https://bugs.freedesktop.org/show_bug.cgi?id=88619

Bug ID: 88619 Summary: [r300g] multiple tex-miplevel-selection tests crash with "u_blitter:494: Caught recursion. This is a driver bug." Product: Mesa Version: git Hardware: x86 (IA32) OS: All Status: NEW Severity: normal Priority: medium Component: Drivers/Gallium/r300 Assignee: dri-devel@lists.freedesktop.org Reporter: pavel.ondracka@email.cz QA Contact: dri-devel@lists.freedesktop.org

Recently around 20 tex-miplevel-selection test regressed on my RV530.

Specifically this concerns the tex-miplevel-selection {1D,2D,2DRect}Shadow tests eg. tex-miplevel-selection *GradARB 1DShadow -auto -fbo tex-miplevel-selection *GradARB 2DRectShadow -auto -fbo tex-miplevel-selection GL2:texture() 2DRectShadow -auto -fbo and others.

It used to work approximately one month ago and I tried to bisect mesa, however I was unable to find a good commit, so the regression must have happened in some other component. My best guess at this moment is some piglit change. Those tests are the only crashing piglits on my RV530 at the moment.

Backtrace from one selected test: /bin/tex-miplevel-selection *GradARB 1DShadow -auto -fbo r300: DRM version: 2.40.0, Name: ATI RV530, ID: 0x71c5, GB: 1, Z: 2 r300: GART size: 509 MB, VRAM size: 256 MB r300: AA compression RAM: YES, Z compression RAM: YES, HiZ RAM: YES u_blitter:494: Caught recursion. This is a driver bug.

Program received signal SIGSEGV, Segmentation fault. r300_emit_gpu_flush (r300=0x8090ca0, size=9, state=0x807e7d0) at r300_emit.c:349 349 height = surf->cbzb_height; (gdb) bt full #0 r300_emit_gpu_flush (r300=0x8090ca0, size=9, state=0x807e7d0) at r300_emit.c:349 gpuflush = 0x807e7d0 fb = 0x807e798 height = 1 width = 1 cs_copy = 0xb4b3b008 cs_winsys = 0x807e238 cs_count = 0 __func__ = "r300_emit_gpu_flush" #1 0xb738cf2e in r300_emit_dirty_state (r300=0x8090ca0) at r300_emit.c:1450 atom = 0x8090e38 #2 0xb739017e in r300_emit_states (instance_id=-1, index_bias=0, buffer_offset=0, index_buffer=0x0, flags=<optimized out>, r300=0x8090ca0) at r300_render.c:259 indexed = 0 '\000' validate_vbos = <optimized out> emit_states = <optimized out> emit_vertex_arrays = 0 '\000' emit_vertex_arrays_swtcl = 0 '\000' #3 r300_prepare_for_rendering (r300=r300@entry=0x8090ca0, flags=<optimized out>, flags@entry=PREP_EMIT_STATES, index_buffer=0x0, cs_dwords=21, buffer_offset=0, index_bias=0, instance_id=-1) at r300_render.c:311 No locals. #4 0xb7391775 in r300_blitter_draw_rectangle (blitter=0x8062750, x1=0, y1=0, x2=1, y2=1, depth=0, type=UTIL_BLITTER_ATTRIB_COLOR, attrib=0xb76437c0 <color>) at r300_render.c:1141 last_sprite_coord_enable = 0 width = 1 height = 1 vertex_size = <optimized out> dwords = 21 zeros = {f = {0, 0, 0, 0}, i = {0, 0, 0, 0}, ui = {0, 0, 0, 0}} cs_copy = 0xb4b3b008 cs_winsys = <optimized out> cs_count = 0 __func__ = "r300_blitter_draw_rectangle" #5 0xb72da0c4 in util_blitter_clear_custom (blitter=blitter@entry=0x8062750, width=width@entry=1, height=1, num_layers=0, clear_buffers=0, color=0xb76437c0 <color>, depth=0, stencil=0, custom_dsa=0x8064f20, custom_blend=0x0) at util/u_blitter.c:1247 ctx = 0x8062750 pipe = 0x8090ca0 sr = {ref_value = "\000"} #6 0xb72db349 in util_blitter_custom_clear_depth (blitter=0x8062750, width=1, height=1, depth=0, custom_dsa=0x8064f20) at util/u_blitter.c:1273 color = {f = {0, 0, 0, 0}, i = {0, 0, 0, 0}, ui = {0, 0, 0, 0}} #7 0xb73847c7 in r300_decompress_zmask (r300=0x8090ca0) at r300_blit.c:481 fb = 0x807e798 #8 0xb7384eb1 in r300_decompress_zmask_locked_unsafe (r300=0x8090ca0) at r300_blit.c:500 fb = {width = 1, height = 1, nr_cbufs = 0, cbufs = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, zsbuf = 0x81ce978} #9 0xb7384f00 in r300_decompress_zmask_locked (r300=0x8090ca0) at r300_blit.c:509 saved_fb = {width = 900, height = 600, nr_cbufs = 1, cbufs = { 0x81cbde0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, zsbuf = 0x0} #10 0xb739b128 in r300_decompress_depth_textures (r300=0x8090ca0) at r300_state_derived.c:1033 state = 0x8096518 tex = <optimized out> count = 2 i = <optimized out> #11 r300_update_derived_state (r300=0x8090ca0) at r300_state_derived.c:1071 No locals. #12 0xb7391751 in r300_blitter_draw_rectangle (blitter=0x8062750, x1=0, y1=0, x2=960, y2=304, depth=0.600000024, type=UTIL_BLITTER_ATTRIB_COLOR, attrib=0x815ee98) at r300_render.c:1136 last_sprite_coord_enable = 0 width = 960 height = 304 vertex_size = <optimized out> dwords = 21 zeros = {f = {0, 0, 0, 0}, i = {0, 0, 0, 0}, ui = {0, 0, 0, 0}} cs_copy = 0xb4b3b008 cs_winsys = <optimized out> cs_count = 0 __func__ = "r300_blitter_draw_rectangle" #13 0xb72da0c4 in util_blitter_clear_custom (blitter=0x8062750, width=<optimized out>, height=304, num_layers=1, clear_buffers=4, color=0x815ee98, depth=0.60000002384185791, stencil=0, custom_dsa=0x0, custom_blend=0x0) at util/u_blitter.c:1247 ctx = 0x8062750 pipe = 0x8090ca0 sr = {ref_value = "\000"} #14 0xb72db307 in util_blitter_clear (blitter=<optimized out>, width=<optimized out>, height=<optimized out>, num_layers=<optimized out>, clear_buffers=<optimized out>, color=<optimized out>, depth=<optimized out>, stencil=0) at util/u_blitter.c:1263 No locals. #15 0xb7383458 in r300_clear (pipe=0x8090ca0, buffers=4, color=0x815ee98, depth=0.60000002384185791, stencil=0) at r300_blit.c:368 fb = <optimized out> hyperz = 0x80819c0 width = 960 height = 304 hyperz_dcv = 2576980224 __func__ = "r300_clear" #16 0xb71952fb in st_Clear (ctx=0x815dd38, mask=256) at ../../src/mesa/state_tracker/st_cb_clear.c:532 depthRb = <optimized out> stencilRb = <optimized out> quad_buffers = <optimized out> clear_buffers = <optimized out> i = <optimized out> #17 0xb7042fb2 in _mesa_Clear (mask=16384) at ../../src/mesa/main/clear.c:222 bufferMask = 256 ctx = <optimized out> __func__ = "_mesa_Clear" __PRETTY_FUNCTION__ = "_mesa_Clear" #18 0x0804c879 in piglit_display () at /home/Paulie/piglit/tests/texturing/tex-miplevel-selection.c:1429 fetch_level = -1208610337 baselevel = -1073745544 maxlevel = 0 minlod = -1208152064 maxlod = 3 bias = 6 mipfilter = 1 expected_level = 134534584 x = 134533911 y = 33190 total = 0 failed = 1 start_bias = -5 end_bias = 5 end_min_lod = 5 end_max_lod = 5 end_mipfilter = 1 end_fetch_level = 5 #19 0xb7f611f8 in run_test (gl_fw=0x8051008, argc=3, argv=0xbffff2a4) at /home/Paulie/piglit/tests/util/piglit-framework-gl/piglit_fbo_framework.c:52 result = PIGLIT_PASS #20 0xb7f48e5a in piglit_gl_test_run (argc=3, argv=0xbffff2a4, config=0xbffff1b8) at /home/Paulie/piglit/tests/util/piglit-framework-gl.c:151 __PRETTY_FUNCTION__ = "piglit_gl_test_run" #21 0x08049612 in main (argc=3, argv=0xbffff2a4) at /home/Paulie/piglit/tests/texturing/tex-miplevel-selection.c:67 config = {supports_gl_es_version = 0, supports_gl_core_version = 0, supports_gl_compat_version = 10, require_forward_compatible_context = false, require_debug_context = false, window_width = 900, window_height = 600, window_samples = 0, window_visual = 5, requires_displayed_window = false, init = 0x8049667 <piglit_init>, display = 0x804c780 <piglit_display>, subtests = 0x0, selected_subtests = 0x0, num_selected_subtests = 0} __PRETTY_FUNCTION__ = "main"

GPU:RV530 Kernel: 3.17.8-300.fc21.i686 Mesa: 5b01512df3328711968dea7240ae817721c79774 Libdrm: eca91cf163d50090db36d0b2abbffcff813a2adf piglit: 25ac42dbd654daee3d5a0cf09a4212c5144eb74b