[Bug 104778] intermittent unit test crashes since mesa 17.2

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104778

--- Comment #18 from Yoshinori Gento <oss.linuxpf at furuno.co.jp> ---
I saw this once.

[Environment]
CPU: SkyLake(core i5 6500TE)
Distribution: debian(customised)
Kernel: 4.14.98
Mesa: 18.3.3
libdrm: 2.4.89

Message from stdout of drawing module was
----
i965: Failed to submit batchbuffer: Bad address
----

and back-trace were following
----
:
:
#5  0x00007f4496240b35 in exit () from /lib/x86_64-linux-gnu/libc.so.6
#6  0x00007f44864d1a5d in submit_batch (out_fence_fd=0x0,
in_fence_fd=<optimized out>, brw=0x47ee030) at intel_batchbuffer.c:838
#7  _intel_batchbuffer_flush_fence (line=<optimized out>, file=<optimized out>,
out_fence_fd=0x0, in_fence_fd=<optimized out>, brw=0x47ee030) at
intel_batchbuffer.c:891
#8  _intel_batchbuffer_flush_fence (brw=0x47ee030, in_fence_fd=<optimized out>,
out_fence_fd=0x0, file=<optimized out>, line=<optimized out>) at
intel_batchbuffer.c:852
#9  0x00007f44864a558a in brw_draw_single_prim (stream=<optimized out>,
xfb_obj=0x0, prim_id=0, prim=0x7ffff9aa77d0, ctx=0x47ee030, indirect=<optimized
out>) at brw_draw.c:898
#10 brw_draw_prims (ctx=0x47ee030, prims=<optimized out>, nr_prims=1,
ib=<optimized out>, index_bounds_valid=<optimized out>, min_index=0,
max_index=3, gl_xfb_obj=0x0, stream=0, indirect=0x0) at brw_draw.c:1107
#11 0x00007f448608063c in _mesa_draw_arrays (drawID=0, baseInstance=0,
numInstances=1, count=4, start=0, mode=6, ctx=0x47ee030) at main/draw.c:408
#12 _mesa_draw_arrays (ctx=0x47ee030, mode=6, start=0, count=4, numInstances=1,
baseInstance=0, drawID=0) at main/draw.c:385
#13 0x00007f4486081344 in _mesa_exec_DrawArrays (mode=6, start=0, count=4) at
main/draw.c:565
:
:
----

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