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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

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** Changed in: linux (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1573700

Title:
  Kernel instability

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Bad power management in kernel 4.4 results in overheating and memory
  corruption. Possibly reported here:
  http://mjg59.dreamwidth.org/41713.html

  Apr 22 14:10:30 oryx kernel: [ 6901.023405] ------------[ cut here ]------------
  Apr 22 14:10:30 oryx kernel: [ 6901.023413] WARNING: CPU: 5 PID: 5658 at /build/linux-Ay7j_C/linux-4.4.0/arch/x86/kernel/check.c:141 check_for_bios_corruption.part.1+0xaf/0x100()
  Apr 22 14:10:30 oryx kernel: [ 6901.023415] Memory corruption detected in low memory
  Apr 22 14:10:30 oryx kernel: [ 6901.023416] Modules linked in: msr rfcomm vmw_vsock_vmci_transport vsock vmw_vmci drbg ansi_cprng ctr ccm ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter ip_tables xt_conntrack x_tables nf_nat nf_conntrack br_netf
  ilter bridge stp llc overlay ec_sys bnep binfmt_misc nls_iso8859_1 snd_hda_codec_hdmi arc4 nvidia_uvm(POE) nvidia_modeset(POE) snd_hda_codec_realtek mxm_wmi snd_hda_codec_generic intel_rapl x86_pkg_temp_thermal intel_powerclamp i915_bpo coretemp intel_ips kvm_intel drm_kms_helper kvm i2c_algo_bit fb_sys_fops syscopyar
  ea sysfillrect sysimgblt irqbypass snd_hda_intel crct10dif_pclmul crc32_pclmul iwlmvm snd_hda_codec snd_hda_core aesni_intel snd_hwdep mac80211 aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd snd_pcm iwlwifi input_leds serio_raw joydev snd_seq_midi snd_seq_midi_event cfg80211 uvcvideo snd_rawmidi nvidia(POE) vi
  deobuf2_vmalloc videobuf2_memops videobuf2_v4l2 snd_seq videobuf2_core v4l2_common rtsx_pci_ms snd_seq_device videodev memstick snd_timer btusb media btrtl hci_uart snd drm btbcm btqca soundcore btintel mei_me bluetooth mei shpchp intel_lpss_acpi intel_lpss wmi acpi_pad mac_hid parport_pc ppdev lp parport autofs4 btrf
  s xor raid6_pq dm_mirror dm_region_hash dm_log hid_generic usbhid rtsx_pci_sdmmc psmouse ahci r8169 nvme rtsx_pci libahci mii i2c_hid pinctrl_sunrisepoint video hid pinctrl_intel fjes
  Apr 22 14:10:30 oryx kernel: [ 6901.023506] CPU: 5 PID: 5658 Comm: kworker/5:0 Tainted: P           OE   4.4.0-21-generic #37-Ubuntu
  Apr 22 14:10:30 oryx kernel: [ 6901.023508] Hardware name: System76, Inc. Oryx Pro/Oryx Pro, BIOS 1.05.09RSA1 11/16/2015
  Apr 22 14:10:30 oryx kernel: [ 6901.023512] Workqueue: events check_corruption
  Apr 22 14:10:30 oryx kernel: [ 6901.023514]  0000000000000286 00000000e16be0ec ffff8807c02bfd20 ffffffff813e93c3
  Apr 22 14:10:30 oryx kernel: [ 6901.023517]  ffff8807c02bfd68 ffffffff81ca6cc0 ffff8807c02bfd58 ffffffff81080f62
  Apr 22 14:10:30 oryx kernel: [ 6901.023520]  0000000000000000 ffff880000010000 ffffffff820fa730 0000000000000001
  Apr 22 14:10:30 oryx kernel: [ 6901.023523] Call Trace:
  Apr 22 14:10:30 oryx kernel: [ 6901.023529]  [<ffffffff813e93c3>] dump_stack+0x63/0x90
  Apr 22 14:10:30 oryx kernel: [ 6901.023533]  [<ffffffff81080f62>] warn_slowpath_common+0x82/0xc0
  Apr 22 14:10:30 oryx kernel: [ 6901.023536]  [<ffffffff81080ffc>] warn_slowpath_fmt+0x5c/0x80
  Apr 22 14:10:30 oryx kernel: [ 6901.023540]  [<ffffffff810653ff>] check_for_bios_corruption.part.1+0xaf/0x100
  Apr 22 14:10:30 oryx kernel: [ 6901.023543]  [<ffffffff81065468>] check_corruption+0x18/0x50
  Apr 22 14:10:30 oryx kernel: [ 6901.023547]  [<ffffffff81099ff2>] process_one_work+0x162/0x480
  Apr 22 14:10:30 oryx kernel: [ 6901.023550]  [<ffffffff8109a35b>] worker_thread+0x4b/0x4c0
  Apr 22 14:10:30 oryx kernel: [ 6901.023553]  [<ffffffff8109a310>] ? process_one_work+0x480/0x480
  Apr 22 14:10:30 oryx kernel: [ 6901.023556]  [<ffffffff8109a310>] ? process_one_work+0x480/0x480
  Apr 22 14:10:30 oryx kernel: [ 6901.023559]  [<ffffffff810a0528>] kthread+0xd8/0xf0
  Apr 22 14:10:30 oryx kernel: [ 6901.023562]  [<ffffffff810a0450>] ? kthread_create_on_node+0x1e0/0x1e0
  Apr 22 14:10:30 oryx kernel: [ 6901.023566]  [<ffffffff8182488f>] ret_from_fork+0x3f/0x70
  Apr 22 14:10:30 oryx kernel: [ 6901.023569]  [<ffffffff810a0450>] ? kthread_create_on_node+0x1e0/0x1e0
  Apr 22 14:10:30 oryx kernel: [ 6901.023571] ---[ end trace bd39c0464c4ce14b ]---

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-21-generic 4.4.0-21.37
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  Uname: Linux 4.4.0-21-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  katox      2267 F.... pulseaudio
   /dev/snd/controlC0:  katox      2267 F.... pulseaudio
  CurrentDesktop: GNOME
  Date: Fri Apr 22 18:34:21 2016
  HibernationDevice: RESUME=UUID=318a1a5e-a37d-4d2a-be53-d08e720e5359
  MachineType: System76, Inc. Oryx Pro
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic.efi.signed root=UUID=dff50ce8-af6c-4fbb-951f-275913943881 ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-21-generic N/A
   linux-backports-modules-4.4.0-21-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-04-22 (0 days ago)
  dmi.bios.date: 11/16/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1.05.09RSA1
  dmi.board.asset.tag: Tag 12345
  dmi.board.name: Oryx Pro
  dmi.board.vendor: System76, Inc.
  dmi.board.version: orxp1
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: System76, Inc.
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.05.09RSA1:bd11/16/2015:svnSystem76,Inc.:pnOryxPro:pvrorxp1:rvnSystem76,Inc.:rnOryxPro:rvrorxp1:cvnSystem76,Inc.:ct10:cvrN/A:
  dmi.product.name: Oryx Pro
  dmi.product.version: orxp1
  dmi.sys.vendor: System76, Inc.

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