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[Bug 1269404] Re: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

 

** This bug is no longer a duplicate of bug 1275116
   lowlatency-flavour crashes and locks up alot

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https://bugs.launchpad.net/bugs/1269404

Title:
  BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Trusty:
  Confirmed

Bug description:
  I'm using Ubuntu 14.04 Trusty Tahr 64 bit and my laptop (Dell XPS
  L702x using Nvidia Optimus) can't boot starting with kernel  3.13
  (I've tried all three updates: 3.13.0-1-generic, 3.13.0-2-generic and
  3.13.0-3-generic). When booting, I get this error: "BUG: soft lockup -
  CPU#2 stuck for 22s! [systemd-udevd:546]"

  Booting the old 3.12 (3.12.0-8-generic) kernel works.

  Here's the relevant part from syslog:

  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136613] BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136638] Modules linked in: parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136678] CPU: 2 PID: 546 Comm: systemd-udevd Tainted: PF       W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136679] Hardware name: Dell Inc.          Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136681] task: ffff880423d5e000 ti: ffff880036b4a000 task.ti: ffff880036b4a000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136682] RIP: 0010:[<ffffffff810d98c8>]  [<ffffffff810d98c8>] smp_call_function_many+0x268/0x2d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136687] RSP: 0018:ffff880036b4bb78  EFLAGS: 00000202
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136688] RAX: 0000000000000006 RBX: ffff880036b4bb28 RCX: ffff88043e5981d0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136689] RDX: 0000000000000006 RSI: 0000000000000100 RDI: 0000000000000000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136690] RBP: ffff880036b4bbc8 R08: ffff88043e495348 R09: 0000000000000004
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136691] R10: ffff88043e495348 R11: 29312e312e312820 R12: ffffffff81362dd4
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136692] R13: ffff880036b4bb40 R14: ffffffff81ec810d R15: ffffffff81a5ef2d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136693] FS:  00007f192e8ca880(0000) GS:ffff88043e480000(0000) knlGS:0000000000000000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136694] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136695] CR2: 0000000000f76068 CR3: 0000000036935000 CR4: 00000000000407e0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697] Stack:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136697]  ffff88043e495368 0000000000015300 0000000000000000 ffffffff81059da0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136700]  0000010000000001 000000000000011b ffffffff81059da0 0000000000000000
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136702]  ffff88043e5d08a8 ffff88043e5d0808 ffff880036b4bbf0 ffffffff810d9a8d
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136704] Call Trace:
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136708]  [<ffffffff81059da0>] ? flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136710]  [<ffffffff81059da0>] ? flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136712]  [<ffffffff810d9a8d>] on_each_cpu+0x2d/0x60
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136715]  [<ffffffff8105a1fa>] flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136719]  [<ffffffff81182af5>] __purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136722]  [<ffffffff81182d52>] vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136724]  [<ffffffff81056427>] change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136726]  [<ffffffff8171134c>] ? notifier_call_chain+0x4c/0x70
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136728]  [<ffffffff81056823>] set_memory_x+0x43/0x50
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136731]  [<ffffffff810db40b>] unset_module_init_ro_nx+0x6b/0x80
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136734]  [<ffffffff810dfa9b>] load_module+0x139b/0x1b40
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136736]  [<ffffffff810db460>] ? store_uevent+0x40/0x40
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136739]  [<ffffffff810e03b6>] SyS_finit_module+0x86/0xb0
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136742]  [<ffffffff81715a3f>] tracesys+0xe1/0xe6
  Jan 15 14:27:05 ubuntu-desktop kernel: [   36.136743] Code: d2 e8 5d 00 29 00 3b 05 9f 7e c4 00 89 c2 0f 8d 25 fe ff ff 48 98 49 8b 4d 00 48 03 0c c5 c0 f8 d1 81 f6 41 20 01 74 cb 0f 1f 00 <f3> 90 f6 41 20 01 75 f8 eb be 0f b6 4d d0 48 8b 55 c0 44 89 ef 
  Jan 15 14:27:24 ubuntu-desktop NetworkManager[1269]: <warn> (eth0): DHCPv4 request timed out.
  Jan 15 14:27:27 ubuntu-desktop NetworkManager[1269]: <warn> (eth0): DHCP client pid 1343 didn't exit, will kill it.
  Jan 15 14:27:32 ubuntu-desktop kernel: [   62.429213] nf_conntrack: automatic helper assignment is deprecated and it will be removed soon. Use the iptables CT target to attach helpers instead.
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105866] BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105893] Modules linked in: parport_pc ppdev rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core btusb videodev bluetooth snd_hda_codec_hdmi snd_hda_codec_realtek binfmt_misc joydev ip6t_REJECT xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 nvidia(POF) xt_conntrack ip6table_filter dell_wmi sparse_keymap ip6_tables nf_conntrack_netbios_ns arc4 nf_conntrack_broadcast snd_hda_intel nf_nat_ftp nf_nat snd_hda_codec nf_conntrack_ftp nf_conntrack intel_rapl iwldvm iptable_filter snd_hwdep x86_pkg_temp_thermal dell_laptop ip_tables intel_powerclamp dcdbas snd_pcm mac80211 x_tables kvm_intel snd_page_alloc kvm snd_seq_midi snd_seq_midi_event snd_rawmidi i915 snd_seq crct10dif_pclmul crc32_pclmul iwlwifi ghash_clmulni_intel snd_seq_device aesni_intel snd_timer aes_x86_64 lrw gf128mul cfg80211 glue_helper ablk_helper drm_kms_helper snd cryptd mei_me drm mei i2c_algo_bit psmouse soundcore wmi lpc_ich serio_raw mac_hid video coretemp lp parport hid_generic usbhid hid microcode ahci r8169 libahci mii
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105945] CPU: 2 PID: 546 Comm: systemd-udevd Tainted: PF       W  O 3.13.0-3-generic #18-Ubuntu
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105947] Hardware name: Dell Inc.          Dell System XPS L702X/0XN71K, BIOS A18 06/18/2012
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105948] task: ffff880423d5e000 ti: ffff880036b4a000 task.ti: ffff880036b4a000
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105950] RIP: 0010:[<ffffffff810d98ce>]  [<ffffffff810d98ce>] smp_call_function_many+0x26e/0x2d0
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105955] RSP: 0018:ffff880036b4bb78  EFLAGS: 00000202
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105956] RAX: 0000000000000006 RBX: ffff880036b4bb28 RCX: ffff88043e5981d0
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105957] RDX: 0000000000000006 RSI: 0000000000000100 RDI: 0000000000000000
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105958] RBP: ffff880036b4bbc8 R08: ffff88043e495348 R09: 0000000000000004
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105959] R10: ffff88043e495348 R11: 29312e312e312820 R12: ffffffff81362dd4
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105960] R13: ffff880036b4bb40 R14: ffffffff81ec810d R15: ffffffff81a5ef2d
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105961] FS:  00007f192e8ca880(0000) GS:ffff88043e480000(0000) knlGS:0000000000000000
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105962] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105963] CR2: 0000000000f76068 CR3: 0000000036935000 CR4: 00000000000407e0
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105964] Stack:
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105966]  ffff88043e495368 0000000000015300 0000000000000000 ffffffff81059da0
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105968]  0000010000000001 000000000000011b ffffffff81059da0 0000000000000000
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105970]  ffff88043e5d08a8 ffff88043e5d0808 ffff880036b4bbf0 ffffffff810d9a8d
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105972] Call Trace:
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105978]  [<ffffffff81059da0>] ? flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105980]  [<ffffffff81059da0>] ? flush_tlb_func+0xc0/0xc0
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105982]  [<ffffffff810d9a8d>] on_each_cpu+0x2d/0x60
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105984]  [<ffffffff8105a1fa>] flush_tlb_kernel_range+0x4a/0x70
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105988]  [<ffffffff81182af5>] __purge_vmap_area_lazy+0x335/0x430
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105991]  [<ffffffff81182d52>] vm_unmap_aliases+0x162/0x180
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105993]  [<ffffffff81056427>] change_page_attr_set_clr+0xb7/0x470
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105997]  [<ffffffff8171134c>] ? notifier_call_chain+0x4c/0x70
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.105999]  [<ffffffff81056823>] set_memory_x+0x43/0x50
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.106002]  [<ffffffff810db40b>] unset_module_init_ro_nx+0x6b/0x80
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.106005]  [<ffffffff810dfa9b>] load_module+0x139b/0x1b40
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.106007]  [<ffffffff810db460>] ? store_uevent+0x40/0x40
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.106010]  [<ffffffff810e03b6>] SyS_finit_module+0x86/0xb0
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.106013]  [<ffffffff81715a3f>] tracesys+0xe1/0xe6
  Jan 15 14:27:33 ubuntu-desktop kernel: [   64.106014] Code: 3b 05 9f 7e c4 00 89 c2 0f 8d 25 fe ff ff 48 98 49 8b 4d 00 48 03 0c c5 c0 f8 d1 81 f6 41 20 01 74 cb 0f 1f 00 f3 90 f6 41 20 01 <75> f8 eb be 0f b6 4d d0 48 8b 55 c0 44 89 ef 48 8b 75 c8 e8 ea 
  Jan 15 14:27:37 ubuntu-desktop kernel: [   68.069508] INFO: rcu_sched detected stalls on CPUs/tasks: { 6} (detected by 4, t=15002 jiffies, g=357, c=356, q=0)
  Jan 15 14:27:37 ubuntu-desktop kernel: [   68.069560] sending NMI to all CPUs:
  Jan 15 14:27:37 ubuntu-desktop kernel: [   68.069564] NMI backtrace for cpu 6
  Jan 15 14:27:37 ubuntu-desktop kernel: [   68.069568] CPU: 6 PID: 102 Comm: irq/23-ehci_hcd Tainted: PF       W  O 3.13.0-3-generic #18-Ubuntu

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-headers-3.13.0-3-generic 3.13.0-3.18
  ProcVersionSignature: Ubuntu 3.12.0-8.16-generic 3.12.6
  Uname: Linux 3.12.0-8-generic x86_64
  ApportVersion: 2.13.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  andrei     5038 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Jan 15 14:51:37 2014
  HibernationDevice: RESUME=UUID=92e5858f-a853-468f-b8fe-c95d3a2f4242
  InstallationDate: Installed on 2012-12-30 (381 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MachineType: Dell Inc. Dell System XPS L702X
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.12.0-8-generic root=UUID=1cd2fc4f-7d99-4c7a-8ea7-6f9a2d4e5960 ro quiet splash threadirqs pcie_aspm=force i915.i915_enable_rc6=1
  RelatedPackageVersions:
   linux-restricted-modules-3.12.0-8-generic N/A
   linux-backports-modules-3.12.0-8-generic  N/A
   linux-firmware                            1.121
  SourcePackage: linux
  StagingDrivers: zram
  UpgradeStatus: Upgraded to trusty on 2013-01-12 (367 days ago)
  dmi.bios.date: 06/18/2012
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A18
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 0XN71K
  dmi.board.vendor: Dell Inc.
  dmi.board.version: FAB1
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA18:bd06/18/2012:svnDellInc.:pnDellSystemXPSL702X:pvr:rvnDellInc.:rn0XN71K:rvrFAB1:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: Dell System XPS L702X
  dmi.sys.vendor: Dell Inc.

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References