[Bug 86281] New: brw_meta_fast_clear (brw=brw at entry=0x7fffd4097a08, fb=fb at entry=0x7fffd40fa900, buffers=buffers at entry=2, partial_clear=partial_clear at entry=false)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86281

            Bug ID: 86281
           Summary: brw_meta_fast_clear (brw=brw at entry=0x7fffd4097a08,
                    fb=fb at entry=0x7fffd40fa900, buffers=buffers at entry=2,
                    partial_clear=partial_clear at entry=false)
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/intel
          Assignee: chris at chris-wilson.co.uk
          Reporter: mathieu.malaterre at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org

I can get a segfault in i915 driver using this simple steps
(debian/jessie/amd64 up-to-date):

$ wget
http://mirrorblender.top-ix.org/peach/bigbuckbunny_movies/big_buck_bunny_480p_h264.mov
$ sudo apt-get install mpv
$ mpv big_buck_bunny_480p_h264.mov
-> press 'f' to get full screen
-> press & hold right-arrow key to fast-forward


See:
https://bugs.debian.org/769518#15

Backtrace is:


Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffdbfff700 (LWP 32052)]
brw_meta_fast_clear (brw=brw at entry=0x7fffd4097a08, fb=fb at entry=0x7fffd40fa900,
buffers=buffers at entry=2, partial_clear=partial_clear at entry=false)
    at ../../../../../../../src/mesa/drivers/dri/i965/brw_meta_fast_clear.c:447
447 ../../../../../../../src/mesa/drivers/dri/i965/brw_meta_fast_clear.c: No
such file or directory.
(gdb) bt
#0  brw_meta_fast_clear (brw=brw at entry=0x7fffd4097a08,
fb=fb at entry=0x7fffd40fa900, buffers=buffers at entry=2,
partial_clear=partial_clear at entry=false)
    at ../../../../../../../src/mesa/drivers/dri/i965/brw_meta_fast_clear.c:447
#1  0x00007fffdb3c2a48 in brw_clear (ctx=0x7fffd4097a08, mask=2) at
../../../../../../../src/mesa/drivers/dri/i965/brw_clear.c:246
#2  0x0000555555637269 in gl_video_render_frame (p=0x7fffd40fded0) at
../video/out/gl_video.c:1614
#3  0x000055555563c354 in draw_image (vo=<optimized out>, mpi=0x555556370e00)
at ../video/out/vo_opengl.c:167
#4  0x0000555555639fa3 in render_frame (vo=0x55555631de90) at
../video/out/vo.c:581
#5  vo_thread (ptr=0x55555631de90) at ../video/out/vo.c:679
#6  0x00007ffff6ac20a4 in start_thread (arg=0x7fffdbfff700) at
pthread_create.c:309
#7  0x00007ffff00b3ccd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111

See:

https://bugs.debian.org/769518#5

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