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    <head>
      <base href="https://bugs.freedesktop.org/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [llvmpipe] SIGSEGV src/gallium/drivers/llvmpipe/lp_texture.c:600"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=77023">77023</a>
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>brianp@vmware.com, jfonseca@vmware.com, sroland@vmware.com
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>mesa-dev@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[llvmpipe] SIGSEGV src/gallium/drivers/llvmpipe/lp_texture.c:600
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>critical
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>vlee@freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>git
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr></table>
      <p>
        <div>
        <pre>mesa: c6050ce7da7abff4fc7265f0a61a9b8621f1c061 (master 10.2.0-devel)

$ ./bin/fbo-generatemipmap-3d RGB9_E5 -auto
Segmentation fault (core dumped)

(gdb) bt
#0  0x00007f3e9942e84c in llvmpipe_transfer_unmap (pipe=0xaaf2d0, transfer=0x0)
at src/gallium/drivers/llvmpipe/lp_texture.c:600
#1  0x00007f3e995db6a4 in pipe_transfer_unmap (context=0xaaf2d0, transfer=0x0)
at src/gallium/auxiliary/util/u_inlines.h:481
#2  0x00007f3e995dbdd0 in st_texture_image_unmap (st=0xb331d0,
stImage=0xedc300) at src/mesa/state_tracker/st_texture.c:273
#3  0x00007f3e995cf4cf in st_UnmapTextureImage (ctx=0x7f3e9cec5010,
texImage=0xedc300, slice=1) at src/mesa/state_tracker/st_cb_texture.c:224
#4  0x00007f3e99659a71 in generate_mipmap_uncompressed (ctx=0x7f3e9cec5010,
target=32879, texObj=0xeea640, srcImage=0xedc300, maxLevel=11)
    at src/mesa/main/mipmap.c:1987
#5  0x00007f3e9965a3c1 in _mesa_generate_mipmap (ctx=0x7f3e9cec5010,
target=32879, texObj=0xeea640) at src/mesa/main/mipmap.c:2204
#6  0x00007f3e995d842c in st_generate_mipmap (ctx=0x7f3e9cec5010, target=32879,
texObj=0xeea640) at src/mesa/state_tracker/st_gen_mipmap.c:204
#7  0x00007f3e99645e1b in _mesa_GenerateMipmap (target=32879) at
src/mesa/main/genmipmap.c:132
#8  0x00007f3e9c9eef1b in stub_glGenerateMipmap (target=32879) at
piglit/tests/util/generated_dispatch.c:9591
#9  0x00000000004018bb in create_tex3d () at
piglit/tests/fbo/fbo-generatemipmap-3d.c:115
#10 0x0000000000401fbc in piglit_display () at
piglit/tests/fbo/fbo-generatemipmap-3d.c:273
#11 0x00007f3e9c9d9b19 in display () at
piglit/tests/util/piglit-framework-gl/piglit_glut_framework.c:60
#12 0x00007f3e9c374244 in fghRedrawWindow (window=0xaab820) at
freeglut_main.c:231
#13 fghcbDisplayWindow (window=0xaab820, enumerator=0x7fffa577a3c0) at
freeglut_main.c:248
#14 0x00007f3e9c377aa9 in fgEnumWindows
(enumCallback=enumCallback@entry=0x7f3e9c3741d0 <fghcbDisplayWindow>,
enumerator=enumerator@entry=0x7fffa577a3c0)
    at freeglut_structure.c:396
#15 0x00007f3e9c3747fd in fghDisplayAll () at freeglut_main.c:271
#16 glutMainLoopEvent () at freeglut_main.c:1523
#17 0x00007f3e9c374ffd in glutMainLoop () at freeglut_main.c:1571
#18 0x00007f3e9c9d9d48 in run_test (gl_fw=0x7f3e9ccc9360 <glut_fw>, argc=2,
argv=0x7fffa577a798)
    at piglit/tests/util/piglit-framework-gl/piglit_glut_framework.c:142
#19 0x00007f3e9c9d7949 in piglit_gl_test_run (argc=2, argv=0x7fffa577a798,
config=0x7fffa577a660)
    at piglit/tests/util/piglit-framework-gl.c:191
#20 0x00000000004015ae in main (argc=2, argv=0x7fffa577a798) at
piglit/tests/fbo/fbo-generatemipmap-3d.c:42
(gdb) frame 0
#0  0x00007f3e9942e84c in llvmpipe_transfer_unmap (pipe=0xaaf2d0, transfer=0x0)
at src/gallium/drivers/llvmpipe/lp_texture.c:600
600       assert(transfer->resource);
(gdb) print transfer
$1 = (struct pipe_transfer *) 0x0</pre>
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