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Now with the code attached. Best regards, David Santiago On Thu, 1 Oct 2015 19:19:47 +0200 David Emanuel da Costa Santiago <deman...@gmail.com> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > > Hello all, > > Is the valgrind tool a reliable tool for checking for memory leaks in > perl and in our perl scripts? > > I have a perl script that's consuming all the memory available on my > system. I rechecked the script and since i didn't found anything > (algorithm wise) that can cause such memory consuption, I decided to > use valgrind. > > And valgrind is reporting a memory leak. :-( > > I'm running it as: > > valgrind --log-file=valgrind --trace-children=yes -v > - --show-leak-kinds=all --track-origins=yes --leak-check=full > perl /path/to/perl/script.pl > > > and i'm getting the output: > ==25483== LEAK SUMMARY: > ==25483== definitely lost: 23,347 bytes in 36 blocks > ==25483== indirectly lost: 76,082 bytes in 33 blocks > ==25483== possibly lost: 14,593,429 bytes in 52,715 blocks > ==25483== still reachable: 111,559 bytes in 2,948 blocks > ==25483== suppressed: 0 bytes in 0 blocks > > > When i look into the log file i see a lot of entries like: > > > ==25498== 2 bytes in 1 blocks are possibly lost in loss record 1 of > 5,588 > ==25498== at 0x4C29E6F: malloc > (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) > ==25498== > by 0x4EE1051: Perl_safesysmalloc > (in /usr/lib/perl5/core_perl/CORE/libperl.so) > ==25498== by > 0x4EE13E6: Perl_savepvn (in /usr/lib/perl5/core_perl/CORE/libperl.so) > ==25498== by 0x4F16B38: Perl_sv_magicext > (in /usr/lib/perl5/core_perl/CORE/libperl.so) > ==25498== by > 0x4F1A38A: Perl_sv_magic (in /usr/lib/perl5/core_perl/CORE/libperl.so) > ==25498== by 0x4E8F85E: Perl_gv_fetchpvn_flags > (in /usr/lib/perl5/core_perl/CORE/libperl.so) > ==25498== by > 0x4E89E2B: perl_parse (in /usr/lib/perl5/core_perl/CORE/libperl.so) > ==25498== by 0x400D9A: main (in /usr/bin/perl) > > > (i also get entries: "Use of uninitialised value") > > I even tried to set the environment variables PERL_DESTRUCT_LEVEL, > PERL_DEBUG, PERL_VALGRIND as described in > http://www.perlmonks.org/?node_id=550371 > Without any success. > > Did someone encounter this kind of issue in the past? If yes, how it > was solved? > > > My perl version is 5.22.0. > > > Thank you and best regards, > David Santiago > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v2 > > iQEcBAEBCAAGBQJWDWszAAoJEJ/OLjwuDYzK3y0H/0bJoCx6o6xdjTb3DUuoLQIp > Gyt/I7URulDEzKY9KAPWiTOECWiC12ZbqYg/dNID/p+Ap3UhOYnHTjIqs7M6Cmaz > RpzFU1nF/o8gpvkC3Rjr7iLsjtZuNIbMJvsH7Wp447qxD73JDtJdHGcS82a2wy3A > aIzy6sfpFesHPHAZNmitRgWReEtwHHBuKdxJyGOgkIGm6pIQFo+h7GMJmbdIsG+R > zBIOUIczMo8lRf9VbbhoYtgIZlhr1PQhG2LYHwOMeD2CXDj9vwNS47WagCv0fSv+ > a0ZR4uj8+q9HAoTUkbdaTZfbkMzi0p3Hd0Sgxw0BtjZ48uwtjZ+qkk7h8KKk5I0= > =rI+0 > -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBCAAGBQJWDXKQAAoJEJ/OLjwuDYzK5tIIAJPd2ziiuEY6WdNbRoe2MUXl mgG5XlaCJIgB12VVATi0AE6rCLVeXZnvdtga+3lYHxPhGZHymWR2vmW6mjf5/clZ 1wHe7etgtB/16nI5E8qHIuDI6zeWv6GFTW59aP4z+3SqH8ubGVvFFiYdTMewJlIt p5qxreOkrzBjEvI/j47V4FcnVOdpNvXz66mVDtroxgRu65YL21vUBIUZNwRChtKP w0sST1mNv5D2k2Srdgm8m/pFYysGZdR8C2B5Ia7GCNOJlg82boyTKGWQYJ9KyUp3 fMi2IFzAWkE2R2/IATS9uHI0dCLoZhHNDHSaNO/+fczAMO89Pt+JSU8/Uyy3Kv8= =KAN6 -----END PGP SIGNATURE-----
newsup.pl.tar.bz2
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