*************************
Test kernel up to the following commit:

[97d3308ab245c51ae237b3444afa7ae87aa9bcd4] drm/i915: Add HAS_CORE_RING_FREQ 
macro
Result : No Stack trace (Bad)

*************************
Test kernel up to the following commit:

[75289874e4484cd4702b3341b654b45b4a09b9d3] drm/i915: Update add_request() to 
take a request structure
Result : No Stack trace (Bad)

*************************
Test kernel up to the following commit:

[c0165304e10f317672e20f2b40770d74c51e287f] drm/i915: Only enable cursor if it 
can be enabled.
Result : No Stack trace (Bad)

*************************
Test kernel up to the following commit:

[b432e5cfd5e92127ad2dd83bfc3083f1dbce43fb] drm/i915: BDW clock change support
Result : No Stack trace (Bad)

*************************
Test kernel up to the following commit:

[34edce2fea6960ce5855d6e09902f82822c374c5] drm/i915: Add cdclk extraction for 
g33, g965gm and g4x
Result : No Stack trace (Bad)

*************************
Test kernel up to the following commit:

[318bd821d65d37fb12c5673607e2b013f7a86a01] drm/i915/skl: Propagate the error if 
we fail to find a suitable DPLL divider
Result : No Stack trace (Bad)


*************************
Test kernel up to the following commit:

[5fcece80ecdac932a0acb71e3a239c39dd4af20f] drm/i915: group all hotplug related 
fields into a new struct in dev_priv
Result : No Stack trace (Bad)

*************************
Test kernel up to the following commit:

[0d2e42970cfa8814ce5f73e329f61c94b7ec2dab] drm/i915: reduce indent in 
i9xx_hpd_irq_handler
Result : No Stack trace (Bad)

*************************
Test kernel up to the following commit:

[b1b38278e12b04cf9a227f6af2c24651cf6e8a85] drm/i915: add a context parameter to 
{en, dis}able zero address mapping
Result : No Stack trace (Bad)

++++++++++++++

b1b38278e12b04cf9a227f6af2c24651cf6e8a85 is the first bad commit
commit b1b38278e12b04cf9a227f6af2c24651cf6e8a85
Author: David Weinehall <david.weineh...@linux.intel.com>
Date:   Wed May 20 17:00:13 2015 +0300

    drm/i915: add a context parameter to {en, dis}able zero address mapping
    
    Export a new context parameter that can be set/queried through the
    context_{get,set}param ioctls.  This parameter is passed as a context
    flag and decides whether or not a GPU address mapping is allowed to
    be made at address zero.  The default is to allow such mappings.
    
    Signed-off-by: David Weinehall <david.weineh...@intel.com>
    Acked-by: "Zou, Nanhai" <nanhai....@intel.com>
    Signed-off-by: Daniel Vetter <daniel.vet...@ffwll.ch>

:040000 040000 248175326f478b7bb1ade676c27cd28f2721e5b6 
6abdf6db9ac859a7742ba3d6f9c93eb5f928cf76 M      drivers
:040000 040000 3789caada5be99563007fae6c089a4be77c5cabf 
795fafadea3f1ff99b0e4358b3168b30949406ac M      include

Bisect completed

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https://bugs.launchpad.net/bugs/1494903

Title:
  Kernel 4.2 drm/i915 erratic error

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