Additional info:
reporter:       libreport-2.5.1
WARNING: CPU: 2 PID: 0 at drivers/gpu/drm/i915/intel_display.c:9756 intel_check_page_flip+0xdb/0xf0 [i915]()
Kicking stuck page flip: queued at 103759, now 103988
Modules linked in: ccm rfcomm fuse xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack cpufreq_stats ebtable_nat ebtable_broute bridge ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw bnep arc4 iwlmvm vfat ppdev fat mac80211 intel_rapl iTCO_wdt iTCO_vendor_support iosf_mbi dell_wmi sparse_keymap x86_pkg_temp_thermal coretemp kvm_intel snd_soc_rt5640 iwlwifi dell_led kvm dell_laptop dcdbas i8k snd_hda_codec_realtek snd_hda_codec_hdmi snd_soc_rl6231 btusb snd_hda_codec_generic
 uvcvideo snd_soc_core cfg80211 snd_hda_intel videobuf2_vmalloc videobuf2_core snd_hda_controller crct10dif_pclmul crc32_pclmul bluetooth snd_compress crc32c_intel snd_pcm_dmaengine videobuf2_memops snd_hda_codec snd_hwdep v4l2_common ghash_clmulni_intel videodev snd_seq snd_seq_device media snd_pcm joydev serio_raw mei_me snd_timer rfkill mei snd parport_pc i2c_i801 shpchp lpc_ich mfd_core parport wmi soundcore int3403_thermal regmap_i2c dw_dmac i2c_hid processor_thermal_device int3402_thermal dw_dmac_core dell_smo8800 snd_soc_sst_acpi i2c_designware_platform int3400_thermal acpi_pad acpi_thermal_rel int340x_thermal_zone i2c_designware_core nfsd auth_rpcgss nfs_acl lockd grace sunrpc 8021q garp stp llc mrp i915 i2c_algo_bit drm_kms_helper drm e1000e ptp sdhci_pci pps_core sdhci_acpi
 sdhci mmc_core video
CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.0.0-1.fc22.x86_64 #1
Hardware name: Dell Inc. Latitude E7450/0D8H72, BIOS A03 04/10/2015
 0000000000000000 a29797b333996d5d ffff88021e503d58 ffffffff81783088
 0000000000000000 ffff88021e503db0 ffff88021e503d98 ffffffff8109c60a
 ffff88021e503dc8 ffff88021203c000 ffff880212434000 0000000000000000
Call Trace:
 <IRQ>  [<ffffffff81783088>] dump_stack+0x45/0x57
 [<ffffffff8109c60a>] warn_slowpath_common+0x8a/0xc0
 [<ffffffff8109c695>] warn_slowpath_fmt+0x55/0x70
 [<ffffffffa01a409b>] intel_check_page_flip+0xdb/0xf0 [i915]
 [<ffffffffa0171312>] gen8_irq_handler+0x3a2/0x4a0 [i915]
 [<ffffffff810f4bc7>] handle_irq_event_percpu+0x77/0x1a0
 [<ffffffff810f4d2b>] handle_irq_event+0x3b/0x60
 [<ffffffff810f7f4e>] handle_edge_irq+0x6e/0x120
 [<ffffffff81016514>] handle_irq+0x74/0x140
 [<ffffffff810bc49a>] ? atomic_notifier_call_chain+0x1a/0x20
 [<ffffffff8178c29f>] do_IRQ+0x4f/0xf0
 [<ffffffff81789fed>] common_interrupt+0x6d/0x6d
 <EOI>  [<ffffffff816195bd>] ? cpuidle_enter_state+0x5d/0x170
 [<ffffffff816195ad>] ? cpuidle_enter_state+0x4d/0x170
 [<ffffffff81619707>] cpuidle_enter+0x17/0x20
 [<ffffffff810df9f4>] cpu_startup_entry+0x314/0x430
 [<ffffffff811133fc>] ? clockevents_register_device+0xbc/0x130
 [<ffffffff8104a8e5>] start_secondary+0x1a5/0x1f0