| Summary: |
[bisected i965] swrast/s_span.c:1583 SIGSEGV with mesa master |
| Product: |
Mesa
|
Reporter: |
Vinson Lee <vlee> |
| Component: |
Drivers/DRI/i965 | Assignee: |
Eric Anholt <eric> |
| Status: |
CLOSED
FIXED
|
QA Contact: |
|
| Severity: |
critical
|
|
|
| Priority: |
high
|
CC: |
brianp, eric, jian.j.zhao
|
| Version: |
git | |
|
| Hardware: |
x86 (IA32) | |
|
| OS: |
Linux (All) | |
|
| Whiteboard: |
|
|
i915 platform:
|
|
i915 features:
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|
|---|
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System environment: -- chipset: GM45 -- system architecture: i686 -- xserver-xorg-video-intel: 2:2.8.1-1ubuntu1 -- xserver-common: 2:1.6.3-1ubuntu6 -- mesa: 57d16c4cc37689710f951cb13981e2efc160cd23 (master) -- libdrm: 2.4.13-1ubuntu1 -- kernel version: 2.6.31-10-generic -- Linux distribution: Ubuntu 9.10 -- Machine model: Dell Latitude E6400 Run piglit test fp-fragment-position. (gdb) bt #0 0x00000000 in ?? () #1 0x0105b192 in _swrast_read_rgba_span (ctx=0x806c9b0, rb=0x83ad590, n=1, x=20, y=20, dstType=5126, rgba=0xb7d92008) at swrast/s_span.c:1583 #2 0x01059b16 in read_rgba_pixels (ctx=<value optimized out>, x=<value optimized out>, y=20, width=1, height=1, format=6408, type=5126, pixels=0xbffff0e4, packing=0xbfffef90) at swrast/s_readpix.c:422 #3 0x0105a66a in _swrast_ReadPixels (ctx=0x806c9b0, x=20, y=20, width=1, height=1, format=6408, type=5126, packing=0x80798d4, pixels=0xbffff0e4) at swrast/s_readpix.c:605 #4 0x00f3044f in intelReadPixels (ctx=0x806c9b0, x=20, y=20, width=1, height=1, format=6408, type=5126, pack=0x80798d4, pixels=0xbffff0e4) at intel_pixel_read.c:314 #5 0x00fd1db3 in _mesa_ReadPixels (x=20, y=20, width=1, height=1, format=6408, type=5126, pixels=0xbffff0e4) at main/readpix.c:208 #6 0x0804a103 in DoTest () #7 0x0804a2ae in Redisplay () #8 0x001955bb in ?? () from /usr/lib/libglut.so.3 #9 0x08059df0 in ?? () #10 0x00000000 in ?? () (gdb) frame 1 #1 0x0105b192 in _swrast_read_rgba_span (ctx=0x806c9b0, rb=0x83ad590, n=1, x=20, y=20, dstType=5126, rgba=0xb7d92008) at swrast/s_span.c:1583 1583 rb->GetRow(ctx, rb, length, x + skip, y, temp); (gdb) print rb->GetRow $1 = (void (*)(GLcontext *, struct gl_renderbuffer *, GLuint, GLint, GLint, void *)) 0 36dd53a3cded9d003ec418732b7fc93c1476aa9b is first bad commit commit 36dd53a3cded9d003ec418732b7fc93c1476aa9b Author: Eric Anholt <eric@anholt.net> Date: Thu Sep 10 09:26:38 2009 -0700 intel: Don't forget to map the depth read buffer in spans. This broke BlitFramebufferEXT(GL_DEPTH_BUFFER_BIT). :040000 040000 549d8f39d7717322b09dc656a5129f46162471f3 53fb80a11730f3ecfdf03231418e8dee0f7e984b M src bisect run success