[Bug 104871] New: [IGT] igt at gem_sync@preempt-blt Failed assertion !"GPU hung"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104871

            Bug ID: 104871
           Summary: [IGT] igt at gem_sync@preempt-blt Failed assertion !"GPU
                    hung"
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: ricardo.o.perez at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 137072
  --> https://bugs.freedesktop.org/attachment.cgi?id=137072&action=edit
CFL-dmesg-kernel-logs

For CoffeeLake S UDIMM RVP QA system, the following test is failing:

igt at gem_sync@preempt-blt

Running:
IGT-Version: 1.21-g37bd27f (x86_64) (Linux:
4.15.0-drm-intel-qa-ww5-commit-5f9f363+ x86_64)

----------------------------------------------------------------------------

(gem_sync:30182) igt-aux-CRITICAL: Test assertion failure function sig_abort,
file igt_aux.c:482:
(gem_sync:30182) igt-aux-CRITICAL: Failed assertion: !"GPU hung"
Subtest preempt-blt failed.
**** DEBUG ****
(gem_sync:30182) ioctl-wrappers-DEBUG: Test requirement passed:
gem_has_ring(fd, ring)
(gem_sync:30182) igt-debugfs-DEBUG: Opening debugfs directory
'/sys/kernel/debug/dri/0'
(gem_sync:30182) igt-debugfs-DEBUG: Opening debugfs directory
'/sys/kernel/debug/dri/0'
(gem_sync:30182) igt-aux-CRITICAL: Test assertion failure function sig_abort,
file igt_aux.c:482:
(gem_sync:30182) igt-aux-CRITICAL: Failed assertion: !"GPU hung"
(gem_sync:30182) igt-core-INFO: Stack trace:
(gem_sync:30182) igt-core-INFO:   #0 [__igt_fail_assert+0x101]
(gem_sync:30182) igt-core-INFO:   #1 [sig_abort+0x3a]
(gem_sync:30182) igt-core-INFO:   #2 [killpg+0x40]
(gem_sync:30182) igt-core-INFO:   #3 [__wait+0x1e]
(gem_sync:30182) igt-core-INFO:   #4 [igt_waitchildren+0x61]
(gem_sync:30182) igt-core-INFO:   #5 [igt_waitchildren_timeout+0xe]
(gem_sync:30182) igt-core-INFO:   #6 [preempt+0x2c2]
(gem_sync:30182) igt-core-INFO:   #7 [__real_main785+0x551]
(gem_sync:30182) igt-core-INFO:   #8 [main+0x27]
(gem_sync:30182) igt-core-INFO:   #9 [__libc_start_main+0xf1]
(gem_sync:30182) igt-core-INFO:   #10 [_start+0x2a]
(gem_sync:30182) igt-core-INFO:   #11 [<unknown>+0x2a]
****  END  ****

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