| Summary: | ARB_texture_rectangle segment fault when teximage's height is 0 | ||
|---|---|---|---|
| Product: | Mesa | Reporter: | WuNian <nian.wu> |
| Component: | Drivers/DRI/i915 | Assignee: | haihao <haihao.xiang> |
| Status: | CLOSED FIXED | QA Contact: | |
| Severity: | minor | ||
| Priority: | medium | CC: | dri-devel, eric, john |
| Version: | git | ||
| Hardware: | x86 (IA32) | ||
| OS: | Linux (All) | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
| Attachments: |
test case
Xorg log |
||
Created attachment 13472 [details]
test case
If glTexImage2D's target is GL_TEXTURE_2D, the bug does not exist. This bug has gone away Yes, It's gone. Thanks. This bug is back. pls check extension GL_ARB_texture_rectangle yourself! a: ../common/dri_bufmgr_fake.c:594: dri_fake_bo_alloc: Assertion `size != 0' failed. zsh: abort (core dumped) ./a Running on Ubuntu 8.10 with all the latest updates. Created attachment 20291 [details]
Xorg log
fixed in mesa commit 8b69c42b356d51c3a37bc0af41738b016c2adc5b Author: Xiang, Haihao <haihao.xiang@intel.com> Date: Fri Dec 12 10:02:05 2008 +0800 intel: check for null texture. (fix #13902) Mass version move, cvs -> git |
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When call glTexImage2D with target GL_TEXTURE_RECTANGLE_ARB, if the texture image's height is 0, it will result in segment fault. Running the attached case, the backtrace info is as below: (gdb) bt #0 dri_bo_map (buf=0x0, write_enable=1 '\001') at ../common/dri_bufmgr.c:81 #1 0xb7aef1a5 in intel_region_map (intel=0x8058c10, region=0x80cb4d0) at intel_regions.c:62 #2 0xb7af03b3 in intel_miptree_image_map (intel=0x8058c10, mt=0x8329c38, face=0, level=0, row_stride=0xbfff1520, image_offsets=0x8080f78) at intel_mipmap_tree.c:323 #3 0xb7af1def in intelTexImage (ctx=0x8058c10, dims=2, target=34037, level=0, internalFormat=6408, width=55, height=0, depth=1, border=0, format=6408, type=5126, pixels=0x8081058, unpack=0x80648a4, texObj=0x8329948, texImage=0x8329bb8, imageSize=0, compressed=0) at intel_tex_image.c:463 #4 0xb7af2187 in intelTexImage2D (ctx=0x8058c10, target=34037, level=0, internalFormat=6408, width=55, height=0, border=0, format=6408, type=5126, pixels=0x8081058, unpack=0x80648a4, texObj=0x8329948, texImage=0x8329bb8) at intel_tex_image.c:552 #5 0xb7b8480c in _mesa_TexImage2D (target=34037, level=0, internalFormat=6408, width=55, height=0, border=0, format=6408, type=5126, pixels=0x8081058) at main/teximage.c:2564 #6 0xb7fb01ec in glTexImage2D (target=34037, level=0, internalformat=6408, width=55, height=0, border=0, format=6408, type=5126, pixels=0x8081058) at ../../../src/mesa/glapi/glapitemp.h:1000 .... If turn on INTEL_NO_TTM, the case also aborts with below info: TTM buffer manager disabled. Using classic. texRect_915: ../common/dri_bufmgr_fake.c:579: dri_fake_bo_alloc: Assertion `size != 0' failed. Aborted