When CONFIG_GRKERNSEC_PROC is set in a systemd environment, kde-plasma/polkit-kde-agent cannot register as a listener: polkit-kde-authentication-agent-1[613]: New PolkitAgentListener 0x3ae6b31d20 polkit-kde-authentication-agent-1[613]: Adding new listener PolkitQt1::Agent::Listener(0x3ae6b4c2b0) for 0x3ae6b31d20 polkit-kde-authentication-agent-1[613]: Listener online polkit-kde-authentication-agent-1[613]: "Cannot create unix session: No session for pid 613" polkit-kde-authentication-agent-1[613]: "Cannot register authentication agent!" polkit-kde-authentication-agent-1[613]: Authentication agent result: false polkit-kde-authentication-agent-1[613]: Couldn't register listener! polkit-kde-authentication-agent-1[613]: Invalid service name "/org/kde/polkit-kde-authentication-agent-1" using: "/org/kde/polkitkdeauthenticationagent1" Plasma then can't perform actions such as poweroff or reboot. This seems to be caused for the same reasons as https://bugs.gentoo.org/show_bug.cgi?id=472098 (wants to read /proc/1/cgroup) but unlike https://bugs.gentoo.org/show_bug.cgi?id=455938 setting CONFIG_GRKERNSEC_PROC_GID to polkitd doesn't fix the poweroff issues. Presumably polkit-kde-authentication-agent-1 needs a different group as well. Testing with: kde-plasma/polkit-kde-agent-5.5.5 sys-auth/polkit-0.113 sys-auth/polkit-qt-0.112.0-r1 sys-apps/systemd-226-r2 sys-kernel/hardened-sources-4.4.2 emerge --info: Portage 2.2.26 (python 2.7.10-final-0, hardened/linux/amd64, gcc-4.9.3, glibc-2.22-r4, 4.4.2-hardened x86_64) ================================================================= System uname: Linux-4.4.2-hardened-x86_64-AMD_Phenom-tm-_II_X4_B50_Processor-with-gentoo-2.2 KiB Mem: 8156420 total, 5045152 free KiB Swap: 0 total, 0 free Timestamp of repository gentoo: Sat, 09 Apr 2016 15:15:01 +0000 sh bash 4.3_p42-r1 ld GNU ld (Gentoo 2.25.1 p1.1) 2.25.1 app-shells/bash: 4.3_p42-r1::gentoo dev-java/java-config: 2.2.0-r3::gentoo dev-lang/perl: 5.20.2::gentoo dev-lang/python: 2.7.10-r1::gentoo, 3.4.3-r1::gentoo dev-util/cmake: 3.3.1-r1::gentoo dev-util/pkgconfig: 0.28-r2::gentoo sys-apps/baselayout: 2.2::gentoo sys-apps/openrc: 0.19.1::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, 1.12.6::gentoo, 1.13.4::gentoo, 1.14.1::gentoo, 1.15::gentoo sys-devel/binutils: 2.25.1-r1::gentoo sys-devel/gcc: 4.9.3::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: 4.3::gentoo (virtual/os-headers) sys-libs/glibc: 2.22-r4::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.uk.gentoo.org/gentoo-portage priority: -1000 ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/themes/oxygen-gtk/gtk-2.0" 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" CXXFLAGS="-march=native -O2 -pipe" DISTDIR="/usr/portage/distfiles" FCFLAGS="-march=native -O2 -pipe" FEATURES="assume-digests binpkg-logs cgroup config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync network-sandbox news parallel-fetch parallel-install preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-march=native -O2 -pipe" GENTOO_MIRRORS="ftp://mirror.bytemark.co.uk/gentoo/ http://mirror.bytemark.co.uk/gentoo/ http://mirror.qubenet.net/mirror/gentoo/ ftp://ftp.mirrorservice.org/sites/distfiles.gentoo.org/ http://www.mirrorservice.org/sites/distfiles.gentoo.org/" LANG="en_GB.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" PORTAGE_TMPDIR="/mnt/butter/" USE="3dnow 3dnowext X a52 aac acl acpi alsa amd64 apng ati berkdb bzip2 cairo caps cdda cddb cdr cjk cli cracklib crypt css custom-cflags cxx dbus declarative dga djvu dri dts dvd dvdnav dvdr ebook emacs encode epub exif fam ffmpeg fftw filecaps firefox flac fontconfig fortran ftp gdbm gif gimp glamor gmp gphoto2 gpu gstreamer gzip hardened hunspell ibus iconv icu idn ieee1394 imagemagick imap inotify ipv6 java java6 javascript jbig jpeg jpeg2k justify kde lame lapack lcms libass libnotify lm_sensors lzma lzo m17n-lib mad matroska mime mjpeg mmap mmx mmxext mng modules mozilla mp3 mp4 mpeg mpeg2 mpi mplayer mtp multilib musicbrainz ncurses nls nocd nptl ofa offensive ogg openal openexr opengl openmax openmp openssl openvg opus pam pax_kernel pcre pdf phonon pic pie plasma png policykit popcnt postgres pulseaudio python qml qt3support qt5 quicktime radeon rar raw readline ruby samba sasl schroedinger sdl seccomp session sharedmem smp sockets sound spell spice sse sse2 sse3 sse4a ssl ssp startup-notification svg syslog systemd sysvipc taglib tcpd theora threads tiff truetype udev unicode upnp upnp-av urandom usb v4l vaapi vcd vdpau vorbis vpx webp x264 xattr xcb xcomposite xft xine xinerama xmp xorg xpm xtpax xv xvid zeroconf zlib zsh-completion" 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="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="3dnow 3dnowext mmx mmxext popcnt sse sse2 sse3 sse4a" 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 keyboard mouse wacom" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en_GB en" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" QEMU_SOFTMMU_TARGETS="x86_64 i386" RUBY_TARGETS="ruby20 ruby21" USERLAND="GNU" VIDEO_CARDS="radeon r600" 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