[Bug 73652] New: [SNB/IVB/HSW/BYT/BDW]igt/gem_reset_stats causes *ERROR* context hanging too fast, declaring banned!

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73652

          Priority: medium
            Bug ID: 73652
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [SNB/IVB/HSW/BYT/BDW]igt/gem_reset_stats causes
                    *ERROR* context hanging too fast, declaring banned!
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: huax.lu at intel.com
          Hardware: All
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 92117
  --> https://bugs.freedesktop.org/attachment.cgi?id=92117&action=edit
dmesg

System Environment:
--------------------------
Platform: SNB/IVB/HSW/BYT
kernel:   (drm-intel-nightly)07db3e0b8568d81226e2e17dbb1b340668cb2287

Bug detailed description:
-------------------------
Run ./gem_reset_stats --run-subtest ban, <3>[   88.707592]
[drm:i915_context_is_banned] *ERROR* context hanging too fast, declaring
banned! appears.
It always has this issue.

output:
IGT-Version: 1.5-g1552aa2 (x86_64) (Linux:
3.13.0-rc7_drm-intel-nightly_07db3e_20140115+ x86_64)
4:1 reset status 1 differs from assumed 2
Test assertion failure function test_ban, file gem_reset_stats.c:528:
Last errno: 5, Input/output error
Failed assertion: _assert_reset_status(fd, ctx_good, (1 << 1)) == 0
Subtest ban: FAIL

Reproduce steps:
----------------------------
1. ./gem_reset_stats --run-subtest ban

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