Description of problem: happened at boot time Additional info: reporter: libreport-2.2.3 WARNING: CPU: 0 PID: 955 at drivers/gpu/drm/i915/intel_display.c:902 intel_wait_for_vblank+0x209/0x210 [i915]() vblank wait timed out Modules linked in: bnep bluetooth 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 fuse arc4 snd_hda_codec_hdmi ath5k snd_hda_codec_realtek ath snd_hda_codec_generic uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm mac80211 iTCO_wdt iTCO_vendor_support media lpc_ich mfd_core cfg80211 coretemp shpchp toshiba_acpi joydev snd_timer sparse_keymap snd rfkill wmi soundcore serio_raw i2c_i801 toshiba_bluetooth acpi_cpufreq hid_logitech_dj i915 i2c_algo_bit drm_kms_helper r8169 drm mii video ums_realtek uas usb_storage CPU: 0 PID: 955 Comm: X Not tainted 3.17.2-200.fc20.x86_64 #1 Hardware name: TOSHIBA Satellite Pro L300/Portable PC, BIOS 2.20 12/09/2009 0000000000000000 0000000031a5ce3c ffff8800a14f3a70 ffffffff817271cc ffff8800a14f3ab8 ffff8800a14f3aa8 ffffffff81094ced ffff880036410000 0000000000070040 0000000000000028 00000000fffc18ec 00000000000000aa Call Trace: [<ffffffff817271cc>] dump_stack+0x45/0x56 [<ffffffff81094ced>] warn_slowpath_common+0x7d/0xa0 [<ffffffff81094d6c>] warn_slowpath_fmt+0x5c/0x80 [<ffffffffa0111afb>] ? gen4_read32+0x4b/0xc0 [i915] [<ffffffffa0122169>] intel_wait_for_vblank+0x209/0x210 [i915] [<ffffffffa015db65>] intel_tv_detect+0x245/0x5c0 [i915] [<ffffffffa00b9b03>] drm_helper_probe_single_connector_modes_merge_bits+0x2c3/0x3d0 [drm_kms_helper] [<ffffffffa00b9c23>] drm_helper_probe_single_connector_modes+0x13/0x20 [drm_kms_helper] [<ffffffffa005758f>] drm_mode_getconnector+0x3ff/0x470 [drm] [<ffffffff81725569>] ? __slab_free+0x10e/0x277 [<ffffffffa0049e0c>] drm_ioctl+0x1ec/0x660 [drm] [<ffffffff81214830>] do_vfs_ioctl+0x2e0/0x4a0 [<ffffffff8120341e>] ? ____fput+0xe/0x10 [<ffffffff81214a71>] SyS_ioctl+0x81/0xa0 [<ffffffff8172e869>] system_call_fastpath+0x16/0x1b Potential duplicate: bug 1167007
Created attachment 960381 [details] File: dmesg
Description of problem: I get several messages like this every time I boot this laptop. No idea what causes them, but once it's done booting, it's fine. Version-Release number of selected component: kernel Additional info: reporter: libreport-2.2.3 cmdline: BOOT_IMAGE=/vmlinuz-3.17.3-200.fc20.i686+PAE root=UUID=e211a9d3-2592-4a94-8424-a9251dd7c58c ro rd.md=0 rd.lvm=0 rd.dm=0 SYSFONT=True KEYTABLE=us rd.luks=0 LANG=en_US.UTF-8 rhgb quiet kernel: 3.17.3-200.fc20.i686+PAE runlevel: N 5 type: Kerneloops Truncated backtrace: WARNING: CPU: 1 PID: 515 at drivers/gpu/drm/i915/intel_display.c:902 intel_wait_for_vblank+0x1e7/0x1f0 [i915]() vblank wait timed out Modules linked in: ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter nf_conntrack_ipv4 nf_defrag_ipv4 ip6_tables xt_conntrack nf_conntrack uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core snd_hda_codec_hdmi v4l2_common snd_hda_codec_realtek snd_hda_codec_generic videodev snd_hda_intel snd_hda_controller media arc4 snd_hda_codec iwldvm coretemp mac80211 snd_hwdep iTCO_wdt iTCO_vendor_support snd_seq snd_seq_device snd_pcm toshiba_acpi iwlwifi cfg80211 sparse_keymap r8169 snd_timer serio_raw mii i2c_i801 lpc_ich wmi snd rfkill mfd_core soundcore toshiba_bluetooth acpi_cpufreq binfmt_misc i915 ums_realtek i2c_algo_bit uas drm_kms_helper drm usb_storage video CPU: 1 PID: 515 Comm: X Not tainted 3.17.3-200.fc20.i686+PAE #1 Hardware name: TOSHIBA Satellite L305/Portable PC, BIOS 1.80 03/20/2009 c0cd8947 76767299 00000000 f0d11bd8 c0a35ff9 f0d11c18 f0d11c08 c0460cfe f84ab712 f0d11c38 00000203 f84a1c68 00000386 f844eb47 f844eb47 f64f8000 00070040 00000016 f0d11c24 c0460d5e 00000009 f0d11c18 f84ab712 f0d11c38 Call Trace: [<c0a35ff9>] dump_stack+0x41/0x52 [<c0460cfe>] warn_slowpath_common+0x7e/0xa0 [<f844eb47>] ? intel_wait_for_vblank+0x1e7/0x1f0 [i915] [<f844eb47>] ? intel_wait_for_vblank+0x1e7/0x1f0 [i915] [<c0460d5e>] warn_slowpath_fmt+0x3e/0x60 [<f844eb47>] intel_wait_for_vblank+0x1e7/0x1f0 [i915] [<f8485809>] intel_tv_detect+0x219/0x5f0 [i915] [<f7f83788>] drm_helper_probe_single_connector_modes_merge_bits+0x278/0x370 [drm_kms_helper] [<c0a3a180>] ? mutex_lock+0x10/0x28 [<f7f83897>] drm_helper_probe_single_connector_modes+0x17/0x20 [drm_kms_helper] [<f8092425>] drm_mode_getconnector+0x325/0x3a0 [drm] [<f8092100>] ? drm_mode_getcrtc+0xc0/0xc0 [drm] [<f80863cf>] drm_ioctl+0x1cf/0x520 [drm] [<c05c613d>] ? inotify_free_event+0xd/0x10 [<f8092100>] ? drm_mode_getcrtc+0xc0/0xc0 [drm] [<c05064a7>] ? tracing_entries_read+0xa7/0x190 [<c058d686>] ? new_sync_write+0x76/0xb0 [<f8086200>] ? drm_copy_field+0x70/0x70 [drm] [<c059e69a>] do_vfs_ioctl+0x2ea/0x4b0 [<c066e392>] ? inode_has_perm.isra.32+0x32/0x40 [<c066e4e7>] ? file_has_perm+0x97/0xa0 [<c058dc1d>] ? vfs_write+0x15d/0x1d0 [<c066ef5c>] ? selinux_file_ioctl+0x4c/0xf0 [<c059e8c0>] SyS_ioctl+0x60/0x90 [<c04c64a7>] ? __clockevents_unbind+0x67/0xf0 [<c04c64a7>] ? __clockevents_unbind+0x67/0xf0 [<c0a3c7df>] sysenter_do_call+0x12/0x12 [<c04c64a7>] ? __clockevents_unbind+0x67/0xf0 [<c04c64a7>] ? __clockevents_unbind+0x67/0xf0
*** This bug has been marked as a duplicate of bug 1144620 ***