[Bug 100018] New: [BAT][BDW GVT] *ERROR* error during SBI read of reg 2a00

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100018

            Bug ID: 100018
           Summary: [BAT][BDW GVT] *ERROR* error during SBI read of reg
                    2a00
           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: martin.peres at free.fr
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Starting from CI_DRM_2253, we get the following failures on fi-bdw-gvtdvm when
loading the driver or suspending:

[  528.398455] [drm:intel_sbi_read [i915]] *ERROR* error during SBI read of reg
2a00
[  528.398519] [drm:intel_sbi_write [i915]] *ERROR* error during SBI write of 0
to reg 2a00

Here is the actual list of tests:
 - igt at drv_module_reload@basic-reload-final :
https://intel-gfx-ci.01.org/CI/CI_DRM_2255/fi-bdw-gvtdvm/igt@drv_module_reload@basic-reload-final.html
 - igt at gem_exec_suspend@basic-s3 :
https://intel-gfx-ci.01.org/CI/CI_DRM_2255/fi-bdw-gvtdvm/igt@gem_exec_suspend@basic-s3.html
 - igt at kms_pipe_crc_basic@suspend-read-crc-pipe-a :
https://intel-gfx-ci.01.org/CI/CI_DRM_2255/fi-bdw-gvtdvm/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html
 - igt at kms_pipe_crc_basic@suspend-read-crc-pipe-b :
https://intel-gfx-ci.01.org/CI/CI_DRM_2255/fi-bdw-gvtdvm/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-b.html
 - igt at kms_pipe_crc_basic@suspend-read-crc-pipe-c :
https://intel-gfx-ci.01.org/CI/CI_DRM_2255/fi-bdw-gvtdvm/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-c.html
 - igt at drv_module_reload@basic-reload-inject :
https://intel-gfx-ci.01.org/CI/CI_DRM_2255/fi-bdw-gvtdvm/igt@drv_module_reload@basic-reload-inject.html
 - igt at drv_module_reload@basic-reload :
https://intel-gfx-ci.01.org/CI/CI_DRM_2255/fi-bdw-gvtdvm/igt@drv_module_reload@basic-reload.html
 - igt at gem_exec_suspend@basic-s4-devices :
https://intel-gfx-ci.01.org/CI/CI_DRM_2255/fi-bdw-gvtdvm/igt@gem_exec_suspend@basic-s4-devices.html

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