I have IPv6 enabled on my Server and also have an IPv6 address assigned by my provider. Whenever I reboot my system the apache2 processes are zombies and netstat -tulpen shows that apache2 has been binded to [::]:80 and [::]:443 tcp6 0 0 :::80 :::* LISTEN 0 4278 21282/apache2 tcp6 0 0 :::443 :::* LISTEN 0 4278 21282/apache2 in vhost.d I have a special config file where I tell apache on which ports it should listen with: Listen 80 Listen 443 As far as I understood http://httpd.apache.org/docs/2.2/bind.html it should be possible to handle IPv4 connections via the IPv6 socket, which would mean that the above settings are fine and Apache should just work fine. Reproducible: Always Steps to Reproduce: 1. emerge system with IPv6 use flag 2. set Listen 80 3. reboot Actual Results: Apache processes are zombies Service is not reachable. Expected Results: Reachable Service Stopping Apache2, Killing all processes and starting Apache2 again seems to fix the problem but then the CPU load for request is really high! Always at 100%, before it was around 20%. Even setting Listen to <IPv4/IPv6>:80 does not solve the Problem and on reboot Apache starts with zombie processes. Portage 2.1.9.42 (hardened/linux/amd64, gcc-4.4.5, libc-0-r0, 2.6.38-hardened-r6 x86_64) ================================================================= System uname: Linux-2.6.38-hardened-r6-x86_64-Intel-R-_Core-TM-_i7_CPU_920_@_2.67GHz-with-gentoo-2.0.2 Timestamp of tree: Mon, 13 Jun 2011 14:45:01 +0000 app-shells/bash: 4.1_p9 dev-lang/python: 2.6.6-r2, 2.7.1-r1, 3.1.3-r1 dev-util/cmake: 2.8.4-r1 sys-apps/baselayout: 2.0.2 sys-apps/openrc: 0.8.2-r1 sys-apps/sandbox: 2.4 sys-devel/autoconf: 2.65-r1 sys-devel/automake: 1.10.3, 1.11.1 sys-devel/binutils: 2.20.1-r1 sys-devel/gcc: 4.4.5 sys-devel/gcc-config: 1.4.1-r1 sys-devel/libtool: 2.2.10 sys-devel/make: 3.82 sys-kernel/linux-headers: 2.6.36.1 sys-libs/glibc: 2.12.2 virtual/os-headers: 0 ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -mtune=generic -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.3/ext-active/ /etc/php/cgi-php5.3/ext-active/ /etc/php/cli-php5.3/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-march=native -mtune=generic -O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests binpkg-logs distlocks fixlafiles fixpackages news parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" FFLAGS="" GENTOO_MIRRORS="http://ftp.uni-erlangen.de/pub/mirrors/gentoo http://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/ http://mirror.netcologne.de/gentoo/ " LANG="de_DE.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="de" MAKEOPTS="-j9" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://rsync.de.gentoo.org/gentoo-portage" USE="acl amd64 apache2 bzip2 cli cracklib crypt cups cxx dri gdbm gpm hardened iconv ipv6 jpeg justify mmx modules mudflap multilib mysql ncurses nls nptl nptlonly openmp pam pcre perl png pppd python readline session sse sse2 ssl subversion sysfs tcpd truetype unicode urandom xorg zlib" 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" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="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 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" APACHE2_MPMS="itk" CALLIGRA_FEATURES="braindump flow karbon kexi kpresenter krita tables words" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" 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 ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="de" PHP_TARGETS="php5-3" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="fbdev glint intel mach64 mga neomagic nouveau nv r128 radeon savage sis tdfx trident vesa via vmware dummy v4l" 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, PORTDIR_OVERLAY
Benjamin, thank you for report. Could you test, is this issue still present in 2.2.20?
Also what do you mean by zombies? Readink link you've provided I'm not sure we need to provide such option by default as linux can cope with really large number of sockets and personally I don't see the reason to enable this option by default. If you wish you may try to enable that ./configure switch localy by putting EXTRA_ECONF="--disable-v4-mapped" into /etc/portage/env/www-servers/apache . That said I need more information from you to debug this problem further and in addition to question to comment 1 tell me please, do you have parallel startup enabled? What network configuration do you have? Closing as NEEDINFO for now.
