[Bug 83341] New: [HSW]igt/gem_reset_stats sporadically causes poweroff

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83341

          Priority: medium
            Bug ID: 83341
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [HSW]igt/gem_reset_stats sporadically causes poweroff
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: huax.lu at intel.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Intel
           Product: DRI

Created attachment 105541
  --> https://bugs.freedesktop.org/attachment.cgi?id=105541&action=edit
dmesg

==System Environment==
--------------------------
Regression: not sure, unstable
Non-working platforms: HSW

==kernel==
--------------------------
drm-intel-nightly/6e9c5b9d428bb075293ec865ba58f90931187a48
drm-intel-fixes/bbe1c2740d3a25aa1dbe5d842d2ff09cddcdde0a
drm-intel-next-queued/c101c5b635bee54e43d0732473d2f80b2a0e00f4


==Bug detailed description==
It only happens one HSW machine with -nightly, -queued or -fixes kernel.
It happens on different subcase when run multiple round. 

[root at x-hsw27 ~]# lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation Haswell DRAM Controller
[8086:0c00] (rev 06)
00:01.0 PCI bridge [0604]: Intel Corporation Haswell PCI Express x16 Controller
[8086:0c01] (rev 06)
00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell Integrated
Graphics Controller [8086:0412] (rev 06)
00:03.0 Audio device [0403]: Intel Corporation Haswell HD Audio Controller
[8086:0c0c] (rev 06)
00:14.0 USB controller [0c03]: Intel Corporation Lynx Point USB xHCI Host
Controller [8086:8c31] (rev 04)
00:16.0 Communication controller [0780]: Intel Corporation Lynx Point MEI
Controller #1 [8086:8c3a] (rev 04)
00:19.0 Ethernet controller [0200]: Intel Corporation Ethernet Connection
I217-V [8086:153b] (rev 04)
00:1a.0 USB controller [0c03]: Intel Corporation Lynx Point USB Enhanced Host
Controller #2 [8086:8c2d] (rev 04)
00:1b.0 Audio device [0403]: Intel Corporation Lynx Point High Definition Audio
Controller [8086:8c20] (rev 04)
00:1c.0 PCI bridge [0604]: Intel Corporation Lynx Point PCI Express Root Port
#1 [8086:8c10] (rev d4)
00:1c.1 PCI bridge [0604]: Intel Corporation Lynx Point PCI Express Root Port
#2 [8086:8c12] (rev d4)
00:1c.3 PCI bridge [0604]: Intel Corporation Lynx Point PCI Express Root Port
#4 [8086:8c16] (rev d4)
00:1c.4 PCI bridge [0604]: Intel Corporation Lynx Point PCI Express Root Port
#5 [8086:8c18] (rev d4)
00:1d.0 USB controller [0c03]: Intel Corporation Lynx Point USB Enhanced Host
Controller #1 [8086:8c26] (rev 04)
00:1f.0 ISA bridge [0601]: Intel Corporation Lynx Point LPC Controller
[8086:8c44] (rev 04)
00:1f.2 SATA controller [0106]: Intel Corporation Lynx Point 6-port SATA
Controller 1 [AHCI mode] [8086:8c02] (rev 04)
00:1f.3 SMBus [0c05]: Intel Corporation Lynx Point SMBus Controller [8086:8c22]
(rev 04)
03:00.0 SATA controller [0106]: ASMedia Technology Inc. ASM1062 Serial ATA
Controller [1b21:0612] (rev 01)
04:00.0 PCI bridge [0604]: PLX Technology, Inc. PEX 8605 PCI Express 4-port
Gen2 Switch [10b5:8605] (rev aa)
05:01.0 PCI bridge [0604]: PLX Technology, Inc. PEX 8605 PCI Express 4-port
Gen2 Switch [10b5:8605] (rev aa)
05:02.0 PCI bridge [0604]: PLX Technology, Inc. PEX 8605 PCI Express 4-port
Gen2 Switch [10b5:8605] (rev aa)
05:03.0 PCI bridge [0604]: PLX Technology, Inc. PEX 8605 PCI Express 4-port
Gen2 Switch [10b5:8605] (rev aa)
08:00.0 Network controller [0280]: Atheros Communications Inc. AR9462 Wireless
Network Adapter [168c:0034] (rev 01)

output:
IGT-Version: 1.7-gd6af004 (x86_64) (Linux:
3.17.0-rc2_drm-intel-fixes_bbe1c2_20140901+ x86_64)
Subtest params: SUCCESS
Subtest params-ctx-render: SUCCESS
Subtest reset-stats-render: SUCCESS
Subtest reset-stats-ctx-render: SUCCESS
Subtest ban-render: SUCCESS
Subtest ban-ctx-render: SUCCESS
Subtest reset-count-render: SUCCESS
Subtest reset-count-ctx-render: SUCCESS
Subtest unrelated-ctx-render: SUCCESS
Subtest close-pending-render: SUCCESS
Subtest close-pending-ctx-render: SUCCESS
Subtest close-pending-fork-render: SUCCESS
Subtest close-pending-fork-reverse-render: SUCCESS
Test requirement not met in function __real_main1088, file
gem_reset_stats.c:1128:
Test requirement: !(RING_HAS_CONTEXTS == false)
Subtest params-ctx-blt: SKIP


Reproduce steps:
---------------------------- 
1. ./gem_reset_stats

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