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✍️ Editing: valgrind-python.supp

            File: /opt/alt/python311/share/doc/alt-python311-devel/valgrind-python.supp

            Size: 8.62 KB | 
            Last Modified: 2026-03-03 07:52:57        

#
# This is a valgrind suppression file that should be used when using valgrind.
#
#  Here's an example of running valgrind:
#
#	cd python/dist/src
#	valgrind --tool=memcheck --suppressions=Misc/valgrind-python.supp \
#		./python -E ./Lib/test/regrtest.py -u gui,network
#
# You must edit Objects/obmalloc.c and uncomment Py_USING_MEMORY_DEBUGGER
# to use the preferred suppressions with address_in_range.
#
# If you do not want to recompile Python, you can uncomment
# suppressions for _PyObject_Free and _PyObject_Realloc.
#
# See Misc/README.valgrind for more information.

# all tool names: Addrcheck,Memcheck,cachegrind,helgrind,massif
{
   ADDRESS_IN_RANGE/Invalid read of size 4
   Memcheck:Addr4
   fun:address_in_range
}

{
   ADDRESS_IN_RANGE/Invalid read of size 4
   Memcheck:Value4
   fun:address_in_range
}

{
   ADDRESS_IN_RANGE/Invalid read of size 8 (x86_64 aka amd64)
   Memcheck:Value8
   fun:address_in_range
}

{
   ADDRESS_IN_RANGE/Conditional jump or move depends on uninitialised value
   Memcheck:Cond
   fun:address_in_range
}

#
# Leaks (including possible leaks)
#    Hmmm, I wonder if this masks some real leaks.  I think it does.
#    Will need to fix that.
#

{
   Suppress leaking the GIL.  Happens once per process, see comment in ceval.c.
   Memcheck:Leak
   fun:malloc
   fun:PyThread_allocate_lock
   fun:PyEval_InitThreads
}

{
   Suppress leaking the GIL after a fork.
   Memcheck:Leak
   fun:malloc
   fun:PyThread_allocate_lock
   fun:PyEval_ReInitThreads
}

{
   Suppress leaking the autoTLSkey.  This looks like it shouldn't leak though.
   Memcheck:Leak
   fun:malloc
   fun:PyThread_create_key
   fun:_PyGILState_Init
   fun:Py_InitializeEx
   fun:Py_Main
}

{
   Hmmm, is this a real leak or like the GIL?
   Memcheck:Leak
   fun:malloc
   fun:PyThread_ReInitTLS
}

{
   Handle PyMalloc confusing valgrind (possibly leaked)
   Memcheck:Leak
   fun:realloc
   fun:_PyObject_GC_Resize
   fun:COMMENT_THIS_LINE_TO_DISABLE_LEAK_WARNING
}

{
   Handle PyMalloc confusing valgrind (possibly leaked)
   Memcheck:Leak
   fun:malloc
   fun:_PyObject_GC_New
   fun:COMMENT_THIS_LINE_TO_DISABLE_LEAK_WARNING
}

{
   Handle PyMalloc confusing valgrind (possibly leaked)
   Memcheck:Leak
   fun:malloc
   fun:_PyObject_GC_NewVar
   fun:COMMENT_THIS_LINE_TO_DISABLE_LEAK_WARNING
}

#
# Non-python specific leaks
#

{
   Handle pthread issue (possibly leaked)
   Memcheck:Leak
   fun:calloc
   fun:allocate_dtv
   fun:_dl_allocate_tls_storage
   fun:_dl_allocate_tls
}

{
   Handle pthread issue (possibly leaked)
   Memcheck:Leak
   fun:memalign
   fun:_dl_allocate_tls_storage
   fun:_dl_allocate_tls
}

###{
###   ADDRESS_IN_RANGE/Invalid read of size 4
###   Memcheck:Addr4
###   fun:_PyObject_Free
###}
###
###{
###   ADDRESS_IN_RANGE/Invalid read of size 4
###   Memcheck:Value4
###   fun:_PyObject_Free
###}
###
###{
###   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/Conditional jump or move depends on uninitialised value
###   Memcheck:Cond
###   fun:_PyObject_Free
###}

###{
###   ADDRESS_IN_RANGE/Invalid read of size 4
###   Memcheck:Addr4
###   fun:_PyObject_Realloc
###}
###
###{
###   ADDRESS_IN_RANGE/Invalid read of size 4
###   Memcheck:Value4
###   fun:_PyObject_Realloc
###}
###
###{
###   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
###}
###
###{
###   ADDRESS_IN_RANGE/Conditional jump or move depends on uninitialised value
###   Memcheck:Cond
###   fun:_PyObject_Realloc
###}

###
### All the suppressions below are for errors that occur within libraries
### that Python uses.  The problems to not appear to be related to Python's
### use of the libraries.
###

{
   Generic ubuntu ld problems
   Memcheck:Addr8
   obj:/lib/ld-2.4.so
   obj:/lib/ld-2.4.so
   obj:/lib/ld-2.4.so
   obj:/lib/ld-2.4.so
}

{
   Generic gentoo ld problems
   Memcheck:Cond
   obj:/lib/ld-2.3.4.so
   obj:/lib/ld-2.3.4.so
   obj:/lib/ld-2.3.4.so
   obj:/lib/ld-2.3.4.so
}

{
   DBM problems, see test_dbm
   Memcheck:Param
   write(buf)
   fun:write
   obj:/usr/lib/libdb1.so.2
   obj:/usr/lib/libdb1.so.2
   obj:/usr/lib/libdb1.so.2
   obj:/usr/lib/libdb1.so.2
   fun:dbm_close
}

{
   DBM problems, see test_dbm
   Memcheck:Value8
   fun:memmove
   obj:/usr/lib/libdb1.so.2
   obj:/usr/lib/libdb1.so.2
   obj:/usr/lib/libdb1.so.2
   obj:/usr/lib/libdb1.so.2
   fun:dbm_store
   fun:dbm_ass_sub
}

{
   DBM problems, see test_dbm
   Memcheck:Cond
   obj:/usr/lib/libdb1.so.2
   obj:/usr/lib/libdb1.so.2
   obj:/usr/lib/libdb1.so.2
   fun:dbm_store
   fun:dbm_ass_sub
}

{
   DBM problems, see test_dbm
   Memcheck:Cond
   fun:memmove
   obj:/usr/lib/libdb1.so.2
   obj:/usr/lib/libdb1.so.2
   obj:/usr/lib/libdb1.so.2
   obj:/usr/lib/libdb1.so.2
   fun:dbm_store
   fun:dbm_ass_sub
}

{
   GDBM problems, see test_gdbm
   Memcheck:Param
   write(buf)
   fun:write
   fun:gdbm_open

}

{
   Uninitialised byte(s) false alarm, see bpo-35561
   Memcheck:Param
   epoll_ctl(event)
   fun:epoll_ctl
   fun:pyepoll_internal_ctl
}

{
   ZLIB problems, see test_gzip
   Memcheck:Cond
   obj:/lib/libz.so.1.2.3
   obj:/lib/libz.so.1.2.3
   fun:deflate
}

{
   Avoid problems w/readline doing a putenv and leaking on exit
   Memcheck:Leak
   fun:malloc
   fun:xmalloc
   fun:sh_set_lines_and_columns
   fun:_rl_get_screen_size
   fun:_rl_init_terminal_io
   obj:/lib/libreadline.so.4.3
   fun:rl_initialize
}

# Valgrind emits "Conditional jump or move depends on uninitialised value(s)"
# false alarms on GCC builtin strcmp() function. The GCC code is correct.
#
# Valgrind bug: https://bugs.kde.org/show_bug.cgi?id=264936
{
   bpo-38118: Valgrind emits false alarm on GCC builtin strcmp()
   Memcheck:Cond
   fun:PyUnicode_Decode
}

###
### These occur from somewhere within the SSL, when running
###  test_socket_sll.  They are too general to leave on by default.
###
###{
###   somewhere in SSL stuff
###   Memcheck:Cond
###   fun:memset
###}
###{
###   somewhere in SSL stuff
###   Memcheck:Value4
###   fun:memset
###}
###
###{
###   somewhere in SSL stuff
###   Memcheck:Cond
###   fun:MD5_Update
###}
###
###{
###   somewhere in SSL stuff
###   Memcheck:Value4
###   fun:MD5_Update
###}

# Fedora's package "openssl-1.0.1-0.1.beta2.fc17.x86_64" on x86_64
# See http://bugs.python.org/issue14171
{
   openssl 1.0.1 prng 1
   Memcheck:Cond
   fun:bcmp
   fun:fips_get_entropy
   fun:FIPS_drbg_instantiate
   fun:RAND_init_fips
   fun:OPENSSL_init_library
   fun:SSL_library_init
   fun:init_hashlib
}

{
   openssl 1.0.1 prng 2
   Memcheck:Cond
   fun:fips_get_entropy
   fun:FIPS_drbg_instantiate
   fun:RAND_init_fips
   fun:OPENSSL_init_library
   fun:SSL_library_init
   fun:init_hashlib
}

{
   openssl 1.0.1 prng 3
   Memcheck:Value8
   fun:_x86_64_AES_encrypt_compact
   fun:AES_encrypt
}

#
# All of these problems come from using test_socket_ssl
#
{
   from test_socket_ssl
   Memcheck:Cond
   fun:BN_bin2bn
}

{
   from test_socket_ssl
   Memcheck:Cond
   fun:BN_num_bits_word
}

{
   from test_socket_ssl
   Memcheck:Value4
   fun:BN_num_bits_word
}

{
   from test_socket_ssl
   Memcheck:Cond
   fun:BN_mod_exp_mont_word
}

{
   from test_socket_ssl
   Memcheck:Cond
   fun:BN_mod_exp_mont
}

{
   from test_socket_ssl
   Memcheck:Param
   write(buf)
   fun:write
   obj:/usr/lib/libcrypto.so.0.9.7
}

{
   from test_socket_ssl
   Memcheck:Cond
   fun:RSA_verify
}

{
   from test_socket_ssl
   Memcheck:Value4
   fun:RSA_verify
}

{
   from test_socket_ssl
   Memcheck:Value4
   fun:DES_set_key_unchecked
}

{
   from test_socket_ssl
   Memcheck:Value4
   fun:DES_encrypt2
}

{
   from test_socket_ssl
   Memcheck:Cond
   obj:/usr/lib/libssl.so.0.9.7
}

{
   from test_socket_ssl
   Memcheck:Value4
   obj:/usr/lib/libssl.so.0.9.7
}

{
   from test_socket_ssl
   Memcheck:Cond
   fun:BUF_MEM_grow_clean
}

{
   from test_socket_ssl
   Memcheck:Cond
   fun:memcpy
   fun:ssl3_read_bytes
}

{
   from test_socket_ssl
   Memcheck:Cond
   fun:SHA1_Update
}

{
   from test_socket_ssl
   Memcheck:Value4
   fun:SHA1_Update
}

{
   test_buffer_non_debug
   Memcheck:Addr4
   fun:PyUnicodeUCS2_FSConverter
}

{
   test_buffer_non_debug
   Memcheck:Addr4
   fun:PyUnicode_FSConverter
}

{
   wcscmp_false_positive
   Memcheck:Addr8
   fun:wcscmp
   fun:_PyOS_GetOpt
   fun:Py_Main
   fun:main
}

# Additional suppressions for the unified decimal tests:
{
   test_decimal
   Memcheck:Addr4
   fun:PyUnicodeUCS2_FSConverter
}

{
   test_decimal2
   Memcheck:Addr4
   fun:PyUnicode_FSConverter
}

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