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Valgrind detection #2

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kassane opened this issue Apr 17, 2024 · 1 comment
Open

Valgrind detection #2

kassane opened this issue Apr 17, 2024 · 1 comment
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documentation Improvements or additions to documentation

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@kassane
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kassane commented Apr 17, 2024 •
edited
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OS: archlinux(glibc)
Arch: x86_64 (zen3)

valgrind - Output 
$ valgrind --leak-check=full --show-reachable=yes --error-limit=no --track-origins=yes ./zig-out/bin/example1
==37909== Memcheck, a memory error detector
==37909== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
==37909== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
==37909== Command: ./zig-out/bin/example1
==37909== 
Allocating 1024 bytes of memory...
==37909== Conditional jump or move depends on uninitialised value(s)
==37909==    at 0x10E650: GC_push_all_eager (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mark.c:1653)
==37909==    by 0x12840F: GC_with_callee_saves_pushed (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mach_dep.c:343)
==37909==    by 0x10FEAC: GC_push_regs_and_stack (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mark_rts.c:912)
==37909==    by 0x10FEAC: GC_push_roots (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mark_rts.c:989)
==37909==    by 0x10C620: push_roots_and_advance (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mark.c:338)
==37909==    by 0x10C620: GC_mark_some (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mark.c:420)
==37909==    by 0x11EE47: GC_stopped_mark (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/alloc.c:892)
==37909==    by 0x11EA1A: GC_try_to_collect_inner (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/alloc.c:607)
==37909==    by 0x110D63: GC_init (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/misc.c:1441)
==37909==    by 0x10A681: main (in /home/kassane/gc_alloc/bdwgc-d/zig-out/bin/example1)
==37909==  Uninitialised value was created by a stack allocation
==37909==    at 0x12835D: GC_with_callee_saves_pushed (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mach_dep.c:229)
==37909== 
==37909== Conditional jump or move depends on uninitialised value(s)
==37909==    at 0x10E64B: GC_push_all_eager (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mark.c:1653)
==37909==    by 0x12840F: GC_with_callee_saves_pushed (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mach_dep.c:343)
==37909==    by 0x10FEAC: GC_push_regs_and_stack (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mark_rts.c:912)
==37909==    by 0x10FEAC: GC_push_roots (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mark_rts.c:989)
==37909==    by 0x10C620: push_roots_and_advance (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mark.c:338)
==37909==    by 0x10C620: GC_mark_some (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mark.c:420)
==37909==    by 0x11EE47: GC_stopped_mark (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/alloc.c:892)
==37909==    by 0x11EA1A: GC_try_to_collect_inner (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/alloc.c:607)
==37909==    by 0x110D63: GC_init (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/misc.c:1441)
==37909==    by 0x10A681: main (in /home/kassane/gc_alloc/bdwgc-d/zig-out/bin/example1)
==37909==  Uninitialised value was created by a stack allocation
==37909==    at 0x12835D: GC_with_callee_saves_pushed (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mach_dep.c:229)
==37909== 
==37909== Conditional jump or move depends on uninitialised value(s)
==37909==    at 0x10CB21: GC_mark_from (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mark.c:848)
==37909==    by 0x10C3E1: GC_mark_some (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mark.c:0)
==37909==    by 0x11EE47: GC_stopped_mark (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/alloc.c:892)
==37909==    by 0x11EA1A: GC_try_to_collect_inner (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/alloc.c:607)
==37909==    by 0x110D63: GC_init (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/misc.c:1441)
==37909==    by 0x10A681: main (in /home/kassane/gc_alloc/bdwgc-d/zig-out/bin/example1)
==37909==  Uninitialised value was created by a stack allocation
==37909==    at 0x498CD00: __libc_start_main@@GLIBC_2.34 (libc-start.c:242)
==37909== 
==37909== Conditional jump or move depends on uninitialised value(s)
==37909==    at 0x10CB46: GC_mark_from (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mark.c:858)
==37909==    by 0x10C3E1: GC_mark_some (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mark.c:0)
==37909==    by 0x11EE47: GC_stopped_mark (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/alloc.c:892)
==37909==    by 0x11EA1A: GC_try_to_collect_inner (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/alloc.c:607)
==37909==    by 0x110D63: GC_init (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/misc.c:1441)
==37909==    by 0x10A681: main (in /home/kassane/gc_alloc/bdwgc-d/zig-out/bin/example1)
==37909==  Uninitialised value was created by a stack allocation
==37909==    at 0x498CC50: (below main) (libc_start_call_main.h:29)
==37909== 
==37909== Conditional jump or move depends on uninitialised value(s)
==37909==    at 0x10CB26: GC_mark_from (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mark.c:848)
==37909==    by 0x10C3E1: GC_mark_some (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mark.c:0)
==37909==    by 0x11EE47: GC_stopped_mark (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/alloc.c:892)
==37909==    by 0x11EA1A: GC_try_to_collect_inner (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/alloc.c:607)
==37909==    by 0x110D63: GC_init (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/misc.c:1441)
==37909==    by 0x10A681: main (in /home/kassane/gc_alloc/bdwgc-d/zig-out/bin/example1)
==37909==  Uninitialised value was created by a stack allocation
==37909==    at 0x498CC50: (below main) (libc_start_call_main.h:29)
==37909== 
==37909== Conditional jump or move depends on uninitialised value(s)
==37909==    at 0x10CB41: GC_mark_from (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mark.c:858)
==37909==    by 0x10C3E1: GC_mark_some (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/mark.c:0)
==37909==    by 0x11EE47: GC_stopped_mark (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/alloc.c:892)
==37909==    by 0x11EA1A: GC_try_to_collect_inner (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/alloc.c:607)
==37909==    by 0x110D63: GC_init (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/misc.c:1441)
==37909==    by 0x10A681: main (in /home/kassane/gc_alloc/bdwgc-d/zig-out/bin/example1)
==37909==  Uninitialised value was created by a stack allocation
==37909==    at 0x1107C0: GC_init (.cache/zig/p/1220dd93f4ff1564d7174a0af33d647c1901fc63c4edb4f1ace710a4af1c2d65174e/misc.c:988)
==37909== 
==37909== 
==37909== HEAP SUMMARY:
==37909==     in use at exit: 0 bytes in 0 blocks
==37909==   total heap usage: 8 allocs, 8 frees, 3,096 bytes allocated
==37909== 
==37909== All heap blocks were freed -- no leaks are possible
==37909== 
==37909== For lists of detected and suppressed errors, rerun with: -s
==37909== ERROR SUMMARY: 118 errors from 6 contexts (suppressed: 0 from 0)

Suppress file (.supp)

{
   <insert_a_suppression_name_here>
   Memcheck:Cond
   fun:GC_push_all_eager
   fun:GC_with_callee_saves_pushed
   fun:GC_push_regs_and_stack
   fun:GC_push_roots
   fun:push_roots_and_advance
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_try_to_collect_inner
   fun:GC_init
   fun:main
}
{
   <insert_a_suppression_name_here>
   Memcheck:Cond
   fun:GC_mark_from
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_try_to_collect_inner
   fun:GC_init
   fun:main
}
@kassane kassane added the documentation Improvements or additions to documentation label Apr 17, 2024
@kassane
Copy link
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kassane commented Apr 18, 2024 •
edited
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example3 - mix druntime with bdwgc-d:

suppression-file generated (Druntime leak) 
{
   <insert_a_suppression_name_here>
   Memcheck:Cond
   fun:GC_push_all_eager
   fun:GC_push_current_stack
   fun:GC_with_callee_saves_pushed
   fun:GC_push_regs_and_stack
   fun:GC_push_roots
   fun:push_roots_and_advance
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_try_to_collect_inner
   fun:GC_init
   fun:_Dmain
   fun:_D2rt6dmain212_d_run_main2UAAamPUQgZiZ6runAllMFZv
}
{
   <insert_a_suppression_name_here>
   Memcheck:Cond
   fun:GC_mark_from
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_try_to_collect_inner
   fun:GC_init
   fun:_Dmain
   fun:_D2rt6dmain212_d_run_main2UAAamPUQgZiZ6runAllMFZv
   fun:_d_run_main2
   fun:_d_run_main
   fun:main
}
{
   <insert_a_suppression_name_here>
   Memcheck:Value8
   fun:GC_mark_from
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_try_to_collect_inner
   fun:GC_init
   fun:_Dmain
   fun:_D2rt6dmain212_d_run_main2UAAamPUQgZiZ6runAllMFZv
   fun:_d_run_main2
   fun:_d_run_main
   fun:main
}
{
   <insert_a_suppression_name_here>
   Memcheck:Cond
   fun:GC_header_cache_miss
   fun:GC_mark_from
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_try_to_collect_inner
   fun:GC_init
   fun:_Dmain
   fun:_D2rt6dmain212_d_run_main2UAAamPUQgZiZ6runAllMFZv
   fun:_d_run_main2
   fun:_d_run_main
   fun:main
}
{
   <insert_a_suppression_name_here>
   Memcheck:Value8
   fun:GC_header_cache_miss
   fun:GC_mark_from
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_try_to_collect_inner
   fun:GC_init
   fun:_Dmain
   fun:_D2rt6dmain212_d_run_main2UAAamPUQgZiZ6runAllMFZv
   fun:_d_run_main2
   fun:_d_run_main
   fun:main
}
{
   <insert_a_suppression_name_here>
   Memcheck:Cond
   fun:GC_find_header
   fun:GC_add_to_black_list_stack
   fun:GC_header_cache_miss
   fun:GC_mark_from
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_try_to_collect_inner
   fun:GC_init
   fun:_Dmain
   fun:_D2rt6dmain212_d_run_main2UAAamPUQgZiZ6runAllMFZv
   fun:_d_run_main2
   fun:_d_run_main
}
{
   <insert_a_suppression_name_here>
   Memcheck:Value8
   fun:GC_find_header
   fun:GC_add_to_black_list_stack
   fun:GC_header_cache_miss
   fun:GC_mark_from
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_try_to_collect_inner
   fun:GC_init
   fun:_Dmain
   fun:_D2rt6dmain212_d_run_main2UAAamPUQgZiZ6runAllMFZv
   fun:_d_run_main2
   fun:_d_run_main
}
{
   <insert_a_suppression_name_here>
   Memcheck:Cond
   fun:GC_add_to_black_list_stack
   fun:GC_header_cache_miss
   fun:GC_mark_from
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_try_to_collect_inner
   fun:GC_init
   fun:_Dmain
   fun:_D2rt6dmain212_d_run_main2UAAamPUQgZiZ6runAllMFZv
   fun:_d_run_main2
   fun:_d_run_main
   fun:main
}
{
   <insert_a_suppression_name_here>
   Memcheck:Value8
   fun:GC_add_to_black_list_stack
   fun:GC_header_cache_miss
   fun:GC_mark_from
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_try_to_collect_inner
   fun:GC_init
   fun:_Dmain
   fun:_D2rt6dmain212_d_run_main2UAAamPUQgZiZ6runAllMFZv
   fun:_d_run_main2
   fun:_d_run_main
   fun:main
}
{
   <insert_a_suppression_name_here>
   Memcheck:Cond
   fun:GC_mark_and_push_stack
   fun:GC_push_all_eager
   fun:GC_push_current_stack
   fun:GC_with_callee_saves_pushed
   fun:GC_push_regs_and_stack
   fun:GC_push_roots
   fun:push_roots_and_advance
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_maybe_gc
   fun:GC_collect_a_little_inner
   fun:GC_start_incremental_collection
}
{
   <insert_a_suppression_name_here>
   Memcheck:Value8
   fun:GC_mark_and_push_stack
   fun:GC_push_all_eager
   fun:GC_push_current_stack
   fun:GC_with_callee_saves_pushed
   fun:GC_push_regs_and_stack
   fun:GC_push_roots
   fun:push_roots_and_advance
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_maybe_gc
   fun:GC_collect_a_little_inner
   fun:GC_start_incremental_collection
}
{
   <insert_a_suppression_name_here>
   Memcheck:Cond
   fun:GC_find_header
   fun:GC_add_to_black_list_stack
   fun:GC_mark_and_push_stack
   fun:GC_push_all_eager
   fun:GC_push_current_stack
   fun:GC_with_callee_saves_pushed
   fun:GC_push_regs_and_stack
   fun:GC_push_roots
   fun:push_roots_and_advance
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_maybe_gc
}
{
   <insert_a_suppression_name_here>
   Memcheck:Value8
   fun:GC_find_header
   fun:GC_add_to_black_list_stack
   fun:GC_mark_and_push_stack
   fun:GC_push_all_eager
   fun:GC_push_current_stack
   fun:GC_with_callee_saves_pushed
   fun:GC_push_regs_and_stack
   fun:GC_push_roots
   fun:push_roots_and_advance
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_maybe_gc
}
{
   <insert_a_suppression_name_here>
   Memcheck:Cond
   fun:GC_add_to_black_list_stack
   fun:GC_mark_and_push_stack
   fun:GC_push_all_eager
   fun:GC_push_current_stack
   fun:GC_with_callee_saves_pushed
   fun:GC_push_regs_and_stack
   fun:GC_push_roots
   fun:push_roots_and_advance
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_maybe_gc
   fun:GC_collect_a_little_inner
}
{
   <insert_a_suppression_name_here>
   Memcheck:Value8
   fun:GC_add_to_black_list_stack
   fun:GC_mark_and_push_stack
   fun:GC_push_all_eager
   fun:GC_push_current_stack
   fun:GC_with_callee_saves_pushed
   fun:GC_push_regs_and_stack
   fun:GC_push_roots
   fun:push_roots_and_advance
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_maybe_gc
   fun:GC_collect_a_little_inner
}
{
   <insert_a_suppression_name_here>
   Memcheck:Cond
   fun:GC_push_all_eager
   fun:GC_push_all_stack
   fun:GC_push_all_stack_sections
   fun:GC_push_all_stacks
   fun:GC_default_push_other_roots
   fun:GC_push_roots
   fun:push_roots_and_advance
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_maybe_gc
   fun:GC_collect_a_little_inner
   fun:GC_start_incremental_collection
}
{
   <insert_a_suppression_name_here>
   Memcheck:Cond
   fun:GC_mark_and_push_stack
   fun:GC_push_all_eager
   fun:GC_push_all_stack
   fun:GC_push_all_stack_sections
   fun:GC_push_all_stacks
   fun:GC_default_push_other_roots
   fun:GC_push_roots
   fun:push_roots_and_advance
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_maybe_gc
   fun:GC_collect_a_little_inner
}
{
   <insert_a_suppression_name_here>
   Memcheck:Value8
   fun:GC_mark_and_push_stack
   fun:GC_push_all_eager
   fun:GC_push_all_stack
   fun:GC_push_all_stack_sections
   fun:GC_push_all_stacks
   fun:GC_default_push_other_roots
   fun:GC_push_roots
   fun:push_roots_and_advance
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_maybe_gc
   fun:GC_collect_a_little_inner
}
{
   <insert_a_suppression_name_here>
   Memcheck:Cond
   fun:GC_add_to_black_list_stack
   fun:GC_mark_and_push_stack
   fun:GC_push_all_eager
   fun:GC_push_all_stack
   fun:GC_push_all_stack_sections
   fun:GC_push_all_stacks
   fun:GC_default_push_other_roots
   fun:GC_push_roots
   fun:push_roots_and_advance
   fun:GC_mark_some
   fun:GC_stopped_mark
   fun:GC_maybe_gc
}
{
   <insert_a_suppression_name_here>
   Memcheck:ReallocZero
   fun:realloc
   fun:_D4core6thread10threadbase10ThreadBase3addFNbNiCQBuQBsQBoQBfbZv
   fun:thread_entryPoint
   fun:start_thread
   fun:clone
}
{
   <insert_a_suppression_name_here>
   Memcheck:Cond
   fun:GC_is_black_listed
   fun:find_nonbl_hblk
   fun:GC_allochblk_nth
   fun:GC_allochblk
   fun:GC_new_hblk
   fun:GC_allocobj
   fun:GC_generic_malloc_inner_small
   fun:GC_generic_malloc_aligned
   fun:GC_malloc_kind_aligned_global
   fun:GC_malloc_kind_global
   fun:GC_malloc_kind
   fun:GC_malloc
}
{
   <insert_a_suppression_name_here>
   Memcheck:Leak
   match-leak-kinds: reachable
   fun:realloc
   fun:_D4core8internal9container6common8xreallocFNbNiPvmZQe
   fun:_D4core8internal9container5array__T5ArrayTSQBp2gc11gcinterface5RangeZQBi__T10insertBackZQnMFNbNiQCcZv
   fun:_DThn16_4core8internal2gc4impl5protoQo7ProtoGC8addRangeMFNbNiPvmxC8TypeInfoZv
   fun:_D2rt6memory16initStaticDataGCFZ14__foreachbody1MFNbNiKSQCc19sections_elf_shared3DSOZi
   fun:_D2rt19sections_elf_shared3DSO7opApplyFMDFKSQBqQBqQyZiZi
   fun:rt_init
   fun:_D2rt6dmain212_d_run_main2UAAamPUQgZiZ6runAllMFZv
   fun:_d_run_main2
   fun:_d_run_main
   fun:main
}
{
   <insert_a_suppression_name_here>
   Memcheck:Leak
   match-leak-kinds: possible
   fun:malloc
   fun:_D4core8internal2gc4impl12conservativeQw10initializeFZCQCbQBq11gcinterface2GC
   fun:_D4core2gc8registry16createGCInstanceFAyaZCQBpQBn11gcinterface2GC
   fun:gc_init
   fun:gc_init_nothrow
   fun:_DThn16_4core8internal2gc4impl5protoQo7ProtoGC6mallocMFNbmkMxC8TypeInfoZPv
   fun:_Dmain
   fun:_D2rt6dmain212_d_run_main2UAAamPUQgZiZ6runAllMFZv
   fun:_d_run_main2
   fun:_d_run_main
   fun:main
}

Reference

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