[Bug 104831] CAYMAN:KDE applications SIGSEGV

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104831

            Bug ID: 104831
           Summary: CAYMAN:KDE applications SIGSEGV
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: martin at serafean.cz
        QA Contact: dri-devel at lists.freedesktop.org

Created attachment 137016
  --> https://bugs.freedesktop.org/attachment.cgi?id=137016&action=edit
kmail backtrace

testing mesa 18.0-rc2, Radeon HD6950
many KDE applications crash with the following in the backtrace.
I have seen this with ksplashqml, kmail, krunner and possibly plasma (but for
some reason symbols there get truncated).

Relevant (r600g) part of backtrace
Thread 1 (Thread 0x7f303aec5640 (LWP 4710)):
[KCrash Handler]
#6  0x00007f306fc84000 in __memcpy_ssse3 () from /lib64/libc.so.6
#7  0x00007f30338255b4 in tgsi_dup_tokens () from /usr/lib64/dri/r600_dri.so
#8  0x00007f303395fa9b in r600_create_shader_state_tokens () from
/usr/lib64/dri/r600_dri.so
#9  0x00007f303395fad3 in r600_create_shader_state () from
/usr/lib64/dri/r600_dri.so
#10 0x00007f3033674ecd in st_create_fp_variant () from
/usr/lib64/dri/r600_dri.so
#11 0x00007f3033676e56 in st_get_fp_variant () from /usr/lib64/dri/r600_dri.so
#12 0x00007f303362d070 in st_update_fp () from /usr/lib64/dri/r600_dri.so
#13 0x00007f303362968e in st_validate_state () from /usr/lib64/dri/r600_dri.so
#14 0x00007f3033647306 in st_draw_vbo () from /usr/lib64/dri/r600_dri.so
#15 0x00007f303360a108 in vbo_validated_drawrangeelements () from
/usr/lib64/dri/r600_dri.so
#16 0x00007f303360a89f in vbo_exec_DrawElements () from
/usr/lib64/dri/r600_dri.so
#17 0x00007f3062207551 in
QSGBatchRenderer::Renderer::renderMergedBatch(QSGBatchRenderer::Batch const*)
() from /usr/lib64/libQt5Quick.so.5
#18 0x00007f3062208935 in QSGBatchRenderer::Renderer::renderBatches() () from
/usr/lib64/libQt5Quick.so.5

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