[Bug 71631] New: [Bisected]igt/pc8 fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71631

          Priority: high
            Bug ID: 71631
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: przanoni at gmail.com
           Summary: [Bisected]igt/pc8 fails
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: huax.lu at intel.com
          Hardware: All
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 89245
  --> https://bugs.freedesktop.org/attachment.cgi?id=89245&action=edit
dmesg

System Environment:
--------------------------
Platform: Pineview/GM45/Ironlake/Sandybridge/Ivybridge/Haswell/Baytrail
Kernel: (drm-intel-nightly)0bb2335025daa5c51b0dc2ec7d181319cc899ce6

Bug detailed description:
-------------------------
It fails on all platforms with -queued, -nightly and -fixes kernel.

Bisect shows:a4e96a95ca6468a7ece9fff1c8e1949691439ed4 is the first bad commit.
commit a4e96a95ca6468a7ece9fff1c8e1949691439ed4
Author:     Paulo Zanoni <paulo.r.zanoni at intel.com>
AuthorDate: Tue Nov 12 13:24:38 2013 -0200
Commit:     Paulo Zanoni <paulo.r.zanoni at intel.com>
CommitDate: Thu Nov 14 19:59:09 2013 -0200

    tests/pm_pc8: add support for runtime PM

    We try to detect if we have runtime PM or if we just have PC8. In case
    there's runtime PM, the functions that wait will wait for the runtime
    PM status reported by the sysfs file instead of waiting for PC8
    residencies to move.

    Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>

run: ./pm_pc8 --run-subtest i2c
output:
Test assertion failure function setup_runtime_pm, file pm_pc8.c:606:
Failed assertion: fd >= 0
Can't open /sys/devices/pci0000:00/0000:00:02.0/power/autosuspend_delay_ms
Subtest rte: FAIL
Subtest drm-resources-equal: FAIL
Subtest modeset-lpsp: FAIL
Subtest modeset-non-lpsp: FAIL
Subtest gem-mmap-cpu: FAIL
Subtest gem-mmap-gtt: FAIL
Subtest gem-pread: FAIL
Subtest gem-execbuf: FAIL
Subtest i2c: FAIL
Subtest pc8-residency: FAIL
Subtest debugfs-read: FAIL
Subtest debugfs-forcewake-user: FAIL
Subtest sysfs-read: FAIL
Subtest modeset-lpsp-stress: FAIL
Subtest modeset-non-lpsp-stress: FAIL
Subtest modeset-lpsp-stress-no-wait: FAIL
Subtest modeset-non-lpsp-stress-no-wait: FAIL
Subtest modeset-pc8-residency-stress: FAIL
Subtest modeset-stress-extra-wait: FAIL
Subtest gem-execbuf-stress: FAIL
Subtest gem-execbuf-stress: FAIL
Subtest gem-execbuf-stress: FAIL


Reproduce steps:
-------------------------
1. ./pm_pc8 --run-subtest i2c

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