kernel-packages team mailing list archive

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

NoBugs, the next step is to fully reverse commit bisect from kernel 4.4
to 4.7-rc5 in order to identify the last bad commit, followed
immediately by the first good one. Once this good commit has been
identified, it may be reviewed for backporting. Could you please do this
following
https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F
?

Please note, finding adjacent kernel versions is not fully commit
bisecting.

Also, the kernel release names are irrelevant for the purposes of
bisecting.

After the fix commit (not kernel version) has been identified, then
please mark this report Status Confirmed.

Thank you for your help.

** Tags added: kernel-fixed-upstream needs-reverse-bisect

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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1586073

Title:
  Blank screen after boot

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  The screen becomes black blank between BIOS screen and the login page.
  The black screen never goes away. This is random not after install,
  update or upgrade. Also after PC reboot it works fine, it is not
  persistent problem, once PC is loaded it works.

  Ubuntu 16.04 LTS, Linux pm03 4.4.0-22-generic #39-Ubuntu SMP Thu May 5
  16:53:32 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

  lshw -C video   *-display
         description: VGA compatible controller
         product: Sky Lake Integrated Graphics
         vendor: Intel Corporation
         physical id: 2
         bus info: pci@0000:00:02.0
         version: 06
         width: 64 bits
         clock: 33MHz
         capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
         configuration: driver=i915_bpo latency=0
         resources: irq:155 memory:de000000-deffffff memory:c0000000-cfffffff ioport:f000(size=64)

  ----- sample from journalctl.txt in attachement

  May 26 10:03:59 pm03 kernel: BUG: unable to handle kernel paging request at 0000000000017860
  May 26 10:03:59 pm03 kernel: IP: [<ffffffff810ca83e>] native_queued_spin_lock_slowpath+0xfe/0x170
  May 26 10:03:59 pm03 kernel: PGD 0
  May 26 10:03:59 pm03 kernel: Oops: 0002 [#1] SMP
  May 26 10:03:59 pm03 kernel: Modules linked in: intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_hda_intel kvm snd_hda_codec snd_hda_core snd_hwdep snd_pcm irqbypass snd_seq_midi crct10dif_pclmul snd_seq_midi_event crc32_pclmul snd_rawmidi aesni_intel aes_x86_64 lrw gf128mul glue_helper snd_seq ablk_helper cryptd snd_seq_device snd_timer snd serio_raw soundcore input_leds joydev btusb btrtl shpchp mei_me mei hci_uart btbcm btqca btintel bluetooth 8250_fintek mac_hid intel_lpss_acpi intel_lpss acpi_als kfifo_buf acpi_pad industrialio ipt_REJECT nf_reject_ipv4 xt_comment nf_log_ipv4 nf_log_common xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp
  May 26 10:03:59 pm03 kernel:  nf_conntrack iptable_filter ip_tables parport_pc x_tables ppdev lp parport autofs4 btrfs xor raid6_pq hid_generic usbhid mxm_wmi i915_bpo intel_ips i2c_algo_bit e1000e drm_kms_helper syscopyarea sysfillrect ptp psmouse sysimgblt fb_sys_fops pps_core nvme drm ahci libahci wmi pinctrl_sunrisepoint video pinctrl_intel i2c_hid hid fjes
  May 26 10:03:59 pm03 kernel: CPU: 3 PID: 576 Comm: systemd-udevd Not tainted 4.4.0-22-generic #39-Ubuntu
  May 26 10:03:59 pm03 kernel: Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z170 Extreme6+, BIOS P2.50 03/30/2016
  May 26 10:03:59 pm03 kernel: task: ffff8804620f0ec0 ti: ffff88045faf4000 task.ti: ffff88045faf4000
  ....
  --- 
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  mike       1885 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 16.04
  HibernationDevice: RESUME=UUID=873b089c-bf09-437c-b777-98f2fe057ebf
  InstallationDate: Installed on 2016-04-15 (78 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323)
  MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic root=UUID=6be8fdbf-f8c0-4bd5-b72b-379ed2199d23 ro
  ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-22-generic N/A
   linux-backports-modules-4.4.0-22-generic  N/A
   linux-firmware                            1.157
  Tags:  xenial xenial
  Uname: Linux 4.4.0-22-generic x86_64
  UnreportableReason: The report belongs to a package that is not installed.
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev root sambashare sudo www-data
  _MarkForUpload: False
  dmi.bios.date: 03/30/2016
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P2.50
  dmi.board.name: Z170 Extreme6+
  dmi.board.vendor: ASRock
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd03/30/2016:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnZ170Extreme6+:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To Be Filled By O.E.M.
  dmi.product.version: To Be Filled By O.E.M.
  dmi.sys.vendor: To Be Filled By O.E.M.

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