[Bug 103514] [BAT] igt at gem_exec_* - Failed assertion: !"GPU hung" - and its aftermath

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103514

Marta Löfstedt <marta.lofstedt at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[BAT]                       |[BAT]  igt at gem_exec_* -
                   |igt at gem_exec_nop@basic-[par |Failed assertion: !"GPU
                   |allel | series] - Failed    |hung" - and its aftermath
                   |assertion: !"GPU hung" -    |
                   |and its aftermath           |

--- Comment #2 from Marta Löfstedt <marta.lofstedt at intel.com> ---
On CI_DRM_3321 the issue started here:

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3321/fi-glk-dsi/igt@gem_exec_flush@basic-batch-kernel-default-uc.html


(gem_exec_flush:1727) igt-aux-CRITICAL: Test assertion failure function
sig_abort, file igt_aux.c:484:
(gem_exec_flush:1727) igt-aux-CRITICAL: Failed assertion: !"GPU hung"
Subtest basic-batch-kernel-default-uc failed.

Then dmesg is filled with:
[  144.151041] [drm:gen8_irq_handler [i915]] *ERROR* Fault errors on pipe A:
0x00000080

this cause a lot of following tests to either be skipped or dmesg-warn.

but then from:
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3321/fi-glk-dsi/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-b.html
all the following tests pass.
However, the machine did not boot up for CI_DRM_3322 and CI_DRM_3323.
When rebooting manually in the lab the display was full of garbage.

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