Additional info:
reporter:       libreport-2.3.0
WARNING: CPU: 0 PID: 22358 at drivers/gpu/drm/i915/intel_display.c:9916 intel_check_page_flip+0xc2/0xd0 [i915]()
Kicking stuck page flip: queued at 8095438, now 8095442
Modules linked in: rfcomm fuse uas usb_storage xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 ccm nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ebtable_nat ebtable_broute bridge stp llc 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 vfat fat intel_rapl coretemp kvm_intel kvm ath3k btusb crct10dif_pclmul crc32_pclmul crc32c_intel arc4 bluetooth ghash_clmulni_intel iTCO_wdt iTCO_vendor_support dell_wmi_aio sparse_keymap ath9k ath9k_common ath9k_hw ath mac80211 cfg80211 snd_hda_codec_hdmi snd_hda_codec_realtek
 snd_hda_codec_generic dcdbas wmi snd_hda_intel snd_hda_controller dw_dmac snd_hda_codec dw_dmac_core snd_hwdep snd_seq snd_seq_device i2c_hid snd_pcm i2c_designware_platform mei_txe snd_timer mei snd i2c_designware_core i2c_i801 rfkill_gpio iosf_mbi soundcore rfkill lpc_ich mfd_core shpchp nfsd auth_rpcgss nfs_acl lockd grace sunrpc xfs libcrc32c i915 i2c_algo_bit drm_kms_helper drm r8169 mii video sdhci_acpi sdhci mmc_core
CPU: 0 PID: 22358 Comm: pipes Not tainted 3.18.7-200.fc21.x86_64 #1
Hardware name: Dell Inc. Inspiron 3646/0F7N3R, BIOS A00 04/14/2014
 0000000000000000 0000000024d20358 ffff88017fc03cd8 ffffffff8175e686
 0000000000000000 ffff88017fc03d30 ffff88017fc03d18 ffffffff810991d1
 ffff88017fc03d28 ffff88003f9dc000 ffff88003fb25800 0000000000000000
Call Trace:
 <IRQ>  [<ffffffff8175e686>] dump_stack+0x46/0x58
 [<ffffffff810991d1>] warn_slowpath_common+0x81/0xa0
 [<ffffffff81099245>] warn_slowpath_fmt+0x55/0x70
 [<ffffffffa0150b12>] intel_check_page_flip+0xc2/0xd0 [i915]
 [<ffffffffa011f8bc>] valleyview_pipestat_irq_handler+0x25c/0x290 [i915]
 [<ffffffffa01235f1>] valleyview_irq_handler+0xb1/0x160 [i915]
 [<ffffffff810ef717>] handle_irq_event_percpu+0x77/0x1a0
 [<ffffffff810ef87b>] handle_irq_event+0x3b/0x60
 [<ffffffff810f2a5e>] handle_edge_irq+0x6e/0x120
 [<ffffffff810164c4>] handle_irq+0x74/0x140
 [<ffffffff817680f1>] do_IRQ+0x51/0xf0
 [<ffffffff81765f2d>] common_interrupt+0x6d/0x6d
 <EOI>  [<ffffffff81765429>] ? system_call_fastpath+0x12/0x17