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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Lima cannot handle too many vertices because of limited pre-allocated buffer"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110408">110408</a>
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<th>Summary</th>
<td>Lima cannot handle too many vertices because of limited pre-allocated buffer
</td>
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<th>Product</th>
<td>Mesa
</td>
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<th>Version</th>
<td>git
</td>
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<th>Hardware</th>
<td>ARM
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Other
</td>
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<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>icenowylin@gmail.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>mesa-dev@lists.freedesktop.org
</td>
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<pre>When I try to run the bump:bump-render=high-poly test of glmark2-es2-drm on
Lima, it crashes with a segfault.
The backtrace shows:
#0 0x0000ffffb3ab03e0 lima_ctx_buff_va (sun4i-drm_dri.so)
#1 0x0000ffffb3ab43b4 lima_update_varying (sun4i-drm_dri.so)
#2 0x0000ffffb3619304 u_vbuf_draw_vbo (sun4i-drm_dri.so)
#3 0x0000ffffb37b15e4 st_draw_vbo (sun4i-drm_dri.so)
#4 0x0000ffffb3852938 _mesa_draw_arrays (sun4i-drm_dri.so)
#5 0x0000aaaade1d3954 _ZN4Mesh10render_vboEv (glmark2-es2-drm)
#6 0x0000aaaade16dce4 _ZN9SceneBump4drawEv (glmark2-es2-drm)
#7 0x0000aaaade156d10 _ZN8MainLoop4drawEv (glmark2-es2-drm)
#8 0x0000aaaade157540 _ZN8MainLoop4stepEv (glmark2-es2-drm)
#9 0x0000aaaade14aca0 _Z12do_benchmarkR6Canvas
(glmark2-es2-drm)
#10 0x0000aaaade148948 main (glmark2-es2-drm)
#11 0x0000ffffb400c638 __libc_start_main (libc.so.6)
#12 0x0000aaaade14aaf0 $x (glmark2-es2-drm)
#13 0x0000aaaade14aaf0 $x (glmark2-es2-drm)
>From inspection, lima_ctx_buff_va seems to be refering to a context buffer that
haven't been successfully allocated, and in lima_update_varying() the
allocation failure seems to be because the requested memory size is too big
(because the vertex count is big, 144000 for bump:bump-render=high-poly).
Should we use some better way than u_suballocator to allocate the memory for
the varying storage?</pre>
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