Additional info:
reporter:       libreport-2.3.0
WARNING: CPU: 2 PID: 4268 at drivers/gpu/drm/i915/intel_display.c:9916 intel_check_page_flip+0xc2/0xd0 [i915]()
Kicking stuck page flip: queued at 1399967, now 1399972
Modules linked in: rfcomm fuse 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 intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm arc4 uvcvideo ath9k ath9k_common ath9k_hw videobuf2_vmalloc snd_hda_codec_hdmi snd_hda_codec_idt videobuf2_core snd_hda_codec_generic snd_hda_intel videobuf2_memops ath v4l2_common videodev media mac80211 snd_hda_controller dell_wmi iTCO_wdt sparse_keymap iTCO_vendor_support snd_hda_codec
 joydev mei_me dell_laptop snd_hwdep snd_seq cfg80211 snd_seq_device snd_pcm dcdbas wmi ath3k lpc_ich mfd_core mei btusb bluetooth snd_timer snd i2c_i801 shpchp serio_raw rfkill soundcore nfsd auth_rpcgss nfs_acl lockd grace sunrpc dm_crypt i915 i2c_algo_bit crct10dif_pclmul crc32_pclmul crc32c_intel drm_kms_helper ghash_clmulni_intel drm r8169 mii video ums_realtek uas usb_storage
CPU: 2 PID: 4268 Comm: dota_linux Not tainted 3.18.7-200.fc21.x86_64 #1
Hardware name: Dell Inc. Inspiron N4050/0X0DC1, BIOS A08 08/03/2012
 0000000000000000 00000000aba63a0f ffff88011fb03cf8 ffffffff8175e686
 0000000000000000 ffff88011fb03d50 ffff88011fb03d38 ffffffff810991d1
 ffff88011fb03d48 ffff8800d327d000 ffff88003651b000 0000000000000000
Call Trace:
 <IRQ>  [<ffffffff8175e686>] dump_stack+0x46/0x58
 [<ffffffff810991d1>] warn_slowpath_common+0x81/0xa0
 [<ffffffff81099245>] warn_slowpath_fmt+0x55/0x70
 [<ffffffffa014bb12>] intel_check_page_flip+0xc2/0xd0 [i915]
 [<ffffffffa011d7b5>] ironlake_irq_handler+0x315/0x10a0 [i915]
 [<ffffffff810ffa6c>] ? update_process_times+0x6c/0x80
 [<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>  [<ffffffff81767b89>] ? sysexit_audit+0x30/0x69