http://bugs.freedesktop.org/show_bug.cgi?id=15573
Summary: seg fault when call glReadPixel
Product: Mesa
Version: CVS
Platform: x86 (IA32)
OS/Version: Linux (All)
Status: NEW
Severity: critical
Priority: high
Component: Drivers/DRI/i915
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
Created an attachment (id=15994)
--> (http://bugs.freedesktop.org/attachment.cgi?id=15994)
test case
When call glReadPixel, it seg fault with bt info:
#0 0xb7aba36e in i915_emit_state (intel=0x8058728) at i915_vtbl.c:325
#1 0xb7ac787c in intelRenderStart (ctx=0x8058728) at intel_tris.c:917
#2 0xb7aa2de1 in intel_run_render (ctx=0x8058728, stage=0x809b834)
at intel_render.c:217
#3 0xb7b66ebf in _tnl_run_pipeline (ctx=0x8058728) at tnl/t_pipeline.c:158
#4 0xb7ac78e9 in intelRunPipeline (ctx=0x8058728) at intel_tris.c:906
#5 0xb7b67428 in _tnl_draw_prims (ctx=0x8058728, arrays=0x8089d40,
prim=0x808889c, nr_prims=1, ib=0x0, min_index=0, max_index=3)
at tnl/t_draw.c:402
#6 0xb7b5f9e1 in vbo_exec_vtx_flush (exec=0x8088778)
at vbo/vbo_exec_draw.c:215
#7 0xb7b5b208 in vbo_exec_FlushVertices (ctx=0x8058728, flags=1)
at vbo/vbo_exec_api.c:700
#8 0xb7bff8e1 in _mesa_ReadPixels (x=50, y=50, width=1, height=1,
format=6407, type=5126, pixels=0xbffdb148) at main/drawpix.c:294
#9 0x0804894c in test () at mustpass2.c:31
#10 0x080489c3 in display () at mustpass2.c:44
#11 0xb7f0d757 in processWindowWorkList (window=0x804f448) at glut_event.c:1306
#12 0xb7f0e3b8 in glutMainLoop () at glut_event.c:1353
#13 0x08048a3f in main (argc=1, argv=0xbffe5034) at testcase.c:56
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