[Bug 88819] New: [BSW]igt/gem_persistent_relocs/forked-interruptible-faulting-reloc-thrashing sporadically fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88819

            Bug ID: 88819
           Summary: [BSW]igt/gem_persistent_relocs/forked-interruptible-fa
                    ulting-reloc-thrashing sporadically 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 112870
  --> https://bugs.freedesktop.org/attachment.cgi?id=112870&action=edit
dmesg

==System Environment==
--------------------------
Regression:  not sure

no-working platforms: BSW

==kernel==
--------------------------
drm-intel-nightly/67e9eb08a3b967b1ac6b7ec4588a93a2cb030cae
commit 67e9eb08a3b967b1ac6b7ec4588a93a2cb030cae
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Fri Jan 23 17:04:55 2015 +0100

    drm-intel-nightly: 2015y-01m-23d-16h-04m-34s UTC integration manifest

==Bug detailed description==
-----------------------------
It fails on BSW with -nightly kernel. Fail rate: 1/4

output:
IGT-Version: 1.9-gfa94e01 (x86_64) (Linux:
3.19.0-rc5_drm-intel-nightly_67e9eb_20150126+ x86_64)
(gem_persistent_relocs:4363) ioctl-wrappers-CRITICAL: Test assertion failure
function gem_execbuf, file ioctl_wrappers.c:437:
(gem_persistent_relocs:4363) ioctl-wrappers-CRITICAL: Failed assertion: ret ==
0
(gem_persistent_relocs:4363) ioctl-wrappers-CRITICAL: Last errno: 22, Invalid
argument
child 3 died with signal 10, User defined signal 1
Subtest forked-interruptible-faulting-reloc-thrashing: FAIL (2.883s)

==Reproduce steps==
---------------------------- 
1. ./gem_persistent_relocs --run-subtest
forked-interruptible-faulting-reloc-thrashing

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