Bug 651732 – sys-devel/gcc-6.4.0-r1 is very resource/memory hungry

• Status: RESOLVED CANTFIX
• Product: Gentoo Linux

[Description Joseph 2018-03-27 15:44:24 UTC]

There is a but in gcc-6.4.0-r1 or it is very resource/memory hungry. 

On low profile systems gcc-6.4.0-r1 fails to compile large packages (it happened twice to me), example a box:
Intel(R) Atom(TM) CPU 330 @ 1.60GHz with 2GB of RAM

and "gcc-4.9.4" compiled "gcc-6.4.0-r1" with MAKEOPTS="-j5" OK
but when I switched/upgrade profile to "gcc-6.4.0-r1" it failed to
compile gcc-6.4.0 with MAKEOPTS="-j5"
I had lower MAKEOPTS to -j1

So it seems to me the gcc-6.4.0-r1 much more resource hungry or there is
a bug in it.
Here is the log: 
 http://www.sysconcept.ca/build.log

My second box was an AMD 4-core CPU with 4GB or RAM on this box 
webkit-gtk-2.18.6 failed (compile phase) with gcc-6.4.0-r1 
Solution was to lower MAKEOPTS to -j1

Reproducible: Always




emerge --info
Portage 2.3.24 (python 3.5.4-final-0, default/linux/amd64/17.0/desktop, gcc-6.4.0, glibc-2.25-r10, 4.9.6-gentoo-r1 x86_64)
=================================================================
System uname: Linux-4.9.6-gentoo-r1-x86_64-Intel-R-_Atom-TM-_CPU_330_@_1.60GHz-with-gentoo-2.4.1
KiB Mem:     2038868 total,   1278768 free
KiB Swap:    2097148 total,   2029532 free
Timestamp of repository gentoo: Wed, 14 Mar 2018 18:00:01 +0000
Head commit of repository gentoo: 04417076a13a10d172b6e00d22f04ffa128eae38
sh bash 4.4_p12
ld GNU ld (Gentoo 2.29.1 p3) 2.29.1
app-shells/bash:          4.4_p12::gentoo
dev-java/java-config:     2.2.0-r3::gentoo
dev-lang/perl:            5.24.3::gentoo
dev-lang/python:          2.7.14-r1::gentoo, 3.4.5::gentoo, 3.5.4-r1::gentoo
dev-util/cmake:           3.9.6::gentoo
dev-util/pkgconfig:       0.29.2::gentoo
sys-apps/baselayout:      2.4.1-r2::gentoo
sys-apps/openrc:          0.34.11::gentoo
sys-apps/sandbox:         2.12::gentoo
sys-devel/autoconf:       2.13::gentoo, 2.69-r4::gentoo
sys-devel/automake:       1.11.6-r3::gentoo, 1.15.1-r2::gentoo
sys-devel/binutils:       2.28-r2::gentoo, 2.29.1-r1::gentoo
sys-devel/gcc:            4.9.4::gentoo, 5.4.0-r3::gentoo, 6.4.0-r1::gentoo
sys-devel/gcc-config:     1.8-r1::gentoo
sys-devel/libtool:        2.4.6-r3::gentoo
sys-devel/make:           4.2.1::gentoo
sys-kernel/linux-headers: 4.13::gentoo (virtual/os-headers)
sys-libs/glibc:           2.25-r10::gentoo
Repositories:

gentoo
    location: /usr/portage
    sync-type: rsync
    sync-uri: rsync://10.10.0.6/gentoo-portage
    priority: -1000
    sync-rsync-verify-metamanifest: no
    sync-rsync-extra-opts: 

Local
    location: /usr/local/portage
    masters: gentoo
    priority: 99999999

ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="* -@EULA PUEL dlj-1.1 Oracle-BCLA-JavaSE"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=core2 -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /opt/brother/scanner/brscan4/brsanenetdevice4.cfg /usr/lib64/fax /usr/share/easy-rsa /usr/share/gnupg/qualified.txt /var/spool/fax/etc"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c"
CXXFLAGS="-march=core2 -O2 -pipe"
DISTDIR="/usr/portage/distfiles"
EMERGE_DEFAULT_OPTS="--autounmask-write=y --keep-going --with-bdeps=y"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync multilib-strict news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="ftp://ftp.gtlib.gatech.edu/pub/gentoo http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror"
LANG="en_US.utf8"
LC_ALL="en_US.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j5"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git"
PORTAGE_TMPDIR="/var/tmp"
USE="X a52 aac acpi alsa amd64 apache2 berkdb bluetooth branding brandingdvd bzip2 cairo cdda cdr cgi cli consolekit crypt cups cxx dbus dri dts dvd dvdr emboss encode exif fam flac foomaticdb fortran gdbm gif gimp gimpprint glamor gpm gtk iconv ipv6 java jpeg lcms ldap libnotify lm_sensors lock mad mmx mng modules mp3 mp4 mpeg multilib mysql ncurses nls nplt nptl ogg opengl openmp pam pango pcre pdf png policykit ppds qt3support qt5 readline scanner sdl seccomp session spell sse sse2 ssl startup-notification svg tcpd tetex thunar tiff truetype type1 udev udisks unicode upower usb vorbis wxwidgets x264 xattr xcb xml xv xvid zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext sse sse2 sse3 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="evdev" KERNEL="linux" L10N="en" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-6" POSTGRES_TARGETS="postgres9_5" PYTHON_SINGLE_TARGET="python3_5" PYTHON_TARGETS="python2_7 python3_5" RUBY_TARGETS="ruby22 ruby23" SANE_BACKENDS="fujitsu" USERLAND="GNU" VIDEO_CARDS="intel vesa" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset:  CC, CPPFLAGS, CTARGET, CXX, INSTALL_MASK, LINGUAS, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

[Comment 1 Ben Kohler 2018-03-27 15:50:03 UTC]

Dupe of bug 623156?

[Comment 2 Jeroen Roovers (RETIRED) 2018-03-28 06:46:13 UTC]

Correct.

[Comment 3 Jeroen Roovers (RETIRED) 2018-03-28 06:46:43 UTC]

(In reply to Ben Kohler from comment #1)
> Dupe of bug 623156?

That would make for a lot of duplicates, not particularly of that one.