[Bug 89833] New: [ All bisected] igt/kms_fbc_crc cases fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89833

            Bug ID: 89833
           Summary: [ All bisected] igt/kms_fbc_crc cases fail
           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: yex.tian at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 114750
  --> https://bugs.freedesktop.org/attachment.cgi?id=114750&action=edit
dmesg info

System Environment:       
-----------------------------------------------------
Regression: Yes, igt
Non-working platforms: all

==Kernel==
--------------------------------------------------
commit ff2304504e2b6f0b5877021d4057271e7cf237ee
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Mon Mar 30 17:41:51 2015 +0200

    drm-intel-nightly: 2015y-03m-30d-15h-41m-14s UTC integration manifest

==Bug detailed description==

igt/kms_fbc_crc cases fail. 
It’s igt regression, By bisected, show the first bad commit is 47f6b1.
commit 47f6b1305cc3752f318a555b932e194e1500c1d8
Author:     Thomas Wood <thomas.wood at intel.com>
AuthorDate: Wed Mar 25 16:42:57 2015 +0000
Commit:     Thomas Wood <thomas.wood at intel.com>
CommitDate: Thu Mar 26 15:50:59 2015 +0000

    igt.cocci: check the return values of various functions

    Add rules to fix unused-result warnings when compiling with
    _FORTIFY_SOURCE defined and apply them to the library and tests.

Output:
[root at x-ivb6 tests]# ./kms_fbc_crc
IGT-Version: 1.10-g068f9ce (x86_64) (Linux:
4.0.0-rc6_drm-intel-nightly_ff2304_20150331+ x86_64)
Test assertion failure function __real_main493, file kms_fbc_crc.c:513:
Failed assertion: fread(buf, sizeof(buf), 1, status) == sizeof(buf)
error: 0 != 64
Stack trace:
  #0 [__igt_fail_assert+0xfc]
  #1 [__real_main493+0x1194]
  #2 [main+0x21]
  #3 [__libc_start_main+0xf5]
  #4 [_start+0x29]
  #5 [<unknown>+0x29]
Test kms_fbc_crc failed.
**** DEBUG ****
(kms_fbc_crc:5079) igt-core-DEBUG: Test requirement passed:
!igt_run_in_simulation()
Test requirement passed: fd >= 0
Test requirement passed: fd >= 0
Test requirement passed: drmSetMaster(fd) == 0
VT: graphics mode set (mode was 0x0)
Test requirement passed: ctl
Test requirement passed: (written == strlen(cmd) && ret == 0) || errno !=
ENODEV
Test requirement passed: status
Test assertion failure function __real_main493, file kms_fbc_crc.c:513:
Failed assertion: fread(buf, sizeof(buf), 1, status) == sizeof(buf)
error: 0 != 64
****  END  ****
Subtest page_flip: FAIL
Subtest mmap_cpu: FAIL
Subtest mmap_gtt: FAIL
Subtest blt: FAIL
Subtest render: FAIL
Subtest context: FAIL
Subtest page_flip_and_mmap_cpu: FAIL
Subtest page_flip_and_mmap_gtt: FAIL
Subtest page_flip_and_blt: FAIL
Subtest page_flip_and_render: FAIL
Subtest page_flip_and_context: FAILReproduce steps:
----------------------------
1, ./ kms_fbc_crc

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