After the removal of version 5.1.10 from the tree, every attempt to upgrade has failed during compile phase, complaining of kernel configuration being invalid. From build log: ERROR: Kernel configuration is invalid. include/generated/autoconf.h or include/config/auto.conf are missing. Run 'make oldconfig && make prepare' on kernel src to fix it. I checked the kernel source tree and the specified files are present and accounted for. Reproducible: Always Steps to Reproduce: 1. emerge -u app-emulation/virtualbox 2. 3. Portage 2.3.0 (python 2.7.12-final-0, hardened/linux/amd64/selinux, gcc-4.9.4, glibc-2.23-r3, 4.7.10-hardened-gnu x86_64) ================================================================= System uname: Linux-4.7.10-hardened-gnu-x86_64-Intel-R-_Core-TM-_i3-3110M_CPU_@_2.40GHz-with-gentoo-2.3 KiB Mem: 16296836 total, 8321908 free KiB Swap: 2097148 total, 2097148 free Timestamp of repository gentoo: Fri, 20 Jan 2017 00:45:01 +0000 sh bash 4.3_p48-r1 ld GNU ld (Gentoo 2.25.1 p1.1) 2.25.1 app-shells/bash: 4.3_p48-r1::gentoo dev-java/java-config: 2.2.0-r3::gentoo dev-lang/perl: 5.22.3_rc4::gentoo dev-lang/python: 2.7.12::gentoo, 3.4.5::gentoo dev-util/cmake: 3.6.3::gentoo dev-util/pkgconfig: 0.28-r2::gentoo sys-apps/baselayout: 2.3::gentoo sys-apps/openrc: 0.22.4::gentoo sys-apps/sandbox: 2.10-r1::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69::gentoo sys-devel/automake: 1.11.6-r1::gentoo, 1.13.4::gentoo, 1.14.1::gentoo, 1.15::gentoo sys-devel/binutils: 2.25.1-r1::gentoo sys-devel/gcc: 4.9.4::gentoo sys-devel/gcc-config: 1.7.3::gentoo sys-devel/libtool: 2.4.6-r2::gentoo sys-devel/make: 4.1-r1::gentoo sys-kernel/linux-headers: 4.4::gentoo (virtual/os-headers) sys-libs/glibc: 2.23-r3::gentoo Repositories: gentoo location: /usr/portage sync-type: webrsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 local location: /usr/local/portage masters: gentoo kde location: /var/lib/overlays/kde sync-type: git sync-uri: https://anongit.gentoo.org/git/proj/kde.git masters: gentoo priority: 50 science location: /var/lib/overlays/science sync-type: git sync-uri: https://anongit.gentoo.org/git/proj/sci.git masters: gentoo priority: 50 ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="@FREE" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=core-avx-i -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /etc/stunnel/stunnel.conf /usr/lib64/libreoffice/program/sofficerc /usr/share/config /usr/share/easy-rsa /usr/share/gnupg/qualified.txt /var/bind" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.6/ext-active/ /etc/php/cgi-php5.6/ext-active/ /etc/php/cli-php5.6/ext-active/ /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=core-avx-i -O2 -pipe" DISTDIR="/usr/portage/distfiles" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs clean-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox selinux sesandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync webrsync-gpg xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="ftp://gd.tuwien.ac.at/opsys/linux/gentoo/ rsync://ftp6.linux.cz/pub/linux/gentoo/ ftp://ftp.fi.muni.cz/pub/linux/gentoo/ rsync://ftp.fi.muni.cz/pub/linux/gentoo/ ftp://gentoo.mirror.dkm.cz/pub/gentoo/ rsync://gentoo.mirror.dkm.cz/gentoo/ ftp://gentoo.mirror.web4u.cz/ rsync://trumpetti.atm.tut.fi/gentoo/ ftp://trumpetti.atm.tut.fi/gentoo/ ftp://ftp.free.fr/mirrors/ftp.gentoo.org/ ftp://gentoo.imj.fr/pub/gentoo/ ftp://mirrors.linuxant.fr/distfiles.gentoo.org/ ftp://gentoo.mirrors.ovh.net/gentoo-distfiles/ rsync://mirror.eu.oneandone.net/gentoo/ ftp://ftp.wh2.tu-dresden.de/pub/mirrors/gentoo ftp://mirror.netcologne.de/gentoo/ rsync://mirror.netcologne.de/gentoo/ ftp://ftp.halifax.rwth-aachen.de/gentoo/ rsync://ftp.halifax.rwth-aachen.de/gentoo/ ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo ftp://ftp.uni-erlangen.de/pub/mirrors/gentoo ftp://ftp-stud.hs-esslingen.de/pub/Mirrors/gentoo/ rsync://ftp-stud.hs-esslingen.de/gentoo/ rsync://gentoo.prz.rzeszow.pl/gentoo rsync://ftp.vectranet.pl/gentoo/ ftp://ftp.vectranet.pl/gentoo/ rsync://gentoo.bloodhost.ru/gentoo-distfiles ftp://gentoo.bloodhost.ru/ ftp://xeon.gentoo.ru/mirrors/gentoo/distfiles/ ftp://mirror.yandex.ru/gentoo-distfiles/ ftp://mirror.mdfnet.se/gentoo ftp://mirror.switch.ch/mirror/gentoo/" LANG="en_US.UTF8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j5 -l4" 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 aalib acl acpi alsa amd64 audiofile audit avahi bash-completion berkdb bindist blas bluetooth branding bzip2 cairo cdda cddb cdparanoia cdr clamav cli consolekit cracklib crypt css cups curl cxx dbus djvu dri dts dv dvd dvdr emboss encode exif fam fbcon ffmpeg fftw firefox flac fontconfig gdbm geoip geolocation gif gimp git gnuplot gphoto2 gpm gps graphviz gsl gstreamer hardened hddtemp hdf5 iconv icu imlib ipv6 jack jbig jemalloc jpeg jpeg2k justify kde kerberos kolab kontact ladspa lapack lash latex lcms ldap libnotify libsamplerate lm_sensors lua lzma mad matroska memcached memlimit mime mms mmx mmxext mng modplug modules mozilla mp3 mp4 mpeg mpi mplayer mtp multilib musepack musicbrainz mysql mysqli ncurses netcdf networkmanager nls nptl offensive ofx ogg open_perms openexr opengl openmp pam pax_kernel pcre pdf perl php pie plasma plotutils png policykit posix postgres postscript ppds python qml qt5 quicktime raw rdp readline rss samba sasl scanner sctp sdl seccomp selinux semantic-desktop session smartcard smp sndfile snmp sockets socks5 sox speex spell sqlite sse sse2 ssl ssp startup-notification svg sybase syslog szip taglib tcl tcpd theora threads tiff tk tools truetype udev udisks unconfined unicode upower urandom usb utils v4l vaapi vcd vdpau vhosts vnc vorbis wavpack wayland webp wifi wmf wxwidgets x264 xattr xcb xface xml xmlrpc xmp xmpp xpm xtpax xv xvid yaz zeroconf zlib" ABI_X86="64" ALSA_CARDS="hda-intel" 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="author braindump flow karbon plan sheets stage words" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="avx mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" 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" INPUT_DEVICES="evdev synaptics" KERNEL="linux" L10N="en en-US" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en en_US" NGINX_MODULES_HTTP="access auth_basic auth_pam autoindex browser cache_purge charset empty_gif fancyindex fastcgi geo gzip limit_conn limit_req map memcached metrics proxy realip referer rewrite scgi secure_link security split_clients ssi stub_status upload_progress upstream_check upstream_ip_hash userid uwsgi xslt" NGINX_MODULES_MAIL="imap pop3 smtp" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-6" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" QEMU_SOFTMMU_TARGETS="aarch64 arm ppc64 x86_64" QEMU_USER_TARGETS="x86_64" RUBY_TARGETS="ruby21" SANE_BACKENDS="hp" USERLAND="GNU" VIDEO_CARDS="intel i965" 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, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
Created attachment 460772 [details] emerge build log
If you use gcc-plugins in the kernel with any change on gcc you need to rebuild the kernel so the gcc-plugins get rebuild
This is the real error you have. cc1: error: incompatible gcc/plugin versions cc1: error: fail to initialize plugin ./scripts/gcc-plugins/constify_plugin.so cc1: error: incompatible gcc/plugin versions cc1: error: incompatible gcc/plugin versions
