[Bug 66349] New: Using SB shader optimization caused segfault in Serious Sam 3: BFE

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=66349

          Priority: medium
            Bug ID: 66349
          Assignee: dri-devel@lists.freedesktop.org
           Summary: Using SB shader optimization caused segfault in
                    Serious Sam 3: BFE
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: thomas.lindroth@gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Drivers/Gallium/r600
           Product: Mesa

Created attachment 81666
  --> https://bugs.freedesktop.org/attachment.cgi?id=81666&action=edit
dmesg, xorg.log

When using R600_DEBUG=sb Serious Sam 3 will segfault in mesa during the intro.
Running without sb works. I'm using git mesa, libdrm, drm-next and
xf86-video-ati-7.1.0. Here is the backtrace.

Program received signal SIGSEGV, Segmentation fault.
0xf385b151 in r600_sb::regbits::clear (this=0xffe4b57c, index=4293178748) at
sb/sb_ra_init.cpp:131
131     sb/sb_ra_init.cpp: No such file or directory.
(gdb) bt
#0  0xf385b151 in r600_sb::regbits::clear (this=0xffe4b57c, index=4293178748)
at sb/sb_ra_init.cpp:131
#1  0xf385b25b in r600_sb::regbits::from_val_set (this=0xffe4b57c, sh=...,
vs=...) at sb/sb_ra_init.cpp:117
#2  0xf385bdaa in regbits (vs=..., sh=..., this=0xffe4b57c) at
sb/sb_ra_init.cpp:62
#3  r600_sb::ra_init::color (this=0xffe4bb18, v=0x15c62168) at
sb/sb_ra_init.cpp:471
#4  0xf385bf81 in r600_sb::ra_init::process_op (this=0xffe4bb18, n=0x15ca7948)
at sb/sb_ra_init.cpp:344
#5  0xf385bfdf in r600_sb::ra_init::ra_node (this=0xffe4bb18, c=0x15cba670) at
sb/sb_ra_init.cpp:294
#6  0xf385bff7 in r600_sb::ra_init::ra_node (this=0xffe4bb18, c=0x15cba608) at
sb/sb_ra_init.cpp:297
#7  0xf385bff7 in r600_sb::ra_init::ra_node (this=0xffe4bb18, c=0x15c8a4e8) at
sb/sb_ra_init.cpp:297
#8  0xf385c03d in r600_sb::ra_init::run (this=0xffe4bb18) at
sb/sb_ra_init.cpp:285
#9  0xf3847450 in r600_sb_bytecode_process (rctx=0xa60a300, bc=0x15c6c9f4,
pshader=0x15c6c9f0, dump_bytecode=0, optimize=2097152)
    at sb/sb_core.cpp:220
#10 0xf38209f8 in r600_pipe_shader_create (ctx=0xa60a300, shader=0x15c6c9e8,
key=...) at r600_shader.c:179
#11 0xf38335b1 in r600_shader_select (ctx=0xa60a300, sel=<optimized out>,
dirty=0x0) at r600_state_common.c:750
#12 0xf38337ea in r600_create_shader_state (ctx=0xa60a300, state=<optimized
out>, pipe_shader_type=1) at r600_state_common.c:797
#13 0xf3833834 in r600_create_ps_state (ctx=0xa60a300, state=0x15c43c28) at
r600_state_common.c:807
#14 0xf365f051 in st_translate_fragment_program (st=0xa73f748, stfp=0x15c7a060,
key=0xffe4c648) at ../../src/mesa/state_tracker/st_program.c:768
#15 0xf365fd20 in st_get_fp_variant (st=0xa73f748, stfp=0x15c7a060,
key=0xffe4c648) at ../../src/mesa/state_tracker/st_program.c:805
#16 0xf3626b85 in update_fp (st=0xa73f748) at
../../src/mesa/state_tracker/st_atom_shader.c:92
#17 0xf3623912 in st_validate_state (st=0xa73f748) at
../../src/mesa/state_tracker/st_atom.c:221
#18 0xf36376fc in st_draw_vbo (ctx=0xa6f8b28, prims=0xffe4c7d8, nr_prims=1,
ib=0xffe4c7f0, index_bounds_valid=1 '\001', min_index=0, 
    max_index=3, tfb_vertcount=0x0) at
../../src/mesa/state_tracker/st_draw.c:210
#19 0xf360da07 in vbo_handle_primitive_restart (ctx=<optimized out>,
prim=<optimized out>, nr_prims=1, ib=0xffe4c7f0, 
    index_bounds_valid=1 '\001', min_index=0, max_index=3) at
../../src/mesa/vbo/vbo_exec_array.c:549
#20 0xf360e8ec in vbo_validated_drawrangeelements (ctx=0xa6f8b28, mode=4,
index_bounds_valid=1 '\001', start=0, end=3, count=6, type=5123, 
    indices=0x0, basevertex=0, numInstances=1, baseInstance=0) at
../../src/mesa/vbo/vbo_exec_array.c:968
#21 0xf360eaa7 in vbo_exec_DrawRangeElementsBaseVertex (mode=4, start=0, end=3,
count=6, type=5123, indices=0x0, basevertex=0)
    at ../../src/mesa/vbo/vbo_exec_array.c:1076
#22 0xf360eaeb in vbo_exec_DrawRangeElements (mode=4, start=0, end=3, count=6,
type=5123, indices=0x0)
    at ../../src/mesa/vbo/vbo_exec_array.c:1096
#23 0x08f0bf3d in ?? ()
#24 0x08a9f8b1 in ?? ()
#25 0x089a8459 in ?? ()
#26 0x089a188e in ?? ()
#27 0x08aadc5a in ?? ()
#28 0x08a9fb0a in ?? ()
#29 0x08a9fd56 in ?? ()
#30 0x08c8e65f in ?? ()
#31 0x08c9284a in ?? ()
#32 0x08b52309 in ?? ()
#33 0x08b66e96 in ?? ()
#34 0x08b92394 in ?? ()
---Type <return> to continue, or q <return> to quit---
#35 0x08b498de in ?? ()
#36 0x08b49a86 in ?? ()
#37 0x08b49be1 in ?? ()
#38 0x08d89685 in ?? ()
#39 0x08b4a23d in ?? ()
#40 0x08b45e77 in ?? ()
#41 0x08b47332 in ?? ()
#42 0x0888e7fa in ?? ()
#43 0x0888867e in ?? ()
#44 0x083e9df5 in ?? ()
#45 0x083ea964 in ?? ()
#46 0x0853f143 in ?? ()
#47 0x089143d0 in ?? ()
#48 0x083a017f in ?? ()
#49 0x083a0293 in ?? ()
#50 0x08a06046 in ?? ()
#51 0x08d85243 in ?? ()
#52 0x08d85678 in ?? ()
#53 0x0804f54b in ?? ()
#54 0xf755a943 in __libc_start_main (main=0x804f520, argc=1, ubp_av=0xffe4e114,
init=0x8f63330, fini=0x8f633a0, rtld_fini=0xf77964e0 <_dl_fini>, 
    stack_end=0xffe4e10c) at libc-start.c:226
#55 0x0838e785 in ?? ()

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