Please consider the following situation: 1. Trying to upgrade @world. Portage fails to automatically rebuild the app-emulation/libvirt-glib which result in an error about slot conflict: $ sudo emerge -qpvuDN @world [ebuild U ] dev-libs/libnatspec-0.2.6-r1 [0.2.6] USE="python -doc" PYTHON_TARGETS="python2_7%*" [ebuild U ] games-simulation/openttd-1.5.0 [1.4.4] USE="iconv icu openmedia png timidity truetype zlib -aplaymidi -debug -dedicated -lzo" CPU_FLAGS_X86="sse" [ebuild U ] app-emulation/libvirt-1.2.14-r2 [1.2.12] USE="avahi caps fuse libvirtd macvtap nls policykit qemu sasl systemd udev vepa virt-network -audit -firewalld (-glusterfs) -iscsi -lvm -lxc -nfs -numa -openvz -parted -pcap -phyp -rbd (-selinux) -uml -virtualbox (-wireshark-plugins) -xen" [ebuild U ] dev-python/libvirt-python-1.2.14 [1.2.12] USE="{-test}" PYTHON_TARGETS="python2_7 python3_3 -python3_4" [ebuild U ] net-misc/freerdp-1.2.1_pre20150326 [1.1.0_beta1_p20130710-r1] USE="X alsa client cups ffmpeg gstreamer jpeg pulseaudio usb%* xv -debug -doc (-neon) -server -smartcard {-test} -wayland% -xinerama (-channels%*) (-directfb%)" CPU_FLAGS_X86="sse2" !!! Multiple package instances within a single package slot have been pulled !!! into the dependency graph, resulting in a slot conflict: app-emulation/libvirt:0 (app-emulation/libvirt-1.2.12:0/1.2.12::gentoo, installed) pulled in by >=app-emulation/libvirt-0.9.10:0/1.2.12= required by (app-emulation/libvirt-glib-0.2.0:0/0::gentoo, installed) ^^^^^^^^^^ (app-emulation/libvirt-1.2.14-r2:0/1.2.14::gentoo, ebuild scheduled for merge) pulled in by app-emulation/libvirt:0/1.2.14 required by (dev-python/libvirt-python-1.2.14:0/0::gentoo, ebuild scheduled for merge) ^^^^^^^^^ net-misc/freerdp:0 (net-misc/freerdp-1.2.1_pre20150326:0/1.2::gentoo, ebuild scheduled for merge) pulled in by (no parents that aren't satisfied by other packages in this slot) (net-misc/freerdp-1.1.0_beta1_p20130710-r1:0/0::gentoo, installed) pulled in by <net-misc/freerdp-1.2 required by (net-misc/remmina-1.1.2:0/0::gentoo, installed) ^ ^^^ 2. OK, lets exclude net-misc/freerdp: $ sudo emerge --exclude net-misc/freerdp -avuDN @world These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild U ] dev-libs/libnatspec-0.2.6-r1::gentoo [0.2.6::gentoo] USE="python -doc" PYTHON_TARGETS="python2_7%*" 0 KiB [ebuild U ] games-simulation/openttd-1.5.0::gentoo [1.4.4::gentoo] USE="iconv icu openmedia png timidity truetype zlib -aplaymidi -debug -dedicated -lzo" CPU_FLAGS_X86="sse" 9 785 KiB [ebuild r U ] app-emulation/libvirt-1.2.14-r2:0/1.2.14::gentoo [1.2.12:0/1.2.12::gentoo] USE="avahi caps fuse libvirtd macvtap nls policykit qemu sasl systemd udev vepa virt-network -audit -firewalld (-glusterfs) -iscsi -lvm -lxc -nfs -numa -openvz -parted -pcap -phyp -rbd (-selinux) -uml -virtualbox (-wireshark-plugins) -xen" 28 270 KiB [ebuild rR ] app-emulation/libvirt-glib-0.2.0::gentoo USE="introspection python vala" PYTHON_TARGETS="python2_7" 0 KiB [ebuild U ] dev-python/libvirt-python-1.2.14::gentoo [1.2.12::gentoo] USE="{-test}" PYTHON_TARGETS="python2_7 python3_3 -python3_4" 162 KiB Total: 5 packages (4 upgrades, 1 reinstall), Size of downloads: 38 215 KiB The following packages are causing rebuilds: (app-emulation/libvirt-1.2.14-r2:0/1.2.14::gentoo, ebuild scheduled for merge) causes rebuilds for: (app-emulation/libvirt-glib-0.2.0:0/0::gentoo, ebuild scheduled for merge) Would you like to merge these packages? [Yes/No] 3. Previous command finished successfully. Lets try the same but without "--exclude" again. Now portage correctly skips net-misc/freerdp with just a warning: $ sudo emerge -avuDN @world These are the packages that would be merged, in order: Calculating dependencies... done! Total: 0 packages, Size of downloads: 0 KiB WARNING: One or more updates/rebuilds have been skipped due to a dependency conflict: net-misc/freerdp:0 (net-misc/freerdp-1.2.1_pre20150326:0/1.2::gentoo, ebuild scheduled for merge) conflicts with <net-misc/freerdp-1.2 required by (net-misc/remmina-1.1.2:0/0::gentoo, installed) ^ ^^^ Nothing to merge; quitting. $ emerge --info sys-apps/portage Portage 2.2.18 (python 3.3.5-final-0, hardened/linux/amd64, gcc-4.8.4, glibc-2.20-r2, 3.14.40-hardened-r3 x86_64) ================================================================= System Settings ================================================================= System uname: Linux-3.14.40-hardened-r3-x86_64-AMD_Opteron-tm-_Processor_4332_HE-with-gentoo-2.2 KiB Mem: 16411808 total, 12106124 free KiB Swap: 16777212 total, 16777212 free Timestamp of repository gentoo: Sat, 09 May 2015 00:45:01 +0000 sh dash 0.5.7.4 ld GNU ld (Gentoo 2.24 p1.4) 2.24 app-shells/bash: 4.2_p53::gentoo dev-java/java-config: 2.2.0::gentoo dev-lang/perl: 5.20.2::gentoo dev-lang/python: 2.7.9-r1::gentoo, 3.3.5-r1::gentoo, 3.4.1::gentoo dev-util/cmake: 2.8.12.2-r1::gentoo dev-util/pkgconfig: 0.28-r2::gentoo sys-apps/baselayout: 2.2::gentoo sys-apps/openrc: 0.13.11::gentoo sys-apps/sandbox: 2.6-r1::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69::gentoo sys-devel/automake: 1.11.6-r1::gentoo, 1.12.6::gentoo, 1.13.4::gentoo sys-devel/binutils: 2.24-r3::gentoo sys-devel/gcc: 4.8.4::gentoo sys-devel/gcc-config: 1.7.3::gentoo sys-devel/libtool: 2.4.6::gentoo sys-devel/make: 4.1-r1::gentoo sys-kernel/linux-headers: 3.14::gentoo (virtual/os-headers) sys-libs/glibc: 2.20-r2::gentoo Repositories: gentoo location: /var/cache/portage/tree priority: -1000 local location: /usr/local/portage masters: gentoo priority: 0 puleglot location: /var/cache/portage/repos/puleglot sync-type: git sync-uri: git://puleglot.ru/gentoo/puleglot-overlay.git masters: gentoo ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -march=bdver2 -mtune=bdver2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/easy-rsa /usr/share/gnupg/qualified.txt" 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="-O2 -march=bdver2 -mtune=bdver2 -pipe" DISTDIR="/var/cache/portage/distfiles" EMERGE_DEFAULT_OPTS="--with-bdeps=y --binpkg-respect-use=y --ask-enter-invalid" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs buildsyspkg compress-build-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms split-log strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync webrsync-gpg xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://mirror.yandex.ru/gentoo-distfiles/ ftp://mirror.yandex.ru/gentoo-distfiles/" LANG="ru_RU.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j6" PKGDIR="/var/cache/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" PORTAGE_TMPDIR="/var/tmp" USE="X aac acl acpi aio alsa amd64 amr ape asyncns avahi bash-completion berkdb bluetooth bluray branding bzip2 cairo caps cdda cddb cdparanoia cdr cli colord cracklib crypt cryptsetup cups cxx dbus dconf device-mapper djvu dri dts dvd dvdr eds egl evo examples exif faac faad ffmpeg flac fontconfig fuse gdbm gif gnome gnome-keyring gnome-online-accounts gpm gstreamer gtk gtk3 hardened iconv icu idn ieee1394 introspection ipv6 jpeg jpeg2k justify libass libnotify libsamplerate libsecret lz4 lzma mac mad maildir mms mmx mmxext modules mp3 mp4 multilib musepack musicbrainz nautilus ncurses networkmanager nls nptl ogg openal opengl openmp opus pam pax_kernel pcre perl png policykit postscript pulseaudio python raw readline samba sasl session speex sse sse2 ssl startup-notification svg systemd tcpd theora tiff tls truetype udev unicode upnp-av urandom usb vaapi vdpau vim-syntax vorbis vpx wavpack webp x264 xattr xfs xtpax xv xvid xz zeroconf 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" CAMERAS="*" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext sse sse2 sse3 ssse3 sse4_1 sse4_2 avx fma3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" GRUB_PLATFORMS="pc" INPUT_DEVICES="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en ru" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_3" QEMU_SOFTMMU_TARGETS="aarch64 arm i386 mips mips64 mips64el mipsel ppc ppc64 ppcemb x86_64" RUBY_TARGETS="ruby19 ruby20" USERLAND="GNU" VIDEO_CARDS="radeon radeonsi 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: CPPFLAGS, CTARGET, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON ================================================================= Package Settings ================================================================= sys-apps/portage-2.2.18::gentoo was built with the following: USE="(ipc) (xattr) -build -doc -epydoc (-selinux)" ABI_X86="64" LINGUAS="ru" PYTHON_TARGETS="python2_7 python3_3 (-pypy) -python3_4"
A larger --backtrack setting will typically solve cases like this. *** This bug has been marked as a duplicate of bug 540562 ***
