It seems like cronie segfaults regularly if it gets recompiled, but is not restarted, for example: Aug 12 13:50:01 tau kernel: crond[25078]: segfault at 968 ip 00007fc32eea6cee sp 00007fffd0156200 error 4 in libpthread-2.20.so[7fc32eea0000+16000] Reproducible: Didn't try Steps to Reproduce: 1. Emerge cronie (or whatever provides pthreads, not entirely sure) Actual Results: crond segfaults regularly. Expected Results: I need my cron running. # emerge --info cronie Portage 2.2.20 (python 2.7.9-final-0, default/linux/amd64/13.0, gcc-4.8.4, glibc-2.20-r2, 3.14.31-gentoo x86_64) ================================================================= System Settings ================================================================= System uname: Linux-3.14.31-gentoo-x86_64-Intel-R-_Xeon-R-_CPU_E5-2643_0_@_3.30GHz-with-gentoo-2.2 KiB Mem: 32879440 total, 4501016 free KiB Swap: 33554428 total, 33421428 free Timestamp of repository gentoo: Fri, 07 Aug 2015 21:30:01 +0000 sh bash 4.3_p33-r2 ld GNU ld (Gentoo 2.24 p1.4) 2.24 ccache version 3.1.9 [disabled] app-shells/bash: 4.3_p33-r2::gentoo dev-java/java-config: 2.2.0::gentoo dev-lang/perl: 5.20.2::gentoo dev-lang/python: 2.7.9-r1::gentoo, 3.2.5-r6::gentoo, 3.3.5-r1::gentoo, 3.4.1::gentoo dev-util/ccache: 3.1.9-r4::gentoo dev-util/cmake: 3.2.2::gentoo sys-apps/baselayout: 2.2::gentoo sys-apps/openrc: 0.17::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, 1.15::gentoo sys-devel/binutils: 2.24-r3::gentoo sys-devel/gcc: 4.6.3::gentoo, 4.7.3-r1::gentoo, 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: 3.18::gentoo (virtual/os-headers) sys-libs/glibc: 2.20-r2::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 haskell location: /nfs/oalportage/layman/haskell masters: gentoo priority: 0 science location: /nfs/oalportage/layman/science masters: gentoo priority: 1 oal location: /nfs/oalportage masters: gentoo priority: 2 Installed sets: @oal, @oalcore, @oalserver, @system, @tau 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 /etc/stunnel/stunnel.conf /usr/lib64/libreoffice/program/sofficerc /usr/share/config /usr/share/gnupg/qualified.txt /var/lib/hsqldb /var/yp /var/yp/Makefile" CONFIG_PROTECT_MASK="/etc/X11 /etc/ca-certificates.conf /etc/dbus-1 /etc/dconf /etc/env.d /etc/fonts /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/hotplug /etc/init.d /etc/inputrc /etc/php /etc/php/apache2-php5.3/ext-active/ /etc/php/apache2-php5.5/ext-active/ /etc/php/apache2-php5.6/ext-active/ /etc/php/cgi-php5.3/ext-active/ /etc/php/cgi-php5.5/ext-active/ /etc/php/cgi-php5.6/ext-active/ /etc/php/cli-php5.3/ext-active/ /etc/php/cli-php5.5/ext-active/ /etc/php/cli-php5.6/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/services /etc/sound /etc/sysstat /etc/terminfo /etc/texmf /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c /etc/udev /etc/xdg /usr/share/config" CXXFLAGS="-march=native -O2 -pipe" DISTDIR="/nfs/oalportage/distfiles" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs candy config-protect-if-modified distlocks ebuild-locks fail-clean fixlafiles merge-sync news parallel-fetch preserve-libs sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://ftp.ucsb.edu/pub/mirrors/linux/gentoo/ http://mirror.usu.edu/mirrors/gentoo/ http://mirror.mcs.anl.gob/pub/gentoo http://distfiles.gentoo.org ftp://mirror.iawnet.sandia.gov/pub/gentoo/" LANG="en_US" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j7" 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="/var/tmp" USE="X aac acl acpi alsa amd64 arts bash-completion berkdb bzip2 cairo calendar cli consolekit cpudetection cracklib crypt ctype cups curl cvs cxx dbus dri dvi emacs encode exif expat ffmpeg fftw finger flac flatfile fltk fontforge fortran ftp fuse gd gdbm gif git glib gmp gnutls go graphics graphviz gs gstreamer gtk gtk2 gudev gzip hal hscolour iconv icu imagemagick imap imlib java jbig jpeg jpeg2k kde kde4 lame lapack latex lm_sensors log4j lzo md5sum mjpeg mmx mmxext mng modules motif mp3 mpeg mpi multilib mysql ncurses nis nls nptl nsplugin ogg openexr opengl openmp opus pam pcre pdf phonon plotutils png pnm policykit postgres postscript python python_abis_3.2 qt3support qt4 quicktime rar readline real ruby samba server session simpleXML soap sockets spell sql sqlite sse sse2 ssl subversion svg tcl tcpd tga threads tiff tinfo tk tokenizer toolkit-scroll-bars truetype udisks unfpack unicode usb vala vim-syntax vim-with-x vorbis webkit win32codecs wmf wxwindows x264 xcomposite xetex xml xmlrps xpm xprint xsl xvid zip zlib" ABI_X86="64 32" 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="mmx mmxext sse sse2" CURL_SSL="nss" 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="efi-64" INPUT_DEVICES="evdev keyboard mouse" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en en_US" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" RUBY_TARGETS="ruby19 ruby20 ruby21" USERLAND="GNU" VIDEO_CARDS="nvidia" 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, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON ================================================================= Package Settings ================================================================= sys-process/cronie-1.5.0::gentoo was built with the following: USE="inotify pam -anacron (-selinux)" ABI_X86="64"
You really need to more clearly define the steps to reproduce this. What exactly did you do before crond started segfaulting? Was it an upgrade? Between what versions? In any case, ebuilds do not typically restart daemons. That becomes especially tricky since we now support multiple init systems. I think the best you are going to get here is a pkg_posinst message.
I apologize, I can't describe the steps well because the updates on this machine had been stuck for a little while. Then I fixed the issues preventing a successful emerge run and just did an "emerge -vuND world" (which updated many many packages). But if you google for cronie segfault libpthread then this seems to not be uncommon, and restarting the daemon is the default recommendation (heck, Debian does that by default even). There's no abstractions for the multiple init systems yet? That seems a pitty. But yeah, a notice would be a big improvement IMHO.
commit b96a43b993a5bd442127e2e5d495fbbdc7a1e674 Author: Lars Wendler <polynomial-c@gentoo.org> Date: Sun Aug 30 15:09:46 2015 sys-process/cronie: Warn on update to restart daemon (bug #557406). Package-Manager: portage-2.2.20.1 https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=b96a43b993a5bd442127e2e5d495fbbdc7a1e674