<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [SKL APL] WARN_ON(!wm_changed) hit in the WM code with multiple pipes enabled" href="https://bugs.freedesktop.org/show_bug.cgi?id=89055#c45">Comment # 45</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [SKL APL] WARN_ON(!wm_changed) hit in the WM code with multiple pipes enabled" href="https://bugs.freedesktop.org/show_bug.cgi?id=89055">bug 89055</a> from <a class="email" href="mailto:hector.yuen@gmail.com" title="Hector Yuen <hector.yuen@gmail.com>"> Hector Yuen</a> <pre>Has been happening to me as well i7-6560U running 3.19.0-58-generic [ 2523.443953] ------------[ cut here ]------------ [ 2523.443993] WARNING: CPU: 2 PID: 1681 at /build/linux-lts-vivid-GISjUd/linux-lts-vivid-3.19.0/ubuntu/i915/intel_pm.c:3406 skl_update_other_pipe_wm+0x210/0x220 [i915_bpo]() [ 2523.443995] WARN_ON(!wm_changed) [ 2523.443996] Modules linked in: hid_generic cdc_ether usbnet r8152 mii dell_wmi sparse_keymap ctr ccm nvram msr dm_crypt arc4 snd_hda_codec_hdmi(OE) dell_led dell_laptop dcdbas x86_pkg_temp_thermal coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul snd_hda_codec_realtek(OE) snd_hda_codec_generic(OE) aesni_intel snd_hda_intel(OE) snd_hda_codec(OE) snd_hda_core(OE) snd_hwdep snd_pcm aes_x86_64 lrw gf128mul glue_helper ablk_helper snd_seq_midi cryptd iwlmvm(OE) snd_seq_midi_event mac80211(OE) snd_rawmidi dm_multipath joydev scsi_dh iwlwifi(OE) serio_raw rts_cr_host(OE) cfg80211(OE) rts_cr_core(OE) uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media hid_multitouch snd_seq snd_seq_device snd_timer snd soundcore shpchp i2c_hid acpi_pad int3403_thermal int3400_thermal acpi_thermal_rel mac_hid intel_hid(OE) i915_bpo intel_ips drm_kms_helper cmac drm i2c_algo_bit parport_pc ppdev rfcomm(OE) bnep(OE) lp parport nls_iso8859_1 btrfs xor raid6_pq dm_mirror dm_region_hash dm_log usbhid hid btusb(OE) btintel(OE) bluetooth(OE) compat(OE) psmouse ahci nvme libahci wmi video [ 2523.444052] CPU: 2 PID: 1681 Comm: Xorg Tainted: G W OE 3.19.0-58-generic #64~14.04.1-Ubuntu [ 2523.444054] Hardware name: Dell Inc. XPS 13 9350/09JHRY, BIOS 1.3.3 03/01/2016 [ 2523.444056] 0000000000000000 ffff88046af8f588 ffffffff817b6c3d ffff88046af8f5d8 [ 2523.444059] ffffffffc0448268 ffff88046af8f5c8 ffffffff81075f3a ffff88046af8f700 [ 2523.444061] ffff880466999000 ffff88046af8f670 ffff88046af8f724 ffff880466998000 [ 2523.444064] Call Trace: [ 2523.444071] [<ffffffff817b6c3d>] dump_stack+0x63/0x81 [ 2523.444076] [<ffffffff81075f3a>] warn_slowpath_common+0x8a/0xc0 [ 2523.444078] [<ffffffff81075fb6>] warn_slowpath_fmt+0x46/0x50 [ 2523.444097] [<ffffffffc0387720>] skl_update_other_pipe_wm+0x210/0x220 [i915_bpo] [ 2523.444116] [<ffffffffc0387935>] skl_update_wm+0x205/0x850 [i915_bpo] [ 2523.444141] [<ffffffffc03d25de>] ? gen9_read32+0x6e/0x310 [i915_bpo] [ 2523.444159] [<ffffffffc0388a1e>] intel_update_watermarks+0x1e/0x30 [i915_bpo] [ 2523.444184] [<ffffffffc03ef560>] intel_finish_crtc_commit+0x190/0x1b0 [i915_bpo] [ 2523.444194] [<ffffffffc035ab59>] drm_atomic_helper_commit_planes_on_crtc+0x169/0x240 [drm_kms_helper] [ 2523.444221] [<ffffffffc04095e8>] intel_atomic_commit+0x68/0x100 [i915_bpo] [ 2523.444243] [<ffffffffc02fb247>] drm_atomic_commit+0x37/0x60 [drm] [ 2523.444252] [<ffffffffc03591bd>] drm_atomic_helper_update_plane+0xed/0x140 [drm_kms_helper] [ 2523.444268] [<ffffffffc02eacd0>] __setplane_internal+0x190/0x2c0 [drm] [ 2523.444282] [<ffffffffc02eaf1c>] drm_mode_cursor_universal+0x11c/0x200 [drm] [ 2523.444286] [<ffffffff817bc19b>] ? __ww_mutex_lock+0x1b/0x97 [ 2523.444298] [<ffffffffc02eb07c>] drm_mode_cursor_common+0x7c/0x1b0 [drm] [ 2523.444301] [<ffffffff81081ac7>] ? __sigqueue_free.part.12+0x37/0x40 [ 2523.444317] [<ffffffffc02ef351>] drm_mode_cursor_ioctl+0x41/0x50 [drm] [ 2523.444317] [<ffffffffc02ef351>] drm_mode_cursor_ioctl+0x41/0x50 [drm] [ 2523.444329] [<ffffffffc02dfaac>] drm_ioctl+0x1ec/0x660 [drm] [ 2523.444334] [<ffffffff812028c8>] do_vfs_ioctl+0x2f8/0x510 [ 2523.444336] [<ffffffff81082c62>] ? __set_task_blocked+0x32/0x70 [ 2523.444340] [<ffffffff811ef788>] ? __vfs_read+0x18/0x50 [ 2523.444343] [<ffffffff81085736>] ? __set_current_blocked+0x36/0x90 [ 2523.444345] [<ffffffff81202b61>] SyS_ioctl+0x81/0xa0 [ 2523.444348] [<ffffffff810859f6>] ? SyS_rt_sigprocmask+0x86/0xb0 [ 2523.444352] [<ffffffff817be78d>] system_call_fastpath+0x16/0x1b [ 2523.444354] ---[ end trace 5311b4c88f205a25 ]---</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>