Same issue here with a Dell Latitude [157658.178997] ------------[ cut here ]------------ [157658.179095] WARNING: CPU: 2 PID: 1869 at /build/buildd/linux-3.16.0/drivers/gpu/drm/i915/intel_display.c:3324 intel_crtc_wait_for_pending_flips+0x16c/0x180 [i915]() [157658.179100] Modules linked in: nls_utf8 btrfs xor raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c xt_CHECKSUM iptable_mangle ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) bnep rfcomm bluetooth 6lowpan_iphc dell_wmi sparse_keymap intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel arc4 dell_laptop dcdbas uvcvideo iwldvm videobuf2_vmalloc mac80211 binfmt_misc videobuf2_memops aesni_intel aes_x86_64 lrw videobuf2_core gf128mul v4l2_common glue_helper videodev ablk_helper [157658.179197] cryptd media joydev serio_raw iwlwifi cfg80211 wmi dell_smo8800 snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event i915 snd_rawmidi snd_seq snd_seq_device snd_timer video mac_hid drm_kms_helper lpc_ich drm snd mei_me soundcore mei shpchp i2c_algo_bit parport_pc ppdev lp parport hid_generic usbhid hid firewire_ohci sdhci_pci e1000e sdhci psmouse firewire_core ahci ptp libahci crc_itu_t pps_core [157658.179272] CPU: 2 PID: 1869 Comm: Xorg Tainted: G W OE 3.16.0-23-generic #31-Ubuntu [157658.179277] Hardware name: Dell Inc. Latitude E6520/0CMN08, BIOS A19 11/14/2013 [157658.179282] 0000000000000009 ffff880035f47bf8 ffffffff8177fcbc 0000000000000000 [157658.179289] ffff880035f47c30 ffffffff8106fd8d 0000000000000000 ffff8800c328a000 [157658.179296] ffff880035cb8210 ffff8801277a4800 ffff8801277a4800 ffff880035f47c40 [157658.179303] Call Trace: [157658.179320] [<ffffffff8177fcbc>] dump_stack+0x45/0x56 [157658.179332] [<ffffffff8106fd8d>] warn_slowpath_common+0x7d/0xa0 [157658.179340] [<ffffffff8106fe6a>] warn_slowpath_null+0x1a/0x20 [157658.179389] [<ffffffffc02dcffc>] intel_crtc_wait_for_pending_flips+0x16c/0x180 [i915] [157658.179402] [<ffffffff810b9590>] ? prepare_to_wait_event+0x100/0x100 [157658.179448] [<ffffffffc02dfac3>] intel_crtc_disable_planes+0x33/0x1c0 [i915] [157658.179490] [<ffffffffc02e0090>] ironlake_crtc_disable+0x50/0x980 [i915] [157658.179538] [<ffffffffc0201f53>] ? drm_modeset_lock+0x33/0xf0 [drm] [157658.179546] [<ffffffff81785ab2>] ? mutex_lock+0x12/0x30 [157658.179589] [<ffffffffc02e1457>] intel_crtc_update_dpms+0x67/0xa0 [i915] [157658.179630] [<ffffffffc02e5ac9>] intel_connector_dpms+0x59/0x70 [i915] [157658.179668] [<ffffffffc01f8e19>] drm_mode_obj_set_property_ioctl+0x399/0x3a0 [drm] [157658.179701] [<ffffffffc01f8e50>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm] [157658.179725] [<ffffffffc01e7a4f>] drm_ioctl+0x1df/0x680 [drm] [157658.179740] [<ffffffff810a9de8>] ? __enqueue_entity+0x78/0x80 [157658.179750] [<ffffffff8101e04f>] ? __switch_to_xtra+0x13f/0x170 [157658.179758] [<ffffffff811f4bc8>] do_vfs_ioctl+0x2c8/0x4a0 [157658.179765] [<ffffffff8178294d>] ? __schedule+0x39d/0x890 [157658.179771] [<ffffffff811f4e21>] SyS_ioctl+0x81/0xa0 [157658.179779] [<ffffffff81787ced>] system_call_fastpath+0x1a/0x1f [157658.179784] ---[ end trace 615210e0689c33af ]---
Same issue here with a Dell Latitude buildd/ linux-3. 16.0/drivers/ gpu/drm/ i915/intel_ display. c:3324 intel_crtc_ wait_for_ pending_ flips+0x16c/ 0x180 [i915]() codec_generic pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) bnep rfcomm bluetooth 6lowpan_iphc dell_wmi sparse_keymap intel_rapl x86_pkg_ temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel arc4 dell_laptop dcdbas uvcvideo iwldvm videobuf2_vmalloc mac80211 binfmt_misc videobuf2_memops aesni_intel aes_x86_64 lrw videobuf2_core gf128mul v4l2_common glue_helper videodev ablk_helper cbc>] dump_stack+ 0x45/0x56 d8d>] warn_slowpath_ common+ 0x7d/0xa0 e6a>] warn_slowpath_ null+0x1a/ 0x20 ffc>] intel_crtc_ wait_for_ pending_ flips+0x16c/ 0x180 [i915] 590>] ? prepare_ to_wait_ event+0x100/ 0x100 ac3>] intel_crtc_ disable_ planes+ 0x33/0x1c0 [i915] 090>] ironlake_ crtc_disable+ 0x50/0x980 [i915] f53>] ? drm_modeset_ lock+0x33/ 0xf0 [drm] ab2>] ? mutex_lock+ 0x12/0x30 457>] intel_crtc_ update_ dpms+0x67/ 0xa0 [i915] ac9>] intel_connector _dpms+0x59/ 0x70 [i915] e19>] drm_mode_ obj_set_ property_ ioctl+0x399/ 0x3a0 [drm] e50>] drm_mode_ connector_ property_ set_ioctl+ 0x30/0x40 [drm] a4f>] drm_ioctl+ 0x1df/0x680 [drm] de8>] ? __enqueue_ entity+ 0x78/0x80 04f>] ? __switch_ to_xtra+ 0x13f/0x170 bc8>] do_vfs_ ioctl+0x2c8/ 0x4a0 94d>] ? __schedule+ 0x39d/0x890 e21>] SyS_ioctl+0x81/0xa0 ced>] system_ call_fastpath+ 0x1a/0x1f
[157658.178997] ------------[ cut here ]------------
[157658.179095] WARNING: CPU: 2 PID: 1869 at /build/
[157658.179100] Modules linked in: nls_utf8 btrfs xor raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c xt_CHECKSUM iptable_mangle ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_
[157658.179197] cryptd media joydev serio_raw iwlwifi cfg80211 wmi dell_smo8800 snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event i915 snd_rawmidi snd_seq snd_seq_device snd_timer video mac_hid drm_kms_helper lpc_ich drm snd mei_me soundcore mei shpchp i2c_algo_bit parport_pc ppdev lp parport hid_generic usbhid hid firewire_ohci sdhci_pci e1000e sdhci psmouse firewire_core ahci ptp libahci crc_itu_t pps_core
[157658.179272] CPU: 2 PID: 1869 Comm: Xorg Tainted: G W OE 3.16.0-23-generic #31-Ubuntu
[157658.179277] Hardware name: Dell Inc. Latitude E6520/0CMN08, BIOS A19 11/14/2013
[157658.179282] 0000000000000009 ffff880035f47bf8 ffffffff8177fcbc 0000000000000000
[157658.179289] ffff880035f47c30 ffffffff8106fd8d 0000000000000000 ffff8800c328a000
[157658.179296] ffff880035cb8210 ffff8801277a4800 ffff8801277a4800 ffff880035f47c40
[157658.179303] Call Trace:
[157658.179320] [<ffffffff8177f
[157658.179332] [<ffffffff8106f
[157658.179340] [<ffffffff8106f
[157658.179389] [<ffffffffc02dc
[157658.179402] [<ffffffff810b9
[157658.179448] [<ffffffffc02df
[157658.179490] [<ffffffffc02e0
[157658.179538] [<ffffffffc0201
[157658.179546] [<ffffffff81785
[157658.179589] [<ffffffffc02e1
[157658.179630] [<ffffffffc02e5
[157658.179668] [<ffffffffc01f8
[157658.179701] [<ffffffffc01f8
[157658.179725] [<ffffffffc01e7
[157658.179740] [<ffffffff810a9
[157658.179750] [<ffffffff8101e
[157658.179758] [<ffffffff811f4
[157658.179765] [<ffffffff81782
[157658.179771] [<ffffffff811f4
[157658.179779] [<ffffffff81787
[157658.179784] ---[ end trace 615210e0689c33af ]---