https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_153/fi-kbl-r/igt@perf@enable-disable.html

<6> [199.758561] Console: switching to colour dummy device 80x25
<6> [199.758606] [IGT] perf: executing
<6> [199.762047] [IGT] perf: starting subtest enable-disable
<7> [199.799836] [drm:i915_perf_open_ioctl [i915]] OA Buffer initialized, gtt offset = 0x2000000, vaddr = 0000000081971ab2
<7> [199.800201] [drm:intel_power_well_enable [i915]] enabling DC off
<7> [199.800237] [drm:gen9_set_dc_state [i915]] Setting DC state from 02 to 00
<7> [203.475469] missed_breadcrumb rcs0 missed breadcrumb at intel_breadcrumbs_hangcheck+0x51/0x70 [i915]
<7> [203.475476] missed_breadcrumb \x09current seqno 50, last 51, hangcheck 50 [1983 ms]
<7> [203.475480] missed_breadcrumb \x09Reset count: 2 (global 0)
<7> [203.475483] missed_breadcrumb \x09Requests:
<7> [203.475490] missed_breadcrumb \x09\x09first  51 [1831:50] prio=3 @ 3481ms: perf[2324]/1
<7> [203.475494] missed_breadcrumb \x09\x09last   51 [1831:50] prio=3 @ 3481ms: perf[2324]/1
<7> [203.475499] missed_breadcrumb \x09\x09active 51 [1831:50] prio=3 @ 3481ms: perf[2324]/1
<7> [203.475503] missed_breadcrumb \x09\x09ring->start:  0x00009000
<7> [203.475506] missed_breadcrumb \x09\x09ring->head:   0x000029f8
<7> [203.475508] missed_breadcrumb \x09\x09ring->tail:   0x00002a78
<7> [203.475511] missed_breadcrumb \x09\x09ring->emit:   0x00002a80
<7> [203.475514] missed_breadcrumb \x09\x09ring->space:  0x00001540
<7> [203.475519] missed_breadcrumb [head 29f8, postfix 2a58, tail 2a80, batch 0x00000000_01001000]:
<7> [203.475541] missed_breadcrumb [0000] 7a000004 00000000 00000000 00000000 00000000 00000000 7a000004 01144c1c
<7> [203.475547] missed_breadcrumb [0020] fffd0080 00000000 00000000 00000000 04000001 18800101 01001000 00000000
<7> [203.475552] missed_breadcrumb [0040] 04000000 00000000 7a000004 001010a1 fffd0080 00000000 00000000 00000000
<7> [203.475557] missed_breadcrumb [0060] 7a000004 01104000 fffd10c0 00000000 00000051 00000000 01000000 04000001
<7> [203.475561] missed_breadcrumb [0080] 02800000 00000000
<7> [203.475574] missed_breadcrumb \x09RING_START: 0x00009000
<7> [203.475579] missed_breadcrumb \x09RING_HEAD:  0x00002a58
<7> [203.475582] missed_breadcrumb \x09RING_TAIL:  0x00002a78
<7> [203.475586] missed_breadcrumb \x09RING_CTL:   0x00003001
<7> [203.475591] missed_breadcrumb \x09RING_MODE:  0x00000000
<7> [203.475595] missed_breadcrumb \x09RING_IMR: fffffefe
<7> [203.475600] missed_breadcrumb \x09ACTHD:  0x00000000_00002a58
<7> [203.475605] missed_breadcrumb \x09BBADDR: 0x00000000_0100147c
<7> [203.475611] missed_breadcrumb \x09DMA_FADDR: 0x00000000_0000ba78
<7> [203.475615] missed_breadcrumb \x09IPEIR: 0x00000000
<7> [203.475618] missed_breadcrumb \x09IPEHR: 0x7a000004
<7> [203.475623] missed_breadcrumb \x09Execlist status: 0x00054032 00000002
<7> [203.475627] missed_breadcrumb \x09Execlist CSB read 2, write 2 [mmio:2], tasklet queued? no (enabled)
<7> [203.475633] missed_breadcrumb \x09\x09ELSP[0] count=1, ring->start=00009000, rq: 51 [1831:50] prio=3 @ 3481ms: perf[2324]/1
<7> [203.475636] missed_breadcrumb \x09\x09ELSP[1] idle
<7> [203.475639] missed_breadcrumb \x09\x09HW active? 0x5
<7> [203.475644] missed_breadcrumb \x09\x09E 51 [1831:50] prio=3 @ 3481ms: perf[2324]/1
<7> [203.475648] missed_breadcrumb \x09\x09Queue priority: -2147483648
<7> [203.475653] missed_breadcrumb \x09perf [2324:R] waiting for 51
<7> [203.475656] missed_breadcrumb \x09perf [2325:S] waiting for 51
<7> [203.475660] missed_breadcrumb IRQ? 0x1 (breadcrumbs? yes)
<7> [203.475662] missed_breadcrumb HWSP:
<7> [203.475667] missed_breadcrumb [0000] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
<7> [203.475670] missed_breadcrumb *
<7> [203.475676] missed_breadcrumb [0040] 00000001 00000000 00000018 00000002 00000001 00000000 00000018 00000002
<7> [203.475680] missed_breadcrumb [0060] 00000001 00000000 00000018 00000002 00000000 00000000 00000000 00000002
<7> [203.475685] missed_breadcrumb [0080] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
<7> [203.475687] missed_breadcrumb *
<7> [203.475693] missed_breadcrumb [00c0] 00000050 00000000 00000000 00000000 00000000 00000000 00000000 00000000
<7> [203.475697] missed_breadcrumb [00e0] 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
<7> [203.475700] missed_breadcrumb *
<7> [203.475703] missed_breadcrumb Idle? no
<7> [207.508127] hangcheck rcs0
<7> [207.508133] hangcheck \x09current seqno 50, last 51, hangcheck 50 [6016 ms]
<7> [207.508136] hangcheck \x09Reset count: 2 (global 0)
<7> [207.508150] hangcheck \x09Requests:
<7> [207.508171] hangcheck \x09\x09first  51 [1831:50] prio=3 @ 7514ms: perf[2324]/1
<7> [207.508176] hangcheck \x09\x09last   51 [1831:50] prio=3 @ 7514ms: perf[2324]/1
<7> [207.508185] hangcheck \x09\x09active 51 [1831:50] prio=3 @ 7514ms: perf[2324]/1
<7> [207.508189] hangcheck \x09\x09ring->start:  0x00009000
<7> [207.508192] hangcheck \x09\x09ring->head:   0x000029f8