http://bugs.freedesktop.org/show_bug.cgi?id=14966
Summary: [i915 mesa_7.0.3-rc2] segment fault with BASE_LEVEL set
to 5 for MipMap
Product: Mesa
Version: unspecified
Platform: Other
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Drivers/DRI/i915
AssignedTo: dri-devel@lists.sourceforge.net
ReportedBy: [EMAIL PROTECTED]
CC: [EMAIL PROTECTED], [EMAIL PROTECTED]
Created an attachment (id=15057)
--> (http://bugs.freedesktop.org/attachment.cgi?id=15057)
test case
System Environment:
--------------------------
--Platform: i915
--Architecture(32-bit,64-bit,compatiblity): all
--2D driver: 2.2.1
--mesa: 7.0.3-rc2
--Xserver: 1.4
--Drm 2.3
--Kernel:
2.6.23.1
Bug detailed description:
-------------------------
this issue does not happen on i965.
run mesa/demos/shadowtex will abort with following backtrace:
(gdb) bt
#0 0x0000003a38c30ec5 in raise () from /lib64/libc.so.6
#1 0x0000003a38c32970 in abort () from /lib64/libc.so.6
#2 0x0000003a38c2a11f in __assert_fail () from /lib64/libc.so.6
#3 0x00002b8748f26248 in upload_wm_surfaces (brw=0x6161a0) at
brw_wm_surface_state.c:137
#4 0x00002b8748f0a4ca in brw_validate_state (brw=0x6161a0) at
brw_state_upload.c:258
#5 0x00002b8748efda87 in brw_draw_prims (ctx=<value optimized out>,
arrays=0x6535a0, prim=0x651d84, nr_prims=15, ib=0x0,
min_index=0, max_index=449) at brw_draw.c:300
#6 0x00002b8748fa20ec in vbo_exec_vtx_flush (exec=0x651b40) at
vbo/vbo_exec_draw.c:215
#7 0x00002b8748f9d841 in vbo_exec_FlushVertices (ctx=<value optimized out>,
flags=23309) at vbo/vbo_exec_api.c:700
#8 0x00002b8748f5f6c1 in _mesa_PopMatrix () at main/matrix.c:274
#9 0x00002b8747d50e0f in glPopMatrix () at
../../../src/mesa/glapi/glapitemp.h:1570
#10 0x0000000000402d84 in DrawScene () at shadowtex.c:224
#11 0x000000000040363a in Display () at shadowtex.c:647
#12 0x00002b8747a50ea4 in processWindowWorkList (window=0x60b3e0) at
glut_event.c:1306
#13 0x00002b8747a519e2 in glutMainLoop () at glut_event.c:1353
#14 0x0000000000402689 in main (argc=1, argv=0x7fff63079758) at
shadowtex.c:1036
Reproduce steps:
----------------
1. start X
2. compile and run attached case
Current result:
----------------
segment fault
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