[ 157.909544] netpoll: netconsole: local port 6665 [ 157.909575] netpoll: netconsole: local IPv4 address 0.0.0.0 [ 157.909606] netpoll: netconsole: interface 'enp6s0' [ 157.909633] netpoll: netconsole: remote port 6666 [ 157.909657] netpoll: netconsole: remote IPv4 address 10.239.156.128 [ 157.909679] netpoll: netconsole: remote ethernet address 74:d0:2b:95:69:65 [ 157.909705] netpoll: netconsole: local IP 10.239.156.86 [ 157.910331] console [netcon0] enabled [ 157.910363] netconsole: network logging started [ 157.974789] console [netcon0] disabled [ 158.015371] console [netcon0] enabled [ 158.015392] netconsole: network logging started [ 169.203051] kms_pipe_crc_basic: executing [ 169.203227] [drm:i915_gem_open] [ 169.204177] [drm:i915_gem_open] [ 169.204284] [drm:i915_gem_open] [ 169.204374] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 169.204441] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 169.204506] [drm:drm_mode_getconnector] [CONNECTOR:18:?] [ 169.204555] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:VGA-1] [ 169.204616] [drm:intel_crt_detect] [CONNECTOR:18:VGA-1] force=1 [ 169.204653] [drm:intel_display_power_get] enabling always-on [ 169.204691] [drm:intel_ironlake_crt_detect_hotplug] ironlake hotplug adpa=0xf40000, result 0 [ 169.204745] [drm:intel_crt_detect] CRT not detected via hotplug [ 169.212433] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga [ 169.212486] [drm:intel_crt_detect_ddc] CRT not detected via DDC:0x50 [no valid EDID found] [ 169.212535] [drm:intel_display_power_put] disabling always-on [ 169.212572] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:VGA-1] disconnected [ 169.212618] [drm:drm_mode_getconnector] [CONNECTOR:18:?] [ 169.212648] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:VGA-1] [ 169.212687] [drm:intel_crt_detect] [CONNECTOR:18:VGA-1] force=1 [ 169.212724] [drm:intel_display_power_get] enabling always-on [ 169.213354] [drm:intel_ironlake_crt_detect_hotplug] ironlake hotplug adpa=0xf40000, result 0 [ 169.213987] [drm:intel_crt_detect] CRT not detected via hotplug [ 169.222445] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga [ 169.223068] [drm:intel_crt_detect_ddc] CRT not detected via DDC:0x50 [no valid EDID found] [ 169.223701] [drm:intel_display_power_put] disabling always-on [ 169.224359] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:VGA-1] disconnected [ 169.225093] [drm:drm_mode_getconnector] [CONNECTOR:21:?] [ 169.225729] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:21:DP-1] [ 169.226397] [drm:intel_dp_detect] [CONNECTOR:21:DP-1] [ 169.227349] [drm:intel_display_power_get] enabling always-on [ 169.228035] [drm:intel_display_power_put] disabling always-on [ 169.228697] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:21:DP-1] disconnected [ 169.229400] [drm:drm_mode_getconnector] [CONNECTOR:21:?] [ 169.230082] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:21:DP-1] [ 169.230803] [drm:intel_dp_detect] [CONNECTOR:21:DP-1] [ 169.231515] [drm:intel_display_power_get] enabling always-on [ 169.232264] [drm:intel_display_power_put] disabling always-on [ 169.232966] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:21:DP-1] disconnected [ 169.233713] [drm:drm_mode_getconnector] [CONNECTOR:27:?] [ 169.234409] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:HDMI-A-1] [ 169.235461] [drm:intel_hdmi_detect] [CONNECTOR:27:HDMI-A-1] [ 169.236216] [drm:intel_display_power_get] enabling always-on [ 169.237133] [drm:gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1) [ 169.237972] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpb [ 169.238757] [drm:intel_display_power_put] disabling always-on [ 169.239531] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:HDMI-A-1] disconnected [ 169.240322] [drm:drm_mode_getconnector] [CONNECTOR:27:?] [ 169.241105] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:HDMI-A-1] [ 169.241926] [drm:intel_hdmi_detect] [CONNECTOR:27:HDMI-A-1] [ 169.242770] [drm:intel_display_power_get] enabling always-on [ 169.243790] [drm:gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1) [ 169.244720] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpb [ 169.245550] [drm:intel_display_power_put] disabling always-on [ 169.246391] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:HDMI-A-1] disconnected [ 169.247255] [drm:drm_mode_getconnector] [CONNECTOR:30:?] [ 169.248112] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:30:DP-2] [ 169.248973] [drm:intel_dp_detect] [CONNECTOR:30:DP-2] [ 169.249837] [drm:intel_display_power_get] enabling always-on [ 169.250698] [drm:intel_display_power_put] disabling always-on [ 169.251546] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:30:DP-2] disconnected [ 169.252406] [drm:drm_mode_getconnector] [CONNECTOR:30:?] [ 169.253250] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:30:DP-2] [ 169.254111] [drm:intel_dp_detect] [CONNECTOR:30:DP-2] [ 169.254960] [drm:intel_display_power_get] enabling always-on [ 169.255803] [drm:intel_display_power_put] disabling always-on [ 169.256633] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:30:DP-2] disconnected [ 169.257480] [drm:drm_mode_getconnector] [CONNECTOR:34:?] [ 169.258310] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:34:HDMI-A-2] [ 169.259154] [drm:intel_hdmi_detect] [CONNECTOR:34:HDMI-A-2] [ 169.260001] [drm:intel_display_power_get] enabling always-on [ 169.261002] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1) [ 169.261932] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc [ 169.262778] [drm:intel_display_power_put] disabling always-on [ 169.263610] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:34:HDMI-A-2] disconnected [ 169.264454] [drm:drm_mode_getconnector] [CONNECTOR:34:?] [ 169.265285] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:34:HDMI-A-2] [ 169.266130] [drm:intel_hdmi_detect] [CONNECTOR:34:HDMI-A-2] [ 169.266975] [drm:intel_display_power_get] enabling always-on [ 169.267986] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1) [ 169.268924] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc [ 169.269778] [drm:intel_display_power_put] disabling always-on [ 169.270620] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:34:HDMI-A-2] disconnected [ 169.271482] [drm:drm_mode_getconnector] [CONNECTOR:36:?] [ 169.272334] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:36:HDMI-A-3] [ 169.273203] [drm:intel_hdmi_detect] [CONNECTOR:36:HDMI-A-3] [ 169.274072] [drm:intel_display_power_get] enabling always-on [ 169.275089] [drm:gmbus_xfer] GMBUS [i915 gmbus dpd] NAK for addr: 0050 r(1) [ 169.276040] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpd [ 169.276902] [drm:intel_display_power_put] disabling always-on [ 169.277762] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:36:HDMI-A-3] disconnected [ 169.278641] [drm:drm_mode_getconnector] [CONNECTOR:36:?] [ 169.279511] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:36:HDMI-A-3] [ 169.280386] [drm:intel_hdmi_detect] [CONNECTOR:36:HDMI-A-3] [ 169.281245] [drm:intel_display_power_get] enabling always-on [ 169.282264] [drm:gmbus_xfer] GMBUS [i915 gmbus dpd] NAK for addr: 0050 r(1) [ 169.283215] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpd [ 169.284078] [drm:intel_display_power_put] disabling always-on [ 169.284940] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:36:HDMI-A-3] disconnected [ 169.285954] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 169.285981] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 169.287303] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 169.287330] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 169.287346] [drm:drm_mode_getconnector] [CONNECTOR:18:?] [ 169.287359] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:VGA-1] [ 169.287374] [drm:intel_display_power_get] enabling always-on [ 169.294538] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga [ 169.294559] [drm:intel_display_power_put] disabling always-on [ 169.294627] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:VGA-1] probed modes : [ 169.294643] [drm:drm_mode_debug_printmodeline] Modeline 42:"1024x768" 60 65000 1024 1048 1184 1344 768 771 777 806 0x40 0xa [ 169.294658] [drm:drm_mode_debug_printmodeline] Modeline 40:"800x600" 60 40000 800 840 968 1056 600 601 605 628 0x40 0x5 [ 169.294673] [drm:drm_mode_debug_printmodeline] Modeline 39:"800x600" 56 36000 800 824 896 1024 600 601 603 625 0x40 0x5 [ 169.294687] [drm:drm_mode_debug_printmodeline] Modeline 41:"848x480" 60 33750 848 864 976 1088 480 486 494 517 0x40 0x5 [ 169.294701] [drm:drm_mode_debug_printmodeline] Modeline 38:"640x480" 60 25175 640 656 752 800 480 489 492 525 0x40 0xa [ 169.294718] [drm:drm_mode_getconnector] [CONNECTOR:18:?] [ 169.294931] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 169.294955] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 169.294970] [drm:drm_mode_getconnector] [CONNECTOR:21:?] [ 169.294982] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:21:DP-1] [ 169.294995] [drm:intel_dp_detect] [CONNECTOR:21:DP-1] [ 169.295010] [drm:intel_display_power_get] enabling always-on [ 169.295027] [drm:intel_display_power_put] disabling always-on [ 169.295042] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:21:DP-1] disconnected [ 169.295057] [drm:drm_mode_getconnector] [CONNECTOR:21:?] [ 169.295229] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:21:DP-1] [ 169.295243] [drm:intel_dp_detect] [CONNECTOR:21:DP-1] [ 169.295258] [drm:intel_display_power_get] enabling always-on [ 169.295275] [drm:intel_display_power_put] disabling always-on [ 169.295290] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:21:DP-1] disconnected [ 169.295313] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 169.295338] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 169.295353] [drm:drm_mode_getconnector] [CONNECTOR:27:?] [ 169.295365] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:HDMI-A-1] [ 169.295378] [drm:intel_hdmi_detect] [CONNECTOR:27:HDMI-A-1] [ 169.295559] [drm:intel_display_power_get] enabling always-on [ 169.295737] [drm:gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1) [ 169.295758] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpb [ 169.295776] [drm:intel_display_power_put] disabling always-on [ 169.295793] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:HDMI-A-1] disconnected [ 169.295808] [drm:drm_mode_getconnector] [CONNECTOR:27:?] [ 169.295820] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:HDMI-A-1] [ 169.295833] [drm:intel_hdmi_detect] [CONNECTOR:27:HDMI-A-1] [ 169.295847] [drm:intel_display_power_get] enabling always-on [ 169.296026] [drm:gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1) [ 169.296045] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpb [ 169.296063] [drm:intel_display_power_put] disabling always-on [ 169.296130] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:HDMI-A-1] disconnected [ 169.296155] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 169.296180] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 169.296196] [drm:drm_mode_getconnector] [CONNECTOR:30:?] [ 169.296209] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:30:DP-2] [ 169.296222] [drm:intel_dp_detect] [CONNECTOR:30:DP-2] [ 169.296237] [drm:intel_display_power_get] enabling always-on [ 169.296254] [drm:intel_display_power_put] disabling always-on [ 169.296378] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:30:DP-2] disconnected [ 169.296398] [drm:drm_mode_getconnector] [CONNECTOR:30:?] [ 169.296410] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:30:DP-2] [ 169.296423] [drm:intel_dp_detect] [CONNECTOR:30:DP-2] [ 169.296438] [drm:intel_display_power_get] enabling always-on [ 169.296454] [drm:intel_display_power_put] disabling always-on [ 169.296469] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:30:DP-2] disconnected [ 169.296492] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 169.296522] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 169.296539] [drm:drm_mode_getconnector] [CONNECTOR:34:?] [ 169.296553] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:34:HDMI-A-2] [ 169.296568] [drm:intel_hdmi_detect] [CONNECTOR:34:HDMI-A-2] [ 169.296588] [drm:intel_display_power_get] enabling always-on [ 169.296769] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1) [ 169.296789] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc [ 169.296807] [drm:intel_display_power_put] disabling always-on [ 169.296824] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:34:HDMI-A-2] disconnected [ 169.296840] [drm:drm_mode_getconnector] [CONNECTOR:34:?] [ 169.296853] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:34:HDMI-A-2] [ 169.296866] [drm:intel_hdmi_detect] [CONNECTOR:34:HDMI-A-2] [ 169.296881] [drm:intel_display_power_get] enabling always-on [ 169.297055] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1) [ 169.297074] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc [ 169.297092] [drm:intel_display_power_put] disabling always-on [ 169.297109] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:34:HDMI-A-2] disconnected [ 169.297133] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 169.297159] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 169.297176] [drm:drm_mode_getconnector] [CONNECTOR:36:?] [ 169.297188] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:36:HDMI-A-3] [ 169.297202] [drm:intel_hdmi_detect] [CONNECTOR:36:HDMI-A-3] [ 169.297216] [drm:intel_display_power_get] enabling always-on [ 169.297389] [drm:gmbus_xfer] GMBUS [i915 gmbus dpd] NAK for addr: 0050 r(1) [ 169.297408] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpd [ 169.297426] [drm:intel_display_power_put] disabling always-on [ 169.297443] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:36:HDMI-A-3] disconnected [ 169.297457] [drm:drm_mode_getconnector] [CONNECTOR:36:?] [ 169.297469] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:36:HDMI-A-3] [ 169.297482] [drm:intel_hdmi_detect] [CONNECTOR:36:HDMI-A-3] [ 169.297496] [drm:intel_display_power_get] enabling always-on [ 169.297687] [drm:gmbus_xfer] GMBUS [i915 gmbus dpd] NAK for addr: 0050 r(1) [ 169.297707] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpd [ 169.297725] [drm:intel_display_power_put] disabling always-on [ 169.297741] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:36:HDMI-A-3] disconnected [ 169.297785] kms_pipe_crc_basic: starting subtest hang-read-crc-pipe-B [ 169.298235] [drm:i915_ring_stop_set] Stopping rings 0x00000001 [ 174.930252] [drm] stuck on render ring [ 174.932758] [drm] GPU HANG: ecode 0:0x87f3fffe, in kms_pipe_crc_ba [4247], reason: Ring hung, action: reset [ 174.932814] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace. [ 174.932838] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel [ 174.932852] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue. [ 174.932867] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it. [ 174.932882] [drm] GPU crash dump saved to /sys/class/drm/card0/error [ 174.933611] [drm:i915_error_work_func] resetting chip [ 174.933846] [drm] Simulated gpu hang, resetting stop_rings [ 174.933859] drm/i915: Resetting chip after gpu hang [ 174.933899] [drm:init_status_page] render ring hws offset: 0x00011000 [ 174.935159] [drm:init_status_page] bsd ring hws offset: 0x00033000 [ 174.935210] [drm:init_status_page] blitter ring hws offset: 0x00054000 [ 174.935252] [drm:init_status_page] video enhancement ring hws offset: 0x00075000 [ 174.935676] [drm:add_framebuffer_internal] [FB:43] [ 174.939912] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 174.939954] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 174.939972] [drm:drm_mode_getconnector] [CONNECTOR:18:?] [ 174.939986] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:VGA-1] [ 174.940001] [drm:intel_display_power_get] enabling always-on [ 174.947167] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga [ 174.947188] [drm:intel_display_power_put] disabling always-on [ 174.947256] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:VGA-1] probed modes : [ 174.947272] [drm:drm_mode_debug_printmodeline] Modeline 42:"1024x768" 60 65000 1024 1048 1184 1344 768 771 777 806 0x40 0xa [ 174.947286] [drm:drm_mode_debug_printmodeline] Modeline 40:"800x600" 60 40000 800 840 968 1056 600 601 605 628 0x40 0x5 [ 174.947301] [drm:drm_mode_debug_printmodeline] Modeline 39:"800x600" 56 36000 800 824 896 1024 600 601 603 625 0x40 0x5 [ 174.947316] [drm:drm_mode_debug_printmodeline] Modeline 41:"848x480" 60 33750 848 864 976 1088 480 486 494 517 0x40 0x5 [ 174.947330] [drm:drm_mode_debug_printmodeline] Modeline 38:"640x480" 60 25175 640 656 752 800 480 489 492 525 0x40 0xa [ 174.947346] [drm:drm_mode_getconnector] [CONNECTOR:18:?] [ 174.947390] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 174.947415] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 174.947431] [drm:drm_mode_getconnector] [CONNECTOR:21:?] [ 174.947443] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:21:DP-1] [ 174.947457] [drm:intel_dp_detect] [CONNECTOR:21:DP-1] [ 174.947472] [drm:intel_display_power_get] enabling always-on [ 174.947490] [drm:intel_display_power_put] disabling always-on [ 174.947505] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:21:DP-1] disconnected [ 174.947521] [drm:drm_mode_getconnector] [CONNECTOR:21:?] [ 174.947533] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:21:DP-1] [ 174.947546] [drm:intel_dp_detect] [CONNECTOR:21:DP-1] [ 174.947560] [drm:intel_display_power_get] enabling always-on [ 174.947577] [drm:intel_display_power_put] disabling always-on [ 174.947593] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:21:DP-1] disconnected [ 174.947616] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 174.947640] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 174.947655] [drm:drm_mode_getconnector] [CONNECTOR:27:?] [ 174.947751] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:HDMI-A-1] [ 174.947765] [drm:intel_hdmi_detect] [CONNECTOR:27:HDMI-A-1] [ 174.947779] [drm:intel_display_power_get] enabling always-on [ 174.947995] [drm:gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1) [ 174.948019] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpb [ 174.948038] [drm:intel_display_power_put] disabling always-on [ 174.948055] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:HDMI-A-1] disconnected [ 174.948072] [drm:drm_mode_getconnector] [CONNECTOR:27:?] [ 174.948085] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:HDMI-A-1] [ 174.948098] [drm:intel_hdmi_detect] [CONNECTOR:27:HDMI-A-1] [ 174.948113] [drm:intel_display_power_get] enabling always-on [ 174.948518] [drm:gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1) [ 174.948550] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpb [ 174.948575] [drm:intel_display_power_put] disabling always-on [ 174.948598] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:HDMI-A-1] disconnected [ 174.948634] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 174.948671] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 174.948696] [drm:drm_mode_getconnector] [CONNECTOR:30:?] [ 174.948714] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:30:DP-2] [ 174.948733] [drm:intel_dp_detect] [CONNECTOR:30:DP-2] [ 174.948754] [drm:intel_display_power_get] enabling always-on [ 174.948778] [drm:intel_display_power_put] disabling always-on [ 174.948800] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:30:DP-2] disconnected [ 174.948821] [drm:drm_mode_getconnector] [CONNECTOR:30:?] [ 174.948839] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:30:DP-2] [ 174.948857] [drm:intel_dp_detect] [CONNECTOR:30:DP-2] [ 174.948878] [drm:intel_display_power_get] enabling always-on [ 174.948901] [drm:intel_display_power_put] disabling always-on [ 174.948923] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:30:DP-2] disconnected [ 174.948956] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 174.948991] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 174.949014] [drm:drm_mode_getconnector] [CONNECTOR:34:?] [ 174.949032] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:34:HDMI-A-2] [ 174.949050] [drm:intel_hdmi_detect] [CONNECTOR:34:HDMI-A-2] [ 174.949197] [drm:intel_display_power_get] enabling always-on [ 174.949389] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1) [ 174.949418] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc [ 174.949443] [drm:intel_display_power_put] disabling always-on [ 174.949466] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:34:HDMI-A-2] disconnected [ 174.949488] [drm:drm_mode_getconnector] [CONNECTOR:34:?] [ 174.949506] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:34:HDMI-A-2] [ 174.949524] [drm:intel_hdmi_detect] [CONNECTOR:34:HDMI-A-2] [ 174.949544] [drm:intel_display_power_get] enabling always-on [ 174.949739] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] NAK for addr: 0050 r(1) [ 174.949766] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc [ 174.949785] [drm:intel_display_power_put] disabling always-on [ 174.949801] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:34:HDMI-A-2] disconnected [ 174.949830] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 174.949856] [drm:drm_mode_getresources] CRTC[3] CONNECTORS[6] ENCODERS[10] [ 174.949873] [drm:drm_mode_getconnector] [CONNECTOR:36:?] [ 174.949886] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:36:HDMI-A-3] [ 174.949899] [drm:intel_hdmi_detect] [CONNECTOR:36:HDMI-A-3] [ 174.949915] [drm:intel_display_power_get] enabling always-on [ 174.950098] [drm:gmbus_xfer] GMBUS [i915 gmbus dpd] NAK for addr: 0050 r(1) [ 174.950117] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpd [ 174.950144] [drm:intel_display_power_put] disabling always-on [ 174.950163] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:36:HDMI-A-3] disconnected [ 174.950183] [drm:drm_mode_getconnector] [CONNECTOR:36:?] [ 174.950200] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:36:HDMI-A-3] [ 174.950215] [drm:intel_hdmi_detect] [CONNECTOR:36:HDMI-A-3] [ 174.950229] [drm:intel_display_power_get] enabling always-on [ 174.950414] [drm:gmbus_xfer] GMBUS [i915 gmbus dpd] NAK for addr: 0050 r(1) [ 174.950444] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpd [ 174.950469] [drm:intel_display_power_put] disabling always-on [ 174.950492] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:36:HDMI-A-3] disconnected [ 174.950530] [drm:drm_mode_setcrtc] [CRTC:12] [ 174.950586] [drm:drm_mode_setcrtc] [CONNECTOR:18:VGA-1] [ 174.950600] [drm:intel_crtc_set_config] [CRTC:12] [FB:43] #connectors=1 (x y) (0 0) [ 174.950635] [drm:intel_set_config_compute_mode_changes] inactive crtc, full mode set [ 174.950648] [drm:intel_set_config_compute_mode_changes] modes are different, full mode set [ 174.950662] [drm:drm_mode_debug_printmodeline] Modeline 0:"" 0 0 0 0 0 0 0 0 0 0 0x0 0x0 [ 174.950676] [drm:drm_mode_debug_printmodeline] Modeline 44:"1024x768" 60 65000 1024 1048 1184 1344 768 771 777 806 0x40 0xa [ 174.950690] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:12], mode_changed=1, fb_changed=0 [ 174.950754] [drm:intel_modeset_stage_output_state] encoder changed, full mode switch [ 174.950766] [drm:intel_modeset_stage_output_state] [CONNECTOR:18:VGA-1] to [CRTC:12] [ 174.950778] [drm:intel_modeset_stage_output_state] crtc changed, full mode switch [ 174.950791] [drm:intel_modeset_stage_output_state] crtc enabled, full mode switch [ 174.950811] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 2, prepare: 2, disable: 0 [ 174.950832] [drm:connected_sink_compute_bpp] [CONNECTOR:18:VGA-1] checking for sink bpp constrains [ 174.950848] [drm:ironlake_check_fdi_lanes] checking fdi config on pipe B, lanes 1 [ 174.950972] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 24, dithering: 0 [ 174.950987] [drm:intel_dump_pipe_config] [CRTC:12][modeset] config for pipe B [ 174.951003] [drm:intel_dump_pipe_config] cpu_transcoder: B [ 174.951019] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0 [ 174.951035] [drm:intel_dump_pipe_config] fdi/pch: 1, lanes: 1, gmch_m: 3029219, gmch_n: 4194304, link_m: 126217, link_n: 524288, tu: 64 [ 174.951050] [drm:intel_dump_pipe_config] dp: 0, gmch_m: 0, gmch_n: 0, link_m: 0, link_n: 0, tu: 0 [ 174.951066] [drm:intel_dump_pipe_config] dp: 0, gmch_m2: 0, gmch_n2: 0, link_m2: 0, link_n2: 0, tu2: 0 [ 174.951081] [drm:intel_dump_pipe_config] requested mode: [ 174.951097] [drm:drm_mode_debug_printmodeline] Modeline 0:"1024x768" 60 65000 1024 1048 1184 1344 768 771 777 806 0x40 0xa [ 174.951114] [drm:intel_dump_pipe_config] adjusted mode: [ 174.951130] [drm:drm_mode_debug_printmodeline] Modeline 0:"1024x768" 60 65000 1024 1048 1184 1344 768 771 777 806 0x40 0xa [ 174.951233] [drm:intel_dump_crtc_timings] crtc timings: 65000 1024 1048 1184 1344 768 771 777 806, type: 0x40 flags: 0xa [ 174.951256] [drm:intel_dump_pipe_config] port clock: 270000 [ 174.951276] [drm:intel_dump_pipe_config] pipe src size: 1024x768 [ 174.951298] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 174.951319] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 174.951342] [drm:intel_dump_pipe_config] ips: 0 [ 174.951363] [drm:intel_dump_pipe_config] double wide: 0 [ 174.951431] [drm:intel_display_power_get] enabling always-on [ 176.520445] Kernel panic - not syncing: Timeout synchronizing machine check over CPUs [ 177.551604] Shutting down cpus with NMI [ 177.562777] Kernel Offset: 0x0 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffff9fffffff) [ 177.563666] drm_kms_helper: panic occurred, switching back to text console [ 177.564624] [ 177.565511] ============================================= [ 177.566389] [ INFO: possible recursive locking detected ] [ 177.567268] 3.18.0-rc3_drm-intel-nightly_782baf_20141104_debug+ #1164 Not tainted [ 177.568162] --------------------------------------------- [ 177.569045] kms_pipe_crc_ba/4247 is trying to acquire lock: [ 177.569922] (&dev->mode_config.mutex){+.+.+.}, at: [] __drm_modeset_lock_all+0x6c/0x100 [drm] [ 177.570937] [ 177.570937] but task is already holding lock: [ 177.572671] (&dev->mode_config.mutex){+.+.+.}, at: [] __drm_modeset_lock_all+0x6c/0x100 [drm] [ 177.573707] [ 177.573707] other info that might help us debug this: [ 177.575478] Possible unsafe locking scenario: [ 177.575478] [ 177.577206] CPU0 [ 177.578064] ---- [ 177.578982] lock(&dev->mode_config.mutex); [ 177.579880] lock(&dev->mode_config.mutex); [ 177.580761] [ 177.580761] *** DEADLOCK *** [ 177.580761] [ 177.583085] May be due to missing lock nesting notation [ 177.583085] [ 177.584602] 5 locks held by kms_pipe_crc_ba/4247: [ 177.585370] #0: (&dev->mode_config.mutex){+.+.+.}, at: [] __drm_modeset_lock_all+0x6c/0x100 [drm] [ 177.586305] #1: (crtc_ww_class_acquire){+.+.+.}, at: [] __drm_modeset_lock_all+0x76/0x100 [drm] [ 177.587243] #2: (crtc_ww_class_mutex){+.+.+.}, at: [] drm_modeset_lock+0x5c/0xbc [drm] [ 177.588175] #3: (&(&dev_priv->uncore.lock)->rlock){-.-.+.}, at: [] hsw_write32+0x90/0x124 [i915] [ 177.589124] #4: (panic_lock){....+.}, at: [] panic+0x3d/0x1f5 [ 177.590055] [ 177.590055] stack backtrace: [ 177.591583] CPU: 7 PID: 4247 Comm: kms_pipe_crc_ba Not tainted 3.18.0-rc3_drm-intel-nightly_782baf_20141104_debug+ #1164 [ 177.592394] Hardware name: /DZ87KLT75K, BIOS KLZ8711D.86A.0336.2013.0516.1957 05/16/2013 [ 177.593214] ffffffff83eb7cd0 ffff88025fbca878 ffffffff8183ae58 0000000000000000 [ 177.594136] ffffffff83eb7cd0 ffff88025fbca948 ffffffff81074813 ffff88025fbca990 [ 177.595041] ffff88025340c000 0000000183e78bb0 ffff880200000000 28414289aca22785 [ 177.595939] Call Trace: [ 177.596721] <#MC> [] dump_stack+0x46/0x58 [ 177.597537] [] __lock_acquire+0x8b2/0x1803 [ 177.598326] [] ? create_object+0x17c/0x291 [ 177.599108] [] lock_acquire+0xd3/0x10d [ 177.599975] [] ? __drm_modeset_lock_all+0x6c/0x100 [drm] [ 177.600749] [] ? trace_hardirqs_off+0xd/0xf [ 177.601505] [] mutex_lock_nested+0x4b/0x2d2 [ 177.602252] [] ? __drm_modeset_lock_all+0x6c/0x100 [drm] [ 177.602998] [] ? __drm_modeset_lock_all+0x3e/0x100 [drm] [ 177.603717] [] ? kmemleak_alloc+0x25/0x41 [ 177.604417] [] ? kmem_cache_alloc_trace+0xb8/0x13c [ 177.605118] [] __drm_modeset_lock_all+0x6c/0x100 [drm] [ 177.605822] [] drm_modeset_lock_all+0x10/0x28 [drm] [ 177.606522] [] drm_fb_helper_pan_display+0x36/0xc5 [drm_kms_helper] [ 177.607219] [] fb_pan_display+0xed/0x131 [ 177.607904] [] bit_update_start+0x20/0x49 [ 177.608586] [] fbcon_switch+0x452/0x469 [ 177.609252] [] redraw_screen+0x112/0x1e3 [ 177.609900] [] fbcon_blank+0x1e5/0x26e [ 177.610550] [] ? mod_timer+0x12a/0x184 [ 177.611180] [] ? trace_hardirqs_off+0xd/0xf [ 177.611796] [] ? _raw_spin_unlock_irqrestore+0x38/0x46 [ 177.612417] [] ? mod_timer+0x153/0x184 [ 177.613035] [] do_unblank_screen+0xfa/0x173 [ 177.613656] [] unblank_screen+0x10/0x12 [ 177.614281] [] bust_spinlocks+0x14/0x28 [ 177.614911] [] panic+0x108/0x1f5 [ 177.615541] [] mce_panic+0x159/0x18b [ 177.616177] [] mce_timed_out+0x46/0x67 [ 177.616812] [] do_machine_check+0x192/0x766 [ 177.617462] [] ? hsw_unclaimed_reg_detect.isra.6+0x20/0x44 [i915] [ 177.618122] [] machine_check+0x1e/0x30 [ 177.618785] [] ? hsw_unclaimed_reg_detect.isra.6+0x20/0x44 [i915] [ 177.619451] <> [] hsw_write32+0xf9/0x124 [i915] [ 177.620172] [] hsw_fdi_link_train+0xf6/0x34a [i915] [ 177.620844] [] haswell_crtc_enable+0x4a4/0x8f5 [i915] [ 177.621496] [] ? trace_hardirqs_on+0xd/0xf [ 177.622142] [] __intel_set_mode+0x12f4/0x1426 [i915] [ 177.622779] [] intel_set_mode+0x16/0x2f [i915] [ 177.623397] [] intel_crtc_set_config+0x77c/0xae0 [i915] [ 177.624013] [] drm_mode_set_config_internal+0x57/0xe4 [drm] [ 177.624637] [] drm_mode_setcrtc+0x3ef/0x499 [drm] [ 177.625239] [] drm_ioctl+0x2be/0x423 [drm] [ 177.625824] [] ? drm_mode_setplane+0x1d9/0x1d9 [drm] [ 177.626392] [] ? trace_hardirqs_on_caller+0x142/0x19e [ 177.626962] [] do_vfs_ioctl+0x455/0x49f [ 177.627526] [] ? __audit_syscall_entry+0xbf/0xe1 [ 177.628087] [] ? do_audit_syscall_entry+0x63/0x65 [ 177.628645] [] SyS_ioctl+0x53/0x81 [ 177.629198] [] system_call_fastpath+0x12/0x17