Since I upgraded to kde 4.10.2, kmail refuses to start. looking at strace output, the process seems stuck in polling fd=13: 234 poll([{fd=13, events=POLLIN}], 1, 4294967295) = 1 ([{fd=13, revents=POLLIN}]) 1234 read(13, "\1\0\0\0\0\0\0\0", 16) = 8 1234 poll([{fd=13, events=POLLIN}], 1, 4294967295 That turns out to be this: 13 -> anon_inode:[eventfd] a HUP singnal sent to kmail yelds to this result: QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave. QDBusConnection: session D-Bus connection created before QCoreApplication. Application may misbehave. unnamed app(1228): Communication problem with "kmail2" , it probably crashed. Error message was: "org.freedesktop.DBus.Error.NoReply" : " "Message did not receive a reply (timeout by message bus)" " Reproducible: Always Portage 2.2.0_alpha171 (default/linux/amd64/13.0/desktop/kde, gcc-4.7.2, glibc-2.17, 3.8.6 x86_64) ================================================================= System uname: Linux-3.8.6-x86_64-Intel-R-_Core-TM-_i5-3427U_CPU_@_1.80GHz-with-gentoo-2.2 KiB Mem: 8096968 total, 2865284 free KiB Swap: 8386556 total, 8385856 free Timestamp of tree: Mon, 08 Apr 2013 07:00:01 +0000 ld ld di GNU (GNU Binutils) 2.23.1 app-shells/bash: 4.2_p45 dev-java/java-config: 2.1.12-r1 dev-lang/python: 2.7.3-r3, 3.2.3-r2 dev-util/cmake: 2.8.10.2-r1 dev-util/pkgconfig: 0.28 sys-apps/baselayout: 2.2 sys-apps/openrc: 0.11.8 sys-apps/sandbox: 2.6-r1 sys-devel/autoconf: 2.13, 2.69 sys-devel/automake: 1.9.6-r3, 1.11.6, 1.12.6, 1.13.1 sys-devel/binutils: 2.23.1 sys-devel/gcc: 4.7.2-r1 sys-devel/gcc-config: 1.8 sys-devel/libtool: 2.4.2 sys-devel/make: 3.82-r4 sys-kernel/linux-headers: 3.8 (virtual/os-headers) sys-libs/glibc: 2.17 Repositories: gentoo overlay Installed sets: @kde ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -mtune=native -O2 -pipe -ftree-loop-linear -floop-interchange -floop-strip-mine -fgraphite-identity -floop-block" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/polkit-1/actions" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-march=native -mtune=native -O2 -pipe -ftree-loop-linear -floop-interchange -floop-strip-mine -fgraphite-identity -floop-block" DISTDIR="/usr/portage/distfiles" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="it_IT.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j4" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/overlay" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="3dnow 3dnowext 3dnowprefetch X \ a52 aac aalib acl acpi aim alsa amd64 apng ares asf ati audio audiofile avahi bash-completion berkdb bidi bl bluetooth branding bri bzip2 cairo caps ccdda cdda cdr cjk cli consolekit cracklib crypt cups curl cxx dba dbus declarative device-mapper dga divx divx4linux dparanoia dri dts dv dvb dvd dvdr dvdread eap-sim edl embedded emboss encode ethereal exif expat faad fam fame fbcon ffmpeg fftw firefox flac force-cgi-redirect fortran ftp gallium garmin gd gdbm gif gimp gmedia gmp gnutls gphoto2 gpm gps gsm gtk h264 h323 iconv icq icu idn ifp ilbc imagemagick imap innodb ipod iproute2 ipv6 ithreads jabber jack java javascript joystick jpeg kde kipi kontact kvm lastfm lcms ldap libcaca libnotify libvirtd live lm_sensors lua lvm lxc lzma lzo mad maildir matroska mbox mdnsresponder-compat mhash mime mjpeg mmap mmx mmxext mng modules mozdevelop mozilla mp3 mp4 mpeg msn mtp mudflap multilib mysql ncurses nepomuk network networkmanager new-hpcups nfsv4 njb nls nptl nptlonly nsplugin offensive ofx ogg oggvorbis ogm openal openexr opengl openmp oscar pam pango parted pcap pcre pdf phonon php plasma plotutils png policykit ppds qemu qt3support qt4 readline rtc ruby samba sasl sdl semantic-desktop session sha512 sip slang slp smartcard sndfile snmp sox speex spell srt sse sse2 ssh ssl ssse3 startup-notification svg symlink tcltk tcpd theora threads tiff tk tremor truetype udev udisks unicode upower usb utempter v4l v4l2 vaapi vcd vde vhosts video videos vim-syntax virt-network virtualbox vorbis wav webkit wifi wimax wmf wmp wps wxwidgets wxwindows x264 xanim xattr xcb xcomposite xen xface xft xine xinerama xml xosd xpm xscreensaver xsl xulrunner xv xvid zlib zpm" 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" 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="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" 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="evdev synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="it en" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-3" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_2" QEMU_SOFTMMU_TARGETS="i386 x86_64" QEMU_USER_TARGETS="i386 x86_64" RUBY_TARGETS="ruby18 ruby19" USERLAND="GNU" VIDEO_CARDS="intel 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, USE_PYTHON
Could you try with a sane CFLAGS environment?
Already done, with "-march=native -mtune=native -O2 -pipe" that worked for every version of kmail so far. Same result: two kmail process but nothing shows up 6183 ? S 0:00 /usr/bin/kmail -caption KMail 6184 ? Rl 1:12 /usr/bin/kmail -caption KMail
Please submit a bug at bugs.kde.org and link to it here; I fear there is not much that we can do.
Done: https://bugs.kde.org/show_bug.cgi?id=318093
The problem turned out to be a clash with glibc. I moved from glibc 2.16 to 2.17 and this broke in some way qtwebkit, used by many apps. Here the gdb thread status: The problem turned out to be a clash with glibc. I moved from glibc 2.16 to 2.17 and this broke in some way qtwebkit, used by many apps. Here the gdb thread status: Id Target Id Frame 3 Thread 0x7f909cd1a700 (LWP 9511) "kmail" 0x00007f90b63efcfc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 2 Thread 0x7f909c519700 (LWP 9512) "QThread" 0x00007f90b85e369d in poll () from /lib64/libc.so.6 * 1 Thread 0x7f90bb273780 (LWP 5766) "kmail" 0x00007f90ab78a1b9 in ?? () from /usr/lib64/qt4/libQtWebKit.so.4 recompiling qtwebkit solved the issue
