[Bug 82167] New: [all]igt/gem_userptr_blits/process-exit-gtt doesn't exit /sys/kernel/debug/dri/0/clients

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Aug 4 20:06:02 PDT 2014


https://bugs.freedesktop.org/show_bug.cgi?id=82167

          Priority: medium
            Bug ID: 82167
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [all]igt/gem_userptr_blits/process-exit-gtt doesn't
                    exit /sys/kernel/debug/dri/0/clients
        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 104037
  --> https://bugs.freedesktop.org/attachment.cgi?id=104037&action=edit
dmesg

==System Environment==
--------------------------
Regression: No, new case
Non-working platforms: all

==kernel==
--------------------------
(drm-intel-nightly)ddbc288690cd888dd6f5629ccba9a2691a70b7b0

==Bug detailed description==
It happens on all platform with -fixes, -queued and -nightly kernel.
New case gem_userptr_blits/process-exit-gtt's return code is 0, the result
shows pass, but the pid still keep in  /sys/kernel/debug/dri/0/clients.

Run this case then run other cases, they will report "other drm clients
running!" and fail.

[root at x-sgb4 tests]# cat /sys/kernel/debug/dri/0/clients
a dev   pid    uid      magic

[root at x-sgb4 tests]# ./gem_userptr_blits --run-subtest process-exit-gtt
IGT-Version: 1.7-gac31f19 (i686) (Linux:
3.16.0-rc6_drm-intel-nightly_8980a4_20140805+ i686)
Aperture size is 2048 MiB
Total RAM is 3202 MiB
Testing unsynchronized mappings...
Testing synchronized mappings...
Subtest process-exit-gtt: SUCCESS
[root at x-sgb4 tests]# cat /sys/kernel/debug/dri/0/clients
a dev   pid    uid      magic

y   0  3792     0          0
[root at x-sgb4 tests]# ps -ef |grep 3792 |grep -v grep


==Reproduce steps==
---------------------------- 
1. ./gem_userptr_blits --run-subtest process-exit-gtt
2. cat /sys/kernel/debug/dri/0/clients

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