New submission from Paul Price <pr...@astro.princeton.edu>:
I am running Python 2.7.1 under Valgrind 3.6.1 on a x86_64 GNU/Linux box.
Valgrind is flagging errors that are not covered by the standard suppressions
file (Misc/valgrind-python.supp; after uncommenting the part I'm supposed to),
e.g.:
==5804== Use of uninitialised value of size 8
==5804== at 0x4EBA956: PyObject_Free (obmalloc.c:958)
==5804== by 0x4E85D65: code_dealloc (codeobject.c:317)
==5804== by 0x4ECE23C: tupledealloc (tupleobject.c:220)
==5804== by 0x4E85E42: code_dealloc (codeobject.c:308)
==5804== by 0x4F3315D: load_source_module (import.c:1022)
==5804== by 0x4F33F7E: import_submodule (import.c:2596)
==5804== by 0x4F3420E: load_next (import.c:2416)
==5804== by 0x4F3484F: import_module_level (import.c:2137)
==5804== by 0x4F34DA3: PyImport_ImportModuleLevel (import.c:2189)
==5804== by 0x4F16ABE: builtin___import__ (bltinmodule.c:49)
==5804== by 0x4E6DA42: PyObject_Call (abstract.c:2529)
==5804== by 0x4F16F82: PyEval_CallObjectWithKeywords (ceval.c:3881)
==5804== Use of uninitialised value of size 8
==5804== at 0x4EBA956: PyObject_Free (obmalloc.c:958)
==5804== by 0x4E85D65: code_dealloc (codeobject.c:317)
==5804== by 0x4F3315D: load_source_module (import.c:1022)
==5804== by 0x4F33F7E: import_submodule (import.c:2596)
==5804== by 0x4F3420E: load_next (import.c:2416)
==5804== by 0x4F3484F: import_module_level (import.c:2137)
==5804== by 0x4F34DA3: PyImport_ImportModuleLevel (import.c:2189)
==5804== by 0x4F16ABE: builtin___import__ (bltinmodule.c:49)
==5804== by 0x4E6DA42: PyObject_Call (abstract.c:2529)
==5804== by 0x4F16F82: PyEval_CallObjectWithKeywords (ceval.c:3881)
==5804== by 0x4F1ACD3: PyEval_EvalFrameEx (ceval.c:2332)
==5804== by 0x4F1F347: PyEval_EvalCodeEx (ceval.c:3252)
etc.
Perhaps the suppressions file covers only 32-bit machines, because if I add:
{
ADDRESS_IN_RANGE/Use of uninitialised value of size 8
Memcheck:Addr8
fun:PyObject_Free
}
{
ADDRESS_IN_RANGE/Use of uninitialised value of size 8
Memcheck:Value8
fun:PyObject_Free
}
{
ADDRESS_IN_RANGE/Use of uninitialised value of size 8
Memcheck:Addr8
fun:PyObject_Realloc
}
{
ADDRESS_IN_RANGE/Use of uninitialised value of size 8
Memcheck:Value8
fun:PyObject_Realloc
}
(i.e., "Value8" instead of "Value4") then all is clear.
----------
components: None
messages: 140895
nosy: Paul.Price
priority: normal
severity: normal
status: open
title: Valgrind suppressions
versions: Python 2.7
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue12612>
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