[Bug 86090] New: [BDW]igt/tools_test causes WARNING: CPU: 1 PID: 10647 at fs/open.c:705 do_dentry_open+0x131/0x2a6()

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86090

            Bug ID: 86090
           Summary: [BDW]igt/tools_test causes WARNING: CPU: 1 PID: 10647
                    at fs/open.c:705 do_dentry_open+0x131/0x2a6()
           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 109186
  --> https://bugs.freedesktop.org/attachment.cgi?id=109186&action=edit
run log

==System Environment==
--------------------------
Regression: not sure 
Non-working platforms: BDW

==kernel==
--------------------------
drm-intel-nightly/b921a5e434f541c6d96378838df47b4259cc3489

==Bug detailed description==
Run automation testing, It causes WARNING: CPU: 1 PID: 10647 at fs/open.c:705
do_dentry_open+0x131/0x2a6(). I can't reproduce it manually.

run log:

Dmesg:
<6>[ 2093.283470] drm_kms_helper: drm: unregistered panic notifier
<4>[ 2093.304605] Modules linked in: parport_pc parport dm_mod ac acpi_cpufreq
i915(-) button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea
<4>[ 2093.304616] CPU: 1 PID: 10647 Comm: intel_reg_read Tainted: G        W   
  3.18.0-rc3_drm-intel-nightly_b921a5_20141109+ #1342
<4>[ 2093.307634] Modules linked in: parport_pc parport dm_mod ac acpi_cpufreq
i915(-) button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea
<4>[ 2093.307645] CPU: 1 PID: 10648 Comm: intel_reg_dumpe Tainted: G        W  
   3.18.0-rc3_drm-intel-nightly_b921a5_20141109+ #1342


            "dmesg": "[ 2093.304596] ------------[ cut here ]------------\n[
2093.304604] WARNING: CPU: 1 PID: 10647 at fs/open.c:705
do_dentry_open+0x131/0x2a6()\n[ 2093.304605] Modules linked in: parport_pc
parport dm_mod ac acpi_cpufreq i915(-) button video drm_kms_helper drm
cfbfillrect cfbimgblt cfbcopyarea\n[ 2093.304616] CPU: 1 PID: 10647 Comm:
intel_reg_read Tainted: G        W     
3.18.0-rc3_drm-intel-nightly_b921a5_20141109+ #1342\n[ 2093.304618] 
0000000000000000 0000000000000009 ffffffff81789002 0000000000000000\n[
2093.304620]  ffffffff810368cc ffff8800a79ad440 ffffffff8110a3da
0000000000000001\n[ 2093.304622]  ffff880142cf5200 ffff8800a79ad440
00000000ffffffed 0000000000000000\n[ 2093.304624] Call Trace:\n[ 2093.304630] 
[<ffffffff81789002>] ? dump_stack+0x41/0x51\n[ 2093.304633] 
[<ffffffff810368cc>] ? warn_slowpath_common+0x78/0x90\n[ 2093.304635] 
[<ffffffff8110a3da>] ? do_dentry_open+0x131/0x2a6\n[ 2093.304637] 
[<ffffffff8110a3da>] ? do_dentry_open+0x131/0x2a6\n[ 2093.304640] 
[<ffffffff8111774d>] ? do_last+0x942/0xb75\n[ 2093.304642] 
[<ffffffff81114436>] ? __inode_permission+0x53/0x6e\n[ 2093.304645] 
[<ffffffff8111455b>] ? link_path_walk+0x51/0x74a\n[ 2093.304647] 
[<ffffffff81117bad>] ? path_openat+0x22d/0x5b9\n[ 2093.304650] 
[<ffffffff8111872b>] ? user_path_at_empty+0x54/0x7d\n[ 2093.304652] 
[<ffffffff811187da>] ? do_filp_open+0x2d/0x75\n[ 2093.304656] 
[<ffffffff81121f75>] ? __alloc_fd+0x58/0xe3\n[ 2093.304658] 
[<ffffffff8110b5a0>] ? do_sys_open+0x14b/0x1cf\n[ 2093.304661] 
[<ffffffff8178e692>] ? system_call_fastpath+0x12/0x17\n[ 2093.304662] ---[ end
trace ef11e8ec500dbfa2 ]---\n[ 2093.307626] ------------[ cut here
]------------\n[ 2093.307633] WARNING: CPU: 1 PID: 10648 at fs/open.c:705
do_dentry_open+0x131/0x2a6()\n[ 2093.307634] Modules linked in: parport_pc
parport dm_mod ac acpi_cpufreq i915(-) button video drm_kms_helper drm
cfbfillrect cfbimgblt cfbcopyarea\n[ 2093.307645] CPU: 1 PID: 10648 Comm:
intel_reg_dumpe Tainted: G        W     
3.18.0-rc3_drm-intel-nightly_b921a5_20141109+ #1342\n[ 2093.307647] 
0000000000000000 0000000000000009 ffffffff81789002 0000000000000000\n[
2093.307649]  ffffffff810368cc ffff8800a79ad440 ffffffff8110a3da
0000000000000001\n[ 2093.307651]  ffff880143344900 ffff8800a79ad440
00000000ffffffed 0000000000000000\n[ 2093.307654] Call Trace:\n[ 2093.307659] 
[<ffffffff81789002>] ? dump_stack+0x41/0x51\n[ 2093.307663] 
[<ffffffff810368cc>] ? warn_slowpath_common+0x78/0x90\n[ 2093.307665] 
[<ffffffff8110a3da>] ? do_dentry_open+0x131/0x2a6\n[ 2093.307667] 
[<ffffffff8110a3da>] ? do_dentry_open+0x131/0x2a6\n[ 2093.307670] 
[<ffffffff8111774d>] ? do_last+0x942/0xb75\n[ 2093.307676] 
[<ffffffff81114436>] ? __inode_permission+0x53/0x6e\n[ 2093.307678] 
[<ffffffff8111455b>] ? link_path_walk+0x51/0x74a\n[ 2093.307681] 
[<ffffffff81117bad>] ? path_openat+0x22d/0x5b9\n[ 2093.307683] 
[<ffffffff8111872b>] ? user_path_at_empty+0x54/0x7d\n[ 2093.307686] 
[<ffffffff811187da>] ? do_filp_open+0x2d/0x75\n[ 2093.307689] 
[<ffffffff81121f75>] ? __alloc_fd+0x58/0xe3\n[ 2093.307691] 
[<ffffffff8110b5a0>] ? do_sys_open+0x14b/0x1cf\n[ 2093.307695] 
[<ffffffff8178e692>] ? system_call_fastpath+0x12/0x17\n[ 2093.307696] ---[ end
trace ef11e8ec500dbfa3 ]---",

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20141110/7cb614e7/attachment.html>