[Bug 31566] New: [r300] swrast/s_span.c:1349: _swrast_read_rgba_span: Assertion `rb->GetRow' failed.

[bugzilla-daemon@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=31566

           Summary: [r300] swrast/s_span.c:1349: _swrast_read_rgba_span:
                    Assertion `rb->GetRow' failed.
           Product: Mesa
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Drivers/DRI/r300
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: vlee@vmware.com


mesa: d18df9e336b5d2e68a4a6185f7b9d0d0c095c3c4 (master)

chipset: RV530 71C5 (ATI Radeon X1600)
system architecture: i686
libdrm-dev: 2.4.21-1ubuntu2.1
kernel version: 2.6.35-22-generic
Linux distribution: Ubuntu 10.10 i386
Machine model: iMac4,1

Run piglit fbo-nodepth-test.

$ ./bin/fbo-nodepth-test
...
radeonSetSpanFunctions: bad format: 0x0002
radeonSetSpanFunctions: bad format: 0x0002
fbo-nodepth-test: swrast/s_span.c:1349: _swrast_read_rgba_span: Assertion
`rb->GetRow' failed.

(gdb) bt
#0  0x008e6416 in __kernel_vsyscall ()
#1  0x001aa941 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#2  0x001ade42 in abort () at abort.c:92
#3  0x001a38e8 in __assert_fail (assertion=0x1244bee "rb->GetRow",
file=0x125738c "swrast/s_span.c", line=1349, function=0x12576f5
"_swrast_read_rgba_span") at assert.c:81
#4  0x01123088 in _swrast_read_rgba_span (ctx=0x9f43460, rb=0xa290458, n=128,
x=0, y=6, dstType=5126, rgba=0xb754f008) at swrast/s_span.c:1349
#5  0x0112251a in read_rgba_pixels (ctx=0x9f43460, x=0, y=0, width=128,
height=128, format=6407, type=5126, packing=0x9f52110, pixels=<value optimized
out>) at swrast/s_readpix.c:341
#6  _swrast_ReadPixels (ctx=0x9f43460, x=0, y=0, width=128, height=128,
format=6407, type=5126, packing=0x9f52110, pixels=<value optimized out>) at
swrast/s_readpix.c:509
#7  0x0101c76d in radeonReadPixels (ctx=0x9f43460, x=0, y=0, width=128,
height=128, format=6407, type=5126, pack=0x9f52110, pixels=0xb7315008) at
radeon_pixel_read.c:221
#8  0x0109558b in _mesa_ReadPixels (x=0, y=0, width=128, height=128,
format=6407, type=5126, pixels=0xb7315008) at main/readpix.c:232
#9  0x0804aeaa in piglit_probe_rect_rgb (x=0, y=0, w=128, h=128,
expected=0xbfe29940) at piglit/tests/util/piglit-util.c:278
#10 0x0804a766 in piglit_display () at piglit/tests/fbo/fbo-nodepth-test.c:79
#11 0x0804c7e7 in display () at piglit/tests/util/piglit-framework.c:52
#12 0x006ab820 in fghRedrawWindow (window=0x9f26058, enumerator=0xbfe29a48) at
freeglut_main.c:210
#13 fghcbDisplayWindow (window=0x9f26058, enumerator=0xbfe29a48) at
freeglut_main.c:227
#14 0x006af660 in fgEnumWindows (enumCallback=0x6ab790 <fghcbDisplayWindow>,
enumerator=0xbfe29a48) at freeglut_structure.c:394
#15 0x006abcdb in fghDisplayAll () at freeglut_main.c:249
#16 glutMainLoopEvent () at freeglut_main.c:1450
#17 0x006ac605 in glutMainLoop () at freeglut_main.c:1498
#18 0x0804c990 in main (argc=1, argv=0xbfe29cd4) at
piglit/tests/util/piglit-framework.c:118
(gdb) frame 4
#4  0x01123088 in _swrast_read_rgba_span (ctx=0x9f43460, rb=0xa290458, n=128,
x=0, y=6, dstType=5126, rgba=0xb754f008) at swrast/s_span.c:1349
1349          ASSERT(rb->GetRow);

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