[Bug 103170] [CI] igt at kms_* - Incomplete - System hang / timeout

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103170

--- Comment #27 from Marta Löfstedt <marta.lofstedt at intel.com> ---
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3307/shard-kbl7/igt@syncobj_wait@single-wait-all-signaled.html

First dmesg:
<5>[   19.878462] owatch: Using watchdog device /dev/watchdog0
<5>[   19.878558] owatch: Watchdog /dev/watchdog0 is a software watchdog
<5>[   19.879243] owatch: timeout for /dev/watchdog0 set to 370 (requested 370)

Last dmesg:
<7>[ 1035.227093] [drm:init_workarounds_ring [i915]] rcs0: Number of context
specific w/a: 15
<7>[ 1037.210865] [drm:missed_breadcrumb [i915]] rcs0 missed breadcrumb at
intel_breadcrumbs_hangcheck+0x68/0x90 [i915], irq posted? yes, current
seqno=328fd, last=328fd
<7>[ 1037.226403] [IGT] syncobj_wait: starting subtest single-wait-all-signaled
<7>[ 1037.226735] [IGT] syncobj_wait: exiting, ret=0

run.log:
Build timed out (after 17 minutes). Marking the build as aborted.
...
CI_IGT_test runtime 1032 seconds

Note dmesg is littered with:
<3>[  198.199228] [drm:drm_atomic_helper_wait_for_flip_done] *ERROR*
[CRTC:36:pipe A] flip_done timed out
...
<7>[  267.866122] [drm:missed_breadcrumb [i915]] rcs0 missed breadcrumb at
intel_breadcrumbs_hangcheck+0x68/0x90 [i915], irq posted? yes, current
seqno=327fd, last=327fd
<3>[  268.067942] [drm:intel_engines_park [i915]] *ERROR* rcs0 is not idle
before parking
<7>[  268.068180] intel_engines_park rcs0
<7>[  268.068193] intel_engines_park    current seqno 327fd, last 327fd,
hangcheck 327fd [202 ms], inflight 0
<7>[  268.068202] intel_engines_park    Reset count: 4
<7>[  268.068230] intel_engines_park    Requests:
<7>[  268.069235] intel_engines_park    RING_START: 0x0000f000 [0x00000000]
<7>[  268.069263] intel_engines_park    RING_HEAD:  0x00000c10 [0x00000000]
<7>[  268.069281] intel_engines_park    RING_TAIL:  0x00000c10 [0x00000000]
<7>[  268.069313] intel_engines_park    RING_CTL:   0x00003000
<7>[  268.069337] intel_engines_park    RING_MODE:  0x00000200 [idle]
<7>[  268.069366] intel_engines_park    ACTHD:  0x00000000_00000c10
<7>[  268.069391] intel_engines_park    BBADDR: 0x00000000_00000004
<7>[  268.069413] intel_engines_park    Execlist status: 0x00000301 00000000
<7>[  268.069435] intel_engines_park    Execlist CSB read 0 [-1 cached], write
1 [1 from hws], interrupt posted? no
<7>[  268.069460] intel_engines_park    Execlist CSB[1]: 0x00000018 [0x00000018
in hwsp], context: 2 [2 in hwsp]
<7>[  268.069476] intel_engines_park            ELSP[0] count=1, 
<7>[  268.069499] intel_engines_park rq: 327fd! [2:10] prio=0 @ 18117ms:
kms_flip[2823]/0
<7>[  268.069521] intel_engines_park            ELSP[1] idle
<7>[  268.069543] intel_engines_park            HW active? 0x1
<7>[  268.069616] intel_engines_park

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