https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_194/fi-icl-u3/igt@gem_exec_schedule@preemptive-hang-vebox.html <6> [852.129571] Console: switching to colour dummy device 80x25 <6> [852.129657] [IGT] gem_exec_schedule: executing <5> [852.136373] Setting dangerous option reset - tainting kernel <5> [852.148153] Setting dangerous option reset - tainting kernel <5> [852.149296] Setting dangerous option reset - tainting kernel <5> [852.163976] Setting dangerous option reset - tainting kernel <5> [852.164505] Setting dangerous option reset - tainting kernel <5> [852.174925] Setting dangerous option reset - tainting kernel <5> [852.175675] Setting dangerous option reset - tainting kernel <5> [852.188576] Setting dangerous option reset - tainting kernel <6> [852.188640] [IGT] gem_exec_schedule: starting subtest preemptive-hang-vebox <7> [852.211119] [drm:gen8_de_irq_handler [i915]] hotplug event received, stat 0x01000000, dig 0x0000888a, pins 0x00000040, long 0x00000040 <7> [852.211184] [drm:intel_hpd_irq_handler [i915]] Received HPD interrupt on PIN 6 - cnt: 20 <7> [852.211354] [drm:i915_hotplug_work_func [i915]] running encoder hotplug functions <7> [852.211420] [drm:i915_hotplug_work_func [i915]] Connector HDMI-A-2 (pin 6) received hotplug event. <7> [852.211476] [drm:intel_hdmi_detect [i915]] [CONNECTOR:211:HDMI-A-2] <7> [852.238653] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus tc1] NAK for addr: 0040 w(1) <7> [852.238712] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus tc1] NAK on first message, retry <7> [852.239076] [drm:do_gmbus_xfer [i915]] GMBUS [i915 gmbus tc1] NAK for addr: 0040 w(1) <7> [852.239126] [drm:drm_dp_dual_mode_detect] DP dual mode HDMI ID: (err -6) <7> [852.239134] [drm:drm_detect_monitor_audio] Monitor has basic audio support <7> [852.239190] [drm:intel_encoder_hotplug [i915]] [CONNECTOR:211:HDMI-A-2] status updated from disconnected to connected <7> [854.993269] [drm:edp_panel_vdd_off_sync [i915]] Turning eDP port A VDD off <7> [854.993488] [drm:edp_panel_vdd_off_sync [i915]] PP_STATUS: 0x80000008 PP_CONTROL: 0x00000067 <7> [856.464303] missed_breadcrumb vecs0 missed breadcrumb at intel_breadcrumbs_hangcheck+0x51/0x70 [i915] <7> [856.464358] missed_breadcrumb current seqno 23, last 25, hangcheck 23 [2048 ms] <7> [856.464374] missed_breadcrumb Reset count: 0 (global 5) <7> [856.464390] missed_breadcrumb Requests: <7> [856.464418] missed_breadcrumb first 24 [523:1] prio=4095 @ 4269ms: gem_exec_schedu[1946]/1 <7> [856.464442] missed_breadcrumb last 25 [513:1] prio=-4090 @ 4275ms: gem_exec_schedu[1946]/2 <7> [856.464456] missed_breadcrumb active 24 [523:1] prio=4095 @ 4269ms: gem_exec_schedu[1946]/1 <7> [856.464468] missed_breadcrumb ring->start: 0x01ff0000 <7> [856.464477] missed_breadcrumb ring->head: 0x00000000 <7> [856.464485] missed_breadcrumb ring->tail: 0x00000040 <7> [856.464494] missed_breadcrumb ring->emit: 0x00000048 <7> [856.464504] missed_breadcrumb ring->space: 0x00003f78 <7> [856.464516] missed_breadcrumb [head 0000, postfix 0028, tail 0040, batch 0x00000000_00040000]: <7> [856.464567] missed_breadcrumb [0000] 13244002 00000104 00000000 00000000 04000001 18800101 00040000 00000000 <7> [856.464587] missed_breadcrumb [0020] 04000000 00000000 13004002 fffc40c4 00000000 00000024 01000000 04000001 <7> [856.464641] missed_breadcrumb RING_START: 0x01ff0000 <7> [856.464654] missed_breadcrumb RING_HEAD: 0x00000020 <7> [856.464667] missed_breadcrumb RING_TAIL: 0x00000040 <7> [856.464683] missed_breadcrumb RING_CTL: 0x00003001 <7> [856.464701] missed_breadcrumb RING_MODE: 0x00000000 <7> [856.464714] missed_breadcrumb RING_IMR: 00000000 <7> [856.464733] missed_breadcrumb ACTHD: 0x00000000_00040240 <7> [856.464754] missed_breadcrumb BBADDR: 0x00000000_00040041 <7> [856.464773] missed_breadcrumb DMA_FADDR: 0x00000000_000411c0 <7> [856.464786] missed_breadcrumb IPEIR: 0x00000000 <7> [856.464801] missed_breadcrumb IPEHR: 0x18800101 <7> [856.464817] missed_breadcrumb Execlist status: 0x00001098 40000040 <7> [856.464832] missed_breadcrumb Execlist CSB read 0, write 0 [mmio:0], tasklet queued? no (enabled) <7> [856.464851] missed_breadcrumb ELSP[0] count=1, ring->start=01ff0000, rq: 24 [523:1] prio=4095 @ 4269ms: gem_exec_schedu[1946]/1 <7> [856.464867] missed_breadcrumb ELSP[1] count=1, ring->start=0000b000, rq: 25 [513:1] prio=-4090 @ 4275ms: gem_exec_schedu[1946]/2 <7> [856.464876] missed_breadcrumb HW active? 0x5 <7> [856.464893] missed_breadcrumb E 24 [523:1] prio=4095 @ 4269ms: gem_exec_schedu[1946]/1 <7> [856.464908] missed_breadcrumb E 25 [513:1] prio=-4090 @ 4275ms: gem_exec_schedu[1946]/2 <7> [856.464919] missed_breadcrumb Queue priority: -4090 <7> [856.464934] missed_breadcrumb Q 0 [514:1] prio=-4090 @ 4275ms: gem_exec_schedu[1946]/2 <7> [856.464947] missed_breadcrumb Q 0 [515:1] prio=-4090 @ 4274ms: gem_exec_schedu[1946]/2 <7> [856.464960] missed_breadcrumb Q 0 [516:1] prio=-4090 @ 4274ms: gem_exec_schedu[1946]/2 <7> [856.464973] missed_breadcrumb Q 0 [517:1] prio=-4090 @ 4273ms: gem_exec_schedu[1946]/2 <7> [856.464988] missed_breadcrumb Q 0 [518:1] prio=-4090 @ 4273ms: gem_exec_schedu[1946]/2 <7> [856.465003] missed_breadcrumb Q 0 [519:1] prio=-4090 @ 4273ms: gem_exec_schedu[1946]/2 <7> [856.465016] missed_breadcrumb Q 0 [51a:1] prio=-4090 @ 4272ms: gem_exec_schedu[1946]/2 <7> [856.465027] missed_breadcrumb ...skipping 7 queued requests... <7> [856.465040] missed_breadcrumb Q 0 [522:1] prio=-4090 @ 4269ms: gem_exec_schedu[1946]/2 <7> [856.465055] missed_breadcrumb gem_exec_schedu [1946:S] waiting for 24 <7> [856.465066] missed_breadcrumb HWSP: <7> [856.465080] missed_breadcrumb [0000] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 <7> [856.465088] missed_breadcrumb * <7> [856.465104] missed_breadcrumb [0040] 00000001 40000000 00000018 40000000 00000001 40000000 00008002 40000040 <7> [856.465119] missed_breadcrumb [0060] 00000002 40000040 00000018 40000020 00000000 00000000 00000000 00000000 <7> [856.465133] missed_breadcrumb [0080] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 <7> [856.465144] missed_breadcrumb * <7> [856.465160] missed_breadcrumb [00c0] 00000023 00000000 00000000 00000000 00000000 00000000 00000000 00000000 <7> [856.465175] missed_breadcrumb [00e0] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 <7> [856.465183] missed_breadcrumb * <7> [856.465194] missed_breadcrumb Idle? no
The CI Bug Log issue associated to this bug has been updated. ### New filters associated * ICL: igt@gem_exec_schedule@preemptive-hang-vebox - incomplete - missed_breadcrumb vecs0 missed breadcrumb at intel_breadcrumbs_hangcheck - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_194/fi-icl-u3/igt@gem_exec_schedule@preemptive-hang-vebox.html
Missed breadcrumb is perfectly normal debug here, it's the precursor to us stopping a GPU hang. The machine disappeared between the breadcrumb timer and the hangcheck timer.
Also, not seen again in 700 runs. Resolving.
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