[Bug 98365] New: [BDW][Regression] gem_exec_alignment at single test

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98365

            Bug ID: 98365
           Summary: [BDW][Regression] gem_exec_alignment at single test
           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: jairo.daniel.miramontes.caton at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 127443
  --> https://bugs.freedesktop.org/attachment.cgi?id=127443&action=edit
gem_exec_alignment single test logfile.

While executing IGT we found the below test regression on BDW, attached dmesg
log file.

gem_exec_alignment at single

Output
========================================================================
(gem_exec_alignment:1223) CRITICAL: Test assertion failure function single,
file gem_exec_align
(gem_exec_alignment:1223) CRITICAL: Failed assertion: execobj.offset %
execobj.alignment == 0
(gem_exec_alignment:1223) CRITICAL: error: 0xfffff000 != 0
Stack trace:
  #0 [__igt_fail_assert+0x101]
  #1 [__real_main198+0x7b3]
  #2 [main+0x23]
  #3 [__libc_start_main+0xf0]
  #4 [_start+0x29]
  #5 [<unknown>+0x29]
Subtest single failed.
**** DEBUG ****
(gem_exec_alignment:1223) DEBUG: execbuffer() accepts non-power-of-two
alignment? no
(gem_exec_alignment:1223) DEBUG: starting offset: 0xfffffffffffff000, next
alignment: 0x1000 [1
(gem_exec_alignment:1223) DEBUG: starting offset: 0xfffffffffffff000, next
alignment: 0x2000 [1
(gem_exec_alignment:1223) DEBUG: starting offset: 0xffffffffffffe000, next
alignment: 0x4000 [1
(gem_exec_alignment:1223) DEBUG: starting offset: 0xffffffffffffc000, next
alignment: 0x8000 [1
(gem_exec_alignment:1223) DEBUG: starting offset: 0xffffffffffff8000, next
alignment: 0x10000 [
(gem_exec_alignment:1223) DEBUG: starting offset: 0xffffffffffff0000, next
alignment: 0x20000 [
(gem_exec_alignment:1223) DEBUG: starting offset: 0xfffffffffffe0000, next
alignment: 0x40000 [
(gem_exec_alignment:1223) DEBUG: starting offset: 0xfffffffffffc0000, next
alignment: 0x80000 [
(gem_exec_alignment:1223) DEBUG: starting offset: 0xfffffffffff80000, next
alignment: 0x100000
(gem_exec_alignment:1223) DEBUG: starting offset: 0xfffffffffff00000, next
alignment: 0x200000
(gem_exec_alignment:1223) DEBUG: starting offset: 0xffffffffffe00000, next
alignment: 0x400000
(gem_exec_alignment:1223) DEBUG: starting offset: 0xffffffffffc00000, next
alignment: 0x800000
(gem_exec_alignment:1223) DEBUG: starting offset: 0xffffffffff800000, next
alignment: 0x1000000
(gem_exec_alignment:1223) DEBUG: starting offset: 0xffffffffff000000, next
alignment: 0x2000000
(gem_exec_alignment:1223) DEBUG: starting offset: 0xfffffffffe000000, next
alignment: 0x4000000
(gem_exec_alignment:1223) DEBUG: starting offset: 0xfffffffffc000000, next
alignment: 0x8000000
(gem_exec_alignment:1223) DEBUG: starting offset: 0xfffffffff8000000, next
alignment: 0x1000000
(gem_exec_alignment:1223) DEBUG: starting offset: 0xfffffffff0000000, next
alignment: 0x2000000
(gem_exec_alignment:1223) DEBUG: starting offset: 0xffffffffe0000000, next
alignment: 0x4000000
(gem_exec_alignment:1223) DEBUG: starting offset: 0xffffffffc0000000, next
alignment: 0x8000000
(gem_exec_alignment:1223) DEBUG: starting offset: 0xffffffff80000000, next
alignment: 0x1000000
(gem_exec_alignment:1223) CRITICAL: Test assertion failure function single,
file gem_exec_align
(gem_exec_alignment:1223) CRITICAL: Failed assertion: execobj.offset %
execobj.alignment == 0
(gem_exec_alignment:1223) CRITICAL: error: 0xfffff000 != 0
****  END  ****




Used the below Configuration

Kernel
=================================================================
Branch           : drm-intel-nightly WW42 
commit 15dfed2b90e84e7c277f81842fc3f19355293061
Author: Lyude <thatslyude at gmail.com>
Date:   Sun Oct 16 19:16:08 2016 -0400

    drm-intel-nightly: 2016y-10m-16d-23h-15m-00s UTC integration manifest


Gfx stack
=================================================================
Component         : drm
        tag       : libdrm-2.4.71
        commit    : a44c9c31b7b38b3eedf3d26648f9e68dcc377c4c 

Component         : cairo
        tag       : 1.15.2
        commit    : db8a7f1697c49ae4942d2aa49eed52dd73dd9c7a 

Component         : intel-gpu-tools
        tag       : intel-gpu-tools-1.16-83-g54f8a3f
        commit    : 54f8a3f7cf12eea484a0b0641718ced559959f53

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