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user_id=1437974

For me, the output of 'valgrind --version' is
valgrind-3.2.0-Debian.

I get warnings from some tests when I run the test suite
under valgrind.  When I ran the tests, I uncommented the
first block of ###-commented suppressions in
valgrind-python.supp and ran:
    valgrind --tool=memcheck
--suppressions=Misc/valgrind-python.supp --quiet ./python -E
-tt ./Lib/test/regrtest.py -u bsddb,network

(Note that I can reproduce the warning I'm seeing the
valgrind-python.supp suppressions file.)

The test suite warnings I get are:
test_asynchat
==2425== Thread 2:
==2425== Conditional jump or move depends on uninitialised
value(s)
==2425==    at 0x415F09C: __pthread_manager (manager.c:128)
==2425==    by 0x4291309: clone (clone.S:119)
==2425==
==2425== Syscall param clone(child_tidptr) contains
uninitialised byte(s)
==2425==    at 0x42912FC: clone (clone.S:100)
==2425==    by 0x4291309: clone (clone.S:119)

test_capi
==2420==
==2420== Thread 1:
==2420== Syscall param write(buf) points to uninitialised
byte(s)
==2420==    at 0x415E4AF: pthread_detach (join.c:216)
==2420==    by 0x40F6BCA: PyThread_start_new_thread
(thread_pthread.h:197)
==2420==    by 0x4E82952: test_thread_state
(_testcapimodule.c:663)
==2420==    by 0x407BF6C: PyCFunction_Call (methodobject.c:108)
==2420==    by 0x40CBF63: PyEval_EvalFrameEx (ceval.c:3566)
==2420==    by 0x40CC8E5: PyEval_EvalCodeEx (ceval.c:2833)
==2420==    by 0x40CABC8: PyEval_EvalFrameEx (ceval.c:3662)
==2420==    by 0x40CB1C9: PyEval_EvalFrameEx (ceval.c:3652)
==2420==    by 0x40CC8E5: PyEval_EvalCodeEx (ceval.c:2833)
==2420==    by 0x40CABC8: PyEval_EvalFrameEx (ceval.c:3662)
==2420==    by 0x40CC8E5: PyEval_EvalCodeEx (ceval.c:2833)
==2420==    by 0x40CABC8: PyEval_EvalFrameEx (ceval.c:3662)
==2420==  Address 0xAEB75F74 is on thread 1's stack

test_codecs
==2420==
==2420== Conditional jump or move depends on uninitialised
value(s)
==2420==    at 0x40A445F: _PyUnicode_DecodeUnicodeInternal
(unicodeobject.c:2395)
==2420==    by 0x410D796: unicode_internal_decode
(_codecsmodule.c:225)
==2420==    by 0x407BF6C: PyCFunction_Call (methodobject.c:108)
==2420==    by 0x4045066: PyObject_Call (abstract.c:1860)
==2420==    by 0x40C4DCA: PyEval_CallObjectWithKeywords
(ceval.c:3435)
==2420==    by 0x40DAEAE: PyCodec_Decode (codecs.c:377)
==2420==    by 0x4084FD3: PyString_AsDecodedObject
(stringobject.c:391)
==2420==    by 0x4086A92: string_decode (stringobject.c:3260)
==2420==    by 0x407BF6C: PyCFunction_Call (methodobject.c:108)
==2420==    by 0x4045066: PyObject_Call (abstract.c:1860)
==2420==    by 0x40C98D5: PyEval_EvalFrameEx (ceval.c:3846)
==2420==    by 0x40CC8E5: PyEval_EvalCodeEx (ceval.c:2833)
==2420==
==2420== Conditional jump or move depends on uninitialised
value(s)
==2420==    at 0x40A0F30: unicode_resize (unicodeobject.c:188)
==2420==    by 0x40A105B: _PyUnicode_New (unicodeobject.c:250)
==2420==    by 0x40A43F7: _PyUnicode_DecodeUnicodeInternal
(unicodeobject.c:2383)
==2420==    by 0x410D796: unicode_internal_decode
(_codecsmodule.c:225)
==2420==    by 0x407BF6C: PyCFunction_Call (methodobject.c:108)
==2420==    by 0x4045066: PyObject_Call (abstract.c:1860)
==2420==    by 0x40C4DCA: PyEval_CallObjectWithKeywords
(ceval.c:3435)
==2420==    by 0x40DAEAE: PyCodec_Decode (codecs.c:377)
==2420==    by 0x4084FD3: PyString_AsDecodedObject
(stringobject.c:391)
==2420==    by 0x4086A92: string_decode (stringobject.c:3260)
==2420==    by 0x407BF6C: PyCFunction_Call (methodobject.c:108)
==2420==    by 0x4045066: PyObject_Call (abstract.c:1860)
==2420==
==2420== Use of uninitialised value of size 4
==2420==    at 0x40A0F32: unicode_resize (unicodeobject.c:188)
==2420==    by 0x40A105B: _PyUnicode_New (unicodeobject.c:250)
==2420==    by 0x40A43F7: _PyUnicode_DecodeUnicodeInternal
(unicodeobject.c:2383)
==2420==    by 0x410D796: unicode_internal_decode
(_codecsmodule.c:225)
==2420==    by 0x407BF6C: PyCFunction_Call (methodobject.c:108)
==2420==    by 0x4045066: PyObject_Call (abstract.c:1860)
==2420==    by 0x40C4DCA: PyEval_CallObjectWithKeywords
(ceval.c:3435)
==2420==    by 0x40DAEAE: PyCodec_Decode (codecs.c:377)
==2420==    by 0x4084FD3: PyString_AsDecodedObject
(stringobject.c:391)
==2420==    by 0x4086A92: string_decode (stringobject.c:3260)
==2420==    by 0x407BF6C: PyCFunction_Call (methodobject.c:108)
==2420==    by 0x4045066: PyObject_Call (abstract.c:1860)
test_codeop
==2420==
==2420== Conditional jump or move depends on uninitialised
value(s)
==2420==    at 0x403EAF3: parsetok (parsetok.c:189)
==2420==    by 0x40ED673: PyParser_ASTFromString
(pythonrun.c:1354)
==2420==    by 0x40ED793: Py_CompileStringFlags
(pythonrun.c:1311)
==2420==    by 0x40C043A: builtin_compile (bltinmodule.c:464)
==2420==    by 0x407BF6C: PyCFunction_Call (methodobject.c:108)
==2420==    by 0x40CBF63: PyEval_EvalFrameEx (ceval.c:3566)
==2420==    by 0x40CB1C9: PyEval_EvalFrameEx (ceval.c:3652)
==2420==    by 0x40CB1C9: PyEval_EvalFrameEx (ceval.c:3652)
==2420==    by 0x40CC8E5: PyEval_EvalCodeEx (ceval.c:2833)
==2420==    by 0x40CABC8: PyEval_EvalFrameEx (ceval.c:3662)
==2420==    by 0x40CC8E5: PyEval_EvalCodeEx (ceval.c:2833)
==2420==    by 0x40CABC8: PyEval_EvalFrameEx (ceval.c:3662)

test_ctypes
==2420==
==2420== Conditional jump or move depends on uninitialised
value(s)
==2420==    at 0x40692E5: PyInt_FromLong (intobject.c:87)
==2420==    by 0x6B12F18: l_get (cfield.c:810)
==2420==    by 0x6B0FC8A: _CallProc (callproc.c:740)
==2420==    by 0x6B0B48D: CFuncPtr_call (_ctypes.c:3357)
==2420==    by 0x4045066: PyObject_Call (abstract.c:1860)
==2420==    by 0x40C98D5: PyEval_EvalFrameEx (ceval.c:3846)
==2420==    by 0x40CC8E5: PyEval_EvalCodeEx (ceval.c:2833)
==2420==    by 0x40CABC8: PyEval_EvalFrameEx (ceval.c:3662)
==2420==    by 0x40CB1C9: PyEval_EvalFrameEx (ceval.c:3652)
==2420==    by 0x40CC8E5: PyEval_EvalCodeEx (ceval.c:2833)
==2420==    by 0x4067C59: function_call (funcobject.c:517)
==2420==    by 0x4045066: PyObject_Call (abstract.c:1860)
==2420==
==2420== Use of uninitialised value of size 4
==2420==    at 0x6B15703: ffi_call (ffi.c:237)
==2420==    by 0x6B0FADE: _CallProc (callproc.c:665)
==2420==    by 0x6B0B48D: CFuncPtr_call (_ctypes.c:3357)
==2420==    by 0x4045066: PyObject_Call (abstract.c:1860)
==2420==    by 0x40C6CB8: PyEval_EvalFrameEx (ceval.c:3777)
==2420==    by 0x40CB1C9: PyEval_EvalFrameEx (ceval.c:3652)
==2420==    by 0x40CC8E5: PyEval_EvalCodeEx (ceval.c:2833)
==2420==    by 0x4067C59: function_call (funcobject.c:517)
==2420==    by 0x4045066: PyObject_Call (abstract.c:1860)
==2420==    by 0x40C98D5: PyEval_EvalFrameEx (ceval.c:3846)
==2420==    by 0x40CC8E5: PyEval_EvalCodeEx (ceval.c:2833)
==2420==    by 0x4067C59: function_call (funcobject.c:517)
==2420==
==2420== Use of uninitialised value of size 4
==2420==    at 0x6B15706: ffi_call (ffi.c:237)
==2420==    by 0x6B0FADE: _CallProc (callproc.c:665)
==2420==    by 0x6B0B48D: CFuncPtr_call (_ctypes.c:3357)
==2420==    by 0x4045066: PyObject_Call (abstract.c:1860)
==2420==    by 0x40C6CB8: PyEval_EvalFrameEx (ceval.c:3777)
==2420==    by 0x40CB1C9: PyEval_EvalFrameEx (ceval.c:3652)
==2420==    by 0x40CC8E5: PyEval_EvalCodeEx (ceval.c:2833)
==2420==    by 0x4067C59: function_call (funcobject.c:517)
==2420==    by 0x4045066: PyObject_Call (abstract.c:1860)
==2420==    by 0x40C98D5: PyEval_EvalFrameEx (ceval.c:3846)
==2420==    by 0x40CC8E5: PyEval_EvalCodeEx (ceval.c:2833)
==2420==    by 0x4067C59: function_call (funcobject.c:517)

test_gzip
==2420==
==2420== Conditional jump or move depends on uninitialised
value(s)
==2420==    at 0x52DC1CA: longest_match (in
/home/luke/dev/hfs/dsolib/libz.so.1.2.3)
==2420==    by 0x52DCEB0: deflate_slow (in
/home/luke/dev/hfs/dsolib/libz.so.1.2.3)
==2420==    by 0x52DD6BF: deflate (in
/home/luke/dev/hfs/dsolib/libz.so.1.2.3)
==2420==    by 0x52D4DE9: PyZlib_flush (zlibmodule.c:605)
==2420==    by 0x407BF6C: PyCFunction_Call (methodobject.c:108)
==2420==    by 0x40CBF63: PyEval_EvalFrameEx (ceval.c:3566)
==2420==    by 0x40CC8E5: PyEval_EvalCodeEx (ceval.c:2833)
==2420==    by 0x40CABC8: PyEval_EvalFrameEx (ceval.c:3662)
==2420==    by 0x40CB1C9: PyEval_EvalFrameEx (ceval.c:3652)
==2420==    by 0x40CB1C9: PyEval_EvalFrameEx (ceval.c:3652)
==2420==    by 0x40CC8E5: PyEval_EvalCodeEx (ceval.c:2833)
==2420==    by 0x4067C59: function_call (funcobject.c:517)
==2420==
==2420== Conditional jump or move depends on uninitialised
value(s)
==2420==    at 0x52DC153: longest_match (in
/home/luke/dev/hfs/dsolib/libz.so.1.2.3)
==2420==    by 0x52DCEB0: deflate_slow (in
/home/luke/dev/hfs/dsolib/libz.so.1.2.3)
==2420==    by 0x52DD6BF: deflate (in
/home/luke/dev/hfs/dsolib/libz.so.1.2.3)
==2420==    by 0x52D4DE9: PyZlib_flush (zlibmodule.c:605)
==2420==    by 0x407BF6C: PyCFunction_Call (methodobject.c:108)
==2420==    by 0x40CBF63: PyEval_EvalFrameEx (ceval.c:3566)
==2420==    by 0x40CC8E5: PyEval_EvalCodeEx (ceval.c:2833)
==2420==    by 0x40CABC8: PyEval_EvalFrameEx (ceval.c:3662)
==2420==    by 0x40CB1C9: PyEval_EvalFrameEx (ceval.c:3652)
==2420==    by 0x40CB1C9: PyEval_EvalFrameEx (ceval.c:3652)
==2420==    by 0x40CC8E5: PyEval_EvalCodeEx (ceval.c:2833)
==2420==    by 0x4067C59: function_call (funcobject.c:517)
==2420==
==2420== Conditional jump or move depends on uninitialised
value(s)
==2420==    at 0x52DC18E: longest_match (in
/home/luke/dev/hfs/dsolib/libz.so.1.2.3)
==2420==    by 0x52DCEB0: deflate_slow (in
/home/luke/dev/hfs/dsolib/libz.so.1.2.3)
==2420==    by 0x52DD6BF: deflate (in
/home/luke/dev/hfs/dsolib/libz.so.1.2.3)
==2420==    by 0x52D4DE9: PyZlib_flush (zlibmodule.c:605)
==2420==    by 0x407BF6C: PyCFunction_Call (methodobject.c:108)
==2420==    by 0x40CBF63: PyEval_EvalFrameEx (ceval.c:3566)
==2420==    by 0x40CB1C9: PyEval_EvalFrameEx (ceval.c:3652)
==2420==    by 0x40CB1C9: PyEval_EvalFrameEx (ceval.c:3652)
==2420==    by 0x40CC8E5: PyEval_EvalCodeEx (ceval.c:2833)
==2420==    by 0x4067C59: function_call (funcobject.c:517)
==2420==    by 0x4045066: PyObject_Call (abstract.c:1860)
==2420==    by 0x40C98D5: PyEval_EvalFrameEx (ceval.c:3846)