I have updated the BIOS. Thank you for the help. sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
# SMBIOS implementations newer than version 2.8 are not # fully supported by this version of dmidecode. 1101 # SMBIOS implementations newer than version 2.8 are not # fully supported by this version of dmidecode. 10/01/2015 I can still see the warning in the logs: Oct 16 13:26:53 fozzy kernel: [ 6733.169262] ------------[ cut here ]------------ Oct 16 13:26:53 fozzy kernel: [ 6733.169300] WARNING: CPU: 0 PID: 0 at /build/linux-qOmAV7/linux-3.19.0/ubuntu/i915/intel_display.c: 11100 intel_check_page_flip+0x11c/0x130 [i915_bpo]() Oct 16 13:26:53 fozzy kernel: [ 6733.169301] Kicking stuck page flip: queued at 382627, now 382631 Oct 16 13:26:53 fozzy kernel: [ 6733.169302] Modules linked in: cfg80211 binfmt_misc dm_crypt nls_iso8859_1 uvcvideo videobuf2_vmall oc videobuf2_memops videobuf2_core v4l2_common videodev snd_usb_audio media hid_multitouch snd_usbmidi_lib joydev hid_generic usbhid snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd _seq_midi snd_seq_midi_event snd_rawmidi eeepc_wmi snd_seq asus_wmi sparse_keymap snd_seq_device snd_timer x86_pkg_temp_thermal core temp kvm_intel snd kvm crct10dif_pclmul crc32_pclmul ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 ghash_clmulni_intel xt_hl aesni_intel i9 15_bpo aes_x86_64 soundcore lrw gf128mul glue_helper ablk_helper cryptd serio_raw ip6t_rt intel_ips drm_kms_helper drm nf_conntrack_ ipv6 nf_defrag_ipv6 i2c_algo_bit 8250_fintek i2c_hid ipt_REJECT nf_reject_ipv4 hid shpchp mac_hid acpi_pad nf_log_ipv4 nf_log_common xt_LOG 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 par port autofs4 btrfs xor raid6_pq mxm_wmi e1000e psmouse ptp pps_core ahci libahci wmi video Oct 16 13:26:53 fozzy kernel: [ 6733.169337] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.19.0-30-generic #34-Ubuntu Oct 16 13:26:53 fozzy kernel: [ 6733.169338] Hardware name: System manufacturer System Product Name/Z170-A, BIOS 1101 10/01/2015 Oct 16 13:26:53 fozzy kernel: [ 6733.169339] ffffffffc07f3138 ffff880473c03d68 ffffffff817c4d5f 0000000000000007 Oct 16 13:26:53 fozzy kernel: [ 6733.169341] ffff880473c03db8 ffff880473c03da8 ffffffff81076a8a ffff880473c03db8 Oct 16 13:26:53 fozzy kernel: [ 6733.169342] ffff88045d711800 ffff88046043a000 ffff88045d7119a8 0000000000000000 Oct 16 13:26:53 fozzy kernel: [ 6733.169344] Call Trace: Oct 16 13:26:53 fozzy kernel: [ 6733.169345] <IRQ> [<ffffffff817c4d5f>] dump_stack+0x45/0x57 Oct 16 13:26:53 fozzy kernel: [ 6733.169351] [<ffffffff81076a8a>] warn_slowpath_common+0x8a/0xc0 Oct 16 13:26:53 fozzy kernel: [ 6733.169353] [<ffffffff81076b06>] warn_slowpath_fmt+0x46/0x50 Oct 16 13:26:53 fozzy kernel: [ 6733.169366] [<ffffffffc07982ec>] intel_check_page_flip+0x11c/0x130 [i915_bpo] Oct 16 13:26:53 fozzy kernel: [ 6733.169376] [<ffffffffc075f21e>] gen8_irq_handler+0x37e/0x5d0 [i915_bpo] Oct 16 13:26:53 fozzy kernel: [ 6733.169378] [<ffffffff810e030c>] ? __hrtimer_start_range_ns+0x2dc/0x410 Oct 16 13:26:53 fozzy kernel: [ 6733.169381] [<ffffffff810cea87>] handle_irq_event_percpu+0x77/0x1a0 Oct 16 13:26:53 fozzy kernel: [ 6733.169382] [<ffffffff810cebf1>] handle_irq_event+0x41/0x70 Oct 16 13:26:53 fozzy kernel: [ 6733.169385] [<ffffffff810d1c5e>] handle_edge_irq+0x6e/0x120 Oct 16 13:26:53 fozzy kernel: [ 6733.169386] [<ffffffff81017772>] handle_irq+0x22/0x40 Oct 16 13:26:53 fozzy kernel: [ 6733.169389] [<ffffffff817cee1f>] do_IRQ+0x4f/0xf0 Oct 16 13:26:53 fozzy kernel: [ 6733.169390] [<ffffffff817ccc2d>] common_interrupt+0x6d/0x6d Oct 16 13:26:53 fozzy kernel: [ 6733.169391] <EOI> [<ffffffff81666525>] ? cpuidle_enter_state+0x65/0x160 Oct 16 13:26:53 fozzy kernel: [ 6733.169394] [<ffffffff81666511>] ? cpuidle_enter_state+0x51/0x160 Oct 16 13:26:53 fozzy kernel: [ 6733.169396] [<ffffffff81666707>] cpuidle_enter+0x17/0x20 Oct 16 13:26:53 fozzy kernel: [ 6733.169398] [<ffffffff810b7d51>] cpu_startup_entry+0x311/0x3b0 Oct 16 13:26:53 fozzy kernel: [ 6733.169400] [<ffffffff817b98b7>] rest_init+0x77/0x80 Oct 16 13:26:53 fozzy kernel: [ 6733.169403] [<ffffffff81d4cfd3>] start_kernel+0x487/0x494 Oct 16 13:26:53 fozzy kernel: [ 6733.169405] [<ffffffff81d4c120>] ? early_idt_handler_array+0x120/0x120 Oct 16 13:26:53 fozzy kernel: [ 6733.169407] [<ffffffff81d4c4d7>] x86_64_start_reservations+0x2a/0x2c Oct 16 13:26:53 fozzy kernel: [ 6733.169409] [<ffffffff81d4c61c>] x86_64_start_kernel+0x143/0x152 Oct 16 13:26:53 fozzy kernel: [ 6733.169410] ---[ end trace 8305d2a3e3326e38 ]--- There is another message, too. Perhaps relevant. Oct 17 11:16:52 fozzy kernel: [67722.891484] [drm:i915_hangcheck_elapsed [i915_bpo]] *ERROR* Hangcheck timer elapsed... render ring idle I am changing the status to Confirmed, as requested. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1505242 Title: WARNING: ... intel_display.c:11100 intel_check_page_flip Status in linux package in Ubuntu: Confirmed 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 AudioDevicesInUse: USER PID ACCESS COMMAND /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) IwConfig: 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 RelatedPackageVersions: 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 RfKill: 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1505242/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp