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["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

*** This bug is a duplicate of bug 1477842 ***
    https://bugs.launchpad.net/bugs/1477842

** This bug has been marked a duplicate of bug 1477842
   BUG: unable to handle kernel NULL pointer dereference

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https://bugs.launchpad.net/bugs/1477777

Title:
  BUG: unable to handle kernel

Status in linux-lts-trusty package in Ubuntu:
  New

Bug description:
  Hi,

  My kernel crashed and info is below.

  
  [25760.753361] BUG: unable to handle kernel NULL pointer dereference at 0000000000000018
  [25760.753632] IP: [<ffffffff81077548>] __next_timer_interrupt+0xd8/0x170
  [25760.753851] PGD 0 
  [25760.753918] Oops: 0000 [#1] SMP 
  [25760.754030] Modules linked in: netconsole configfs iptable_nat nf_nat_ipv4 xt_addrtype nf_nat bridge stp llc aufs veth ip6table_filter ip6_tables iptable_filter ip_tables x_tables openvswitch vxlan ip_tunnel gre libcrc32c deflate ctr twofish_generic twofish_avx_x86_64 twofish_x86_64_3way twofish_x86_64 twofish_common camellia_generic camellia_aesni_avx_x86_64 camellia_x86_64 serpent_avx_x86_64 serpent_sse2_x86_64 glue_helper lrw serpent_generic xts gf128mul blowfish_generic blowfish_x86_64 blowfish_common cast5_avx_x86_64 ablk_helper cryptd cast5_generic cast_common des_generic cmac xcbc rmd160 crypto_null af_key xfrm_algo nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 sb_edac joydev dcdbas mei_me gpio_ich acpi_power_meter bonding mei edac_core hid_generic shpchp lpc_ich mac_hid wmi ipmi_si lp parport ses enclosure usbhid hid tg3 ptp megaraid_sas pps_core
  [25760.756742] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G        W     3.13.0-55-generic #92~precise1-Ubuntu
  [25760.757045] Hardware name: Dell Inc. PowerEdge R720xd/0DCWD1, BIOS 2.1.2 09/19/2013
  [25760.757290] task: ffff880bfcf53000 ti: ffff880bfcf7c000 task.ti: ffff880bfcf7c000
  [25760.757527] RIP: 0010:[<ffffffff81077548>]  [<ffffffff81077548>] __next_timer_interrupt+0xd8/0x170
  [25760.757818] RSP: 0018:ffff88180f203e18  EFLAGS: 00010082
  [25760.757986] RAX: 0000000100612d10 RBX: 000000000100612d RCX: 0000000100612de0
  [25760.758213] RDX: 0000000000000000 RSI: ffff8817fcf792f8 RDI: 000000000000002d
  [25760.758439] RBP: ffff88180f203e48 R08: 0000000000000001 R09: 000000000000002d
  [25760.758666] R10: ffff8817fcf79028 R11: 0000000000000000 R12: 0000000000000040
  [25760.758892] R13: 0000000140612cbf R14: ffff8817fcf78000 R15: 0000000000d34c68
  [25760.759122] FS:  0000000000000000(0000) GS:ffff88180f200000(0000) knlGS:0000000000000000
  [25760.759380] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [25760.759562] CR2: 0000000000000018 CR3: 0000000001c0d000 CR4: 00000000000407e0
  [25760.759788] Stack:
  [25760.759850]  ffff8817fcf79028 ffff8817fcf79428 ffff8817fcf79828 ffff8817fcf79c28
  [25760.760101]  0000000100612cc0 0000000100612cc0 ffff88180f203e98 ffffffff8107a1d2
  [25760.760352]  0000000000000286 0000000000000286 ffff88180f203e98 0000000000000286
  [25760.760599] Call Trace:
  [25760.760674]  <IRQ> 
  [25760.760740]  [<ffffffff8107a1d2>] get_next_timer_interrupt+0xa2/0x130
  [25760.769261]  [<ffffffff810dcc2d>] tick_nohz_stop_sched_tick+0x1fd/0x360
  [25760.777814]  [<ffffffff810dce1a>] __tick_nohz_idle_enter+0x8a/0xc0
  [25760.786416]  [<ffffffff810dd188>] tick_nohz_irq_exit+0xb8/0xd0
  [25760.794945]  [<ffffffff810708d5>] irq_exit+0xd5/0x140
  [25760.803388]  [<ffffffff817721ba>] smp_apic_timer_interrupt+0x4a/0x60
  [25760.811884]  [<ffffffff81770b1d>] apic_timer_interrupt+0x6d/0x80
  [25760.820435]  <EOI> 
  [25760.820500]  [<ffffffff815fee9e>] ? cpuidle_enter_state+0x5e/0xe0
  [25760.837628]  [<ffffffff815fee97>] ? cpuidle_enter_state+0x57/0xe0
  [25760.846169]  [<ffffffff815fefe0>] cpuidle_idle_call+0xc0/0x210
  [25760.854718]  [<ffffffff8101e9de>] arch_cpu_idle+0xe/0x30
  [25760.863220]  [<ffffffff810c3ff8>] cpu_idle_loop+0x78/0x270
  [25760.871727]  [<ffffffff810d9bc2>] ? clockevents_register_device+0xe2/0x140
  [25760.880329]  [<ffffffff810c425b>] cpu_startup_entry+0x6b/0x70
  [25760.888946]  [<ffffffff8104478d>] start_secondary+0xcd/0xd0
  [25760.897537] Code: 7d e8 48 89 55 e0 41 89 d9 41 83 e1 3f 44 89 cf 0f 1f 00 48 63 f7 48 c1 e6 04 4c 01 d6 48 8b 16 48 39 f2 74 25 66 0f 1f 44 00 00 <f6> 42 18 01 75 11 48 8b 4a 10 41 b8 01 00 00 00 48 39 c1 48 0f 
  [25760.915546] RIP  [<ffffffff81077548>] __next_timer_interrupt+0xd8/0x170
  [25760.924368]  RSP <ffff88180f203e18>
  [25760.933187] CR2: 0000000000000018
  [ 6379.889801] usb 2-1.2: device descriptor read/64, error -32
  [ 6380.065543] usb 2-1.2: device descriptor read/64, error -32
  [ 6380.313432] usb 2-1.2: device descriptor read/64, error -32
  [ 6380.489380] usb 2-1.2: device descriptor read/64, error -32
  [ 6381.072960] usb 2-1.2: device not accepting address 9, error -32
  [ 6381.556736] usb 2-1.2: device not accepting address 10, error -32
  [ 6381.557086] hub 2-1:1.0: unable to enumerate USB device on port 2
  [ 6785.185130] ICMPv6: process `sysctl' is using deprecated sysctl (syscall) net.ipv6.neigh.bond0.base_reachable_time - use net.ipv6.neigh.bond0.base_reachable_time_ms instead
  [ 6785.198908] nr_pdflush_threads exported in /proc is scheduled for removal
  [ 6785.199372] sysctl: The scan_unevictable_pages sysctl/node-interface has been disabled for lack of a legitimate use case.  If you have one, please send an email to linux-mm@xxxxxxxxx.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.13.0-55-generic 3.13.0-55.92~precise1
  ProcVersionSignature: Ubuntu 3.13.0-55.92~precise1-generic 3.13.11-ckt20
  Uname: Linux 3.13.0-55-generic x86_64
  ApportVersion: 2.0.1-0ubuntu5
  Architecture: amd64
  Date: Fri Jul 24 06:10:30 2015
  InstallationMedia: Ubuntu-Server 12.04 LTS "Precise Pangolin" - Release amd64 (20120424.1)
  ProcEnviron:
   TERM=xterm-256color
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: linux-lts-trusty
  UpgradeStatus: No upgrade log present (probably fresh install)

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