Mythbackend is segfaulting with: MythSocket(822bce8:28): readStringList: Error, timed out after 30000 ms. Reproducible: Always Steps to Reproduce: 1. # mythbackend 2. Do some stuff in mythfrontend (watch TV, view recordings, view upcoming recordings list, view program finder,etc etc. 3. Actual Results: Mythbackend segfaults. Expected Results: Mythbackend should not segfault camille ~ # emerge --info Portage 2.1.10.11 (default/linux/x86/10.0/desktop, gcc-4.4.5, glibc-2.12.2-r0, 2.6.36-gentoo-r5 i686) ================================================================= System uname: Linux-2.6.36-gentoo-r5-i686-with-gentoo-2.0.3 Timestamp of tree: Wed, 26 Oct 2011 04:30:01 +0000 distcc 3.1 i686-pc-linux-gnu [disabled] app-shells/bash: 4.1_p9 dev-java/java-config: 1.3.7-r1, 2.1.11-r3 dev-lang/python: 2.5.4-r4, 2.6.6-r2, 2.7.2-r3, 3.1.4-r3 dev-util/cmake: 2.8.4-r1 dev-util/pkgconfig: 0.26 sys-apps/baselayout: 2.0.3 sys-apps/openrc: 0.8.3-r1 sys-apps/sandbox: 2.4 sys-devel/autoconf: 2.13, 2.68 sys-devel/automake: 1.5-r1, 1.7.9-r2, 1.8.5-r4, 1.9.6-r3, 1.10.3, 1.11.1 sys-devel/binutils: 2.20.1-r1 sys-devel/gcc: 4.3.4, 4.4.5, 4.5.3-r1 sys-devel/gcc-config: 1.4.1-r1 sys-devel/libtool: 2.4-r1 sys-devel/make: 3.82-r1 sys-kernel/linux-headers: 2.6.39 (virtual/os-headers) sys-libs/glibc: 2.12.2 Repositories: gentoo x-portage ACCEPT_KEYWORDS="x86" ACCEPT_LICENSE="* -@EULA dlj-1.1" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=i686 -fomit-frame-pointer" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /var/bind" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/env.d/java/ /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 /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-O2 -march=i686 -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" EMERGE_DEFAULT_OPTS="--with-bdeps y" FEATURES="assume-digests binpkg-logs buildpkg distlocks ebuild-locks fixlafiles fixpackages news nostrip parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" FFLAGS="" GENTOO_MIRRORS="http://mirror.datapipe.net/gentoo" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="en fr es" MAKEOPTS="-j1" PKGDIR="/usr/portage/packages/camille" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_EXTRA_OPTS="--human-readable" 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" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="X a52 aac acl acpi additions alsa apache2 arts asterisk audiofile automount avi bash-completion berkdb bind-mysql bitmap-fonts bluetooth branding browserplugin bzip2 cairo candy cdda cdr cgi cli consolekit cracklib crypt ctype cups cxx dba dbus declarative divx4linux doc dri dts dvb dvd dvdr dvdread emboss encode evo examples exif expat f77 fam ffmpeg flac flash flashblock foomaticdb fortran ftp gallium gdbm gdu gentoo gif glut gnome gphoto2 gpm gstreamer gtk gtk2 guile hal iconv imap imlib ipv6 ithreads ivtv jack jack-tempfs jadetex java jikes joystick jpeg kde lcms ldap lib libclamav libg++ libnotify libwww lirc mad mikmod mmx mmx2 mmxext mng mode-owner modules moonlight motif mp3 mp4 mpeg mplayer mpm-leader mudflap mysql mythtv nas nautilus ncurses new-login nls nntp nptl nptlonly nsplugin offensive ogg oggvorbis opengl openmp oss pam pango pcre pdf perl php png policykit portaudio ppds pppd python qt qt3support qt4 quicktime readline ruby sasl sdl seamonkey semantic-desktop session slp snmp spell sql ssl startup-notification static-libs svg svga sysfs syslog tcl tcltk tcpd threads tidy tiff truetype udev unicode usb userlocales v4l v4l2 vanilla vhosts vorbis win32codecs x264 x86 xcb xml xml2 xmms xorg xulrunner xv xvid zaptel zlib" ALSA_CARDS="hda-intel" 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 auth_digest authn_anon authn_dbd 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 dbd deflate dir disk_cache env expires ext_filter file_cache filter headers ident imagemap include info log_config logio mem_cache mime mime_magic negotiation proxy proxy_ajp proxy_balancer proxy_connect proxy_http rewrite setenvif so speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan 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 keyboard mouse" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en fr es" PHP_TARGETS="php5-3" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="i915 intel mga savage sis tdfx" 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, INSTALL_MASK, LANG, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS
Here is the output of mythbackend when run at the terminal: camille ~ # mythbackend 2011-10-26 09:54:50.132 mythbackend version: branches/release-0-23-fixes [27077] www.mythtv.org 2011-10-26 09:54:50.132 Using runtime prefix = /usr 2011-10-26 09:54:50.132 Using configuration directory = /root/.mythtv 2011-10-26 09:54:50.133 Unable to read configuration file mysql.txt 2011-10-26 09:54:50.133 Empty LocalHostName. 2011-10-26 09:54:50.133 Using localhost value of camille 2011-10-26 09:54:50.142 New DB connection, total: 1 2011-10-26 09:54:50.150 Connected to database 'mythconverg' at host: localhost 2011-10-26 09:54:50.151 Closing DB connection named 'DBManager0' 2011-10-26 09:54:50.152 Connected to database 'mythconverg' at host: localhost 2011-10-26 09:54:50.163 Current MythTV Schema Version (DBSchemaVer): 1254 2011-10-26 09:54:50.180 MythBackend: Running as a slave backend. 2011-10-26 09:54:50.188 mythbackend: MythBackend started as a slave backend 2011-10-26 09:54:50.190 New DB connection, total: 2 2011-10-26 09:54:50.190 Connected to database 'mythconverg' at host: localhost 2011-10-26 09:54:50.195 New DB connection, total: 3 2011-10-26 09:54:50.196 Connected to database 'mythconverg' at host: localhost 2011-10-26 09:54:50.297 MediaServer:: Loopback address specified - 127.0.0.1. Disabling UPnP 2011-10-26 09:54:50.297 Main::Registering HttpStatus Extension 2011-10-26 09:54:50.297 Enabled verbose msgs: important general 2011-10-26 09:54:51.306 Connecting to master server: 192.168.2.3:6543 2011-10-26 09:54:51.306 Connected successfully 2011-10-26 09:55:00.286 mythbackend: Running housekeeping thread 2011-10-26 09:55:21.314 MythSocket(8219858:23): readStringList: Error, timed out after 30000 ms. 2011-10-26 09:55:21.314 MainServer, Error: Failed to open master server socket, timeout 2011-10-26 09:55:21.315 adding: camille as a slave backend server 2011-10-26 09:55:21.316 MainServer, Warning: Unknown socket closing MythSocket(0x821ee48) 2011-10-26 09:55:21.321 MainServer, Warning: Unknown socket closing MythSocket(0x8226150) 2011-10-26 09:55:21.321 MainServer, Warning: Unknown socket closing MythSocket(0x8226150) 2011-10-26 09:55:21.321 MainServer, Warning: Unknown socket closing MythSocket(0x821a8b0) 2011-10-26 09:55:21.321 MainServer, Warning: Unknown socket closing MythSocket(0x821a8b0) 2011-10-26 09:55:21.323 MainServer::ANN Monitor 2011-10-26 09:55:21.323 adding: camille as a client (events: 0) 2011-10-26 09:55:21.324 MainServer::ANN Monitor 2011-10-26 09:55:21.324 adding: camille as a client (events: 1) 2011-10-26 09:55:21.324 MythSocket(821ee48:-1): writeStringList: Error, socket went unconnected. We wrote 0 of 10 bytes with 1 errors 2011-10-26 09:55:21.334 MythSocket(8226150:-1): writeStringList: Error, socket went unconnected. We wrote 0 of 24 bytes with 1 errors 2011-10-26 09:55:21.334 MythSocket(821a8b0:-1): writeStringList: Error, socket went unconnected. We wrote 0 of 24 bytes with 1 errors 2011-10-26 09:55:22.324 Connecting to master server: 192.168.2.3:6543 2011-10-26 09:55:22.324 Connected successfully 2011-10-26 09:55:52.344 MythSocket(822bce8:28): readStringList: Error, timed out after 30000 ms. Segmentation fault
It looks like it may be related to bad configuration. However, can you get a backtrace from the actual crash? http://www.gentoo.org/proj/en/qa/backtraces.xml
Will I need to to rebuild my entire system with the -ggdb flag, or just mythtv for the backtrace?
Nevermind. It was a mysql problem. I am going to rebuild my entire world with the -ggdb flag once my current situation with MythTV is resolved...
