[Bug 89739] New: [HSW 3.19.2]igt/gem_mmap_wc/invalid-flags fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89739

            Bug ID: 89739
           Summary: [HSW 3.19.2]igt/gem_mmap_wc/invalid-flags fails
           Product: DRI
           Version: unspecified
          Hardware: All
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: huax.lu at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 114571
  --> https://bugs.freedesktop.org/attachment.cgi?id=114571&action=edit
dmesg

==System Environment==
--------------------------
Regression: not sure
It fails on 3.19.2 and 3.18.0, works well on the latest -fixes kernel and
-nightly kernel.

Non-working platforms: HSW

==kernel==
--------------------------
commit 660613d1a4e94144490850b6c3d350331860fac4
Author: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
Date:   Wed Mar 18 14:11:52 2015 +0100

    Linux 3.19.2

==Bug detailed description==
-----------------------------
It fails on 3.19.2 and 3.18.0 kernel, works well on the latest -fixes kernel
and -nightly kernel.
Following cases also fails:
gem_mmap_wc/read-write
gem_mmap_wc/write-read

output:
IGT-Version: 1.10-ge7d26df (x86_64) (Linux: 3.19.2_v3.19.2+ x86_64)
Test assertion failure function test_invalid_flags, file gem_mmap_wc.c:107:
Failed assertion: drmIoctl((fd), ((((2U|1U) << (((0+8)+8)+14)) | ((('d')) <<
(0+8)) | (((0x40 + 0x06)) << 0) | ((((sizeof(drm_i915_getparam_t)))) <<
((0+8)+8)))), (&gp)) == 0
Last errno: 22, Invalid argument
Subtest invalid-flags failed.
**** DEBUG ****
Test assertion failure function test_invalid_flags, file gem_mmap_wc.c:107:
Failed assertion: drmIoctl((fd), ((((2U|1U) << (((0+8)+8)+14)) | ((('d')) <<
(0+8)) | (((0x40 + 0x06)) << 0) | ((((sizeof(drm_i915_getparam_t)))) <<
((0+8)+8)))), (&gp)) == 0
Last errno: 22, Invalid argument
****  END  ****
Subtest invalid-flags: FAIL (0.000s)

Reproduce steps:
-------------------------
1. ./gem_mmap_wc --run-subtest invalid-flags

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