[Bug 88041] New: [BYT]igt/drv_missed_irq_hang causes system hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88041

            Bug ID: 88041
           Summary: [BYT]igt/drv_missed_irq_hang causes system hang
           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

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

Non-working platforms:  BYT(N2810  @ 2.00GHz)

==kernel==
--------------------------
drm-intel-nightly/07d0c831d9207c937595f081c8fddbddbf53756f
commit 07d0c831d9207c937595f081c8fddbddbf53756f
Author: Jani Nikula <jani.nikula at intel.com>
Date:   Tue Dec 30 15:02:01 2014 +0200

    drm-intel-nightly: 2014y-12m-30d-13h-01m-34s UTC integration manifest

==Bug detailed description==
-----------------------------
It only happens on single machine. Test drm-intel-fixes, drm-intel-nightly and
drm-intel-next-queued kernel, they all have this issue.  Test on earlier
kernel, it also has this issue.

output:
Interrupts masked

dmesg:
[  117.519273] netpoll: netconsole: remote ethernet address 00:10:60:31:90:99
[  117.519409] netpoll: netconsole: local IP 10.239.156.137
[  117.519553] console [netcon0] enabled
[  117.519604] netconsole: network logging started
[  117.524861] console [netcon0] disabled
[  117.542277] netpoll: netconsole: remote port 6666
[  117.542337] netpoll: netconsole: remote IPv4 address 10.239.156.112
[  117.542419] netpoll: netconsole: remote ethernet address 00:10:60:31:90:99
[  117.542520] netpoll: netconsole: local IP 10.239.156.137
[  117.542654] console [netcon0] enabled
[  117.542707] netconsole: network logging started
[  130.948896] [drm:i915_error_state_write] Resetting error state
[  130.951557] [drm:i915_ring_test_irq_set] Masking interrupts on rings
0x0000000f
[  130.979957] gem_exec_blt: executing
[  130.980164] gem_exec_blt: starting subtest normal
[  130.980275] [drm:i915_gem_open]
[  134.999697] [drm] Fake missed irq on bsd ring
[  134.999882] [drm:i915_gem_open]
[  139.007468] [drm] Fake missed irq on blitter ring
[  139.155455] gem_exec_blt: starting subtest dumb-buf
[  139.155574] [drm:i915_gem_open]
[  139.248026] [drm:intel_crtc_set_config] [CRTC:19] [FB:46] #connectors=1 (x
y) (0 0)
[  139.250939] [drm:intel_set_config_compute_mode_changes] computed changes for
[CRTC:19], mode_changed=0, fb_changed=0

==Reproduce steps==
---------------------------- 
1.  ./drv_missed_irq_hang

-- 
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/20150105/e68b264b/attachment-0001.html>