[Bug 107844] assertion failure when running piglit over virgl

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107844

--- Comment #7 from Marc-Andre Lureau <marcandre.lureau at gmail.com> ---
(In reply to Denis from comment #4)
> hi guys. Could you please provide more info about reproducing steps? Below
> my findings and steps, and I couldn't reproduce this issue yet.

Thanks for trying!

> Piglit result:
> tester at tester-Standard-PC-i440FX-PIIX-1996:~/repository/piglit$ ./piglit run
> quick_gl -t ".*arb_blend_func_extended-fbo-extended-blend-pattern_gles2"
> ~/repository/piglit/results/quick_gl/
> [1/1] fail: 1  
> Thank you for running Piglit!
> Results have been written to /home/tester/repository/piglit/results/quick_gl
> 

hmm, are you testing with X with DISPLAY set? (I test with Xorg & mutter
started manually)

Then:

DISPLAY=:42 ./piglit run -t
".*arb_blend_func_extended-fbo-extended-blend-pattern_gles2" -o -v
tests/quick_gl results/quick_gl

Will crash qemu in i965_dri.so:

#2  0x00007f182daaa769 in __assert_fail_base (fmt=0x7f182dc11e90 "%s%s%s:%u:
%s%sAssertion `%s' failed.\n%n", assertion=0x7f182a932148
"!prog_data->dual_src_blend || key->nr_color_regions == 1", file=0x7f182a932088
"../src/intel/compiler/brw_fs_visitor.cpp", line=449, function=<optimized out>)
at assert.c:92
#3  0x00007f182dab89f6 in __GI___assert_fail (assertion=0x7f182a932148
"!prog_data->dual_src_blend || key->nr_color_regions == 1", file=0x7f182a932088
"../src/intel/compiler/brw_fs_visitor.cpp", line=449, function=0x7f182a9327c0
"void fs_visitor::emit_fb_writes()") at assert.c:101

I can try to get a better backtrace.

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