[Bug 94846] New: [BAT BSW] GPU hang in igt/gem_sync igt/gem_store_dw_loop

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94846

            Bug ID: 94846
           Summary: [BAT BSW] GPU hang in igt/gem_sync
                    igt/gem_store_dw_loop
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: mika.kuoppala at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 122766
  --> https://bugs.freedesktop.org/attachment.cgi?id=122766&action=edit
dmesg during piglit run

In CI/Bat: igt/gem_sync or igt/gem_store_dw_loop gpu hangs and the subsequent
recovery fails also, leading to multiple gpu hangs in a row.

Relevant parts in the first ocurrence:
[  400.772446] gem_storedw_loop: starting subtest basic-blt
[  401.625303] [drm:cherryview_enable_rps] GT fifo had a previous error 1080000
[  401.634253] [drm:cherryview_enable_rps] GPLL enabled? yes
[  401.634262] [drm:cherryview_enable_rps] GPU status: 0x00002010
[  401.634266] [drm:cherryview_enable_rps] current GPU freq: 320 MHz (32)
[  401.634270] [drm:cherryview_enable_rps] setting GPU freq to 320 MHz (32)
[  403.196027] r8169 0000:03:00.0 eth0: link up
[  407.804316] [drm:intel_get_hpd_pins] hotplug event received, stat
0x00400000, dig 0x00400000, pins 0x00000080
[  407.804330] [drm:intel_hpd_irq_handler] digital hpd port D - long
[  407.804336] [drm:intel_hpd_irq_storm_detect] Received HPD interrupt on PIN 7
- cnt: 0
[  407.805358] [drm:intel_dp_hpd_pulse] got hpd irq on port D - long
[  407.805520] [drm:i915_hotplug_work_func] running encoder hotplug functions
[  407.805530] [drm:i915_hotplug_work_func] Connector HDMI-A-2 (pin 7) received
hotplug event.
[  407.805537] [drm:intel_hdmi_detect] [CONNECTOR:47:HDMI-A-2]
[  407.893070] [drm:intel_hdmi_detect] Live status not up!
[  407.893114] [drm:intel_hpd_irq_event] [CONNECTOR:47:HDMI-A-2] status updated
from connected to disconnected
[  407.893130] [drm:i915_hotplug_work_func] Connector DP-2 (pin 7) received
hotplug event.
[  407.893137] [drm:intel_dp_detect] [CONNECTOR:49:DP-2]
[  407.904450] [drm:intel_get_hpd_pins] hotplug event received, stat
0x00400000, dig 0x00400000, pins 0x00000080
[  407.904461] [drm:intel_hpd_irq_handler] digital hpd port D - long
[  407.904466] [drm:intel_hpd_irq_storm_detect] Received HPD interrupt on PIN 7
- cnt: 1
[  407.904589] [drm:intel_dp_hpd_pulse] got hpd irq on port D - long
[  407.907929] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064
[  407.910972] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064
[  407.916397] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064
[  407.952027] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064
[  407.954059] [drm:i915_hotplug_work_func] running encoder hotplug functions
[  407.954068] [drm:i915_hotplug_work_func] Connector HDMI-A-2 (pin 7) received
hotplug event.
[  407.954074] [drm:intel_hdmi_detect] [CONNECTOR:47:HDMI-A-2]
[  408.022247] [drm:drm_detect_monitor_audio] Monitor has basic audio support
[  408.022294] [drm:intel_hpd_irq_event] [CONNECTOR:47:HDMI-A-2] status updated
from disconnected to connected
[  408.022314] [drm:i915_hotplug_work_func] Connector DP-2 (pin 7) received
hotplug event.
[  408.022332] [drm:intel_dp_detect] [CONNECTOR:49:DP-2]
[  408.076962] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064
[  408.131936] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064
[  408.188905] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064
[  408.245874] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064
[  413.620584] [drm] stuck on blitter ring
[  413.638340] [drm] GPU HANG: ecode 8:1:0xfffffffe, in gem_storedw_loo [6150],
reason: Engine(s) hung, action: reset
[  413.643244] [drm:i915_reset_and_wakeup] resetting chip

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