use warnings;use strict;use IPC::SysV qw(IPC_PRIVATE IPC_RMID S_IRUSR S_IWUSR); my $idx_id = shmget(IPC_PRIVATE , 3000000000, S_IRUSR | S_IWUSR); print "Successfully reserved 3000000000 bytes shmem segment\n"; my $message="A" x 2147483647; shmwrite($idx_id , $message , 0 , 2147483647)  || die "shmwrite: $!";print" Successfully written 2147483647 bytes to shmem. Now will try 2147483648\n"; $message.="A"; shmwrite($idx_id, $message, 0, 2147483648)  || die "shmwrite: $!";shmctl($idx_id, IPC_RMID, 0)        || die "shmctl: $!";exit;

     Platform:    osname=linux    osvers=4.19.0    archname=x86_64-linux-gnu-thread-multi    uname='linux localhost 4.19.0 #1 smp debian 4.19.0 x86_64 gnulinux '    config_args='-Dmksymlinks -Dusethreads -Duselargefiles -Dcc=x86_64-linux-gnu-gcc -Dcpp=x86_64-linux-gnu-cpp -Dld=x86_64-linux-gnu-gcc -Dccflags=-DDEBIAN -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -ffile-prefix-map=/dummy/build/dir=. -flto=auto -ffat-lto-objects -flto=auto -ffat-lto-objects -fstack-protector-strong -Wformat -Werror=format-security -Dldflags= -Wl,-Bsymbolic-functions -flto=auto -ffat-lto-objects -flto=auto -Wl,-z,relro -Dlddlflags=-shared -Wl,-Bsymbolic-functions -flto=auto -ffat-lto-objects -flto=auto -Wl,-z,relro -Dcccdlflags=-fPIC -Darchname=x86_64-linux-gnu -Dprefix=/usr -Dprivlib=/usr/share/perl/5.34 -Darchlib=/usr/lib/x86_64-linux-gnu/perl/5.34 -Dvendorprefix=/usr -Dvendorlib=/usr/share/perl5 -Dvendorarch=/usr/lib/x86_64-linux-gnu/perl5/5.34 -Dsiteprefix=/usr/local -Dsitelib=/usr/local/share/perl/5.34.0 -Dsitearch=/usr/local/lib/x86_64-linux-gnu/perl/5.34.0 -Dman1dir=/usr/share/man/man1 -Dman3dir=/usr/share/man/man3 -Dsiteman1dir=/usr/local/man/man1 -Dsiteman3dir=/usr/local/man/man3 -Duse64bitint -Dman1ext=1 -Dman3ext=3perl -Dpager=/usr/bin/sensible-pager -Uafs -Ud_csh -Ud_ualarm -Uusesfio -Uusenm -Ui_libutil -Ui_xlocale -Uversiononly -DDEBUGGING=-g -Doptimize=-O2 -dEs -Duseshrplib -Dlibperl=libperl.so.5.34.0'    hint=recommended    useposix=true    d_sigaction=define    useithreads=define    usemultiplicity=define    use64bitint=define    use64bitall=define    uselongdouble=undef    usemymalloc=n    default_inc_excludes_dot=define  Compiler:    cc='x86_64-linux-gnu-gcc'    ccflags ='-D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fwrapv -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64'    optimize='-O2 -g'    cppflags='-D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fwrapv -fno-strict-aliasing -pipe -I/usr/local/include'    ccversion=''    gccversion='11.4.0'    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='x86_64-linux-gnu-gcc'    ldflags =' -fstack-protector-strong -L/usr/local/lib'    libpth=/usr/local/lib /usr/lib/x86_64-linux-gnu /usr/lib /lib/x86_64-linux-gnu /lib    libs=-lgdbm -lgdbm_compat -ldb -ldl -lm -lpthread -lc -lcrypt    perllibs=-ldl -lm -lpthread -lc -lcrypt    libc=/lib/x86_64-linux-gnu/libc.so.6    so=so    useshrplib=true    libperl=libperl.so.5.34    gnulibc_version='2.35'  Dynamic Linking:    dlsrc=dl_dlopen.xs    dlext=so    d_dlsymun=undef    ccdlflags='-Wl,-E'    cccdlflags='-fPIC'    lddlflags='-shared -L/usr/local/lib -fstack-protector-strong'Characteristics of this binary (from libperl):   Compile-time options:    HAS_TIMES    MULTIPLICITY    PERLIO_LAYERS    PERL_COPY_ON_WRITE    PERL_DONT_CREATE_GVSV    PERL_IMPLICIT_CONTEXT    PERL_MALLOC_WRAP    PERL_OP_PARENT    PERL_PRESERVE_IVUV    USE_64_BIT_ALL    USE_64_BIT_INT    USE_ITHREADS    USE_LARGE_FILES    USE_LOCALE    USE_LOCALE_COLLATE    USE_LOCALE_CTYPE    USE_LOCALE_NUMERIC    USE_LOCALE_TIME    USE_PERLIO    USE_PERL_ATOF    USE_REENTRANT_API    USE_THREAD_SAFE_LOCALE  Locally applied patches:    DEBPKG:debian/cpan_definstalldirs - Provide a sensible INSTALLDIRS default for modules installed from CPAN.    DEBPKG:debian/db_file_ver - https://bugs.debian.org/340047 Remove overly restrictive DB_File version check.    DEBPKG:debian/doc_info - Replace generic man(1) instructions with Debian-specific information.    DEBPKG:debian/enc2xs_inc - https://bugs.debian.org/290336 Tweak enc2xs to follow symlinks and ignore missing @INC directories.    DEBPKG:debian/errno_ver - https://bugs.debian.org/343351 Remove Errno version check due to upgrade problems with long-running processes.    DEBPKG:debian/libperl_embed_doc - https://bugs.debian.org/186778 Note that libperl-dev package is required for embedded linking    DEBPKG:fixes/respect_umask - Respect umask during installation    DEBPKG:debian/writable_site_dirs - Set umask approproately for site install directories    DEBPKG:debian/extutils_set_libperl_path - EU:MM: set location of libperl.a under /usr/lib    DEBPKG:debian/no_packlist_perllocal - Don't install .packlist or perllocal.pod for perl or vendor    DEBPKG:debian/fakeroot - Postpone LD_LIBRARY_PATH evaluation to the binary targets.    DEBPKG:debian/instmodsh_doc - Debian policy doesn't install .packlist files for core or vendor.    DEBPKG:debian/ld_run_path - Remove standard libs from LD_RUN_PATH as per Debian policy.    DEBPKG:debian/libnet_config_path - Set location of libnet.cfg to /etc/perl/Net as /usr may not be writable.    DEBPKG:debian/perlivp - https://bugs.debian.org/510895 Make perlivp skip include directories in /usr/local    DEBPKG:debian/squelch-locale-warnings - https://bugs.debian.org/508764 Squelch locale warnings in Debian package maintainer scripts    DEBPKG:debian/patchlevel - https://bugs.debian.org/567489 List packaged patches for 5.34.0-3ubuntu1.3 in patchlevel.h    DEBPKG:fixes/document_makemaker_ccflags - https://bugs.debian.org/628522 [rt.cpan.org #68613] Document that CCFLAGS should include $Config{ccflags}    DEBPKG:debian/find_html2text - https://bugs.debian.org/640479 Configure CPAN::Distribution with correct name of html2text    DEBPKG:debian/perl5db-x-terminal-emulator.patch - https://bugs.debian.org/668490 Invoke x-terminal-emulator rather than xterm in perl5db.pl    DEBPKG:debian/cpan-missing-site-dirs - https://bugs.debian.org/688842 Fix CPAN::FirstTime defaults with nonexisting site dirs if a parent is writable    DEBPKG:fixes/memoize_storable_nstore - [rt.cpan.org #77790] https://bugs.debian.org/587650 Memoize::Storable: respect 'nstore' option not respected    DEBPKG:debian/makemaker-pasthru - https://bugs.debian.org/758471 Pass LD settings through to subdirectories    DEBPKG:debian/makemaker-manext - https://bugs.debian.org/247370 Make EU::MakeMaker honour MANnEXT settings in generated manpage headers    DEBPKG:debian/kfreebsd-softupdates - https://bugs.debian.org/796798 Work around Debian Bug#796798    DEBPKG:fixes/memoize-pod - [rt.cpan.org #89441] Fix POD errors in Memoize    DEBPKG:debian/hurd-softupdates - https://bugs.debian.org/822735 Fix t/op/stat.t failures on hurd    DEBPKG:fixes/math_complex_doc_great_circle - https://bugs.debian.org/697567 [rt.cpan.org #114104] Math::Trig: clarify definition of great_circle_midpoint    DEBPKG:fixes/math_complex_doc_see_also - https://bugs.debian.org/697568 [rt.cpan.org #114105] Math::Trig: add missing SEE ALSO    DEBPKG:fixes/math_complex_doc_angle_units - https://bugs.debian.org/731505 [rt.cpan.org #114106] Math::Trig: document angle units    DEBPKG:fixes/cpan_web_link - https://bugs.debian.org/367291 CPAN: Add link to main CPAN web site    DEBPKG:debian/hppa_op_optimize_workaround - https://bugs.debian.org/838613 Temporarily lower the optimization of op.c on hppa due to gcc-6 problems    DEBPKG:debian/installman-utf8 - https://bugs.debian.org/840211 Generate man pages with UTF-8 characters    DEBPKG:debian/hppa_opmini_optimize_workaround - https://bugs.debian.org/869122 Lower the optimization level of opmini.c on hppa    DEBPKG:debian/sh4_op_optimize_workaround - https://bugs.debian.org/869373 Also lower the optimization level of op.c and opmini.c on sh4    DEBPKG:debian/perldoc-pager - https://bugs.debian.org/870340 [rt.cpan.org #120229] Fix perldoc terminal escapes when sensible-pager is less    DEBPKG:debian/prune_libs - https://bugs.debian.org/128355 Prune the list of libraries wanted to what we actually need.    DEBPKG:debian/mod_paths - Tweak @INC ordering for Debian    DEBPKG:debian/deprecate-with-apt - https://bugs.debian.org/747628 Point users to Debian packages of deprecated core modules    DEBPKG:debian/disable-stack-check - https://bugs.debian.org/902779 [GH #16607] Disable debugperl stack extension checks for binary compatibility with perl    DEBPKG:debian/perlbug-editor - https://bugs.debian.org/922609 Use "editor" as the default perlbug editor, as per Debian policy    DEBPKG:debian/eu-mm-perl-base - https://bugs.debian.org/962138 Suppress an ExtUtils::MakeMaker warning about our non-default @INC    DEBPKG:fixes/io_socket_ip_ipv6 - Disable getaddrinfo(3) AI_ADDRCONFIG for localhost and IPv4 numeric addresses    DEBPKG:debian/usrmerge-lib64 - https://bugs.debian.org/914128 Configure / libpth.U: Do not adjust glibpth when /usr/lib64 is present.    DEBPKG:debian/usrmerge-realpath - https://bugs.debian.org/914128 Configure / libpth.U: use realpath --no-symlinks on Debian    DEBPKG:debian/configure-regen - https://bugs.debian.org/762638 Regenerate Configure et al. after probe unit changes    DEBPKG:fixes/x32-io-msg-skip - https://bugs.debian.org/922609 Skip io/msg.t on x32 due to broken System V message queues    DEBPKG:fixes/encode-CVE-2021-36770 - mitigate @INC pollution when loading ConfigLocal    DEBPKG:fixes/gdbm-1.20 - https://bugs.debian.org/993514 [GH #18915] Fix GDBM_File to compile with version 1.20 and earlier    DEBPKG:disable-libperl-tests -    DEBPKG:CVE-2020-16156-1.patch - [PATCH] bugfix: signature verification type CANNOT_VERIFY was not recognized    DEBPKG:CVE-2020-16156-2.patch - [PATCH] Add two new failure modes based on cpan_path    DEBPKG:CVE-2020-16156-3.patch - [PATCH] use gpg --verify --output ... to disentangle data and signature    DEBPKG:CVE-2020-16156-4.patch - [PATCH] replacing die with mydie in three spots    DEBPKG:CVE-2020-16156-5.patch - [PATCH] disambiguate the call to gpg --output by adding --verify    DEBPKG:CVE-2020-16156-6.patch - [PATCH] s/gpg/$gpg/ in system, add quotes where needed    DEBPKG:CVE-2020-16156-7.patch - [PATCH] s,/dev/null,$devnull,    DEBPKG:CVE-2023-31484.patch - [PATCH] Add verify_SSL=>1 to HTTP::Tiny to verify https server identity    DEBPKG:CVE-2023-47038.patch - [PATCH 1/2] Fix read/write past buffer end: perl-security#140    DEBPKG:CVE-2022-48522.patch - [PATCH] Don't try to Sv[PI]V() on an undef index SV in find_uninit_var()  Built under linux  Compiled at Nov 23 2023 14:56:46  %ENV:    PERL5LIB="/home/valerio/perl5/lib/perl5"    PERL_LOCAL_LIB_ROOT="/home/valerio/perl5"    PERL_MB_OPT="--install_base "/home/valerio/perl5""    PERL_MM_OPT="INSTALL_BASE=/home/valerio/perl5"  @INC:    /home/valerio/perl5/lib/perl5    /etc/perl    /usr/local/lib/x86_64-linux-gnu/perl/5.34.0    /usr/local/share/perl/5.34.0    /usr/lib/x86_64-linux-gnu/perl5/5.34    /usr/share/perl5    /usr/lib/x86_64-linux-gnu/perl-base    /usr/lib/x86_64-linux-gnu/perl/5.34    /usr/share/perl/5.34    /usr/local/lib/site_perl