[Bug 104372] New: [IGT] prime_vgem at coherency-gtt failed assertion: gtt[1024*i] == ~i

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104372

            Bug ID: 104372
           Summary: [IGT] prime_vgem at coherency-gtt failed assertion:
                    gtt[1024*i] == ~i
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: octaviox.hernandez.lopez at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 136370
  --> https://bugs.freedesktop.org/attachment.cgi?id=136370&action=edit
dmesg

This test fails in BXT with the below configuration,

Execute prime_vgem at coherency-gtt

Output
===================================
IGT-Version: 1.20-gbeb26d8 (x86_64) (Linux:
4.15.0-rc4-drm-intel-qa-ww51-commit-b480e79+ x86_64)
Stack trace:
  #0 [__igt_fail_assert+0x101]
  #1 [__real_main757+0xbb8]
  #2 [<unknown>+0xbb8]
Subtest coherency-gtt: FAIL (0.005s)
Test requirement not met in function __real_main757, file prime_vgem.c:849:
Test requirement: vgem_fence_has_flag(vgem, WIP_VGEM_FENCE_NOTIMEOUT)
Stderr  
(prime_vgem:1871) CRITICAL: Test assertion failure function
test_gtt_interleaved, file prime_vgem.c:273:
(prime_vgem:1871) CRITICAL: Failed assertion: gtt[1024*i] == ~i
(prime_vgem:1871) CRITICAL: error: 0 != -1
Subtest coherency-gtt failed.
**** DEBUG ****
(prime_vgem:1871) CRITICAL: Test assertion failure function
test_gtt_interleaved, file prime_vgem.c:273:
(prime_vgem:1871) CRITICAL: Failed assertion: gtt[1024*i] == ~i
(prime_vgem:1871) CRITICAL: error: 0 != -1
(prime_vgem:1871) igt-core-INFO: Stack trace:
(prime_vgem:1871) igt-core-INFO:   #0 [__igt_fail_assert+0x101]
(prime_vgem:1871) igt-core-INFO:   #1 [__real_main757+0xbb8]
(prime_vgem:1871) igt-core-INFO:   #2 [<unknown>+0xbb8]
****  END  ****

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