https://bugs.freedesktop.org/show_bug.cgi?id=101832

            Bug ID: 101832
           Summary: [regression][bisect] sddm fails to start after
                    f50aa21456d82c8cb6fbaa565835f1acc1720a5d
           Product: Mesa
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: blocker
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: lordheavym@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

Created attachment 132751
  --> https://bugs.freedesktop.org/attachment.cgi?id=132751&action=edit
xorg log file with the segfault

* llvm-svn 308274
* AMD Radeon RX 470 Graphics (AMD POLARIS10 / DRM 3.15.0 / 4.12.2-1-ARCH, LLVM
5.0.0)

Bisecting gives:
f50aa21456d82c8cb6fbaa565835f1acc1720a5d is the first bad commit
commit f50aa21456d82c8cb6fbaa565835f1acc1720a5d
Author: Tim Rowley <timothy.o.rowley@intel.com>
Date:   Thu Jun 29 14:37:07 2017 -0500

    swr: build driver proper separate from rasterizer

bisect log:
git bisect start
# good: [6c7b7aa3d8323a7cde5ab2b84fabc16913adeab4] a5xx: fix condition for
updating *_FS_OUTPUT_CNTL
git bisect good 6c7b7aa3d8323a7cde5ab2b84fabc16913adeab4
# bad: [28ccf8587e1e1c0e9a7b08296807c343f33dc9de] i965/gen4: Set tile offsets
to zero after depth rebase
git bisect bad 28ccf8587e1e1c0e9a7b08296807c343f33dc9de
# bad: [2b895475f600b142e9ccbfb3b33009fe68b21162] util: Remove u_math from
u_vector
git bisect bad 2b895475f600b142e9ccbfb3b33009fe68b21162
# bad: [aadd37298c704982036f64e58903c80cd7dac93b] i965/miptree: Add a return
for updating of winsys
git bisect bad aadd37298c704982036f64e58903c80cd7dac93b
# bad: [4d8191fd000071328b97bde5fc31ab1c39238d27] egl: check for extensions'
presence during attr parsing
git bisect bad 4d8191fd000071328b97bde5fc31ab1c39238d27
# good: [618be8cc1ad1760103930b69ffbf528d7b861ab3] i965: Resolve framebuffers
before signaling the fence
git bisect good 618be8cc1ad1760103930b69ffbf528d7b861ab3
# bad: [314879f7fec07cedb5263681173a22d522a8ac9a] i965: Fix asynchronous
mappings on !LLC platforms.
git bisect bad 314879f7fec07cedb5263681173a22d522a8ac9a
# good: [27c5568de3674ec95f02816a06b13180bad0838b] swr/rast: make SWR_VISIBLE
attribute work for windows
git bisect good 27c5568de3674ec95f02816a06b13180bad0838b
# bad: [f50aa21456d82c8cb6fbaa565835f1acc1720a5d] swr: build driver proper
separate from rasterizer
git bisect bad f50aa21456d82c8cb6fbaa565835f1acc1720a5d
# good: [50cd222116b40e4df2462cb25a92960d557c9144] swr: switch to using
SwrGetInterface api table
git bisect good 50cd222116b40e4df2462cb25a92960d557c9144
# first bad commit: [f50aa21456d82c8cb6fbaa565835f1acc1720a5d] swr: build
driver proper separate from rasterizer

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