Comment 2 for bug 1523088

Also with kernel 4.3 the problem persists.

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[Sam Dez 5 23:23:25 2015] WARNING: CPU: 2 PID: 880 at /home/kernel/COD/linux/drivers/gpu/drm/i915/intel_pm.c:3668 skl_update_other_pipe_wm+0x1de/0x1f0 [i915]()
[Sam Dez 5 23:23:25 2015] WARN_ON(!wm_changed)
[Sam Dez 5 23:23:25 2015] Modules linked in:
[Sam Dez 5 23:23:25 2015] drbg ansi_cprng ctr ccm rfcomm xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp bridge stp llc hid_multitouch ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables x_tables pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) bnep arc4 rtsx_usb_ms memstick uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev joydev media btusb btrtl btbcm btintel bluetooth i2c_designware_platform i2c_designware_core acer_wmi sparse_keymap snd_hda_codec_hdmi ath10k_pci ath10k_core snd_hda_codec_realtek ath snd_hda_codec_generic mac80211 intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp snd_hda_intel
[Sam Dez 5 23:23:25 2015] snd_hda_codec coretemp snd_hda_core cfg80211 crct10dif_pclmul snd_hwdep crc32_pclmul snd_pcm aesni_intel aes_x86_64 snd_seq_midi lrw snd_seq_midi_event gf128mul glue_helper snd_rawmidi ablk_helper cryptd snd_seq snd_seq_device snd_timer input_leds serio_raw idma64 snd virt_dma soundcore mei_me mei shpchp intel_lpss_pci dell_smo8800 intel_lpss_acpi intel_lpss mac_hid tpm_crb acpi_pad kvm_intel kvm parport_pc ppdev lp parport autofs4 hid_generic rtsx_usb_sdmmc rtsx_usb hid_logitech_hidpp hid_logitech_dj usbhid nouveau i915 mxm_wmi ttm i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops r8169 ahci mii drm libahci i2c_hid hid wmi pinctrl_sunrisepoint video pinctrl_intel fjes
[Sam Dez 5 23:23:25 2015] CPU: 2 PID: 880 Comm: Xorg Tainted: G W OE 4.3.0-040300-generic #201511020949
[Sam Dez 5 23:23:25 2015] Hardware name: Acer Aspire V5-591G/Usopp_SLS, BIOS V1.03 10/23/2015
[Sam Dez 5 23:23:25 2015] ffffffffc026e570 ffff880276227670 ffffffff813a4c94 ffff8802762276b8
[Sam Dez 5 23:23:25 2015] ffff8802762276a8 ffffffff81078052 ffff8802762277f4 ffff880274339000
[Sam Dez 5 23:23:25 2015] ffff88027433a000 0000000000000000 ffff880276227740 ffff880276227708
[Sam Dez 5 23:23:25 2015] Call Trace:
[Sam Dez 5 23:23:25 2015] [<ffffffff813a4c94>] dump_stack+0x44/0x60
[Sam Dez 5 23:23:25 2015] [<ffffffff81078052>] warn_slowpath_common+0x82/0xc0
[Sam Dez 5 23:23:25 2015] [<ffffffff810780dc>] warn_slowpath_fmt+0x4c/0x50
[Sam Dez 5 23:23:25 2015] [<ffffffffc01b57ce>] skl_update_other_pipe_wm+0x1de/0x1f0 [i915]
[Sam Dez 5 23:23:25 2015] [<ffffffffc01b599b>] skl_update_wm+0x1bb/0x740 [i915]
[Sam Dez 5 23:23:25 2015] [<ffffffffc01f8b27>] ? gen9_read32+0xf7/0x2d0 [i915]
[Sam Dez 5 23:23:25 2015] [<ffffffffc01ab28c>] ? i915_get_vblank_timestamp+0x5c/0x90 [i915]
[Sam Dez 5 23:23:25 2015] [<ffffffffc01ba03e>] intel_update_watermarks+0x1e/0x30 [i915]
[Sam Dez 5 23:23:25 2015] [<ffffffffc0215c70>] intel_atomic_commit+0x3d0/0x640 [i915]
[Sam Dez 5 23:23:25 2015] [<ffffffffc00a5482>] ? drm_atomic_get_crtc_state+0x32/0xd0 [drm]
[Sam Dez 5 23:23:25 2015] [<ffffffffc00a6407>] drm_atomic_commit+0x37/0x60 [drm]
[Sam Dez 5 23:23:25 2015] [<ffffffffc011d72f>] drm_atomic_helper_disable_plane+0xef/0x130 [drm_kms_helper]
[Sam Dez 5 23:23:25 2015] [<ffffffffc009611a>] __setplane_internal+0x23a/0x2f0 [drm]
[Sam Dez 5 23:23:25 2015] [<ffffffffc00962eb>] drm_mode_cursor_universal+0x11b/0x1f0 [drm]
[Sam Dez 5 23:23:25 2015] [<ffffffffc0096441>] drm_mode_cursor_common+0x81/0x180 [drm]
[Sam Dez 5 23:23:25 2015] [<ffffffffc009a241>] drm_mode_cursor_ioctl+0x41/0x50 [drm]
[Sam Dez 5 23:23:25 2015] [<ffffffffc008b408>] drm_ioctl+0x138/0x500 [drm]
[Sam Dez 5 23:23:25 2015] [<ffffffffc009a200>] ? drm_mode_setcrtc+0x4c0/0x4c0 [drm]
[Sam Dez 5 23:23:25 2015] [<ffffffff812077c5>] ? dput+0xb5/0x220
[Sam Dez 5 23:23:25 2015] [<ffffffff811f0ea8>] ? __vfs_read+0x28/0xe0
[Sam Dez 5 23:23:25 2015] [<ffffffff81204205>] do_vfs_ioctl+0x285/0x470
[Sam Dez 5 23:23:25 2015] [<ffffffff81084912>] ? __set_task_blocked+0x32/0x70
[Sam Dez 5 23:23:25 2015] [<ffffffff81204469>] SyS_ioctl+0x79/0x90
[Sam Dez 5 23:23:25 2015] [<ffffffff817b3036>] entry_SYSCALL_64_fastpath+0x16/0x75
[Sam Dez 5 23:23:25 2015] ---[ end trace a62f2571d02f797e ]---