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Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2015-02-10T05:53:03+00:00 Lei-a-liu wrote: Created attachment 113297 dmesg ==System Environment== -------------------------- Bios : V68 Regression: No. First test on this platform. boot with DP or HDMI monitor Non-working platforms: SKLY ==kernel== -------------------------- -nightly: b4442ee4e150506cebeee72249efc566c5f14bbe (fails) drm-intel-nightly: 2015y-02m-06d-09h-25m-00s UTC integration manifest ==Bug detailed description== ----------------------------- testdisplay -a cause Call Trace Detail: [ 1242.330637] ------------[ cut here ]------------ [ 1242.330681] WARNING: CPU: 0 PID: 1361 at drivers/gpu/drm/i915/intel_pm.c:3084 skl_update_other_pipe_wm+0xe3/0x156 [i915]() [ 1242.330694] WARN_ON(!wm_changed) [ 1242.330697] Modules linked in: dm_mod snd_hda_codec_hdmi ppdev snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel pcspkr snd_hda_controller snd_hda_codec snd_ hwdep i2c_i801 snd_pcm snd_timer snd soundcore wmi battery parport_pc parport ac acpi_cpufreq i915 button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea [ 1242.330728] CPU: 0 PID: 1361 Comm: kworker/0:2 Not tainted 3.19.0-rc7_drm-intel-nightly_b4442e_20150208+ #198 [ 1242.330732] Hardware name: Intel Corporation Skylake Client platform/Skylake Y LPDDR3 RVP3, BIOS SKLSE2R1.86C.B068.R00.1501090908 01/09/2015 [ 1242.330757] Workqueue: events i915_hotplug_work_func [i915] [ 1242.330760] 0000000000000000 0000000000000009 ffffffff8179a69b ffff88009b95b808 [ 1242.330764] ffffffff8103bdec ffff880143e7991c ffffffffa008d5f4 ffff88009bba1000 [ 1242.330768] ffff880143e79918 ffff88009b95b8d0 ffff880148813800 ffff880143ed6000 [ 1242.330773] Call Trace: [ 1242.330783] [<ffffffff8179a69b>] ? dump_stack+0x40/0x50 [ 1242.330791] [<ffffffff8103bdec>] ? warn_slowpath_common+0x98/0xb0 [ 1242.330806] [<ffffffffa008d5f4>] ? skl_update_other_pipe_wm+0xe3/0x156 [i915] [ 1242.330812] [<ffffffff8103be9c>] ? warn_slowpath_fmt+0x45/0x4a [ 1242.330828] [<ffffffffa008d5f4>] ? skl_update_other_pipe_wm+0xe3/0x156 [i915] [ 1242.330844] [<ffffffffa008d7a6>] ? skl_update_wm+0x13f/0x5a8 [i915] [ 1242.330851] [<ffffffff81065284>] ? add_wait_queue+0x3c/0x3c [ 1242.330877] [<ffffffffa00db2c8>] ? haswell_crtc_enable+0x580/0x9b2 [i915] [ 1242.330900] [<ffffffffa00d9878>] ? __intel_set_mode+0x7e5/0x895 [i915] [ 1242.330923] [<ffffffffa00df2d3>] ? intel_crtc_set_config+0x7d0/0xbb9 [i915] [ 1242.330936] [<ffffffffa0024a11>] ? drm_atomic_state_clear+0xec/0x10d [drm] [ 1242.330952] [<ffffffffa001804a>] ? drm_mode_set_config_internal+0x4e/0xd2 [drm] [ 1242.330960] [<ffffffffa00652e2>] ? restore_fbdev_mode+0xa8/0xc3 [drm_kms_helper] [ 1242.330968] [<ffffffffa00665ff>] ? drm_fb_helper_restore_fbdev_mode_unlocked+0x1f/0x56 [drm_kms_helper] [ 1242.330975] [<ffffffffa0066664>] ? drm_fb_helper_set_par+0x2e/0x33 [drm_kms_helper] [ 1242.330982] [<ffffffffa00665da>] ? drm_fb_helper_hotplug_event+0xa2/0xa8 [drm_kms_helper] [ 1242.330989] [<ffffffff8104d128>] ? process_one_work+0x1ad/0x31a [ 1242.330995] [<ffffffff8104d4ef>] ? worker_thread+0x235/0x330 [ 1242.331001] [<ffffffff8104d2ba>] ? process_scheduled_works+0x25/0x25 [ 1242.331006] [<ffffffff81050dee>] ? kthread+0xc5/0xcd [ 1242.331011] [<ffffffff81050d29>] ? kthread_freezable_should_stop+0x40/0x40 [ 1242.331029] [<ffffffff8179ffec>] ? ret_from_fork+0x7c/0xb0 [ 1242.331033] [<ffffffff81050d29>] ? kthread_freezable_should_stop+0x40/0x40 [ 1242.331037] ---[ end trace b15a6acb1a667d5d ]--- [ 1242.331071] [drm:skl_wm_flush_pipe] flush pipe A (pass 1) ==Reproduce steps== ---------------------------- 1. boot with DP or HDMI monitor 2. ./testdisplay -a 3. check dmesg Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/0 ------------------------------------------------------------------------ On 2015-02-10T11:44:20+00:00 Jani-nikula wrote: *** Bug 89056 has been marked as a duplicate of this bug. *** Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/1 ------------------------------------------------------------------------ On 2015-02-10T11:45:02+00:00 Jani-nikula wrote: (In reply to Jani Nikula from comment #1) > *** Bug 89056 has been marked as a duplicate of this bug. *** There, the cause is DP/HDMI hotplug, but the end result is the same. Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/2 ------------------------------------------------------------------------ On 2015-03-10T16:37:55+00:00 Damien Lespiau wrote: Just to triage the bug: this hits the (maybe over eager?) warnings: WARN_ON(!wm_changed). One would need to understand why the WM values have changed and why I didn't expected that to happen there. Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/3 ------------------------------------------------------------------------ On 2015-04-14T05:35:49+00:00 Lei-a-liu wrote: This issue still exists on 04-11-testing kernel. Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/4 ------------------------------------------------------------------------ On 2015-04-14T14:41:42+00:00 Lei-a-liu wrote: (In reply to liulei from comment #4) > This issue still exists on 04-11-testing kernel. update kernel version uname: drm-intel-testing_b253c7_20150411_ git tag: drm-intel-testing-2015-04-10 drm-intel-nightly: 2015y-04m-10d-06h-57m-17s UTC integration manifest Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/5 ------------------------------------------------------------------------ On 2015-04-28T08:15:20+00:00 Timo Aaltonen wrote: seeing the same with drm-intel-next-2015-04-23, and there's also noticeable flicker to black on the top half of the screens during DPMS fade out Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/6 ------------------------------------------------------------------------ On 2015-04-29T01:19:22+00:00 Lei-a-liu wrote: This issue still exists on latest testing uname :4.0.0_drm-intel-testing_43d9c2_20150424 git tag:drm-intel-testing-2015-04-23 drm-intel-nightly: 2015y-04m-23d-19h-58m-37s UTC integration manifest Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/7 ------------------------------------------------------------------------ On 2015-05-13T10:44:41+00:00 Bin-a-xu wrote: Tested on SKLY03 with the testing kernel drm-intel-testing-2015-05-08. this problem still exists. Output: [ 7306.872817] ------------[ cut here ]------------ [ 7306.872852] WARNING: CPU: 2 PID: 1004 at drivers/gpu/drm/i915/intel_pm.c:3346 skl_update_other_pipe_wm+0x10b/0x148 [i915]() [ 7306.872855] WARN_ON(!wm_changed) [ 7306.872874] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm ppdev serio_raw pcspkr snd_timer i2c_i801 snd soundcore wmi battery parport_pc parport ac acpi_cpufreq i915 button video drm_kms_helper drm [ 7306.872880] CPU: 2 PID: 1004 Comm: kworker/2:1 Tainted: G U W 4.1.0-rc2_drm-intel-testing-2015-05-08+ #2 [ 7306.872882] Hardware name: Intel Corporation Skylake Client platform/Skylake Y LPDDR3 RVP3, BIOS SKLSE2R1.R00.B082.B00.1504240146 04/24/2015 [ 7306.872891] Workqueue: events console_callback [ 7306.872896] 0000000000000000 0000000000000009 ffffffff817a66cc ffff88016864f748 [ 7306.872899] ffffffff8103ebde ffff88016864f91a ffffffffa0083030 ffff88007bb10000 [ 7306.872902] ffff88016864f86c ffff880163628000 ffff880163b7c000 ffff88007bb1955c [ 7306.872903] Call Trace: [ 7306.872913] [<ffffffff817a66cc>] ? dump_stack+0x40/0x50 [ 7306.872918] [<ffffffff8103ebde>] ? warn_slowpath_common+0x98/0xb0 [ 7306.872941] [<ffffffffa0083030>] ? skl_update_other_pipe_wm+0x10b/0x148 [i915] [ 7306.872944] [<ffffffff8103ec3b>] ? warn_slowpath_fmt+0x45/0x4a [ 7306.872968] [<ffffffffa0083030>] ? skl_update_other_pipe_wm+0x10b/0x148 [i915] [ 7306.872992] [<ffffffffa00831a2>] ? skl_update_wm+0x135/0x5c5 [i915] [ 7306.872996] [<ffffffff81073917>] ? log_store+0x14f/0x196 [ 7306.873000] [<ffffffff8106a278>] ? down_trylock+0x20/0x29 [ 7306.873003] [<ffffffff810736ec>] ? console_trylock+0x10/0x55 [ 7306.873044] [<ffffffffa00d3485>] ? haswell_crtc_disable+0x271/0x2bc [i915] [ 7306.873079] [<ffffffffa00d4fa1>] ? intel_crtc_control+0x97/0xd2 [i915] [ 7306.873111] [<ffffffffa00d5020>] ? intel_crtc_update_dpms+0x44/0x52 [i915] [ 7306.873144] [<ffffffffa00d99b5>] ? intel_connector_dpms+0x3f/0x4a [i915] [ 7306.873153] [<ffffffffa0059d28>] ? drm_fb_helper_dpms.isra.5+0x8b/0xcc [drm_kms_helper] [ 7306.873160] [<ffffffffa0059d9b>] ? drm_fb_helper_blank+0x32/0x39 [drm_kms_helper] [ 7306.873191] [<ffffffffa00e6593>] ? intel_fbdev_blank+0x11/0x54 [i915] [ 7306.873198] [<ffffffff813862bc>] ? fb_blank+0x53/0x86 [ 7306.873203] [<ffffffff8137f22e>] ? fbcon_blank+0x172/0x228 [ 7306.873208] [<ffffffff81381ebc>] ? bit_cursor+0x459/0x486 [ 7306.873214] [<ffffffff8108016c>] ? lock_timer_base.isra.37+0x22/0x46 [ 7306.873220] [<ffffffff81080ace>] ? try_to_del_timer_sync+0x46/0x51 [ 7306.873224] [<ffffffff813d46f3>] ? do_blank_screen+0x187/0x251 [ 7306.873260] [<ffffffff813d6a1e>] ? console_callback+0xc6/0xed [ 7306.873264] [<ffffffff8104f985>] ? process_one_work+0x1b2/0x31d [ 7306.873268] [<ffffffff8105026f>] ? worker_thread+0x265/0x351 [ 7306.873272] [<ffffffff8105000a>] ? cancel_delayed_work_sync+0xa/0xa [ 7306.873276] [<ffffffff81053ee1>] ? kthread+0xce/0xd6 [ 7306.873281] [<ffffffff81053e13>] ? kthread_create_on_node+0x162/0x162 [ 7306.873285] [<ffffffff817ac5d2>] ? ret_from_fork+0x42/0x70 [ 7306.873290] [<ffffffff81053e13>] ? kthread_create_on_node+0x162/0x162 [ 7306.873293] ---[ end trace 8103221c8aae6cbc ]--- Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/8 ------------------------------------------------------------------------ On 2015-05-25T08:34:04+00:00 Yex-tian wrote: Tested on SKLY03 with the testing kernel drm-intel-testing-2015-05-22. this problem still exists. output: ------------------ [ 1319.346675] ------------[ cut here ]------------ [ 1319.346707] WARNING: CPU: 0 PID: 5404 at drivers/gpu/drm/i915/intel_pm.c:3391 skl_update_other_pipe_wm+0x10b/0x148 [i915]() [ 1319.346712] WARN_ON(!wm_changed) [ 1319.346732] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic ppdev snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm serio_raw pcspkr snd_timer snd i2c_i801 soundcore wmi battery parport_pc parport ac acpi_cpufreq i915 button video drm_kms_helper drm [ 1319.346738] CPU: 0 PID: 5404 Comm: testdisplay Tainted: G U W 4.1.0-rc4_drm-intel-testing-2015-05-22+ #187 [ 1319.346740] Hardware name: Intel Corporation Skylake Client platform/Skylake Y LPDDR3 RVP3, BIOS SKLSE2R1.R00.B082.B00.1504240146 04/24/2015 [ 1319.346745] 0000000000000000 0000000000000009 ffffffff817a6ebc ffff880004b074e8 [ 1319.346749] ffffffff8103ebde ffff8801634f9590 ffffffffa0085216 ffff880004b0760c [ 1319.346752] ffff880004b0760c ffff880163bb4000 ffff880163be9000 ffff8801634f958c [ 1319.346753] Call Trace: [ 1319.346764] [<ffffffff817a6ebc>] ? dump_stack+0x40/0x50 [ 1319.346769] [<ffffffff8103ebde>] ? warn_slowpath_common+0x98/0xb0 [ 1319.346792] [<ffffffffa0085216>] ? skl_update_other_pipe_wm+0x10b/0x148 [i915] [ 1319.346796] [<ffffffff8103ec3b>] ? warn_slowpath_fmt+0x45/0x4a [ 1319.346819] [<ffffffffa0085216>] ? skl_update_other_pipe_wm+0x10b/0x148 [i915] [ 1319.346842] [<ffffffffa0085388>] ? skl_update_wm+0x135/0x5f9 [i915] [ 1319.346846] [<ffffffff8106a228>] ? down_trylock+0x20/0x29 [ 1319.346850] [<ffffffff8107369c>] ? console_trylock+0x10/0x55 [ 1319.346854] [<ffffffff81074e31>] ? vprintk_emit+0x30f/0x36f [ 1319.346889] [<ffffffffa00d8a5c>] ? haswell_crtc_enable+0x52c/0x94c [i915] [ 1319.346922] [<ffffffffa00d65f0>] ? __intel_set_mode+0x900/0x93a [i915] [ 1319.346953] [<ffffffffa00dbe46>] ? intel_crtc_set_config+0x3f2/0x53d [i915] [ 1319.346967] [<ffffffffa00184db>] ? drm_modeset_lock+0x4e/0xa3 [drm] [ 1319.346988] [<ffffffffa000c229>] ? drm_mode_set_config_internal+0x4e/0xd2 [drm] [ 1319.346996] [<ffffffffa005b13d>] ? restore_fbdev_mode+0xac/0xc3 [drm_kms_helper] [ 1319.347011] [<ffffffffa005c93e>] ? drm_fb_helper_restore_fbdev_mode_unlocked+0x1e/0x54 [drm_kms_helper] [ 1319.347018] [<ffffffffa005c9a2>] ? drm_fb_helper_set_par+0x2e/0x32 [drm_kms_helper] [ 1319.347047] [<ffffffffa00e86eb>] ? intel_fbdev_set_par+0x11/0x55 [i915] [ 1319.347053] [<ffffffff813450ad>] ? number.isra.13+0x11f/0x215 [ 1319.347060] [<ffffffff813867f5>] ? fb_set_var+0x250/0x33b [ 1319.347064] [<ffffffff810e939c>] ? shmem_undo_range+0x455/0x46b [ 1319.347069] [<ffffffff81345d1a>] ? vsnprintf+0x83/0x3b9 [ 1319.347084] [<ffffffff8137f3a1>] ? fbcon_blank+0x75/0x228 [ 1319.347089] [<ffffffff810df8b0>] ? file_ra_state_init+0xc/0x1d [ 1319.347095] [<ffffffff813d6291>] ? do_unblank_screen+0xef/0x168 [ 1319.347100] [<ffffffff813ce981>] ? vt_ioctl+0x4de/0xf59 [ 1319.347106] [<ffffffff813c5f68>] ? tty_ioctl+0x954/0x9ba [ 1319.347109] [<ffffffff811217f3>] ? do_filp_open+0x2b/0x6f [ 1319.347114] [<ffffffff811234f6>] ? do_vfs_ioctl+0x360/0x424 [ 1319.347117] [<ffffffff8112ae18>] ? __fd_install+0x15/0x40 [ 1319.347121] [<ffffffff81123603>] ? SyS_ioctl+0x49/0x7a [ 1319.347125] [<ffffffff817aca17>] ? system_call_fastpath+0x12/0x6a [ 1319.347129] ---[ end trace 76ca6edff58a8716 ]--- [ 1319.347134] ------------[ cut here ]------------ Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/9 ------------------------------------------------------------------------ On 2015-05-25T08:48:54+00:00 Yex-tian wrote: start X and kill X also causes Call Trace. Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/10 ------------------------------------------------------------------------ On 2015-06-03T20:35:39+00:00 Jim-bish wrote: I am seeing the same issue in the dmesg on skl desktop system with hdmi and dp connected. I also get occasional screen flicker when transitioning across screens or windows. build is ubuntu 15.04 with tot drm-nightly from 6/1, latest drm and latest mesa. Jim Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/11 ------------------------------------------------------------------------ On 2015-08-16T19:19:17+00:00 Januszmk6 wrote: is there any workarround for this? as someone commented on my issue https://bugs.freedesktop.org/show_bug.cgi?id=91587 its probably the same issue, and os is not usable with intel gpu Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/12 ------------------------------------------------------------------------ On 2015-11-10T08:30:06+00:00 Kai Iskratsch wrote: Created attachment 119531 kernel log OpenSUSE with kernel from OBS Kernel:linux-next repo drm.debug=0x0e on my skylake system i seem to get these warnings a lot too. Also when using KDE i get display corruption, and hard system crashes (no network login possible anymore, and nothing written to logs) Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/13 ------------------------------------------------------------------------ On 2015-11-16T19:05:05+00:00 Me+bugzilla wrote: I can confirm this, with the following setup: - Linux 4.3.0 (vanilla source tree, built with Debian's make-kpkg, kernel config derived from Debian distro kernels) - Debian testing (stretch), amd64 - Intel(R) Core(TM) i5-6600K CPU @ 3.50GHz - Dual-monitor setup, one connected directly to DVI, the other attached via DisplayPort<->DVI adapter It seems I can reliably trigger the WARN_ON(!wm_changed) condition by switching between the monitors. Besides the backtrace-spam in my log, the system seems to run fine, no hangs, crashes, or the like (running Xorg from stretch with i3-wm). I notice scrolling-related artifacts in conkeror, but that may be a totally unrelated issue. Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/14 ------------------------------------------------------------------------ On 2015-11-21T19:14:22+00:00 Sverd Johnsen wrote: Looks like same thing here. Intel(R) Core(TM) i5-6600K CPU @ 3.50GHz Linux foobar 4.3.0-1-ARCH #1 SMP PREEMPT Mon Nov 2 16:52:35 CET 2015 x86_64 GNU/Linux [ 4087.204525] ------------[ cut here ]------------ [ 4087.204554] WARNING: CPU: 0 PID: 414 at drivers/gpu/drm/i915/intel_pm.c:3668 skl_update_other_pipe_wm+0x1e7/0x1f0 [i915]() [ 4087.204558] WARN_ON(!wm_changed) [ 4087.204561] Modules linked in: [ 4087.204565] nf_log_ipv6 nf_log_ipv4 nf_log_common nf_conntrack_ipv6 nf_defrag_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nft_ct nf_conntrack nft_log nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_counter nft_meta nft_hash nft_rbtree nf_tables_inet nf_tables_ipv6 nf_tables_ipv4 nf_tables nfnetlink dm_crypt sha256_ssse3 sha256_generic hmac drbg ansi_cprng algif_skcipher af_alg intel_rapl snd_hda_codec_hdmi dm_mod snd_hda_codec_realtek snd_hda_codec_generic iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul crc32c_intel aesni_intel aes_x86_64 lrw gf128mul snd_hda_intel glue_helper ablk_helper snd_hda_codec cryptd hci_uart snd_hda_core btbcm mousedev joydev btqca snd_hwdep btintel snd_pcm bluetooth mxm_wmi input_leds led_class psmouse pcspkr [ 4087.204642] e1000e serio_raw snd_timer snd wmi ptp evdev pps_core rfkill mac_hid thermal fan pinctrl_sunrisepoint pinctrl_intel tpm_infineon battery tpm_tis mei_me mei intel_lpss_acpi intel_lpss acpi_pad tpm i2c_hid soundcore shpchp i2c_i801 processor fjes acpi_als kfifo_buf industrialio sch_fq_codel ip_tables x_tables ext4 crc16 mbcache jbd2 hid_generic usbhid hid sd_mod atkbd libps2 ahci libahci libata xhci_pci xhci_hcd scsi_mod usbcore usb_common i8042 serio i915 video button intel_gtt i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm [ 4087.204718] CPU: 0 PID: 414 Comm: Xorg Tainted: G W 4.3.0-1-ARCH #1 [ 4087.204721] Hardware name: Gigabyte Technology Co., Ltd. Z170X-UD3/Z170X-UD3-CF, BIOS F4 10/20/2015 [ 4087.204725] 0000000000000000 00000000ce8e1234 ffff88045e77f5f8 ffffffff812bbc59 [ 4087.204731] ffff88045e77f640 ffff88045e77f630 ffffffff81074f42 ffff88045db6b000 [ 4087.204737] ffff88045e77f784 ffff88045db68000 0000000000000000 ffff88045e77f6d0 [ 4087.204743] Call Trace: [ 4087.204755] [<ffffffff812bbc59>] dump_stack+0x4b/0x72 [ 4087.204762] [<ffffffff81074f42>] warn_slowpath_common+0x82/0xc0 [ 4087.204768] [<ffffffff81074fdc>] warn_slowpath_fmt+0x5c/0x80 [ 4087.204786] [<ffffffffa00e5b37>] skl_update_other_pipe_wm+0x1e7/0x1f0 [i915] [ 4087.204804] [<ffffffffa00e5d03>] skl_update_wm+0x1c3/0x740 [i915] [ 4087.204830] [<ffffffffa012aa1b>] ? gen9_read32+0xfb/0x2e0 [i915] [ 4087.204844] [<ffffffffa00db6dc>] ? i915_get_vblank_timestamp+0x5c/0x90 [i915] [ 4087.204863] [<ffffffffa00ea1ce>] intel_update_watermarks+0x1e/0x30 [i915] [ 4087.204888] [<ffffffffa0146fbd>] intel_atomic_commit+0x40d/0x13d0 [i915] [ 4087.204901] [<ffffffffa00207a5>] ? drm_atomic_check_only+0x215/0x540 [drm] [ 4087.204912] [<ffffffffa001fb12>] ? drm_atomic_get_crtc_state+0x32/0xd0 [drm] [ 4087.204921] [<ffffffffa0020b07>] drm_atomic_commit+0x37/0x60 [drm] [ 4087.204931] [<ffffffffa008f60f>] drm_atomic_helper_disable_plane+0xef/0x130 [drm_kms_helper] [ 4087.204947] [<ffffffffa00106da>] __setplane_internal+0x23a/0x2f0 [drm] [ 4087.204962] [<ffffffffa00108bb>] drm_mode_cursor_universal+0x12b/0x210 [drm] [ 4087.204976] [<ffffffffa0010a21>] drm_mode_cursor_common+0x81/0x180 [drm] [ 4087.204991] [<ffffffffa0014470>] drm_mode_cursor_ioctl+0x50/0x70 [drm] [ 4087.205002] [<ffffffffa00055c8>] drm_ioctl+0x138/0x500 [drm] [ 4087.205016] [<ffffffffa0014420>] ? drm_mode_setcrtc+0x4f0/0x4f0 [drm] [ 4087.205023] [<ffffffff811d3f17>] ? __vfs_read+0x37/0x100 [ 4087.205031] [<ffffffff811e64d5>] do_vfs_ioctl+0x295/0x480 [ 4087.205038] [<ffffffff81081091>] ? __set_task_blocked+0x41/0xa0 [ 4087.205044] [<ffffffff811f0487>] ? __fget+0x77/0xb0 [ 4087.205050] [<ffffffff811e6739>] SyS_ioctl+0x79/0x90 [ 4087.205058] [<ffffffff8157db2e>] entry_SYSCALL_64_fastpath+0x12/0x71 [ 4087.205063] ---[ end trace a9564ae414c7316e ]--- # dmesg | grep -P -c '.*:3668 skl_update_other_pipe_wm' 25 Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/15 ------------------------------------------------------------------------ On 2015-11-26T13:21:42+00:00 Joonas-lahtinen wrote: *** Bug 92599 has been marked as a duplicate of this bug. *** Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/16 ------------------------------------------------------------------------ On 2015-11-26T13:24:44+00:00 Joonas-lahtinen wrote: This has also happened for the users commenting to bug: #92599 (Added as duplicate). Causes a false positive on the module reload test because the errors are spit out repeatedly even before unloading the module. Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/17 ------------------------------------------------------------------------ On 2015-11-27T11:37:28+00:00 Jani-nikula wrote: *** Bug 93118 has been marked as a duplicate of this bug. *** Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/18 ------------------------------------------------------------------------ On 2015-11-27T11:38:49+00:00 Jani-nikula wrote: Reproducible with igt BAT set. Daniel says, "This is affecting a lot of testcases and really needs to be fixed asap (before we add more atomic patches with their own issues on top)." Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/19 ------------------------------------------------------------------------ On 2015-12-04T22:38:06+00:00 dan wrote: I also have the same issue, fresh install of kubuntu 15.10, always after booting I get several Warnings. I use a hdmi monitor. Last extract from dmesg: [ 44.476443] WARNING: CPU: 0 PID: 768 at /build/linux-26_gwp/linux-4.2.0/drivers/gpu/drm/i915/intel_pm.c:3404 skl_update_other_pipe_wm+0x1de/0x1f0 [i915]() [ 44.476444] WARN_ON(!wm_changed) [ 44.476445] Modules linked in: [ 44.476446] arc4 rtsx_usb_ms rtsx_usb_sdmmc memstick rtsx_usb bbswitch(OE) bnep hid_logitech_hidpp hid_logitech_dj hid_generic usbhid joydev snd_hda_codec_hdmi uvcvideo i2c_designware_platform acer_wmi sparse_keymap nvidia(POE) i2c_designware_core videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common snd_hda_codec_realtek snd_hda_codec_generic videodev media intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul snd_hda_intel snd_hda_codec snd_hda_core btusb snd_hwdep btrtl snd_pcm btbcm btintel bluetooth snd_seq_midi snd_seq_midi_event snd_rawmidi aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd snd_seq ath10k_pci ath10k_core ath mac80211 snd_seq_device snd_timer idma64 virt_dma snd input_leds serio_raw cfg80211 soundcore [ 44.476472] mei_me mei intel_lpss_pci shpchp dell_smo8800 tpm_crb wmi intel_lpss_acpi intel_lpss acpi_pad mac_hid parport_pc ppdev lp parport autofs4 uas usb_storage i915 i2c_algo_bit drm_kms_helper r8169 drm ahci mii libahci i2c_hid hid pinctrl_sunrisepoint video pinctrl_intel [ 44.476483] CPU: 0 PID: 768 Comm: Xorg Tainted: P W OE 4.2.0-19-generic #23-Ubuntu [ 44.476484] Hardware name: Acer Aspire V5-591G/Usopp_SLS, BIOS V1.03 10/23/2015 [ 44.476485] 0000000000000000 00000000f2cd7fef ffff88027509f628 ffffffff817e93f9 [ 44.476487] 0000000000000000 ffff88027509f680 ffff88027509f668 ffffffff8107b3d6 [ 44.476488] ffff88027509f730 ffff88027509f7d4 ffff880274872000 ffff880274873000 [ 44.476490] Call Trace: [ 44.476493] [<ffffffff817e93f9>] dump_stack+0x45/0x57 [ 44.476496] [<ffffffff8107b3d6>] warn_slowpath_common+0x86/0xc0 [ 44.476498] [<ffffffff8107b465>] warn_slowpath_fmt+0x55/0x70 [ 44.476504] [<ffffffffc014eb9e>] skl_update_other_pipe_wm+0x1de/0x1f0 [i915] [ 44.476510] [<ffffffffc014ed6b>] skl_update_wm+0x1bb/0x740 [i915] [ 44.476511] [<ffffffff810bd110>] ? wake_atomic_t_function+0x60/0x60 [ 44.476518] [<ffffffffc01524be>] intel_update_watermarks+0x1e/0x30 [i915] [ 44.476530] [<ffffffffc01b9f68>] haswell_crtc_enable+0x488/0xa90 [i915] [ 44.476541] [<ffffffffc01b6d96>] __intel_set_mode+0x916/0xb60 [i915] [ 44.476551] [<ffffffffc01bdb06>] intel_crtc_set_config+0x2b6/0x580 [i915] [ 44.476561] [<ffffffffc0094ef5>] ? drm_mode_create+0x25/0x60 [drm] [ 44.476568] [<ffffffffc008e4a6>] drm_mode_set_config_internal+0x66/0x100 [drm] [ 44.476575] [<ffffffffc0092b39>] drm_mode_setcrtc+0x3e9/0x500 [drm] [ 44.476580] [<ffffffffc0083495>] drm_ioctl+0x125/0x610 [drm] [ 44.476586] [<ffffffffc0092750>] ? drm_mode_setplane+0x1b0/0x1b0 [drm] [ 44.476589] [<ffffffff81210a25>] do_vfs_ioctl+0x295/0x480 [ 44.476591] [<ffffffff81087f71>] ? __set_task_blocked+0x41/0xa0 [ 44.476592] [<ffffffff81210c89>] SyS_ioctl+0x79/0x90 [ 44.476594] [<ffffffff8108ab84>] ? SyS_rt_sigprocmask+0x74/0xc0 [ 44.476597] [<ffffffff817f01f2>] entry_SYSCALL_64_fastpath+0x16/0x75 [ 44.476598] ---[ end trace 54ca44dc723584de ]--- [ 45.796098] vgaarb: this pci device is not a vga device Do you need additional information? Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/20 ------------------------------------------------------------------------ On 2015-12-04T22:57:25+00:00 dan wrote: It is reproducible as it only occurs with a hdmi connected monitor, without there are no error messages/warnings. Also X server is (sometimes) unable to start because of this Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/21 ------------------------------------------------------------------------ On 2015-12-06T14:16:38+00:00 dan wrote: I just updated the kernel to 4.3.0-040300-generic and the problem still occurs. Regards, Daniel Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/25 ------------------------------------------------------------------------ On 2015-12-07T10:56:54+00:00 Bugs-i wrote: Should be fixed in nightly with commit b900111459e2f4a538697f75b63478f3a6acec3c Author: Maarten Lankhorst <maarten.lankho...@linux.intel.com> Date: Thu Nov 19 16:07:16 2015 +0100 drm/i915/skl: Update watermarks before the crtc is disabled. Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1523088/comments/26 ** Changed in: xorg-server Status: Unknown => Fix Released ** Changed in: xorg-server Importance: Unknown => High ** Bug watch added: freedesktop.org Bugzilla #91587 https://bugs.freedesktop.org/show_bug.cgi?id=91587 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1523088 Title: WARN_ON(!wm_changed) warning and stacktrace in kernel log To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1523088/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
