MForster added a comment.
This fails under MSAN:
==3096==WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x7f0e7899ce18
(/build/work/73ffa3b6f1cbc2218b7b71e21a3dd1e2e53b/google3/runfiles/google3/third_party/py/lldb/dotest_wrapper.par/@0x3a0b9000+0x2e3e18)
(BuildId: 4c3940d9ff00226e685dcfb93f4b4753)
#1 0x7f0e7898fcc8
(/build/work/73ffa3b6f1cbc2218b7b71e21a3dd1e2e53b/google3/runfiles/google3/third_party/py/lldb/dotest_wrapper.par/@0x3a0b9000+0x2d6cc8)
(BuildId: 4c3940d9ff00226e685dcfb93f4b4753)
#2 0x7f0e78973001
(/build/work/73ffa3b6f1cbc2218b7b71e21a3dd1e2e53b/google3/runfiles/google3/third_party/py/lldb/dotest_wrapper.par/@0x3a0b9000+0x2ba001)
(BuildId: 4c3940d9ff00226e685dcfb93f4b4753)
#3 0x7f0e78cd1f10
(/build/work/73ffa3b6f1cbc2218b7b71e21a3dd1e2e53b/google3/runfiles/google3/third_party/py/lldb/dotest_wrapper.par/@0x3a0b9000+0x618f10)
(BuildId: 4c3940d9ff00226e685dcfb93f4b4753)
#4 0x558eaf3ecc70 in cfunction_call_varargs
third_party/python_runtime/v3_7/Objects/call.c:770:18
#5 0x558eaf3ecc70 in PyCFunction_Call
third_party/python_runtime/v3_7/Objects/call.c:786:16
#6 0x558eaf685ff8 in do_call_core
third_party/python_runtime/v3_7/Python/ceval.c:4641:9
#7 0x558eaf685ff8 in _PyEval_EvalFrameDefault
third_party/python_runtime/v3_7/Python/ceval.c:3191:22
#8 0x558eaf6a0691 in PyEval_EvalFrameEx
third_party/python_runtime/v3_7/Python/ceval.c:547:12
#9 0x558eaf6a0691 in _PyEval_EvalCodeWithName
third_party/python_runtime/v3_7/Python/ceval.c:3930:14
#10 0x558eaf3ebaa3 in _PyFunction_FastCallKeywords
third_party/python_runtime/v3_7/Objects/call.c:433:12
#11 0x558eaf69db2d in call_function
third_party/python_runtime/v3_7/Python/ceval.c:4616:17
#12 0x558eaf685844 in _PyEval_EvalFrameDefault
third_party/python_runtime/v3_7/Python/ceval.c:3093:23
#13 0x558eaf67d594 in PyEval_EvalFrameEx
third_party/python_runtime/v3_7/Python/ceval.c:547:12
#14 0x558eaf3ed230 in function_code_fastcall
third_party/python_runtime/v3_7/Objects/call.c:283:14
#15 0x558eaf3ea160 in _PyFunction_FastCallDict
third_party/python_runtime/v3_7/Objects/call.c
#16 0x558eaf3e99a4 in _PyObject_FastCallDict
third_party/python_runtime/v3_7/Objects/call.c:98:16
#17 0x558eaf3ef739 in _PyObject_Call_Prepend
third_party/python_runtime/v3_7/Objects/call.c:906:14
#18 0x558eaf3f462b in method_call
third_party/python_runtime/v3_7/Objects/classobject.c:309:12
#19 0x558eaf3ec51d in PyObject_Call
third_party/python_runtime/v3_7/Objects/call.c:245:18
#20 0x558eaf685d63 in do_call_core
third_party/python_runtime/v3_7/Python/ceval.c:4645:16
#21 0x558eaf685d63 in _PyEval_EvalFrameDefault
third_party/python_runtime/v3_7/Python/ceval.c:3191:22
#22 0x558eaf67d594 in PyEval_EvalFrameEx
third_party/python_runtime/v3_7/Python/ceval.c:547:12
#23 0x558eaf3ed230 in function_code_fastcall
third_party/python_runtime/v3_7/Objects/call.c:283:14
#24 0x558eaf3ebb23 in _PyFunction_FastCallKeywords
third_party/python_runtime/v3_7/Objects/call.c
#25 0x558eaf69db2d in call_function
third_party/python_runtime/v3_7/Python/ceval.c:4616:17
#26 0x558eaf685808 in _PyEval_EvalFrameDefault
third_party/python_runtime/v3_7/Python/ceval.c:3110:23
#27 0x558eaf67d594 in PyEval_EvalFrameEx
third_party/python_runtime/v3_7/Python/ceval.c:547:12
#28 0x558eaf3ed230 in function_code_fastcall
third_party/python_runtime/v3_7/Objects/call.c:283:14
#29 0x558eaf3ebb23 in _PyFunction_FastCallKeywords
third_party/python_runtime/v3_7/Objects/call.c
#30 0x558eaf69db2d in call_function
third_party/python_runtime/v3_7/Python/ceval.c:4616:17
#31 0x558eaf685808 in _PyEval_EvalFrameDefault
third_party/python_runtime/v3_7/Python/ceval.c:3110:23
#32 0x558eaf67d594 in PyEval_EvalFrameEx
third_party/python_runtime/v3_7/Python/ceval.c:547:12
#33 0x558eaf3ed230 in function_code_fastcall
third_party/python_runtime/v3_7/Objects/call.c:283:14
#34 0x558eaf3ea160 in _PyFunction_FastCallDict
third_party/python_runtime/v3_7/Objects/call.c
#35 0x558eaf3e99a4 in _PyObject_FastCallDict
third_party/python_runtime/v3_7/Objects/call.c:98:16
#36 0x558eaf3ef739 in _PyObject_Call_Prepend
third_party/python_runtime/v3_7/Objects/call.c:906:14
#37 0x558eaf3f462b in method_call
third_party/python_runtime/v3_7/Objects/classobject.c:309:12
#38 0x558eaf3ec51d in PyObject_Call
third_party/python_runtime/v3_7/Objects/call.c:245:18
#39 0x558eaecfdc9a in t_bootstrap
third_party/python_runtime/v3_7/Modules/_threadmodule.c:994:11
#40 0x558eaf77ac94 in pythread_wrapper
third_party/python_runtime/v3_7/Python/thread_pthread.h:174:5
#41 0x7f0e7bf0eb54 in start_thread
(/usr/grte/v5/lib64/libpthread.so.0+0xbb54) (BuildId:
64752de50ebd1a108f4b3f8d0d7e1a13)
#42 0x7f0e7be43f7e in clone (/usr/grte/v5/lib64/libc.so.6+0x13cf7e)
(BuildId: 7cfed7708e5ab7fcb286b373de21ee76)
I'll revert.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D120284/new/
https://reviews.llvm.org/D120284
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