for taking the time to report this bug and helping to make Ubuntu better. However, I am closing it because the bug has been fixed.
This is a significant bug in Ubuntu. If you need a fix for the bug in previous versions of Ubuntu, please perform as much as possible of the SRU Procedure [1] to bring the need to a developer's attention. [1]: https://wiki.ubuntu.com/StableReleaseUpdates#Procedure ** Changed in: linux (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/978283 Title: BUG: unable to handle kernel NULL pointer dereference at (null); RIP: 0010:[<ffffffff8103dff9>] [<ffffffff8103dff9>] __ticket_spin_lock+0x9/0x30 Status in “linux” package in Ubuntu: Fix Released Bug description: Wen I search and connect bluetooth devices/This bug goes from 2.6.39 kernel Upstart job, you may also use the start(8) utility, e.g. start S20acpid start: Unknown job: S20acpid Apr 9 22:54:49 GlukPC kernel: [ 81.356071] BUG: unable to handle kernel NULL pointer dereference at (null) Apr 9 22:54:49 GlukPC kernel: [ 81.356167] IP: [<ffffffff8103dff9>] __ticket_spin_lock+0x9/0x30 Apr 9 22:54:49 GlukPC kernel: [ 81.356236] PGD 872c2067 PUD 872c1067 PMD 0 Apr 9 22:54:49 GlukPC kernel: [ 81.356286] Oops: 0002 [#1] SMP Apr 9 22:54:49 GlukPC kernel: [ 81.356325] CPU 0 Apr 9 22:54:49 GlukPC kernel: [ 81.356345] Modules linked in: hidp hid dm_crypt parport_pc ppdev snd_hda_codec_realtek pcmcia snd_hda_intel snd_hda_codec snd_hwdep mmc_block snd_pcm arc4 snd_seq_midi rfcomm snd_rawmidi b43 snd_seq_midi_event yenta_socket snd_seq pcmcia_rsrc joydev bnep snd_timer tifm_sd snd_seq_device tifm_7xx1 tifm_core pcmcia_core snd btusb uvcvideo mac80211 videodev v4l2_compat_ioctl32 acer_wmi soundcore coretemp mac_hid snd_page_alloc bluetooth sparse_keymap psmouse cfg80211 serio_raw bcma lp parport i915 drm_kms_helper drm i2c_algo_bit sky2 video wmi ssb Apr 9 22:54:49 GlukPC kernel: [ 81.356849] Apr 9 22:54:49 GlukPC kernel: [ 81.356860] Pid: 1915, comm: khidpd_04580058 Not tainted 3.2.11-030211-generic #201203131335 Acer, inc. Aspire 5570 /Prespa1 Apr 9 22:54:49 GlukPC kernel: [ 81.356924] RIP: 0010:[<ffffffff8103dff9>] [<ffffffff8103dff9>] __ticket_spin_lock+0x9/0x30 Apr 9 22:54:49 GlukPC kernel: [ 81.356966] RSP: 0018:ffff88007865fd80 EFLAGS: 00010086 Apr 9 22:54:49 GlukPC kernel: [ 81.356993] RAX: 0000000000010000 RBX: 0000000000000286 RCX: ffff8800bf413740 Apr 9 22:54:49 GlukPC kernel: [ 81.357025] RDX: 0000000000000000 RSI: 0000000000000286 RDI: 0000000000000000 Apr 9 22:54:49 GlukPC kernel: [ 81.357058] RBP: ffff88007865fd80 R08: ffff88007865e000 R09: 0000000000002e29 Apr 9 22:54:49 GlukPC kernel: [ 81.357091] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88007865fe20 Apr 9 22:54:49 GlukPC kernel: [ 81.357124] R13: ffff88007865fe38 R14: ffff8800871d18b8 R15: ffff8800871d1800 Apr 9 22:54:49 GlukPC kernel: [ 81.357157] FS: 0000000000000000(0000) GS:ffff8800bf400000(0000) knlGS:0000000000000000 Apr 9 22:54:49 GlukPC kernel: [ 81.357196] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Apr 9 22:54:49 GlukPC kernel: [ 81.357223] CR2: 0000000000000000 CR3: 00000000872bf000 CR4: 00000000000006f0 Apr 9 22:54:49 GlukPC kernel: [ 81.358999] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Apr 9 22:54:49 GlukPC kernel: [ 81.360027] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Apr 9 22:54:49 GlukPC kernel: [ 81.360027] Process khidpd_04580058 (pid: 1915, threadinfo ffff88007865e000, task ffff8800785944a0) Apr 9 22:54:49 GlukPC kernel: [ 81.360027] Stack: Apr 9 22:54:49 GlukPC kernel: [ 81.360027] ffff88007865fd90 ffffffff8103e0a9 ffff88007865fdb0 ffffffff8165009f Apr 9 22:54:49 GlukPC kernel: [ 81.360027] 0000000000000000 ffff88007865fe20 ffff88007865fde0 ffffffff8108c291 Apr 9 22:54:49 GlukPC kernel: [ 81.360027] ffff8800873f2400 ffff88007865fe20 ffff8800873f2400 0000000000000000 Apr 9 22:54:49 GlukPC kernel: [ 81.360027] Call Trace: Apr 9 22:54:49 GlukPC kernel: [ 81.360027] [<ffffffff8103e0a9>] default_spin_lock_flags+0x9/0x10 Apr 9 22:54:49 GlukPC kernel: [ 81.360027] [<ffffffff8165009f>] _raw_spin_lock_irqsave+0x2f/0x40 Apr 9 22:54:49 GlukPC kernel: [ 81.360027] [<ffffffff8108c291>] finish_wait+0x41/0x90 Apr 9 22:54:49 GlukPC kernel: [ 81.360027] [<ffffffffa042856f>] hidp_session+0x46f/0x520 [hidp] Apr 9 22:54:49 GlukPC kernel: [ 81.360027] [<ffffffff8108c120>] ? wake_up_bit+0x40/0x40 Apr 9 22:54:49 GlukPC kernel: [ 81.360027] [<ffffffff8105f920>] ? try_to_wake_up+0x2c0/0x2c0 Apr 9 22:54:49 GlukPC kernel: [ 81.360027] [<ffffffff8105f920>] ? try_to_wake_up+0x2c0/0x2c0 Apr 9 22:54:49 GlukPC kernel: [ 81.360027] [<ffffffffa0428100>] ? hidp_process_transmit+0xe0/0xe0 [hidp] Apr 9 22:54:49 GlukPC kernel: [ 81.360027] [<ffffffff8108bbc6>] kthread+0x96/0xa0 Apr 9 22:54:49 GlukPC kernel: [ 81.360027] [<ffffffff8165a6f4>] kernel_thread_helper+0x4/0x10 Apr 9 22:54:49 GlukPC kernel: [ 81.360027] [<ffffffff8108bb30>] ? kthread_worker_fn+0x190/0x190 Apr 9 22:54:49 GlukPC kernel: [ 81.360027] [<ffffffff8165a6f0>] ? gs_change+0x13/0x13 Apr 9 22:54:49 GlukPC kernel: [ 81.360027] Code: 00 00 48 c7 c2 fe dd 03 81 48 c7 c1 01 de 03 81 e9 dd fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 55 b8 00 00 01 00 48 89 e5 <f0> 0f c1 07 89 c2 c1 ea 10 66 39 c2 74 13 66 0f 1f 84 00 00 00 Apr 9 22:54:49 GlukPC kernel: [ 81.360027] RIP [<ffffffff8103dff9>] __ticket_spin_lock+0x9/0x30 Apr 9 22:54:49 GlukPC kernel: [ 81.360027] RSP <ffff88007865fd80> Apr 9 22:54:49 GlukPC kernel: [ 81.360027] CR2: 0000000000000000 Apr 9 22:54:49 GlukPC kernel: [ 81.414077] ---[ end trace d35520aa7e37ab9d ]--- --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: lululu 1683 F.... pulseaudio /dev/snd/controlC0: lululu 1683 F.... pulseaudio Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xe4000000 irq 45' Mixer name : 'Realtek ALC662 rev1' Components : 'HDA:10ec0662,1458a002,00100101' Controls : 39 Simple ctrls : 21 Card1.Amixer.info: Card hw:1 'HDMI'/'HDA ATI HDMI at 0xe1010000 irq 46' Mixer name : 'ATI R6xx HDMI' Components : 'HDA:1002aa01,00aa0100,00100000' Controls : 6 Simple ctrls : 1 Card1.Amixer.values: Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] DistroRelease: Ubuntu 12.04 InstallationMedia: Kubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120423) MachineType: Gigabyte Technology Co., Ltd. 945GCM-S2C Package: linux (not installed) ProcEnviron: LANGUAGE=ru_UA TERM=xterm LANG=ru_UA.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=BEEC41E4EC419813 loop=/ubuntu/disks/root.disk ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14 RelatedPackageVersions: linux-restricted-modules-3.2.0-24-generic N/A linux-backports-modules-3.2.0-24-generic N/A linux-firmware 1.79 SourcePackage: linux Tags: precise precise Uname: Linux 3.2.0-24-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo dmi.bios.date: 11/08/2007 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: F4 dmi.board.name: 945GCM-S2C dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF4:bd11/08/2007:svnGigabyteTechnologyCo.,Ltd.:pn945GCM-S2C:pvr:rvnGigabyteTechnologyCo.,Ltd.:rn945GCM-S2C:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: 945GCM-S2C dmi.sys.vendor: Gigabyte Technology Co., Ltd. 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