Created attachment 15729 [details] test case System Environment: -------------------------- --Platforms: i915 & i965 --Architecture(32-bit,64-bit,compatiblity): all --2D driver: commit 645980596450ed21c3b8927410a6bfe38a0c55d1 --3D driver: commit 3e0797f3b702a1363bf238eb4826385860346137 --Xserver: commit b8ea9f2a25aad88aee77a68f8e20ac07276f0dab --Drm commit 562f95ea96f08e1d73a872dc87237614292c873a --Kernel: 2.6.23.1 Bug detailed description: ------------------------- This issue doesn't happen in software rendering When you write codes in following sequences: 1. glTexImage2D() to allocate memory for a 128x128 texture for level 0 2. glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 1); 3. glTexImage2D() to allocate memory for a 128x128 texture for level 1 4. glFramebufferTexture2DEXT() to attach level 1 of this texture will get a segment fault. Reproduce steps: ---------------- 1. start X 2. compile and run attached test case Current result: ---------------- it doesnt' work as expected. Expected result: ---------------- should not get segment fault
backtrace: Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -1212086576 (LWP 12151)] intel_miptree_image_offset (mt=0x0, face=0, level=1) at intel_mipmap_tree.c:358 358 if (mt->target == GL_TEXTURE_CUBE_MAP_ARB) (gdb) bt #0 intel_miptree_image_offset (mt=0x0, face=0, level=1) at intel_mipmap_tree.c:358 #1 0xb79f232b in intel_render_texture (ctx=0x8055310, fb=0x8345c08, att=0x8345e5c) at intel_fbo.c:650 #2 0xb7a5d35e in _mesa_set_texture_attachment (ctx=0x8055310, fb=0x8345c08, att=0x8345e5c, texObj=0x8334b60, texTarget=3553, level=1, zoffset=0) at main/fbobject.c:207 #3 0xb7a5d626 in framebuffer_texture (ctx=0x8055310, caller=<value optimized out>, target=<value optimized out>, attachment=36064, textarget=3553, texture=1, level=1, zoffset=0) at main/fbobject.c:1245 #4 0xb7a5d7e9 in _mesa_FramebufferTexture2DEXT (target=36160, attachment=36064, textarget=3553, texture=1, level=1) at main/fbobject.c:1288 #5 0xb7ed7a62 in glFramebufferTexture2DEXT (target=36160, attachment=36064, textarget=3553, texture=1, level=1) at ../../../src/mesa/glapi/glapitemp.h:5396 #6 0x08048c20 in test () at fbo.c:56 #7 0x08048ca0 in display () at fbo.c:76 #8 0xb7e781ef in processWindowWorkList (window=0x8050e58) at glut_event.c:1306 #9 0xb7e78cc2 in glutMainLoop () at glut_event.c:1353 #10 0x08048d1c in main (argc=1, argv=0xbffbc8c4) at fbo.c:89
Created attachment 15730 [details] xorg conf
Created attachment 15731 [details] xorg log
This issue has gone for both i915 and i965 with latest GEM.
verified
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