[Bug 91220] New: [SKL] crash when hotpluging DP monitor

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91220

            Bug ID: 91220
           Summary: [SKL] crash when hotpluging DP monitor
           Product: DRI
           Version: unspecified
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: christophe.prigent at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 116934
  --> https://bugs.freedesktop.org/attachment.cgi?id=116934&action=edit
kern.log

Hardware
Platform: SKY LAKE Y A0 
CPU : Intel(R) Core(TM) m3-6Y30 CPU @ 0.8GHz 4MB (family: 6, model: 78 
stepping: 3)
MCP : SKL-Y  D1  2+2 (ou ULX-D1)
QDF : QYV3 
CPU : SKL D0
Chipset PCH: Sunrise Point LP C1       
CRB : SKY LAKE Y LPDDR3 RVP3 CRB FAB2
Reworks : All Mandatories + FBS02 & FBS03, O-06
[‎7/‎3/‎2015 11:56 AM] Prigent, Christophe: 
Software 
Linux : Ubuntu 14.04 LTS 64 bits
BIOS : SKLSE2R1.R00.X085.B02.150601337
ME FW : 11.0.0.1149
Ksc (EC FW): 1.15
Kernel 4.1.0 from git://anongit.freedesktop.org/drm-intel branch
drm-intel-nighlty 28b121260e4becad301d454a5da68945c9c66564
cairo (master) 93422b3cb5e0ef8104b8194c8873124ce2f5ea2d
drm (master) b2360626c4aa1dccdf3fe258b833121748d64d35
intel-driver (master) f3f74ea23601750078215fad04dde6748364b88d
libva (master) 0f88a645ab3cea69d63371189e53cd465ab95a20
mesa (master) 24b043aab73ce066ded6e4bc93f589008dfc8484
xf86-video-intel (master) baec802b21387d04aebb10ac29e719a1800c5aa0

HDMI monitor connected to mini DP port via 3 in 1 adapter

Steps:
------
1. Boot (don't use text mode)
2. Enter valid credentials
3. Hotplug DP monitor

Actual result:
--------------
3. DUT freezes. Leds on motherboard indicates a crash. Reset is not responding

Expected result:
----------------
3. No crash

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