Additional info:
reporter:       libreport-2.3.0
WARNING: CPU: 0 PID: 4618 at drivers/gpu/drm/i915/intel_display.c:7366 hsw_enable_pc8+0x5b8/0x660 [i915]()
SPLL enabled
Modules linked in: bnep fuse ccm xt_CHECKSUM ipt_MASQUERADE tun nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT 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 vfat fat btusb uvcvideo snd_hda_codec_realtek videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media arc4 snd_hda_codec_hdmi x86_pkg_temp_thermal snd_hda_codec_generic coretemp iwlmvm snd_hda_intel mac80211 kvm_intel snd_hda_controller bluetooth snd_hda_codec kvm iTCO_wdt snd_hwdep iwlwifi snd_seq snd_seq_device
 crct10dif_pclmul crc32_pclmul crc32c_intel iTCO_vendor_support cfg80211 rtsx_pci_ms thinkpad_acpi snd_pcm serio_raw mei_me mei memstick ghash_clmulni_intel shpchp snd_timer i2c_i801 snd lpc_ich wmi soundcore rfkill btrfs xor raid6_pq i915 e1000e rtsx_pci_sdmmc i2c_algo_bit mmc_core drm_kms_helper drm rtsx_pci mfd_core ptp pps_core video
CPU: 0 PID: 4618 Comm: kworker/0:3 Not tainted 3.17.2-300.fc21.x86_64 #1
Hardware name: LENOVO 20AMA02JTA/20AMA02JTA, BIOS GIET62WW (2.12 ) 09/25/2013
Workqueue: pm pm_runtime_work
 0000000000000000 0000000056a592f9 ffff880022ea3c00 ffffffff8173db01
 ffff880022ea3c48 ffff880022ea3c38 ffffffff81096e8d ffff88003f0d0000
 ffff880117592b60 ffff880117592b70 ffff880117592800 ffff880117d59098
Call Trace:
 [<ffffffff8173db01>] dump_stack+0x45/0x56
 [<ffffffff81096e8d>] warn_slowpath_common+0x7d/0xa0
 [<ffffffff81096f0c>] warn_slowpath_fmt+0x5c/0x80
 [<ffffffffa016e258>] hsw_enable_pc8+0x5b8/0x660 [i915]
 [<ffffffffa0114aed>] intel_runtime_suspend+0x1ad/0x8d0 [i915]
 [<ffffffff813c435f>] pci_pm_runtime_suspend+0x5f/0x150
 [<ffffffff814a0e41>] __rpm_callback+0x31/0x80
 [<ffffffff814a0eb6>] rpm_callback+0x26/0xa0
 [<ffffffff814a1691>] rpm_suspend+0x121/0x630
 [<ffffffff814a268a>] pm_runtime_work+0x7a/0xb0
 [<ffffffff810af66d>] process_one_work+0x14d/0x400
 [<ffffffff810afffb>] worker_thread+0x6b/0x4a0
 [<ffffffff810aff90>] ? rescuer_thread+0x2a0/0x2a0
 [<ffffffff810b50da>] kthread+0xea/0x100
 [<ffffffff810b4ff0>] ? kthread_create_on_node+0x1a0/0x1a0
 [<ffffffff81744bbc>] ret_from_fork+0x7c/0xb0
 [<ffffffff810b4ff0>] ? kthread_create_on_node+0x1a0/0x1a0