Additional info: reporter: libreport-2.6.3 WARNING: CPU: 0 PID: 5217 at drivers/gpu/drm/i915/intel_uncore.c:620 hsw_unclaimed_reg_debug+0x69/0x90 [i915]() Unclaimed register detected before reading register 0xc6008 Modules linked in: xt_CHECKSUM tun nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE nf_nat_masquerade_ipv4 fuse ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ebtable_broute bridge stp llc ebtable_nat ebtable_filter ebtables ip6table_raw ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_security ip6table_mangle ip6table_filter ip6_tables iptable_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_security iptable_mangle it87 hwmon_vid gspca_spca561 gspca_main videodev media intel_rapl iosf_mbi x86_pkg_temp_thermal coretemp kvm_intel kvm vfat fat crct10dif_pclmul crc32_pclmul iTCO_wdt crc32c_intel iTCO_vendor_support mxm_wmi snd_hda_codec_realtek snd_hda_codec_generic i2c_i801 snd_hda_codec_hdmi lpc_ich snd_hda_intel snd_hda_codec mei_me shpchp mei joydev snd_hda_core snd_hwdep snd_seq snd_seq_device snd_pcm tpm_infineon snd_timer tpm_tis snd tpm wmi soundcore nfsd auth_rpcgss nfs_acl lockd grace binfmt_misc sunrpc i915 uas usb_storage i2c_algo_bit drm_kms_helper drm e1000e serio_raw ptp pps_core video fjes i2c_dev CPU: 0 PID: 5217 Comm: kworker/u8:17 Not tainted 4.3.3-300.fc23.x86_64 #1 Hardware name: Gigabyte Technology Co., Ltd. Z87X-D3H/Z87X-D3H-CF, BIOS F9 08/25/2014 Workqueue: events_unbound async_run_entry_fn 0000000000000000 000000004042a720 ffff88040085bb58 ffffffff813a626f ffff88040085bba0 ffff88040085bb90 ffffffff810a07c2 ffff880408230000 00000000000c6008 0000000000002a00 00000000000c6008 ffff880408230000 Call Trace: [<ffffffff813a626f>] dump_stack+0x44/0x55 [<ffffffff810a07c2>] warn_slowpath_common+0x82/0xc0 [<ffffffff810a085c>] warn_slowpath_fmt+0x5c/0x80 [<ffffffffa0189ba9>] hsw_unclaimed_reg_debug+0x69/0x90 [i915] [<ffffffffa018c099>] gen6_read32+0x59/0x180 [i915] [<ffffffffa01bc296>] intel_sbi_read+0x46/0x1f0 [i915] [<ffffffffa01996fa>] lpt_disable_clkout_dp+0x4a/0xc0 [i915] [<ffffffffa01af46a>] hsw_enable_pc8+0x3a/0x730 [i915] [<ffffffffa013a39d>] intel_suspend_complete+0x65d/0x6f0 [i915] [<ffffffffa013a452>] i915_drm_suspend_late+0x22/0x80 [i915] [<ffffffffa013a590>] ? i915_pm_poweroff_late+0x30/0x30 [i915] [<ffffffffa013a5b7>] i915_pm_suspend_late+0x27/0x30 [i915] [<ffffffff814e595a>] dpm_run_callback+0x7a/0xf0 [<ffffffff814e62ed>] __device_suspend_late+0xfd/0x210 [<ffffffff814e682f>] async_suspend_late+0x1f/0xa0 [<ffffffff810c171a>] async_run_entry_fn+0x4a/0x140 [<ffffffff810b8cde>] process_one_work+0x19e/0x3f0 [<ffffffff810b8f7e>] worker_thread+0x4e/0x450 [<ffffffff810b8f30>] ? process_one_work+0x3f0/0x3f0 [<ffffffff810bede8>] kthread+0xd8/0xf0 [<ffffffff810bed10>] ? kthread_worker_fn+0x160/0x160 [<ffffffff8178199f>] ret_from_fork+0x3f/0x70 [<ffffffff810bed10>] ? kthread_worker_fn+0x160/0x160
Created attachment 1113196 [details] File: dmesg
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Has not re-occurred.