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[Bug 1505242] Re: WARNING: ... intel_display.c:11100 intel_check_page_flip


Visi Bilius, thank you for reporting this and helping make Ubuntu
better. As per
https://www.asus.com/Motherboards/Z170-A/HelpDesk_Download/ an update to
your computer's buggy and outdated BIOS is available (1101). If you
update to this following https://help.ubuntu.com/community/BIOSUpdate
does it change anything?

If it doesn't, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

For more on BIOS updates and linux, please see

Please note your current BIOS is already in the Bug Description, so
posting this on the old BIOS would not be helpful. As well, you don't
have to create a new bug report.

Once the BIOS is updated, if the problem is still reproducible, and the
information above is provided, then please mark this report Status
Confirmed. Otherwise, please mark this as Invalid.

Thank you for your understanding.

** Tags added: bios-outdated-1101

** Changed in: linux (Ubuntu)
   Importance: Undecided => Low

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

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  WARNING: ... intel_display.c:11100 intel_check_page_flip

Status in linux package in Ubuntu:

Bug description:
  I see warnings similar to this occasionally in the dmesg output.
  I first noticed it, when the system refused to put load on all but one core, and I tried to find the reason.
  But it happened again a few times, and I did not notice that effect (or any).
  I do not know the trigger. I suspect playing video.
  This is a fresh install of Ubuntu 15.04 on a fresh hardware.

  I found several similar error reports with google. All appeared to be unsolved.
  I thought, I submit this report, anyway. Perhaps it provides some new information.

  [ 5967.045926] ------------[ cut here ]------------
  [ 5967.045949] WARNING: CPU: 3 PID: 0 at /build/linux-qOmAV7/linux-3.19.0/ubuntu/i915/intel_display.c:11100 intel_check_page_flip+0x11c/0x130 [i915_bpo]()
  [ 5967.045950] Kicking stuck page flip: queued at 343930, now 343934
  [ 5967.045951] Modules linked in: cfg80211 binfmt_misc dm_crypt nls_iso8859_1 snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel eeepc_wmi snd_hda_controller asus_wmi sparse_keymap snd_hda_codec snd_usb_audio snd_usbmidi_lib snd_hwdep x86_pkg_temp_thermal snd_pcm coretemp kvm_intel kvm snd_seq_midi snd_seq_midi_event crct10dif_pclmul snd_rawmidi ip6t_REJECT nf_reject_ipv6 crc32_pclmul ghash_clmulni_intel nf_log_ipv6 snd_seq uvcvideo aesni_intel videobuf2_vmalloc videobuf2_memops snd_seq_device aes_x86_64 videobuf2_core lrw xt_hl gf128mul v4l2_common glue_helper hid_multitouch videodev ablk_helper ip6t_rt cryptd snd_timer media snd joydev serio_raw i915_bpo nf_conntrack_ipv6 soundcore nf_defrag_ipv6 intel_ips drm_kms_helper ipt_REJECT nf_reject_ipv4 drm 8250_fintek nf_log_ipv4
  [ 5967.045968]  nf_log_common i2c_algo_bit i2c_hid shpchp xt_LOG mac_hid acpi_pad 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 nf_conntrack iptable_filter ip_tables x_tables parport_pc ppdev lp parport autofs4 btrfs xor raid6_pq hid_generic usbhid hid mxm_wmi e1000e psmouse ptp pps_core ahci libahci wmi video
  [ 5967.045984] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 3.19.0-30-generic #34-Ubuntu
  [ 5967.045985] Hardware name: System manufacturer System Product Name/Z170-A, BIOS 0502 07/14/2015
  [ 5967.045986]  ffffffffc076c138 ffff88046ed83d68 ffffffff817c4d5f 0000000000000007
  [ 5967.045987]  ffff88046ed83db8 ffff88046ed83da8 ffffffff81076a8a ffff88046ed83db8
  [ 5967.045988]  ffff88045ac18800 ffff880456f46000 ffff88045ac189a8 0000000000000000
  [ 5967.045990] Call Trace:
  [ 5967.045991]  <IRQ>  [<ffffffff817c4d5f>] dump_stack+0x45/0x57
  [ 5967.045997]  [<ffffffff81076a8a>] warn_slowpath_common+0x8a/0xc0
  [ 5967.045999]  [<ffffffff81076b06>] warn_slowpath_fmt+0x46/0x50
  [ 5967.046011]  [<ffffffffc07112ec>] intel_check_page_flip+0x11c/0x130 [i915_bpo]
  [ 5967.046021]  [<ffffffffc06d821e>] gen8_irq_handler+0x37e/0x5d0 [i915_bpo]
  [ 5967.046023]  [<ffffffff8101e289>] ? read_tsc+0x9/0x10
  [ 5967.046026]  [<ffffffff810cea87>] handle_irq_event_percpu+0x77/0x1a0
  [ 5967.046027]  [<ffffffff810cebf1>] handle_irq_event+0x41/0x70
  [ 5967.046029]  [<ffffffff810d1c5e>] handle_edge_irq+0x6e/0x120
  [ 5967.046031]  [<ffffffff81017772>] handle_irq+0x22/0x40
  [ 5967.046033]  [<ffffffff817cee1f>] do_IRQ+0x4f/0xf0
  [ 5967.046034]  [<ffffffff817ccc2d>] common_interrupt+0x6d/0x6d
  [ 5967.046035]  <EOI>  [<ffffffff8109f117>] ? finish_task_switch+0x67/0x150
  [ 5967.046039]  [<ffffffff817c6fac>] __schedule+0x39c/0x8e0
  [ 5967.046041]  [<ffffffff817c7a69>] schedule_preempt_disabled+0x29/0x70
  [ 5967.046043]  [<ffffffff810b7bc7>] cpu_startup_entry+0x187/0x3b0
  [ 5967.046045]  [<ffffffff81049117>] start_secondary+0x197/0x1c0
  [ 5967.046046] ---[ end trace 6b6de72fa2c286b6 ]---

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-30-generic 3.19.0-30.34
  ProcVersionSignature: Ubuntu 3.19.0-30.34-generic 3.19.8-ckt6
  Uname: Linux 3.19.0-30-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.5
  Architecture: amd64
   /dev/snd/controlC1:  lacko      1507 F.... pulseaudio
   /dev/snd/controlC0:  lacko      1507 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Mon Oct 12 15:05:50 2015
  InstallationDate: Installed on 2015-10-10 (2 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
   eth0      no wireless extensions.
   lo        no wireless extensions.
  MachineType: System manufacturer System Product Name
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-30-generic.efi.signed root=/dev/mapper/ubuntu_ssd1-ubuntu_root ro rootflags=subvol=@ quiet splash
   linux-restricted-modules-3.19.0-30-generic N/A
   linux-backports-modules-3.19.0-30-generic  N/A
   linux-firmware                             1.143.3
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/14/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0502
  dmi.board.asset.tag: Default string
  dmi.board.name: Z170-A
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Default string
  dmi.chassis.type: 3
  dmi.chassis.vendor: Default string
  dmi.chassis.version: Default string
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0502:bd07/14/2015:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnZ170-A:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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