http://bugs.freedesktop.org/show_bug.cgi?id=14654
Summary: ReadPixel abort with assertion failure
Product: Mesa
Version: CVS
Platform: x86 (IA32)
OS/Version: Linux (All)
Status: NEW
Severity: critical
Priority: highest
Component: Drivers/DRI/i965
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
CC: [EMAIL PROTECTED], [EMAIL PROTECTED]
When run mesa demo readpix(mesa/progs/drmo/readpix.c), it aborted with output:
[EMAIL PROTECTED] demos]# ./readpix
GL_VERSION = 2.1 Mesa 7.1
GL_RENDERER = Mesa DRI Intel(R) 965Q 20061102
GL_OES_read_format supported. Using type / format = 0x1401 / 0x1908
Loaded 194 by 188 image
readpix: ../../../../../src/mesa/drivers/dri/common/spantmp2.h:166:
intelWriteRGBASpan_ARGB8888: Assertion `irb->pfMap' failed.
Aborted (core dumped)
The bug was introduced in the latest two days, we will bisect the Mesa commit
later.
Below is the backtrack info:
#0 0xffffe410 in __kernel_vsyscall ()
#1 0x4694c159 in raise () from /lib/libc.so.6
#2 0x4694d6e3 in abort () from /lib/libc.so.6
#3 0x46945abd in __assert_fail () from /lib/libc.so.6
#4 0xb7a0d327 in intelWriteRGBASpan_ARGB8888 (ctx=0x8059c90, rb=0x8333ee8,
n=194, x=5, y=20, values=0xb1ad500c, mask=0x0)
at ../../../../../src/mesa/drivers/dri/common/spantmp2.h:166
#5 0xb7b2cc2f in _swrast_write_rgba_span (ctx=0x8059c90, span=0xbfcf9594)
at swrast/s_span.c:1450
#6 0xb7b22212 in draw_rgba_pixels (ctx=0x8059c90, x=5, y=20, width=194,
height=188, format=6407, type=5121, unpack=0x8065924, pixels=0x8334128)
at swrast/s_drawpix.c:666
#7 0xb7b22deb in _swrast_DrawPixels (ctx=0x8059c90, x=5, y=20, width=194,
height=188, format=6407, type=5121, unpack=0x8065924, pixels=0x8334128)
at swrast/s_drawpix.c:889
#8 0xb7b7fd0c in _mesa_DrawPixels (width=194, height=188, format=6407,
type=5121, pixels=0x8334128) at main/drawpix.c:186
#9 0xb7e3e302 in glDrawPixels (width=194, height=188, format=6407, type=5121,
pixels=0x8334128) at ../../../src/mesa/glapi/glapitemp.h:1370
#10 0x08049736 in Display () at readpix.c:157
#11 0xb7ee853f in processWindowWorkList (window=0x8050af8) at glut_event.c:1306
#12 0xb7ee9012 in glutMainLoop () at glut_event.c:1353
#13 0x080494e5 in main (argc=Cannot access memory at address 0x1f90
) at readpix.c:343
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