Thread sanitization issues with garbage collection #52690
Description
I tried to build Julia 1.10 with thread sanitizer support but I just get an onslaught of data race warnings about the Julia runtime itself, in particular from the garbage collection. Are these warnings real? Here are some of them (300 lines out of 39,701 - just from opening the REPL):
(expand)
==================
WARNING: ThreadSanitizer: data race (pid=756256)
Write of size 8 at 0x7ff6d34cc790 by thread T3:
#0 gc_debug_alloc_check /home/mc2473/juliasanitizer/julia/src/gc-debug.c:481:9 (libjulia-internal-debug.so.1.10+0x146d64)
#1 jl_gc_debug_check_other /home/mc2473/juliasanitizer/julia/src/gc-debug.c:494:12 (libjulia-internal-debug.so.1.10+0x146df0)
#2 maybe_collect /home/mc2473/juliasanitizer/julia/src/gc.c:936:62 (libjulia-internal-debug.so.1.10+0x1389c4)
#3 jl_gc_pool_alloc_inner /home/mc2473/juliasanitizer/julia/src/gc.c:1293:5 (libjulia-internal-debug.so.1.10+0x12e1f2)
#4 jl_gc_pool_alloc_noinline /home/mc2473/juliasanitizer/julia/src/gc.c:1350:12 (libjulia-internal-debug.so.1.10+0x12e68d)
#5 jl_gc_alloc_ /home/mc2473/juliasanitizer/julia/src/./julia_internal.h:477:13 (libjulia-internal-debug.so.1.10+0xb95c6)
#6 jl_init_root_task /home/mc2473/juliasanitizer/julia/src/task.c:1637:33 (libjulia-internal-debug.so.1.10+0xb9a0d)
#7 jl_threadfun /home/mc2473/juliasanitizer/julia/src/partr.c:180:21 (libjulia-internal-debug.so.1.10+0x1257d3)
Previous write of size 8 at 0x7ff6d34cc790 by thread T2:
#0 gc_debug_alloc_check /home/mc2473/juliasanitizer/julia/src/gc-debug.c:481:9 (libjulia-internal-debug.so.1.10+0x146d64)
#1 jl_gc_debug_check_other /home/mc2473/juliasanitizer/julia/src/gc-debug.c:494:12 (libjulia-internal-debug.so.1.10+0x146df0)
#2 maybe_collect /home/mc2473/juliasanitizer/julia/src/gc.c:936:62 (libjulia-internal-debug.so.1.10+0x1389c4)
#3 jl_gc_pool_alloc_inner /home/mc2473/juliasanitizer/julia/src/gc.c:1293:5 (libjulia-internal-debug.so.1.10+0x12e1f2)
#4 jl_gc_pool_alloc_noinline /home/mc2473/juliasanitizer/julia/src/gc.c:1350:12 (libjulia-internal-debug.so.1.10+0x12e68d)
#5 jl_gc_alloc_ /home/mc2473/juliasanitizer/julia/src/./julia_internal.h:477:13 (libjulia-internal-debug.so.1.10+0xb95c6)
#6 jl_init_root_task /home/mc2473/juliasanitizer/julia/src/task.c:1637:33 (libjulia-internal-debug.so.1.10+0xb9a0d)
#7 jl_threadfun /home/mc2473/juliasanitizer/julia/src/partr.c:180:21 (libjulia-internal-debug.so.1.10+0x1257d3)
Location is global 'jl_gc_debug_env' of size 152 at 0x7ff6d34cc758 (libjulia-internal-debug.so.1.10+0x653790)
Thread T3 (tid=756262, running) created by main thread at:
#0 pthread_create /workspace/srcdir/llvm-project/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp:1022 (julia-debug+0x694b2)
#1 uv_thread_create_ex /workspace/srcdir/libuv/src/unix/thread.c:270 (libjulia-internal-debug.so.1.10+0x265de6)
#2 _finish_julia_init /home/mc2473/juliasanitizer/julia/src/init.c:890:5 (libjulia-internal-debug.so.1.10+0xb45c5)
#3 julia_init /home/mc2473/juliasanitizer/julia/src/init.c:844:5 (libjulia-internal-debug.so.1.10+0xb3fd6)
#4 jl_repl_entrypoint /home/mc2473/juliasanitizer/julia/src/jlapi.c:725:5 (libjulia-internal-debug.so.1.10+0x15e082)
#5 jl_load_repl /home/mc2473/juliasanitizer/julia/cli/loader_lib.c:568:12 (libjulia-debug.so.1.10+0x148b3)
#6 main /home/mc2473/juliasanitizer/julia/cli/loader_exe.c:58:15 (julia-debug+0xecfed)
Thread T2 (tid=756261, running) created by main thread at:
#0 pthread_create /workspace/srcdir/llvm-project/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp:1022 (julia-debug+0x694b2)
#1 uv_thread_create_ex /workspace/srcdir/libuv/src/unix/thread.c:270 (libjulia-internal-debug.so.1.10+0x265de6)
#2 _finish_julia_init /home/mc2473/juliasanitizer/julia/src/init.c:890:5 (libjulia-internal-debug.so.1.10+0xb45c5)
#3 julia_init /home/mc2473/juliasanitizer/julia/src/init.c:844:5 (libjulia-internal-debug.so.1.10+0xb3fd6)
#4 jl_repl_entrypoint /home/mc2473/juliasanitizer/julia/src/jlapi.c:725:5 (libjulia-internal-debug.so.1.10+0x15e082)
#5 jl_load_repl /home/mc2473/juliasanitizer/julia/cli/loader_lib.c:568:12 (libjulia-debug.so.1.10+0x148b3)
#6 main /home/mc2473/juliasanitizer/julia/cli/loader_exe.c:58:15 (julia-debug+0xecfed)
SUMMARY: ThreadSanitizer: data race /home/mc2473/juliasanitizer/julia/src/gc-debug.c:481:9 in gc_debug_alloc_check
==================
==================
WARNING: ThreadSanitizer: data race (pid=756256)
Write of size 8 at 0x7ff6d34cc790 by main thread:
#0 gc_debug_alloc_check /home/mc2473/juliasanitizer/julia/src/gc-debug.c:481:9 (libjulia-internal-debug.so.1.10+0x146d64)
#1 jl_gc_debug_check_other /home/mc2473/juliasanitizer/julia/src/gc-debug.c:494:12 (libjulia-internal-debug.so.1.10+0x146df0)
#2 maybe_collect /home/mc2473/juliasanitizer/julia/src/gc.c:936:62 (libjulia-internal-debug.so.1.10+0x1389c4)
#3 jl_gc_pool_alloc_inner /home/mc2473/juliasanitizer/julia/src/gc.c:1293:5 (libjulia-internal-debug.so.1.10+0x12e1f2)
#4 jl_gc_pool_alloc_noinline /home/mc2473/juliasanitizer/julia/src/gc.c:1350:12 (libjulia-internal-debug.so.1.10+0x12e68d)
#5 ijl_alloc_string /home/mc2473/juliasanitizer/julia/src/array.c:505:13 (libjulia-internal-debug.so.1.10+0xbe6f4)
#6 ijl_pchar_to_string /home/mc2473/juliasanitizer/julia/src/array.c:521:21 (libjulia-internal-debug.so.1.10+0xbe591)
#7 ijl_cstr_to_string /home/mc2473/juliasanitizer/julia/src/array.c:529:12 (libjulia-internal-debug.so.1.10+0xbe999)
#8 ijl_get_cpu_name /home/mc2473/juliasanitizer/julia/src/./processor_x86.cpp:1051:12 (libjulia-internal-debug.so.1.10+0x1b1975)
#9 julia___init___35106 sysinfo.jl:118 (sys-debug.so+0x220cf1)
#10 jfptr___init___35107 <null> (sys-debug.so+0xbc1a6b)
#11 _jl_invoke /home/mc2473/juliasanitizer/julia/src/gf.c:2875:35 (libjulia-internal-debug.so.1.10+0x693f5)
#12 ijl_apply_generic /home/mc2473/juliasanitizer/julia/src/gf.c:3076:12 (libjulia-internal-debug.so.1.10+0x69649)
#13 jl_apply /home/mc2473/juliasanitizer/julia/src/./julia.h:1982:12 (libjulia-internal-debug.so.1.10+0xebf1c)
#14 jl_module_run_initializer /home/mc2473/juliasanitizer/julia/src/toplevel.c:76:9 (libjulia-internal-debug.so.1.10+0xebd6d)
#15 _finish_julia_init /home/mc2473/juliasanitizer/julia/src/init.c:901:13 (libjulia-internal-debug.so.1.10+0xb475c)
#16 julia_init /home/mc2473/juliasanitizer/julia/src/init.c:844:5 (libjulia-internal-debug.so.1.10+0xb3fd6)
#17 jl_repl_entrypoint /home/mc2473/juliasanitizer/julia/src/jlapi.c:725:5 (libjulia-internal-debug.so.1.10+0x15e082)
#18 jl_load_repl /home/mc2473/juliasanitizer/julia/cli/loader_lib.c:568:12 (libjulia-debug.so.1.10+0x148b3)
#19 main /home/mc2473/juliasanitizer/julia/cli/loader_exe.c:58:15 (julia-debug+0xecfed)
Previous write of size 8 at 0x7ff6d34cc790 by thread T3:
#0 gc_debug_alloc_check /home/mc2473/juliasanitizer/julia/src/gc-debug.c:481:9 (libjulia-internal-debug.so.1.10+0x146d64)
#1 jl_gc_debug_check_other /home/mc2473/juliasanitizer/julia/src/gc-debug.c:494:12 (libjulia-internal-debug.so.1.10+0x146df0)
#2 maybe_collect /home/mc2473/juliasanitizer/julia/src/gc.c:936:62 (libjulia-internal-debug.so.1.10+0x1389c4)
#3 jl_gc_pool_alloc_inner /home/mc2473/juliasanitizer/julia/src/gc.c:1293:5 (libjulia-internal-debug.so.1.10+0x12e1f2)
#4 jl_gc_pool_alloc_noinline /home/mc2473/juliasanitizer/julia/src/gc.c:1350:12 (libjulia-internal-debug.so.1.10+0x12e68d)
#5 jl_gc_alloc_ /home/mc2473/juliasanitizer/julia/src/./julia_internal.h:477:13 (libjulia-internal-debug.so.1.10+0xf9666)
#6 ijl_box_uint64 /home/mc2473/juliasanitizer/julia/src/datatype.c:1330:1 (libjulia-internal-debug.so.1.10+0x102141)
#7 jl_type_infer /home/mc2473/juliasanitizer/julia/src/gf.c:368:16 (libjulia-internal-debug.so.1.10+0x55d3a)
#8 jl_generate_fptr_impl /home/mc2473/juliasanitizer/julia/src/jitlayers.cpp:502:19 (libjulia-codegen-debug.so.1.10+0x18ea1f)
#9 jl_compile_method_internal /home/mc2473/juliasanitizer/julia/src/gf.c:2480:16 (libjulia-internal-debug.so.1.10+0x63611)
#10 _jl_invoke /home/mc2473/juliasanitizer/julia/src/gf.c:2886:16 (libjulia-internal-debug.so.1.10+0x694c0)
#11 ijl_apply_generic /home/mc2473/juliasanitizer/julia/src/gf.c:3076:12 (libjulia-internal-debug.so.1.10+0x69649)
#12 jl_apply /home/mc2473/juliasanitizer/julia/src/./julia.h:1982:12 (libjulia-internal-debug.so.1.10+0xb650c)
#13 jl_finish_task /home/mc2473/juliasanitizer/julia/src/task.c:320:13 (libjulia-internal-debug.so.1.10+0xb6442)
#14 jl_threadfun /home/mc2473/juliasanitizer/julia/src/partr.c:191:5 (libjulia-internal-debug.so.1.10+0x125822)
Location is global 'jl_gc_debug_env' of size 152 at 0x7ff6d34cc758 (libjulia-internal-debug.so.1.10+0x653790)
Thread T3 (tid=756262, running) created by main thread at:
#0 pthread_create /workspace/srcdir/llvm-project/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp:1022 (julia-debug+0x694b2)
#1 uv_thread_create_ex /workspace/srcdir/libuv/src/unix/thread.c:270 (libjulia-internal-debug.so.1.10+0x265de6)
#2 _finish_julia_init /home/mc2473/juliasanitizer/julia/src/init.c:890:5 (libjulia-internal-debug.so.1.10+0xb45c5)
#3 julia_init /home/mc2473/juliasanitizer/julia/src/init.c:844:5 (libjulia-internal-debug.so.1.10+0xb3fd6)
#4 jl_repl_entrypoint /home/mc2473/juliasanitizer/julia/src/jlapi.c:725:5 (libjulia-internal-debug.so.1.10+0x15e082)
#5 jl_load_repl /home/mc2473/juliasanitizer/julia/cli/loader_lib.c:568:12 (libjulia-debug.so.1.10+0x148b3)
#6 main /home/mc2473/juliasanitizer/julia/cli/loader_exe.c:58:15 (julia-debug+0xecfed)
SUMMARY: ThreadSanitizer: data race /home/mc2473/juliasanitizer/julia/src/gc-debug.c:481:9 in gc_debug_alloc_check
==================
==================
WARNING: ThreadSanitizer: data race (pid=756256)
Write of size 8 at 0x7ff6d34cc790 by thread T3:
#0 gc_debug_alloc_check /home/mc2473/juliasanitizer/julia/src/gc-debug.c:481:9 (libjulia-internal-debug.so.1.10+0x146d64)
#1 jl_gc_debug_check_other /home/mc2473/juliasanitizer/julia/src/gc-debug.c:494:12 (libjulia-internal-debug.so.1.10+0x146df0)
#2 maybe_collect /home/mc2473/juliasanitizer/julia/src/gc.c:936:62 (libjulia-internal-debug.so.1.10+0x1389c4)
#3 jl_gc_pool_alloc_inner /home/mc2473/juliasanitizer/julia/src/gc.c:1293:5 (libjulia-internal-debug.so.1.10+0x12e1f2)
#4 jl_gc_pool_alloc_noinline /home/mc2473/juliasanitizer/julia/src/gc.c:1350:12 (libjulia-internal-debug.so.1.10+0x12e68d)
#5 jl_gc_alloc_ /home/mc2473/juliasanitizer/julia/src/./julia_internal.h:477:13 (libjulia-internal-debug.so.1.10+0x12cfd6)
#6 jl_gc_alloc /home/mc2473/juliasanitizer/julia/src/gc.c:3570:12 (libjulia-internal-debug.so.1.10+0x137f55)
#7 _new_array_ /home/mc2473/juliasanitizer/julia/src/array.c:134:26 (libjulia-internal-debug.so.1.10+0xbb50b)
#8 _new_array /home/mc2473/juliasanitizer/julia/src/array.c:198:12 (libjulia-internal-debug.so.1.10+0xbdff1)
#9 ijl_alloc_array_1d /home/mc2473/juliasanitizer/julia/src/array.c:436:12 (libjulia-internal-debug.so.1.10+0xbe053)
#10 Array boot.jl:477 (sys-debug.so+0xb20b46)
#11 IdDict iddict.jl:30 (sys-debug.so+0xb20b46)
#12 CachedMethodTable compiler/methodtable.jl:61 (sys-debug.so+0xb20b46)
#13 julia_YY.NativeInterpreterYY.287_19687 compiler/types.jl:362 (sys-debug.so+0xb20b46)
#14 NativeInterpreter compiler/types.jl:349 (sys-debug.so+0x9e3a39)
#15 julia_typeinf_ext_toplevel_24549 compiler/typeinfer.jl:1078 (sys-debug.so+0x9e3a39)
#16 jfptr_typeinf_ext_toplevel_24550 <null> (sys-debug.so+0x2d1928)
#17 _jl_invoke /home/mc2473/juliasanitizer/julia/src/gf.c:2875:35 (libjulia-internal-debug.so.1.10+0x693f5)
#18 ijl_apply_generic /home/mc2473/juliasanitizer/julia/src/gf.c:3076:12 (libjulia-internal-debug.so.1.10+0x69649)
#19 jl_apply /home/mc2473/juliasanitizer/julia/src/./julia.h:1982:12 (libjulia-internal-debug.so.1.10+0x561ec)
#20 jl_type_infer /home/mc2473/juliasanitizer/julia/src/gf.c:394:32 (libjulia-internal-debug.so.1.10+0x55e8e)
#21 jl_generate_fptr_impl /home/mc2473/juliasanitizer/julia/src/jitlayers.cpp:502:19 (libjulia-codegen-debug.so.1.10+0x18ea1f)
#22 jl_compile_method_internal /home/mc2473/juliasanitizer/julia/src/gf.c:2480:16 (libjulia-internal-debug.so.1.10+0x63611)
#23 _jl_invoke /home/mc2473/juliasanitizer/julia/src/gf.c:2886:16 (libjulia-internal-debug.so.1.10+0x694c0)
#24 ijl_apply_generic /home/mc2473/juliasanitizer/julia/src/gf.c:3076:12 (libjulia-internal-debug.so.1.10+0x69649)
#25 jl_apply /home/mc2473/juliasanitizer/julia/src/./julia.h:1982:12 (libjulia-internal-debug.so.1.10+0xb650c)
#26 jl_finish_task /home/mc2473/juliasanitizer/julia/src/task.c:320:13 (libjulia-internal-debug.so.1.10+0xb6442)
#27 jl_threadfun /home/mc2473/juliasanitizer/julia/src/partr.c:191:5 (libjulia-internal-debug.so.1.10+0x125822)
Previous write of size 8 at 0x7ff6d34cc790 by main thread:
#0 gc_debug_alloc_check /home/mc2473/juliasanitizer/julia/src/gc-debug.c:481:9 (libjulia-internal-debug.so.1.10+0x146d64)
#1 jl_gc_debug_check_other /home/mc2473/juliasanitizer/julia/src/gc-debug.c:494:12 (libjulia-internal-debug.so.1.10+0x146df0)
#2 maybe_collect /home/mc2473/juliasanitizer/julia/src/gc.c:936:62 (libjulia-internal-debug.so.1.10+0x1389c4)
#3 jl_gc_pool_alloc_inner /home/mc2473/juliasanitizer/julia/src/gc.c:1293:5 (libjulia-internal-debug.so.1.10+0x12e1f2)
#4 jl_gc_pool_alloc_noinline /home/mc2473/juliasanitizer/julia/src/gc.c:1350:12 (libjulia-internal-debug.so.1.10+0x12e68d)
#5 ijl_alloc_string /home/mc2473/juliasanitizer/julia/src/array.c:505:13 (libjulia-internal-debug.so.1.10+0xbe6f4)
#6 ijl_pchar_to_string /home/mc2473/juliasanitizer/julia/src/array.c:521:21 (libjulia-internal-debug.so.1.10+0xbe591)
#7 ijl_cstr_to_string /home/mc2473/juliasanitizer/julia/src/array.c:529:12 (libjulia-internal-debug.so.1.10+0xbe999)
#8 ijl_get_julia_bindir /home/mc2473/juliasanitizer/julia/src/jlapi.c:353:12 (libjulia-internal-debug.so.1.10+0x15d2f0)
#9 julia___init_build_35133 sysinfo.jl:126 (sys-debug.so+0xc3a787)
#10 julia___init___35106 sysinfo.jl:120 (sys-debug.so+0x220da8)
#11 jfptr___init___35107 <null> (sys-debug.so+0xbc1a6b)
#12 _jl_invoke /home/mc2473/juliasanitizer/julia/src/gf.c:2875:35 (libjulia-internal-debug.so.1.10+0x693f5)
#13 ijl_apply_generic /home/mc2473/juliasanitizer/julia/src/gf.c:3076:12 (libjulia-internal-debug.so.1.10+0x69649)
#14 jl_apply /home/mc2473/juliasanitizer/julia/src/./julia.h:1982:12 (libjulia-internal-debug.so.1.10+0xebf1c)
#15 jl_module_run_initializer /home/mc2473/juliasanitizer/julia/src/toplevel.c:76:9 (libjulia-internal-debug.so.1.10+0xebd6d)
#16 _finish_julia_init /home/mc2473/juliasanitizer/julia/src/init.c:901:13 (libjulia-internal-debug.so.1.10+0xb475c)
#17 julia_init /home/mc2473/juliasanitizer/julia/src/init.c:844:5 (libjulia-internal-debug.so.1.10+0xb3fd6)
#18 jl_repl_entrypoint /home/mc2473/juliasanitizer/julia/src/jlapi.c:725:5 (libjulia-internal-debug.so.1.10+0x15e082)
#19 jl_load_repl /home/mc2473/juliasanitizer/julia/cli/loader_lib.c:568:12 (libjulia-debug.so.1.10+0x148b3)
#20 main /home/mc2473/juliasanitizer/julia/cli/loader_exe.c:58:15 (julia-debug+0xecfed)
Location is global 'jl_gc_debug_env' of size 152 at 0x7ff6d34cc758 (libjulia-internal-debug.so.1.10+0x653790)
Thread T3 (tid=756262, running) created by main thread at:
#0 pthread_create /workspace/srcdir/llvm-project/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp:1022 (julia-debug+0x694b2)
#1 uv_thread_create_ex /workspace/srcdir/libuv/src/unix/thread.c:270 (libjulia-internal-debug.so.1.10+0x265de6)
#2 _finish_julia_init /home/mc2473/juliasanitizer/julia/src/init.c:890:5 (libjulia-internal-debug.so.1.10+0xb45c5)
#3 julia_init /home/mc2473/juliasanitizer/julia/src/init.c:844:5 (libjulia-internal-debug.so.1.10+0xb3fd6)
#4 jl_repl_entrypoint /home/mc2473/juliasanitizer/julia/src/jlapi.c:725:5 (libjulia-internal-debug.so.1.10+0x15e082)
#5 jl_load_repl /home/mc2473/juliasanitizer/julia/cli/loader_lib.c:568:12 (libjulia-debug.so.1.10+0x148b3)
#6 main /home/mc2473/juliasanitizer/julia/cli/loader_exe.c:58:15 (julia-debug+0xecfed)
SUMMARY: ThreadSanitizer: data race /home/mc2473/juliasanitizer/julia/src/gc-debug.c:481:9 in gc_debug_alloc_check
==================
==================
WARNING: ThreadSanitizer: data race (pid=756256)
Write of size 8 at 0x7ff6d34cc790 by main thread:
#0 gc_debug_alloc_check /home/mc2473/juliasanitizer/julia/src/gc-debug.c:481:9 (libjulia-internal-debug.so.1.10+0x146d64)
#1 jl_gc_debug_check_other /home/mc2473/juliasanitizer/julia/src/gc-debug.c:494:12 (libjulia-internal-debug.so.1.10+0x146df0)
#2 maybe_collect /home/mc2473/juliasanitizer/julia/src/gc.c:936:62 (libjulia-internal-debug.so.1.10+0x1389c4)
#3 jl_gc_pool_alloc_inner /home/mc2473/juliasanitizer/julia/src/gc.c:1293:5 (libjulia-internal-debug.so.1.10+0x12e1f2)
#4 jl_gc_pool_alloc_noinline /home/mc2473/juliasanitizer/julia/src/gc.c:1350:12 (libjulia-internal-debug.so.1.10+0x12e68d)
#5 ijl_alloc_string /home/mc2473/juliasanitizer/julia/src/array.c:505:13 (libjulia-internal-debug.so.1.10+0xbe6f4)
#6 _string_n strings/string.jl:90 (sys-debug.so+0x7df82d)
#7 StringVector iobuffer.jl:32 (sys-debug.so+0x7df82d)
#8 julia_YY.IOBufferYY.469_43624 iobuffer.jl:115 (sys-debug.so+0x7df82d)
#9 GenericIOBuffer iobuffer.jl:106 (sys-debug.so+0xbc4e5e)
#10 japi1_print_to_string_44441 strings/io.jl:146 (sys-debug.so+0xbc4e5e)
#11 string strings/io.jl:189 (sys-debug.so+0xc3a877)
#12 julia___init_build_35133 sysinfo.jl:127 (sys-debug.so+0xc3a877)
#13 julia___init___35106 sysinfo.jl:120 (sys-debug.so+0x220da8)
#14 jfptr___init___35107 <null> (sys-debug.so+0xbc1a6b)
#15 _jl_invoke /home/mc2473/juliasanitizer/julia/src/gf.c:2875:35 (libjulia-internal-debug.so.1.10+0x693f5)
#16 ijl_apply_generic /home/mc2473/juliasanitizer/julia/src/gf.c:3076:12 (libjulia-internal-debug.so.1.10+0x69649)
#17 jl_apply /home/mc2473/juliasanitizer/julia/src/./julia.h:1982:12 (libjulia-internal-debug.so.1.10+0xebf1c)
#18 jl_module_run_initializer /home/mc2473/juliasanitizer/julia/src/toplevel.c:76:9 (libjulia-internal-debug.so.1.10+0xebd6d)
#19 _finish_julia_init /home/mc2473/juliasanitizer/julia/src/init.c:901:13 (libjulia-internal-debug.so.1.10+0xb475c)
#20 julia_init /home/mc2473/juliasanitizer/julia/src/init.c:844:5 (libjulia-internal-debug.so.1.10+0xb3fd6)
#21 jl_repl_entrypoint /home/mc2473/juliasanitizer/julia/src/jlapi.c:725:5 (libjulia-internal-debug.so.1.10+0x15e082)
#22 jl_load_repl /home/mc2473/juliasanitizer/julia/cli/loader_lib.c:568:12 (libjulia-debug.so.1.10+0x148b3)
#23 main /home/mc2473/juliasanitizer/julia/cli/loader_exe.c:58:15 (julia-debug+0xecfed)
Previous write of size 8 at 0x7ff6d34cc790 by thread T3:
#0 gc_debug_alloc_check /home/mc2473/juliasanitizer/julia/src/gc-debug.c:481:9 (libjulia-internal-debug.so.1.10+0x146d64)
#1 jl_gc_debug_check_other /home/mc2473/juliasanitizer/julia/src/gc-debug.c:494:12 (libjulia-internal-debug.so.1.10+0x146df0)
#2 maybe_collect /home/mc2473/juliasanitizer/julia/src/gc.c:936:62 (libjulia-internal-debug.so.1.10+0x1389c4)
#3 jl_gc_pool_alloc_inner /home/mc2473/juliasanitizer/julia/src/gc.c:1293:5 (libjulia-internal-debug.so.1.10+0x12e1f2)
#4 ijl_gc_pool_alloc /home/mc2473/juliasanitizer/julia/src/gc.c:1341:23 (libjulia-internal-debug.so.1.10+0x12e10d)
#5 IdDict iddict.jl:30 (sys-debug.so+0xb20b8d)
#6 CachedMethodTable compiler/methodtable.jl:61 (sys-debug.so+0xb20b8d)
#7 julia_YY.NativeInterpreterYY.287_19687 compiler/types.jl:362 (sys-debug.so+0xb20b8d)
#8 NativeInterpreter compiler/types.jl:349 (sys-debug.so+0x9e3a39)
#9 julia_typeinf_ext_toplevel_24549 compiler/typeinfer.jl:1078 (sys-debug.so+0x9e3a39)
#10 jfptr_typeinf_ext_toplevel_24550 <null> (sys-debug.so+0x2d1928)
#11 _jl_invoke /home/mc2473/juliasanitizer/julia/src/gf.c:2875:35 (libjulia-internal-debug.so.1.10+0x693f5)
#12 ijl_apply_generic /home/mc2473/juliasanitizer/julia/src/gf.c:3076:12 (libjulia-internal-debug.so.1.10+0x69649)
#13 jl_apply /home/mc2473/juliasanitizer/julia/src/./julia.h:1982:12 (libjulia-internal-debug.so.1.10+0x561ec)
#14 jl_type_infer /home/mc2473/juliasanitizer/julia/src/gf.c:394:32 (libjulia-internal-debug.so.1.10+0x55e8e)
#15 jl_generate_fptr_impl /home/mc2473/juliasanitizer/julia/src/jitlayers.cpp:502:19 (libjulia-codegen-debug.so.1.10+0x18ea1f)
#16 jl_compile_method_internal /home/mc2473/juliasanitizer/julia/src/gf.c:2480:16 (libjulia-internal-debug.so.1.10+0x63611)
#17 _jl_invoke /home/mc2473/juliasanitizer/julia/src/gf.c:2886:16 (libjulia-internal-debug.so.1.10+0x694c0)
#18 ijl_apply_generic /home/mc2473/juliasanitizer/julia/src/gf.c:3076:12 (libjulia-internal-debug.so.1.10+0x69649)
#19 jl_apply /home/mc2473/juliasanitizer/julia/src/./julia.h:1982:12 (libjulia-internal-debug.so.1.10+0xb650c)
#20 jl_finish_task /home/mc2473/juliasanitizer/julia/src/task.c:320:13 (libjulia-internal-debug.so.1.10+0xb6442)
#21 jl_threadfun /home/mc2473/juliasanitizer/julia/src/partr.c:191:5 (libjulia-internal-debug.so.1.10+0x125822)
Location is global 'jl_gc_debug_env' of size 152 at 0x7ff6d34cc758 (libjulia-internal-debug.so.1.10+0x653790)
Thread T3 (tid=756262, running) created by main thread at:
#0 pthread_create /workspace/srcdir/llvm-project/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp:1022 (julia-debug+0x694b2)
#1 uv_thread_create_ex /workspace/srcdir/libuv/src/unix/thread.c:270 (libjulia-internal-debug.so.1.10+0x265de6)
#2 _finish_julia_init /home/mc2473/juliasanitizer/julia/src/init.c:890:5 (libjulia-internal-debug.so.1.10+0xb45c5)
#3 julia_init /home/mc2473/juliasanitizer/julia/src/init.c:844:5 (libjulia-internal-debug.so.1.10+0xb3fd6)
#4 jl_repl_entrypoint /home/mc2473/juliasanitizer/julia/src/jlapi.c:725:5 (libjulia-internal-debug.so.1.10+0x15e082)
#5 jl_load_repl /home/mc2473/juliasanitizer/julia/cli/loader_lib.c:568:12 (libjulia-debug.so.1.10+0x148b3)
#6 main /home/mc2473/juliasanitizer/julia/cli/loader_exe.c:58:15 (julia-debug+0xecfed)
SUMMARY: ThreadSanitizer: data race /home/mc2473/juliasanitizer/julia/src/gc-debug.c:481:9 in gc_debug_alloc_check
==================
==================
WARNING: ThreadSanitizer: data race (pid=756256)
Write of size 8 at 0x7ff6d34cc790 by main thread:
#0 gc_debug_alloc_check /home/mc2473/juliasanitizer/julia/src/gc-debug.c:481:9 (libjulia-internal-debug.so.1.10+0x146d64)
#1 jl_gc_debug_check_other /home/mc2473/juliasanitizer/julia/src/gc-debug.c:494:12 (libjulia-internal-debug.so.1.10+0x146df0)
#2 maybe_collect /home/mc2473/juliasanitizer/julia/src/gc.c:936:62 (libjulia-internal-debug.so.1.10+0x1389c4)
#3 jl_gc_pool_alloc_inner /home/mc2473/juliasanitizer/julia/src/gc.c:1293:5 (libjulia-internal-debug.so.1.10+0x12e1f2)
#4 jl_gc_pool_alloc_noinline /home/mc2473/juliasanitizer/julia/src/gc.c:1350:12 (libjulia-internal-debug.so.1.10+0x12e68d)
#5 jl_gc_alloc_ /home/mc2473/juliasanitizer/julia/src/./julia_internal.h:477:13 (libjulia-internal-debug.so.1.10+0x12cfd6)
#6 jl_gc_alloc /home/mc2473/juliasanitizer/julia/src/gc.c:3570:12 (libjulia-internal-debug.so.1.10+0x137f55)
#7 ijl_string_to_array /home/mc2473/juliasanitizer/julia/src/array.c:289:22 (libjulia-internal-debug.so.1.10+0xbc86a)
#8 unsafe_wrap strings/string.jl:100 (sys-debug.so+0x7df847)
#9 StringVector iobuffer.jl:32 (sys-debug.so+0x7df847)
#10 julia_YY.IOBufferYY.469_43624 iobuffer.jl:115 (sys-debug.so+0x7df847)
#11 GenericIOBuffer iobuffer.jl:106 (sys-debug.so+0xbc4e5e)
#12 japi1_print_to_string_44441 strings/io.jl:146 (sys-debug.so+0xbc4e5e)
#13 string strings/io.jl:189 (sys-debug.so+0xc3a877)
#14 julia___init_build_35133 sysinfo.jl:127 (sys-debug.so+0xc3a877)
#15 julia___init___35106 sysinfo.jl:120 (sys-debug.so+0x220da8)
#16 jfptr___init___35107 <null> (sys-debug.so+0xbc1a6b)
#17 _jl_invoke /home/mc2473/juliasanitizer/julia/src/gf.c:2875:35 (libjulia-internal-debug.so.1.10+0x693f5)
#18 ijl_apply_generic /home/mc2473/juliasanitizer/julia/src/gf.c:3076:12 (libjulia-internal-debug.so.1.10+0x69649)
#19 jl_apply /home/mc2473/juliasanitizer/julia/src/./julia.h:1982:12 (libjulia-internal-debug.so.1.10+0xebf1c)
#20 jl_module_run_initializer /home/mc2473/juliasanitizer/julia/src/toplevel.c:76:9 (libjulia-internal-debug.so.1.10+0xebd6d)
#21 _finish_julia_init /home/mc2473/juliasanitizer/julia/src/init.c:901:13 (libjulia-internal-debug.so.1.10+0xb475c)
#22 julia_init /home/mc2473/juliasanitizer/julia/src/init.c:844:5 (libjulia-internal-debug.so.1.10+0xb3fd6)
#23 jl_repl_entrypoint /home/mc2473/juliasanitizer/julia/src/jlapi.c:725:5 (libjulia-internal-debug.so.1.10+0x15e082)
#24 jl_load_repl /home/mc2473/juliasanitizer/julia/cli/loader_lib.c:568:12 (libjulia-debug.so.1.10+0x148b3)
#25 main /home/mc2473/juliasanitizer/julia/cli/loader_exe.c:58:15 (julia-debug+0xecfed)
Previous write of size 8 at 0x7ff6d34cc790 by thread T3:
#0 gc_debug_alloc_check /home/mc2473/juliasanitizer/julia/src/gc-debug.c:481:9 (libjulia-internal-debug.so.1.10+0x146d64)
#1 jl_gc_debug_check_other /home/mc2473/juliasanitizer/julia/src/gc-debug.c:494:12 (libjulia-internal-debug.so.1.10+0x146df0)
#2 maybe_collect /home/mc2473/juliasanitizer/julia/src/gc.c:936:62 (libjulia-internal-debug.so.1.10+0x1389c4)
#3 jl_gc_pool_alloc_inner /home/mc2473/juliasanitizer/julia/src/gc.c:1293:5 (libjulia-internal-debug.so.1.10+0x12e1f2)
#4 jl_gc_pool_alloc_noinline /home/mc2473/juliasanitizer/julia/src/gc.c:1350:12 (libjulia-internal-debug.so.1.10+0x12e68d)
#5 jl_gc_alloc_ /home/mc2473/juliasanitizer/julia/src/./julia_internal.h:477:13 (libjulia-internal-debug.so.1.10+0x12cfd6)
#6 jl_gc_alloc /home/mc2473/juliasanitizer/julia/src/gc.c:3570:12 (libjulia-internal-debug.so.1.10+0x137f55)
#7 _new_array_ /home/mc2473/juliasanitizer/julia/src/array.c:134:26 (libjulia-internal-debug.so.1.10+0xbb50b)
#8 _new_array /home/mc2473/juliasanitizer/julia/src/array.c:198:12 (libjulia-internal-debug.so.1.10+0xbdff1)
#9 ijl_alloc_array_1d /home/mc2473/juliasanitizer/julia/src/array.c:436:12 (libjulia-internal-debug.so.1.10+0xbe053)
#10 Array boot.jl:477 (sys-debug.so+0xb20c1e)
#11 Array boot.jl:496 (sys-debug.so+0xb20c1e)
#12 julia_YY.NativeInterpreterYY.287_19687 compiler/types.jl:364 (sys-debug.so+0xb20c1e)
#13 NativeInterpreter compiler/types.jl:349 (sys-debug.so+0x9e3a39)
#14 julia_typeinf_ext_toplevel_24549 compiler/typeinfer.jl:1078 (sys-debug.so+0x9e3a39)
#15 jfptr_typeinf_ext_toplevel_24550 <null> (sys-debug.so+0x2d1928)
#16 _jl_invoke /home/mc2473/juliasanitizer/julia/src/gf.c:2875:35 (libjulia-internal-debug.so.1.10+0x693f5)
#17 ijl_apply_generic /home/mc2473/juliasanitizer/julia/src/gf.c:3076:12 (libjulia-internal-debug.so.1.10+0x69649)
#18 jl_apply /home/mc2473/juliasanitizer/julia/src/./julia.h:1982:12 (libjulia-internal-debug.so.1.10+0x561ec)
#19 jl_type_infer /home/mc2473/juliasanitizer/julia/src/gf.c:394:32 (libjulia-internal-debug.so.1.10+0x55e8e)
#20 jl_generate_fptr_impl /home/mc2473/juliasanitizer/julia/src/jitlayers.cpp:502:19 (libjulia-codegen-debug.so.1.10+0x18ea1f)
#21 jl_compile_method_internal /home/mc2473/juliasanitizer/julia/src/gf.c:2480:16 (libjulia-internal-debug.so.1.10+0x63611)
#22 _jl_invoke /home/mc2473/juliasanitizer/julia/src/gf.c:2886:16 (libjulia-internal-debug.so.1.10+0x694c0)
#23 ijl_apply_generic /home/mc2473/juliasanitizer/julia/src/gf.c:3076:12 (libjulia-internal-debug.so.1.10+0x69649)
#24 jl_apply /home/mc2473/juliasanitizer/julia/src/./julia.h:1982:12 (libjulia-internal-debug.so.1.10+0xb650c)
#25 jl_finish_task /home/mc2473/juliasanitizer/julia/src/task.c:320:13 (libjulia-internal-debug.so.1.10+0xb6442)
#26 jl_threadfun /home/mc2473/juliasanitizer/julia/src/partr.c:191:5 (libjulia-internal-debug.so.1.10+0x125822)
Location is global 'jl_gc_debug_env' of size 152 at 0x7ff6d34cc758 (libjulia-internal-debug.so.1.10+0x653790)
Thread T3 (tid=756262, running) created by main thread at:
#0 pthread_create /workspace/srcdir/llvm-project/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp:1022 (julia-debug+0x694b2)
#1 uv_thread_create_ex /workspace/srcdir/libuv/src/unix/thread.c:270 (libjulia-internal-debug.so.1.10+0x265de6)
#2 _finish_julia_init /home/mc2473/juliasanitizer/julia/src/init.c:890:5 (libjulia-internal-debug.so.1.10+0xb45c5)
#3 julia_init /home/mc2473/juliasanitizer/julia/src/init.c:844:5 (libjulia-internal-debug.so.1.10+0xb3fd6)
#4 jl_repl_entrypoint /home/mc2473/juliasanitizer/julia/src/jlapi.c:725:5 (libjulia-internal-debug.so.1.10+0x15e082)
#5 jl_load_repl /home/mc2473/juliasanitizer/julia/cli/loader_lib.c:568:12 (libjulia-debug.so.1.10+0x148b3)
#6 main /home/mc2473/juliasanitizer/julia/cli/loader_exe.c:58:15 (julia-debug+0xecfed)If there aren't real, do you have any tips for hiding them so I can debug my Julia code?
@vchuravy @yuyichao looks like you saw the same issue on #27173. Do you have tips for hiding these ones?
(Or are these data races in the GC the actual reason for my segfaults (JuliaPy/PyCall.jl#1072)...?)