| Subject: | DBD-Pg 3.9.1 memory leak |
| Date: | Mon, 2 Sep 2019 09:21:26 +0300 |
| To: | bug-DBD-Pg [...] rt.cpan.org |
| From: | Michael <splien.ma [...] gmail.com> |
Hello.
There is a memory leak in the module when executing database queries.
My research has shown that a leak occurs when memory is released when the finish function is called.
Additional info
a /home/asper/work/perl.dhcp # cpanm --info DBD::Pg
TURNSTEP/DBD-Pg-3.9.1.tar.gz
a /home/asper/work/perl.dhcp # uname -a
Linux a 5.1.5-gentoo #1 SMP PREEMPT Mon Jun 3 08:24:06 MSK 2019 x86_64 Intel(R) Core(TM) i5-3450 CPU @ 3.10GHz
GenuineIntel GNU/Linux
DATABASE SCHEME
CREATE TABLE subnets (
ifname TEXT NOT NULL, -- Interface name
subnet TEXT NOT NULL, -- Only a CIDR mask.
lease_time INTEGER NOT NULL, -- The number of seconds a lease is good for.
gateway TEXT, -- The IPv4 gateway to supply to clients;
subnet_mask TEXT, -- The IPv4 subnet mask to supply to clients;
broadcast_address TEXT, -- The IPv4 broadcast address to supply to clients; maybe null.
ntp_servers TEXT, -- A comma-separated list of IPv4 addresses pointing to NTP servers; limit 3;
may be null.
domain_name_servers TEXT, -- A comma-separated list of IPv4 addresses pointing to DNS servers; limit 3;
may be null.
domain_name TEXT, -- The name of the search domain to be provided to clients.
PRIMARY KEY (subnet)
);
a /home/asper/work/perl.dhcp # pg_config10
BINDIR = /usr/lib64/postgresql-10/bin
DOCDIR = /usr/share/doc/postgresql-10.9
HTMLDIR = /usr/share/doc/postgresql-10.9/html
INCLUDEDIR = /usr/include/postgresql-10
PKGINCLUDEDIR = /usr/include/postgresql-10
INCLUDEDIR-SERVER = /usr/include/postgresql-10/server
LIBDIR = /usr/lib64/postgresql-10/lib64
PKGLIBDIR = /usr/lib64/postgresql-10/lib64
LOCALEDIR = /usr/lib64/postgresql-10/share/locale
MANDIR = /usr/share/postgresql-10/man
SHAREDIR = /usr/share/postgresql-10
SYSCONFDIR = /etc/postgresql-10
PGXS = /usr/lib64/postgresql-10/lib64/pgxs/src/makefiles/pgxs.mk
CONFIGURE = '--prefix=/usr' '--build=x86_64-pc-linux-gnu' '--host=x86_64-pc-linux-gnu' '--mandir=/usr/share/man'
'--infodir=/usr/share/info' '--datadir=/usr/share' '--sysconfdir=/etc' '--localstatedir=/var/lib'
'--htmldir=/usr/share/doc/postgresql-10.9/html' '--libdir=/usr/lib64/postgresql-10/lib64'
'--prefix=/usr/lib64/postgresql-10' '--datadir=/usr/share/postgresql-10' '--docdir=/usr/share/doc/postgresql-10.9'
'--includedir=/usr/include/postgresql-10' '--mandir=/usr/share/postgresql-10/man' '--sysconfdir=/etc/postgresql-10'
'--with-system-tzdata=/usr/share/zoneinfo' '--enable-spinlocks' '--disable-debug' '--enable-thread-safety' '--with-icu'
'--without-gssapi' '--without-ldap' '--with-pam' '--with-perl' '--with-python' '--with-readline' '--with-openssl'
'--without-systemd' '--without-tcl' '--with-libxml' '--with-libxslt' '--with-zlib' '--enable-nls='''ru' 'en' '''''
'build_alias=x86_64-pc-linux-gnu' 'host_alias=x86_64-pc-linux-gnu' 'target_alias=en' 'CFLAGS=-march=x86-64 -O2 -pipe
-mtune=generic' 'LDFLAGS=-Wl,-O1 -Wl,--as-needed'
'PKG_CONFIG_PATH=/var/tmp/portage/dev-db/postgresql-10.9/temp/python3.5/pkgconfig' 'LDFLAGS_EX=-Wl,-O1 -Wl,--as-needed'
'LDFLAGS_SL=-Wl,-O1 -Wl,--as-needed'
CC = x86_64-pc-linux-gnu-gcc
CPPFLAGS = -D_GNU_SOURCE -I/usr/include/libxml2
CFLAGS = -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels
-Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard
-Wno-format-truncation -Wno-stringop-truncation -march=x86-64 -O2 -pipe -mtune=generic
CFLAGS_SL = -fPIC
LDFLAGS = -Wl,-O1 -Wl,--as-needed -Wl,--as-needed -Wl,-rpath,'/usr/lib64/postgresql-10/lib64',--enable-new-dtags
LDFLAGS_EX = -Wl,-O1 -Wl,--as-needed
LDFLAGS_SL = -Wl,-O1 -Wl,--as-needed -Wl,-O1 -Wl,--as-needed -Wl,-O1 -Wl,--as-needed -Wl,-O1 -Wl,--as-needed
LIBS = -lpgcommon -lpgport -lpthread -lxslt -lxml2 -lpam -lssl -lcrypto -lz -lreadline -lrt -lcrypt -ldl -lm
VERSION = PostgreSQL 10.9
a /home/asper/work/perl.dhcp # perl -V
Summary of my perl5 (revision 5 version 26 subversion 3) configuration:
Platform:
osname=linux
osvers=5.1.5-gentoo
archname=x86_64-linux
uname='linux a 5.1.5-gentoo #1 smp preempt mon jun 3 08:24:06 msk 2019 x86_64 intel(r) core(tm) i5-3450 cpu @
3.10ghz genuineintel gnulinux '
config_args='-de -Dprefix=/usr/local/perlbrew/perls/perl-5.26.3
-Aeval:scriptdir=/usr/local/perlbrew/perls/perl-5.26.3/bin'
hint=recommended
useposix=true
d_sigaction=define
useithreads=undef
usemultiplicity=undef
use64bitint=define
use64bitall=define
uselongdouble=undef
usemymalloc=n
default_inc_excludes_dot=define
bincompat5005=undef
Compiler:
cc='cc'
ccflags ='-fwrapv -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=64'
optimize='-O2'
cppflags='-fwrapv -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include'
ccversion=''
gccversion='8.2.0'
gccosandvers=''
intsize=4
longsize=8
ptrsize=8
doublesize=8
byteorder=12345678
doublekind=3
d_longlong=define
longlongsize=8
d_longdbl=define
longdblsize=16
longdblkind=3
ivtype='long'
ivsize=8
nvtype='double'
nvsize=8
Off_t='off_t'
lseeksize=8
alignbytes=8
prototype=define
Linker and Libraries:
ld='cc'
ldflags =' -fstack-protector-strong -L/usr/local/lib'
libpth=/usr/local/lib /lib/../lib64 /usr/lib/../lib64 /lib /usr/lib /lib64 /usr/lib64 /usr/local/lib64
libs=-lpthread -lnsl -lgdbm -ldb -ldl -lm -lcrypt -lutil -lc -lgdbm_compat
perllibs=-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc
libc=libc-2.29.so
so=so
useshrplib=false
libperl=libperl.a
gnulibc_version='2.29'
Dynamic Linking:
dlsrc=dl_dlopen.xs
dlext=so
d_dlsymun=undef
ccdlflags='-Wl,-E'
cccdlflags='-fPIC'
lddlflags='-shared -O2 -L/usr/local/lib -fstack-protector-strong'
Characteristics of this binary (from libperl):
Compile-time options:
HAS_TIMES
PERLIO_LAYERS
PERL_COPY_ON_WRITE
PERL_DONT_CREATE_GVSV
PERL_MALLOC_WRAP
PERL_OP_PARENT
PERL_PRESERVE_IVUV
USE_64_BIT_ALL
USE_64_BIT_INT
USE_LARGE_FILES
USE_LOCALE
USE_LOCALE_COLLATE
USE_LOCALE_CTYPE
USE_LOCALE_NUMERIC
USE_LOCALE_TIME
USE_PERLIO
USE_PERL_ATOF
Locally applied patches:
Devel::PatchPerl 1.52
Built under linux
Compiled at Jun 14 2019 14:09:49
%ENV:
PERL5LIB="/root/perl5-5.26.3/lib/perl5:"
PERLBREW_HOME="/root/.perlbrew"
PERLBREW_MANPATH="/usr/local/perlbrew/perls/perl-5.26.3/man"
PERLBREW_PATH="/usr/local/perlbrew/bin:/usr/local/perlbrew/perls/perl-5.26.3/bin"
PERLBREW_PERL="perl-5.26.3"
PERLBREW_ROOT="/usr/local/perlbrew"
PERLBREW_SHELLRC_VERSION="0.86"
PERLBREW_VERSION="0.86"
PERL_CPANM_OPT=" --local-lib=/root/perl5-5.26.3"
@INC:
/root/perl5-5.26.3/lib/perl5/x86_64-linux
/root/perl5-5.26.3/lib/perl5
/usr/local/perlbrew/perls/perl-5.26.3/lib/site_perl/5.26.3/x86_64-linux
/usr/local/perlbrew/perls/perl-5.26.3/lib/site_perl/5.26.3
/usr/local/perlbrew/perls/perl-5.26.3/lib/5.26.3/x86_64-linux
/usr/local/perlbrew/perls/perl-5.26.3/lib/5.26.3
--
Regards,
Michael A. Manerko
Megalink Company, Engineer
318, Chehova street, Taganrog, Russia, 347932
tel work: +7 8634 431431 (ext 159)
tel mobile: +7 999 6939428
sip:159@tagan.ru
www.tagan.ru
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