WARNING: ... intel_display.c:11100 intel_check_page_flip

[Visi Bilius]

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

[Brad Figg (brad-figg)]

This change was made by a bot.

[Visi Bilius (visibilius)]

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...

[penalvch (penalvch)]

Visi Bilius, could you please test the latest upstream kernel available from the very top line at the top of the page from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D (the release names are irrelevant for testing, and please do not test the daily folder)? Install instructions are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds . This will allow additional upstream developers to examine the issue.

If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-X.Y-rcZ

Where X, Y, and Z are numbers corresponding to the kernel version.

If the mainline kernel does not fix the issue, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-X.Y-rcZ

Please note, an error to install the kernel does not fit the criteria of kernel-bug-exists-upstream.

Once testing of the latest upstream kernel is complete, please mark this report's Status as Confirmed. Please let us know your results.

Thank you for your understanding.

[Serhiy (xintx-ua)]

4.3.0-040300rc7-generic:

[ 4178.941355] ------------[ cut here ]------------
[ 4178.941390] WARNING: CPU: 0 PID: 0 at /home/kernel/COD/linux/drivers/gpu/drm/i915/intel_display.c:11293 intel_check_page_flip+0xf4/0x100 [i915]()
[ 4178.941392] Kicking stuck page flip: queued at 249874, now 249879
[ 4178.941393] Modules linked in: binfmt_misc asus_nb_wmi snd_hda_codec_hdmi asus_wmi snd_hda_codec_realtek sparse_keymap snd_hda_codec_generic intel_rapl ip6table_filter snd_hda_intel iosf_mbi ip6_tables x86_pkg_temp_thermal intel_powerclamp xt_owner snd_hda_codec coretemp iptable_filter ip_tables snd_hda_core kvm_intel x_tables snd_hwdep snd_pcm kvm nls_iso8859_1 uvcvideo snd_seq_midi snd_seq_midi_event videobuf2_vmalloc arc4 videobuf2_memops rtl8192ce videobuf2_core rtl_pci v4l2_common rtl8192c_common videodev snd_rawmidi media rtlwifi mac80211 joydev input_leds serio_raw snd_seq snd_seq_device snd_timer mei_me cfg80211 mei snd lpc_ich soundcore shpchp mac_hid overlay parport_pc ppdev lp parport autofs4 drbg ansi_cprng xts gf128mul algif_skcipher af_alg dm_crypt hid_generic usbhid hid crct10dif_pclmul
[ 4178.941438] crc32_pclmul cryptd i915 psmouse ahci libahci i2c_algo_bit drm_kms_helper alx syscopyarea mdio sysfillrect sysimgblt wmi fb_sys_fops drm video fjes
[ 4178.941451] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.3.0-040300rc7-generic #201510260712
[ 4178.941453] Hardware name: ASUSTeK COMPUTER INC. X502CA/X502CA, BIOS X502CA.209 06/09/2013
[ 4178.941455] ffffffffc027c0b8 ffff88011ee03d78 ffffffff813a4be4 ffff88011ee03dc0
[ 4178.941458] ffff88011ee03db0 ffffffff81078052 ffff88003616f000 ffff8800361c0000
[ 4178.941460] ffff88003616f1a8 0000000000000000 ffff880074854b00 ffff88011ee03e10
[ 4178.941463] Call Trace:
[ 4178.941465] <IRQ> [<ffffffff813a4be4>] dump_stack+0x44/0x60
[ 4178.941474] [<ffffffff81078052>] warn_slowpath_common+0x82/0xc0
[ 4178.941476] [<ffffffff810780dc>] warn_slowpath_fmt+0x4c/0x50
[ 4178.941497] [<ffffffffc020a76d>] ? __intel_pageflip_stall_check+0xbd/0x100 [i915]
[ 4178.941515] [<ffffffffc0222974>] intel_check_page_flip+0xf4/0x100 [i915]
[ 4178.941527] [<ffffffffc01b2128>] ironlake_irq_handler+0x288/0xbd0 [i915]
[ 4178.941531] [<ffffffff810d8f10>] ? __note_gp_changes+0x20/0xb0
[ 4178.941535] [<ffffffff810ce7b4>] handle_irq_event_percpu+0x74/0x180
[ 4178.941538] [<ffffffff810ce905>] handle_irq_event+0x45/0x70
[ 4178.941540] [<ffffffff810d18cd>] handle_edge_irq+0x7d/0x150
[ 4178.941543] [<ffffffff8101810a>] handle_irq+0x1a/0x30
[ 4178.941547] [<ffffffff817b5bbb>] do_IRQ+0x4b/0xd0
[ 4178.941549] [<ffffffff817b3842>] common_interrupt+0x82/0x82
[ 4178.941550] <EOI> [<ffffffff81654bd0>] ? cpuidle_enter_state+0x130/0x270
[ 4178.941556] [<ffffffff81654bab>] ? cpuidle_enter_state+0x10b/0x270
[ 4178.941559] [<ffffffff81654d47>] cpuidle_enter+0x17/0x20
[ 4178.941562] [<ffffffff810b84e2>] call_cpuidle+0x32/0x60
[ 4178.941564] [<ffffffff81654d23>] ? cpuidle_select+0x13/0x20
[ 4178.941567] [<ffffffff810b8767>] cpu_startup_entry+0x257/0x310
[ 4178.941570] [<ffffffff817a70dc>] rest_init+0x7c/0x80
[ 4178.941574] [<ffffffff81d52fb9>] start_kernel+0x46f/0x47c
[ 4178.941577] [<ffffffff81d52120>] ? early_idt_handle...

[penalvch (penalvch)]

Serhiy Zahoriya, it will help immensely if you filed a new report with the Ubuntu repository kernel (not mainline/upstream) via a terminal:
ubuntu-bug linux

Please feel free to subscribe me to it.

[Serhiy (xintx-ua)]

Done: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1510723
Should I reconfirm it with the upstream kernel now?

[Visi Bilius (visibilius)]

I tried the 4.3-rc6 version: it did boot, but I saw the screen flickering after any change on it.
I saw these in the logs:

Oct 24 14:32:30 fozzy kernel: [ 1.125622] i915 0000:00:02.0: Direct firmware load for i915/skl_dmc_ver1.bin failed with error -2
Oct 24 14:32:30 fozzy kernel: [ 1.125640] [drm:i915_firmware_load_error_print [i915]] *ERROR* failed to load firmware i915/skl_dmc_ver1.bin (0)

Oct 24 14:32:30 fozzy kernel: [ 1.137979] ------------[ cut here ]------------
Oct 24 14:32:30 fozzy kernel: [ 1.138035] WARNING: CPU: 0 PID: 139 at /home/kernel/COD/linux/drivers/gpu/drm/i915/intel_pm.c:3321 skl_update_pipe_wm+0x71b/0x7c0 [i915]()
Oct 24 14:32:30 fozzy kernel: [ 1.138038] WARN_ON(p->pixel_rate == 0)
Oct 24 14:32:30 fozzy kernel: [ 1.138041] Modules linked in: hid_generic(+) usbhid hid mxm_wmi i915(+) i2c_algo_bit drm_kms_helper syscopyarea e1000e sysfillrect psmouse sysimgblt fb_sys_fops ptp pps_core drm ahci libahci wmi video fjes
Oct 24 14:32:30 fozzy kernel: [ 1.138071] CPU: 0 PID: 139 Comm: systemd-udevd Not tainted 4.3.0-040300rc6-generic #201510182030
Oct 24 14:32:30 fozzy kernel: [ 1.138074] Hardware name: System manufacturer System Product Name/Z170-A, BIOS 1101 10/01/2015
Oct 24 14:32:30 fozzy kernel: [ 1.138077] ffffffffc02551f0 ffff88045ba7b418 ffffffff813a62ed ffff88045ba7b460
Oct 24 14:32:30 fozzy kernel: [ 1.138083] ffff88045ba7b450 ffffffff8107a586 ffff88045ba7b726 ffff880036159a26
Oct 24 14:32:30 fozzy kernel: [ 1.138089] 0000000000000008 ffff88045ba7b730 ffff88045ba7b628 ffff88045ba7b4b0
Oct 24 14:32:30 fozzy kernel: [ 1.138094] Call Trace:
Oct 24 14:32:30 fozzy kernel: [ 1.138105] [<ffffffff813a62ed>] dump_stack+0x44/0x57
Oct 24 14:32:30 fozzy kernel: [ 1.138111] [<ffffffff8107a586>] warn_slowpath_common+0x86/0xc0
Oct 24 14:32:30 fozzy kernel: [ 1.138116] [<ffffffff8107a60c>] warn_slowpath_fmt+0x4c/0x50
Oct 24 14:32:30 fozzy kernel: [ 1.138162] [<ffffffffc019f28b>] skl_update_pipe_wm+0x71b/0x7c0 [i915]
Oct 24 14:32:30 fozzy kernel: [ 1.138205] [<ffffffffc019f870>] skl_update_wm+0x190/0x810 [i915]
Oct 24 14:32:30 fozzy kernel: [ 1.138212] [<ffffffff814323ce>] ? acpi_evaluate_integer+0x34/0x52
Oct 24 14:32:30 fozzy kernel: [ 1.138218] [<ffffffff813ba7de>] ? find_next_zero_bit+0x1e/0x20
Oct 24 14:32:30 fozzy kernel: [ 1.138225] [<ffffffff813a7755>] ? idr_get_empty_slot+0x165/0x3a0
Oct 24 14:32:30 fozzy kernel: [ 1.138266] [<ffffffffc019ff84>] skl_update_sprite_wm+0x94/0x100 [i915]
Oct 24 14:32:30 fozzy kernel: [ 1.138305] [<ffffffffc01a0f42>] intel_update_sprite_watermarks+0x32/0x40 [i915]
Oct 24 14:32:30 fozzy kernel: [ 1.138370] [<ffffffffc020e60f>] skl_disable_plane+0xbf/0xd0 [i915]
Oct 24 14:32:30 fozzy kernel: [ 1.138435] [<ffffffffc0203493>] intel_modeset_setup_hw_state+0x3b3/0xdd0 [i915]
Oct 24 14:32:30 fozzy kernel: [ 1.138497] [<ffffffffc0205a3a>] intel_modeset_init+0x9aa/0x1240 [i915]
Oct 24 14:32:30 fozzy kernel: [ 1.138517] [<ffffffffc0049eaa>] ? drm_irq_install+0xba/0x170 [drm]
Oct 24 14:32:30 fozzy kernel: [ 1.138588] [<ffffffffc023b0bf>] i915_driver_load+0x7cf/0xe90 [i915]
Oct 24 14:32:30 fozzy kernel: [ ...

[Visi Bilius (visibilius)]

I just upgraded to 15.10. The provided kernel, 4.2.0-16-generic, works fine so far. If the warning happens to come, it must come very rarely.

[Visi Bilius (visibilius)]

Unfortunately, I can see this warning with the 4.2.0-16 kernel, as well:

Oct 30 07:56:24 fozzy kernel: [ 1314.912537] WARNING: CPU: 0 PID: 0 at /build/linux-AxjFAn/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:11100 intel_check_page_flip+0xfc/0x110 [i915]()
Oct 30 07:56:24 fozzy kernel: [ 1314.912538] Kicking stuck page flip: queued at 78664, now 78668
Oct 30 07:56:24 fozzy kernel: [ 1314.912539] Modules linked in: binfmt_misc dm_crypt drbg ansi_cprng algif_skcipher af_alg uvcvideo
videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common snd_usb_audio videodev snd_usbmidi_lib hid_multitouch media snd_hda_co
dec_hdmi nls_iso8859_1 snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel eeepc_wmi snd_hda_codec asus_wmi sparse_keymap snd_
hda_core snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp kvm_in
tel snd_rawmidi kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 snd_seq lrw gf128mul glue_helper ablk_h
elper cryptd snd_seq_device snd_timer serio_raw joydev snd soundcore mei_me shpchp mei 8250_fintek acpi_als kfifo_buf industrialio m
ac_hid acpi_pad ip6t_REJECT nf_reject_ipv6 intel_lpss_acpi intel_lpss nf_log_ipv6 xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt
_REJECT nf_reject_ipv4 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_f
ilter ip_tables x_tables parport_pc ppdev lp parport autofs4 btrfs xor raid6_pq hid_generic usbhid mxm_wmi i915 psmouse e1000e i2c_a
lgo_bit drm_kms_helper ptp pps_core drm ahci libahci wmi video pinctrl_sunrisepoint pinctrl_intel i2c_hid hid
Oct 30 07:56:24 fozzy kernel: [ 1314.912594] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.2.0-16-generic #19-Ubuntu
Oct 30 07:56:24 fozzy kernel: [ 1314.912595] Hardware name: System manufacturer System Product Name/Z170-A, BIOS 1101 10/01/2015
Oct 30 07:56:24 fozzy kernel: [ 1314.912596] 0000000000000000 cc4f269da8d07096 ffff880473c03d48 ffffffff817e8c09
Oct 30 07:56:24 fozzy kernel: [ 1314.912598] 0000000000000000 ffff880473c03da0 ffff880473c03d88 ffffffff8107b3c6
Oct 30 07:56:24 fozzy kernel: [ 1314.912599] ffff880473c03db8 ffff88045b2e6000 ffff880460046000 ffff88045b2e61a8
Oct 30 07:56:24 fozzy kernel: [ 1314.912601] Call Trace:
Oct 30 07:56:24 fozzy kernel: [ 1314.912602] <IRQ> [<ffffffff817e8c09>] dump_stack+0x45/0x57
Oct 30 07:56:24 fozzy kernel: [ 1314.912607] [<ffffffff8107b3c6>] warn_slowpath_common+0x86/0xc0
Oct 30 07:56:24 fozzy kernel: [ 1314.912609] [<ffffffff8107b455>] warn_slowpath_fmt+0x55/0x70
Oct 30 07:56:24 fozzy kernel: [ 1314.912620] [<ffffffffc0223b3c>] intel_check_page_flip+0xfc/0x110 [i915]
Oct 30 07:56:24 fozzy kernel: [ 1314.912629] [<ffffffffc01ec5e5>] gen8_irq_handler+0x325/0x590 [i915]
Oct 30 07:56:24 fozzy kernel: [ 1314.912632] [<ffffffff810d41d4>] handle_irq_event_percpu+0x74/0x180
Oct 30 07:56:24 fozzy kernel: [ 1314.912633] [<ffffffff810d4329>] handle_irq_event+0x49/0x70
Oct 30 07:56:24 fozzy kernel: [ 1314.912634] [<ffffffff810d76a1...

[penalvch (penalvch)]

Visi Bilius, could you please test the latest mainline kernel (4.3, not 4.3-rcX) and advise to the results?

[Serhiy (xintx-ua)]

Linux x502 4.3.0-040300-generic #201511020949 SMP Mon Nov 2 14:50:44 UTC 2015 x86_64

[ 3451.451953] ------------[ cut here ]------------
[ 3451.451993] WARNING: CPU: 0 PID: 0 at /home/kernel/COD/linux/drivers/gpu/drm/i915/intel_display.c:11293 intel_check_page_flip+0xf4/0x100 [i915]()
[ 3451.451995] Kicking stuck page flip: queued at 206369, now 206374
[ 3451.451997] Modules linked in: binfmt_misc ip6table_filter ip6_tables xt_owner iptable_filter ip_tables x_tables nls_iso8859_1 intel_rapl iosf_mbi asus_nb_wmi x86_pkg_temp_thermal asus_wmi intel_powerclamp sparse_keymap uvcvideo coretemp snd_hda_codec_hdmi videobuf2_vmalloc snd_hda_codec_realtek snd_hda_codec_generic kvm_intel snd_hda_intel videobuf2_memops snd_hda_codec videobuf2_core snd_hda_core v4l2_common videodev snd_hwdep media kvm snd_pcm snd_seq_midi snd_seq_midi_event arc4 rtl8192ce snd_rawmidi rtl_pci rtl8192c_common rtlwifi snd_seq snd_seq_device mac80211 snd_timer input_leds joydev serio_raw cfg80211 snd mei_me soundcore shpchp mei lpc_ich mac_hid overlay parport_pc ppdev lp parport autofs4 jitterentropy_rng drbg ansi_cprng xts gf128mul algif_skcipher af_alg dm_crypt crct10dif_pclmul
[ 3451.452040] crc32_pclmul cryptd i915 psmouse i2c_algo_bit drm_kms_helper alx syscopyarea mdio sysfillrect sysimgblt fb_sys_fops ahci drm libahci wmi video fjes
[ 3451.452053] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.3.0-040300-generic #201511020949
[ 3451.452054] Hardware name: ASUSTeK COMPUTER INC. X502CA/X502CA, BIOS X502CA.209 06/09/2013
[ 3451.452056] ffffffffc0217090 ffff88011ee03d78 ffffffff813a4c94 ffff88011ee03dc0
[ 3451.452059] ffff88011ee03db0 ffffffff81078052 ffff880035ec6800 ffff8801196ab000
[ 3451.452062] ffff880035ec69a8 0000000000000000 ffff8800baf13780 ffff88011ee03e10
[ 3451.452064] Call Trace:
[ 3451.452066] <IRQ> [<ffffffff813a4c94>] dump_stack+0x44/0x60
[ 3451.452075] [<ffffffff81078052>] warn_slowpath_common+0x82/0xc0
[ 3451.452078] [<ffffffff810780dc>] warn_slowpath_fmt+0x4c/0x50
[ 3451.452099] [<ffffffffc01a576d>] ? __intel_pageflip_stall_check+0xbd/0x100 [i915]
[ 3451.452118] [<ffffffffc01bd974>] intel_check_page_flip+0xf4/0x100 [i915]
[ 3451.452129] [<ffffffffc014d128>] ironlake_irq_handler+0x288/0xbd0 [i915]
[ 3451.452133] [<ffffffff810a012d>] ? ttwu_do_activate.constprop.88+0x5d/0x70
[ 3451.452136] [<ffffffff810a09d7>] ? try_to_wake_up+0x47/0x360
[ 3451.452140] [<ffffffff810ce7b4>] handle_irq_event_percpu+0x74/0x180
[ 3451.452143] [<ffffffff810ce905>] handle_irq_event+0x45/0x70
[ 3451.452146] [<ffffffff810d18cd>] handle_edge_irq+0x7d/0x150
[ 3451.452148] [<ffffffff8101810a>] handle_irq+0x1a/0x30
[ 3451.452152] [<ffffffff817b5e7b>] do_IRQ+0x4b/0xd0
[ 3451.452154] [<ffffffff817b3b02>] common_interrupt+0x82/0x82
[ 3451.452155] <EOI> [<ffffffff81654ca0>] ? cpuidle_enter_state+0x130/0x270
[ 3451.452162] [<ffffffff81654c7b>] ? cpuidle_enter_state+0x10b/0x270
[ 3451.452164] [<ffffffff81654e17>] cpuidle_enter+0x17/0x20
[ 3451.452167] [<ffffffff810b84e2>] call_cpuidle+0x32/0x60
[ 3451.452170] [<ffffffff81654df3>] ? cpuidle_select+0x13/0x20
[ 3451.452172] [<ffffffff810b8767>] cpu_startup_entry+0x257/0x310
[ 3451.452175] [<ffffffff817a73bc>] rest_ini...

[Serhiy (xintx-ua)]

oh, posted to the wrong page, sorry, revert the changes if needed.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]