igt@i915_selftest@live_gt_pm - dmesg-fail - warning: pcode (read from mbox 9) mailbox access failed for st_llc_verify [i915]: -110

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7886/fi-tgl-dsi/igt@i915_selftest@live_gt_pm.html

i915_selftest:5175) igt_kmod-WARNING: i915: Running gt_pm
(i915_selftest:5175) igt_kmod-WARNING: i915: Running intel_gt_pm_live_selftests/live_rc6_manual
(i915_selftest:5175) igt_kmod-WARNING: i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling always-on
(i915_selftest:5175) igt_kmod-WARNING: i915: Running intel_gt_pm_live_selftests/live_gt_resume
(i915_selftest:5175) igt_kmod-WARNING: i915 0000:00:02.0: [drm:intel_power_well_enable [i915]] enabling always-on
(i915_selftest:5175) igt_kmod-WARNING: i915 0000:00:02.0: [drm:sandybridge_pcode_read [i915]] warning: pcode (read from mbox 9) mailbox access failed for st_llc_verify [i915]: -110
(i915_selftest:5175) igt_kmod-WARNING: Failed to read freq table[18], range [2, 22]
(i915_selftest:5175) igt_kmod-WARNING: llc state not restored upon resume!
(i915_selftest:5175) igt_kmod-WARNING: intel_gt_set_wedged called from intel_gt_set_wedged_on_init+0x15/0x20 [i915]
(i915_selftest:5175) igt_kmod-WARNING: i915/intel_gt_pm_live_selftests: live_gt_resume failed with error -5
(i915_selftest:5175) igt_kmod-WARNING: i915 0000:00:02.0: [drm:intel_power_well_enable [i915]] enabling DC off
(i915_selftest:5175) igt_kmod-WARNING: i915 0000:00:02.0: [drm:gen9_set_dc_state [i915]] Setting DC state from 02 to 00
(i915_selftest:5175) igt_kmod-WARNING: [drm:intel_combo_phy_init [i915]] Combo PHY A already enabled, won't reprogram it.
(i915_selftest:5175) igt_kmod-WARNING: [drm:intel_combo_phy_init [i915]] Combo PHY B already enabled, won't reprogram it.
(i915_selftest:5175) igt_kmod-WARNING: i915 0000:00:02.0: [drm:intel_power_well_enable [i915]] enabling power well 2
(i915_selftest:5175) igt_kmod-WARNING: i915 0000:00:02.0: [drm:intel_power_well_enable [i915]] enabling power well 3
(i915_selftest:5175) igt_kmod-WARNING: i915 0000:00:02.0: [drm:intel_power_well_enable [i915]] enabling power well 4
(i915_selftest:5175) igt_kmod-WARNING: i915 0000:00:02.0: [drm:intel_power_well_enable [i915]] enabling power well 5
(i915_selftest:5175) igt_kmod-WARNING: i915 0000:00:02.0: [drm:i915_hdcp_component_unbind [i915]] I915 HDCP comp unbind
(i915_selftest:5175) igt_kmod-WARNING: i915: probe of 0000:00:02.0 failed with error -5
(i915_selftest:5175) igt_kmod-CRITICAL: Test assertion failure function igt_kselftest_execute, file ../lib/igt_kmod.c:588:
(i915_selftest:5175) igt_kmod-CRITICAL: Failed assertion: err == 0
(i915_selftest:5175) igt_kmod-CRITICAL: kselftest "i915 igt__26__live_gt_pm=1 live_selftests=-1 disable_display=1 st_filter=" failed: Input/output error [5]
Subtest live_gt_pm failed.
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