Attachment 110789 Details for Bug 86974 – Gdb output on second assert

Gdb output on second assert

witcher-assert2.txt (text/plain), 5.17 KB, created by Eero Tamminen on 2014-12-12 16:01:47 UTC

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Creator: Eero Tamminen

Created: 2014-12-12 16:01:47 UTC

Size: 5.17 KB

patch

obsolete

>Program received signal SIGABRT, Aborted.
>[Switching to Thread 24656]
>0xf7fd9ca0 in __kernel_vsyscall ()
>(gdb) bt
>#0  0xf7fd9ca0 in __kernel_vsyscall ()
>#1  0xf796f577 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
>#2  0xf7970cf3 in __GI_abort () at abort.c:89
>#3  0xf79686c7 in __assert_fail_base (fmt=0xf7aa5874 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0xf6cd3904 "hstride == 0", 
>    file=file@entry=0xf6cd2cc0 "src/mesa/drivers/dri/i965/brw_eu_emit.c", line=line@entry=285, function=function@entry=0xf6cd412f <__PRETTY_FUNCTION__.40359> "validate_reg")
>    at assert.c:92
>#4  0xf7968777 in __GI___assert_fail (assertion=0xf6cd3904 "hstride == 0", file=0xf6cd2cc0 "src/mesa/drivers/dri/i965/brw_eu_emit.c", line=285, 
>    function=0xf6cd412f <__PRETTY_FUNCTION__.40359> "validate_reg") at assert.c:101
>#5  0xf6b8741a in validate_reg (brw=brw@entry=0xeda44068, inst=inst@entry=0xede645f8, reg=...) at src/mesa/drivers/dri/i965/brw_eu_emit.c:290
>#6  0xf6b88335 in brw_set_src0 (p=0xede636b0, inst=0xede645f8, reg=...) at src/mesa/drivers/dri/i965/brw_eu_emit.c:333
>#7  0xf6b89b40 in brw_alu2 (p=0xede636b0, opcode=<optimized out>, dest=..., src0=..., src1=...) at src/mesa/drivers/dri/i965/brw_eu_emit.c:851
>#8  0xf6bbb6f5 in fs_generator::generate_code (this=0xee0fd470, cfg=0xf4c9e530, dispatch_width=8) at src/mesa/drivers/dri/i965/brw_fs_generator.cpp:1611
>#9  0xf6ba13fe in brw_wm_fs_emit (brw=0xeda44068, mem_ctx=0xf4c9f748, key=0xee0ff01c, prog_data=0xee0fee6c, fp=0xf4ca1f88, prog=0xf4c9a758, final_assembly_size=0xee0fee68)
>    at src/mesa/drivers/dri/i965/brw_fs.cpp:3842
>#10 0xf6c2019f in do_wm_prog (brw=0xeda44068, prog=0xf4c9a758, fp=0xf4ca1f88, key=0xee0ff01c) at src/mesa/drivers/dri/i965/brw_wm.c:212
>#11 0xf6ba0291 in brw_fs_precompile (ctx=0xeda44068, shader_prog=0xf4c9a758, prog=0xf4ca1f88) at src/mesa/drivers/dri/i965/brw_fs.cpp:3920
>#12 0xf6bf7e9b in brw_shader_precompile (sh_prog=0xf4c9a758, ctx=0xeda44068) at src/mesa/drivers/dri/i965/brw_shader.cpp:65
>#13 brw_link_shader (ctx=0xeda44068, shProg=0xf4c9a758) at src/mesa/drivers/dri/i965/brw_shader.cpp:277
>#14 0xf6a9728c in _mesa_glsl_link_shader (ctx=0xeda44068, prog=0xf4c9a758) at ../../../src/mesa/program/ir_to_mesa.cpp:3036
>#15 0xf699ccba in link_program (ctx=0xeda44068, program=<optimized out>) at ../../../src/mesa/main/shaderapi.c:918
>#16 0xf78d57f4 in shared_dispatch_stub_509 (program=3) at ./shared-glapi/glapi_mapi_tmp.h:17885
>
>(gdb) up
>(gdb) up
>(gdb) up
>(gdb) up
>(gdb) up
>#5  0xf6b8741a in validate_reg (brw=brw@entry=0xeda44068, inst=inst@entry=0xede645f8, reg=...) at src/mesa/drivers/dri/i965/brw_eu_emit.c:290
>290           assert(hstride == 0);
>
>(gdb) info locals
>hstride_for_reg = {0, 1, 2, 4}
>vstride_for_reg = {0, 1, 2, 4, 8, 16, 32}
>width_for_reg = {1, 2, 4, 8, 16}
>execsize_for_reg = {1, 2, 4, 8, 16}
>width = 1
>hstride = 1
>vstride = 1
>execsize = <optimized out>
>__PRETTY_FUNCTION__ = "validate_reg"
>
>(gdb) list
>263        width = width_for_reg[reg.width];
>...
>267        execsize = execsize_for_reg[brw_inst_exec_size(brw, inst)];
>268
>269        /* Restrictions from 3.3.10: Register Region Restrictions. */
>270        /* 3. */
>271        assert(execsize >= width);
>...
>283        /* 6. */
>284        if (width == 1) {
>285           assert(hstride == 0);
>286        }
>287
>288        /* 7. */
>289        if (execsize == 1 && width == 1) {
>290           assert(hstride == 0);
>291           assert(vstride == 0);
>292        }
>
>(gdb) print reg
>$1 = <optimized out>
>
>(gdb) up
>#6  0xf6b88335 in brw_set_src0 (p=0xede636b0, inst=0xede645f8, reg=...) at src/mesa/drivers/dri/i965/brw_eu_emit.c:333
>333        validate_reg(brw, inst, reg);
>
>(gdb) up
>#7  0xf6b89b40 in brw_alu2 (p=0xede636b0, opcode=<optimized out>, dest=..., src0=..., src1=...) at src/mesa/drivers/dri/i965/brw_eu_emit.c:851
>851        brw_set_src0(p, insn, src0);
>
>(gdb) list 851
>846     brw_alu2(struct brw_compile *p, unsigned opcode,
>847              struct brw_reg dest, struct brw_reg src0, struct
>brw_reg src1)
>848     {
>849        brw_inst *insn = next_insn(p, opcode);
>850        brw_set_dest(p, insn, dest);
>851        brw_set_src0(p, insn, src0);
>852        brw_set_src1(p, insn, src1);
>853        return insn;
>854     }
>855
>
>(gdb) info locals
>insn = 0xede645f8
>(gdb) print *insn
>$4 = {data = {2395915006056071232, 0}}
>
>(gdb) print opcode
>$7 = <optimized out>
>(gdb) print dest
>$8 = {type = BRW_REGISTER_TYPE_UD, file = 1, nr = 10, subnr = 0, negate = 0, abs = 0, vstride = 1, width = 0, hstride = 1, address_mode = 0, pad0 = 0, dw1 = {bits = {swizzle = 228, 
>      writemask = 15, indirect_offset = 0, pad1 = 0}, f = 5,70048215e-42, d = 4068, ud = 4068}}
>(gdb) print src0
>$9 = {type = BRW_REGISTER_TYPE_UD, file = 1, nr = 10, subnr = 0, negate = 0, abs = 0, vstride = 1, width = 0, hstride = 1, address_mode = 0, pad0 = 0, dw1 = {bits = {swizzle = 228, 
>      writemask = 15, indirect_offset = 0, pad1 = 0}, f = 5,70048215e-42, d = 4068, ud = 4068}}
>(gdb) print src1
>$10 = {type = BRW_REGISTER_TYPE_UD, file = 3, nr = 0, subnr = 0, negate = 0, abs = 0, vstride = 0, width = 0, hstride = 0, address_mode = 0, pad0 = 0, dw1 = {bits = {swizzle = 254, 
>      writemask = 15, indirect_offset = -1, pad1 = 1023}, f = -nan(0x7ffffe), d = -2, ud = 4294967294}}

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