[Bug 101832] [regression][bisect] sddm fails to start after f50aa21456d82c8cb6fbaa565835f1acc1720a5d

[Bug 101832] [regression][bisect] sddm fails to start after f50aa21456d82c8cb6fbaa565835f1acc1720a5d

[bugzilla-daemon]

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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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[Bug 101832] [regression][bisect] sddm fails to start after f50aa21456d82c8cb6fbaa565835f1acc1720a5d

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

--- Comment #1 from Laurent carlier <lordheavym@gmail.com> ---
mesa is built with:

  ./autogen.sh --prefix=/usr \
  --sysconfdir=/etc \
  --with-dri-driverdir=/usr/lib/xorg/modules/dri \
  --with-gallium-drivers=r300,r600,radeonsi,nouveau,svga,swrast,virgl,swr \
  --with-dri-drivers=i915,i965,r200,radeon,nouveau,swrast \
  --with-platforms=x11,drm,wayland \
  --with-vulkan-drivers=intel,radeon \
  --disable-xvmc \
  --enable-llvm \
  --enable-llvm-shared-libs \
  --enable-shared-glapi \
  --enable-libglvnd \
  --enable-libunwind \
  --enable-lmsensors \
  --enable-egl \
  --enable-glx \
  --enable-glx-tls \
  --enable-gles1 \
  --enable-gles2 \
  --enable-gbm \
  --enable-dri \
  --enable-gallium-osmesa \
  --enable-gallium-extra-hud \
  --enable-texture-float \
  --enable-xa \
  --enable-vdpau \
  --enable-omx \
  --enable-nine \
  --enable-opencl \
  --enable-opencl-icd \
  --with-clang-libdir=/usr/lib

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[Bug 101832] [regression][bisect] sddm fails to start after f50aa21456d82c8cb6fbaa565835f1acc1720a5d

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

--- Comment #2 from Laurent carlier <lordheavym@gmail.com> ---
building without swr fixes the problem

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[Bug 101832] [regression][bisect] sddm fails to start after f50aa21456d82c8cb6fbaa565835f1acc1720a5d

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

--- Comment #3 from Emil Velikov <emil.l.velikov@gmail.com> ---
Seems like some binary is having unresolved symbols - unw_get_proc_name at
least.

AFAICT it cannot happen for the DRI module, and since you're not using SWR none
of it backends should be attempted, let alone loaded.

Please check all the binaries for "undefined symbol" via $ldd -r $binary 

Thanks!

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[Bug 101832] [regression][bisect] sddm fails to start after f50aa21456d82c8cb6fbaa565835f1acc1720a5d

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

--- Comment #4 from Laurent carlier <lordheavym@gmail.com> ---
got this:
[lordh@lordh-pc lib]$ ldd -r libswrAVX2.so.0.0.0
        linux-vdso.so.1 (0x00007ffefe1b9000)
        libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007f8206c77000)
        libm.so.6 => /usr/lib/libm.so.6 (0x00007f8206965000)
        libc.so.6 => /usr/lib/libc.so.6 (0x00007f82065bf000)
        /usr/lib64/ld-linux-x86-64.so.2 (0x000055844c2fe000)
        libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0x00007f82063a8000)
undefined symbol: pthread_create        (./libswrAVX2.so.0.0.0)
undefined symbol: pthread_setaffinity_np        (./libswrAVX2.so.0.0.0)
undefined symbol: pthread_setname_np    (./libswrAVX2.so.0.0.0)

[lordh@lordh-pc lib]$ ldd -r libswrAVX.so.0.0.0 
        linux-vdso.so.1 (0x00007ffdd86e7000)
        libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007f6e74166000)
        libm.so.6 => /usr/lib/libm.so.6 (0x00007f6e73e54000)
        libc.so.6 => /usr/lib/libc.so.6 (0x00007f6e73aae000)
        /usr/lib64/ld-linux-x86-64.so.2 (0x0000557dc176b000)
        libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0x00007f6e73897000)
undefined symbol: pthread_create        (./libswrAVX.so.0.0.0)
undefined symbol: pthread_setaffinity_np        (./libswrAVX.so.0.0.0)
undefined symbol: pthread_setname_np    (./libswrAVX.so.0.0.0)

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[Bug 101832] [regression][bisect] sddm fails to start after f50aa21456d82c8cb6fbaa565835f1acc1720a5d

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

Emil Velikov <emil.l.velikov@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |timothy.o.rowley@intel.com

--- Comment #5 from Emil Velikov <emil.l.velikov@gmail.com> ---
Right, so I may have misread the Xorg.log, but at least the AVX binaries will
not have unresolved symbols, props to
https://patchwork.freedesktop.org/patch/168170/

Possible symbol collision comes to mind, but I'm not working on either SWR or
radeonsi :-\

Tim, can you please have a look?

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[Bug 101832] [regression][bisect] sddm fails to start after f50aa21456d82c8cb6fbaa565835f1acc1720a5d

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

--- Comment #6 from Laurent carlier <lordheavym@gmail.com> ---
The patchset fixes the unresolved symbols, but segfault is still here. I will
try to grab a better backtrace.

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[Bug 101832] [regression][bisect] sddm fails to start after f50aa21456d82c8cb6fbaa565835f1acc1720a5d

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

--- Comment #7 from Laurent carlier <lordheavym@gmail.com> ---
With debug symbols, backtrace is a bit different:

[442527.173] (EE) Backtrace:
[442527.174] (EE) 0: /usr/lib/xorg-server/Xorg (OsSigHandler+0x2a)
[0x5645b1d61fba]
[442527.174] (EE) 1: /usr/lib/libpthread.so.0 (funlockfile+0x50)
[0x7fe7639f982f]
[442527.174] (EE) 2: /usr/lib/libc.so.6 (strlen+0x26) [0x7fe7636c48c6]
[442527.175] (EE) 3: /usr/lib/xorg/modules/dri/radeonsi_dri.so
(_ZN8KnobBase30autoExpandEnvironmentVariablesERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x120)
[0x7fe75eb34630]
[442527.175] (EE) 4: /usr/lib/xorg/modules/dri/radeonsi_dri.so
(_ZN11GlobalKnobsC1Ev+0x13b) [0x7fe75eb34fbb]
[442527.175] (EE) 5: /usr/lib/xorg/modules/dri/radeonsi_dri.so
(_GLOBAL__sub_I_gen_knobs.cpp+0x10) [0x7fe75e3f25f0]
[442527.176] (EE) 6: /lib64/ld-linux-x86-64.so.2 (call_init.part.0+0x9a)
[0x7fe765c5237a]
[442527.176] (EE) 7: /lib64/ld-linux-x86-64.so.2 (_dl_init+0x76)
[0x7fe765c52486]
[442527.176] (EE) 8: /lib64/ld-linux-x86-64.so.2 (dl_open_worker+0x38e)
[0x7fe765c5693e]
[442527.177] (EE) 9: /usr/lib/libc.so.6 (_dl_catch_error+0x84) [0x7fe763769e44]
[442527.177] (EE) 10: /lib64/ld-linux-x86-64.so.2 (_dl_open+0xca)
[0x7fe765c5615a]
[442527.177] (EE) unw_get_proc_name failed: no unwind info found [-10]
[442527.177] (EE) 11: /usr/lib/libdl.so.2 (?+0xca) [0x7fe7652c3f1a]
[442527.177] (EE) 12: /usr/lib/libc.so.6 (_dl_catch_error+0x84)
[0x7fe763769e44]
[442527.178] (EE) 13: /usr/lib/libdl.so.2 (dlerror+0x2e7) [0x7fe7652c4827]
[442527.178] (EE) 14: /usr/lib/libdl.so.2 (dlopen+0x42) [0x7fe7652c3f42]
[442527.178] (EE) 15: /usr/lib/libgbm.so.1 (dri_open_driver.isra.5+0x1b4)
[0x7fe75fef8984]
[442527.178] (EE) 16: /usr/lib/libgbm.so.1 (dri_screen_create_dri2+0x2c)
[0x7fe75fef8aac]
[442527.178] (EE) 17: /usr/lib/libgbm.so.1 (dri_device_create+0x168)
[0x7fe75fef8f28]
[442527.178] (EE) 18: /usr/lib/libgbm.so.1 (gbm_create_device+0x57)
[0x7fe75fef6e07]
[442527.178] (EE) 19: /usr/lib/xorg/modules/drivers/amdgpu_drv.so
(_init+0x7ffd) [0x7fe7603218dd]
[442527.179] (EE) 20: /usr/lib/xorg-server/Xorg (InitOutput+0xb10)
[0x5645b1c3edc0]
[442527.179] (EE) 21: /usr/lib/xorg-server/Xorg (dix_main+0x1e2)
[0x5645b1bfbb92]
[442527.179] (EE) 22: /usr/lib/libc.so.6 (__libc_start_main+0xea)
[0x7fe7636624ca]
[442527.179] (EE) 23: /usr/lib/xorg-server/Xorg (_start+0x2a) [0x5645b1be553a]
[442527.179] (EE)
[442527.179] (EE) Segmentation fault at address 0x0
[442527.179] (EE)
Fatal server error:
[442527.179] (EE) Caught signal 11 (Segmentation fault). Server aborting
[442527.179] (EE)
[442527.179] (EE)
Please consult the The X.Org Foundation support
         at http://wiki.x.org
 for help.

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[Bug 101832] [regression][bisect] sddm fails to start after f50aa21456d82c8cb6fbaa565835f1acc1720a5d

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

Bernhard Rosenkraenzer <bero@lindev.ch> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         QA Contact|dri-devel@lists.freedesktop |mesa-dev@lists.freedesktop.
                   |.org                        |org
           Assignee|dri-devel@lists.freedesktop |mesa-dev@lists.freedesktop.
                   |.org                        |org
          Component|Drivers/Gallium/radeonsi    |Drivers/Gallium/swr
                 CC|                            |bero@lindev.ch

--- Comment #8 from Bernhard Rosenkraenzer <bero@lindev.ch> ---
This is unrelated to the radeonsi driver -- the exact same commit causes a
similar crash here on a laptop with an Intel and Nouveau GPU.

(EE) Backtrace:
(EE) 0: /usr/libexec/Xorg (xorg_backtrace+0x33) [0x56095d]
(EE) 1: /usr/libexec/Xorg (0x400000+0x164414) [0x564414]
(EE) 2: /lib64/libpthread.so.0 (0x3547e00000+0xfb70) [0x3547e0fb70]
(EE) 3: /lib64/libc.so.6 (0x3547a00000+0x113131) [0x3547b13131]
(EE) 4: /usr/lib64/dri/nouveau_dri.so (0x7f8127608000+0xa74c4e)
[0x7f812807cc4e]
(EE) 5: /usr/lib64/dri/nouveau_dri.so (0x7f8127608000+0xa752e1)
[0x7f812807d2e1]
(EE) 6: /usr/lib64/dri/nouveau_dri.so (0x7f8127608000+0x77ff0) [0x7f812767fff0]
(EE) 7: /lib64/ld-linux-x86-64.so.2 (0x3547600000+0xc0c9) [0x354760c0c9]
(EE) 8: /lib64/ld-linux-x86-64.so.2 (0x3547600000+0xc1d0) [0x354760c1d0]
(EE) 9: /lib64/ld-linux-x86-64.so.2 (0x3547600000+0xf6dc) [0x354760f6dc]
(EE) 10: /lib64/libc.so.6 (_dl_catch_error+0x72) [0x3547aee17b]
(EE) 11: /lib64/ld-linux-x86-64.so.2 (0x3547600000+0xedc1) [0x354760edc1]
(EE) 12: /lib64/libdl.so.2 (0x3548200000+0x1006) [0x3548201006]
(EE) 13: /lib64/libc.so.6 (_dl_catch_error+0x72) [0x3547aee17b]
(EE) 14: /lib64/libdl.so.2 (0x3548200000+0x1505) [0x3548201505]
(EE) 15: /lib64/libdl.so.2 (dlopen+0x35) [0x3548201043]
(EE) 16: /usr/lib64/libgbm.so.1 (0x7f81285af000+0x4ab4) [0x7f81285b3ab4]
(EE) 17: /usr/lib64/libgbm.so.1 (0x7f81285af000+0x4bf4) [0x7f81285b3bf4]
(EE) 18: /usr/lib64/libgbm.so.1 (0x7f81285af000+0x52a8) [0x7f81285b42a8]
(EE) 19: /usr/lib64/libgbm.so.1 (0x7f81285af000+0x2e1b) [0x7f81285b1e1b]
(EE) 20: /usr/lib64/libgbm.so.1 (gbm_create_device+0x39) [0x7f81285b1e89]
(EE) 21: /usr/lib64/xorg/modules/libglamoregl.so (glamor_egl_init+0x80)
[0x7f8128630ca0]
(EE) 22: /usr/lib64/xorg/modules/drivers/modesetting_drv.so
(0x7f812a2ca000+0x7d72) [0x7f812a2d1d72]
(EE) 23: /usr/libexec/Xorg (InitOutput+0x1660) [0x46be93]
(EE) 24: /usr/libexec/Xorg (0x400000+0x20de1) [0x420de1]
(EE) 25: /lib64/libc.so.6 (__libc_start_main+0x15a) [0x3547a21de3]
(EE) 26: /usr/libexec/Xorg (_start+0x2a) [0x420aba]
(EE)
(EE) Segmentation fault at address 0x0

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