I used psybnc for quite a while on x86. I recently migrated to an Intel EMT64 xeon based system and psybnc keeps crashing on it. It's not a hardened issue I belive as I can't read any pax details in dmeg. Here's the psybnc.log output nexus log # tail psybnc.log Sat Mar 3 15:33:41 :Listener created :0.0.0.0 port 23889 (SSL) Sat Mar 3 15:33:41 :psyBNC2.3.2-7-cBtITLdDMSNpE started (PID :15594) Sat Mar 3 15:33:41 :SSL initialized Sat Mar 3 15:33:41 :Loading all Users.. Sat Mar 3 15:33:41 :No Users found. Sat Mar 3 15:33:52 :connect from 158-13-ftth.onsnetstudenten.nl Sat Mar 3 15:33:52 :Accepted SSL-Connection from 158-13-ftth.onsnetstudenten.nl Sat Mar 3 15:33:57 :New User:oliver (oliver) added by oliver Sat Mar 3 15:33:57 :Program Context : src/p_blowfish.c/InitializeBlowfish Line 423 Sat Mar 3 15:33:57 :SEGMENT VIOLATION - Crashing nexus log # emerge --info Portage 2.1.2-r9 (hardened/amd64, gcc-3.4.6, glibc-2.3.6-r5, 2.6.18-hardened x86_64) ================================================================= System uname: 2.6.18-hardened x86_64 Intel(R) Xeon(TM) CPU 3.00GHz Gentoo Base System release 1.12.9 Timestamp of tree: Thu, 01 Mar 2007 18:30:01 +0000 dev-lang/python: 2.4.3-r4 dev-python/pycrypto: 2.0.1-r5 sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.60 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10 sys-devel/binutils: 2.16.1-r3 sys-devel/gcc-config: 1.3.14 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.17-r1 ACCEPT_KEYWORDS="amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-Os -march=nocona -pipe -fomit-frame-pointer" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /opt/glftpd/etc /opt/glftpd/ftp-data /var/bind" CONFIG_PROTECT_MASK="/etc/env.d /etc/gconf /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-Os -march=nocona -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks metadata-transfer parallel-fetch sandbox sfperms strict userpriv usersandbox" GENTOO_MIRRORS="ftp://vlaai.snt.utwente.nl/pub/os/linux/gentoo/ http://vlaai.snt.utwente.nl/pub/os/linux/gentoo/ http://ftp.uni-erlangen.de/pub/mirrors/gentoo" LINGUAS="en nl" MAKEOPTS="-j3" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="3dnow 7zip aac acpi aim amd64 apache2 apm audiofile avi bcmath berkdb bindist boundschecking bzip2 bzlib calendar cdr cli cross crypt ctype curl curlwrappers dba dedicated dio dvb dvd dvdr encode enscript exif fam fastcgi ffmpeg fftw flac flash foomatic ftp gd gif gnutls graphviz hardened icq idn imagemagick imap ipv6 jabber jpeg justify kerberos lesstif libwww lirc logrotate maildir mcal memlimit mhash midi mikmod mime mmap mng motif mozilla msn ncurses netpbm nls nocd nptl nptlonly ogg openal oscar pam pcre php pic png posix postgres ppds python quicktime readline samba sasl scanner sdl session shared sharedmem simplexml slang slp snmp sockets speex spell sqlite sse ssl svg sysfs szip tcpd theora tidy tiff tokenizer truetype unicode unzip usb vda vhosts videos vorbis x264 xinetd xml xmlrpc xorg xvid yahoo zip zlib" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route share shm softvol" ELIBC="glibc" INPUT_DEVICES="mouse keyboard" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en nl" USERLAND="GNU" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY Reproducible: Always Steps to Reproduce:
Attach a backtrace here and reopen then, thanks. http://www.gentoo.org/proj/en/qa/backtraces.xml
Created attachment 111934 [details] psybnc /etc/psybnc/psybnc.conf backtrace I used gdb -> attach to get the backtrace, as psybnc forks into the background. I emerged with: FEATURES="nostrip splitdebug" CFLAGS="-O2 -march=nocona -ggdb" emerge psybnc but to me it looks like i'm still missing the important debug symbols? I don't get any pax errors so it shouldn't be due to hardened profile.
I know i probably need a better backtrace, but need some help on obtaining that.
(In reply to comment #3) > I know i probably need a better backtrace, but need some help on obtaining > that. Eh, indeed... :) You should recompile openssl w/ debugging info as well, it seems to be crashing there anyway. Can you try it?
Created attachment 111941 [details] psybnc /etc/psybnc/psybnc.conf backtrace FEATURES="nostrip splitdebug" CFLAGS="-O2 -march=nocona -ggdb" emerge -av openssl USE="-ssl -ipv6" FEATURES="nostrip splitdebug" CFLAGS="-O2 -march=nocona -ggdb" emerge -av psybnc are the compile lines used to create this trace. Looks like the same to me. I disabled ssl, since i can use psybnc without it just fine and it removes the dependancy. I did as mentioned recompile openssl with gdb info, to no avail.
So, it doesn't segfault with USE="-ssl"?
It always segfaults, I'm sorry, I should have mentioned that. It stays up and is listening up until I have to enter the password in X-chat for example. After that it segfaults. I'll try one of the older ebuilds, see what happens there (the bins should be identical since it hasn't been updated since 2005 i belive).
Nearly identical issue on x86 too. Though here i can actually connect, it crashes not too long after (initiated by the user, e.g. trying to join a channel etc) When copying my old config over though, (and not connecting with an IRC client to it) it seems to connect to all configured networks and stay up. (Both on AMD64 as X86) Also here, it's a hardened system, but no pax errors in dmesg. 7of9 psybnc # emerge --info Portage 2.1.2-r9 (hardened/x86/2.6, gcc-3.4.6, glibc-2.3.6-r5, 2.6.18-hardened i686) ================================================================= System uname: 2.6.18-hardened i686 AMD Duron(TM)Processor Gentoo Base System release 1.12.9 Timestamp of tree: Tue, 06 Mar 2007 14:20:01 +0000 dev-java/java-config: 1.3.7, 2.0.31 dev-lang/python: 2.3.5-r3, 2.4.3-r4 dev-python/pycrypto: 2.0.1-r5 sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.60 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10 sys-devel/binutils: 2.16.1-r3 sys-devel/gcc-config: 1.3.14 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.17-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-Os -march=athlon-xp -pipe -fomit-frame-pointer" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /opt/glftpd/etc /opt/glftpd/ftp-data /usr/share/X11/xkb /var/bind" CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/java-config/vms/ /etc/revdep-rebuild /etc/splash /etc/terminfo" CXXFLAGS="-Os -march=athlon-xp -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks metadata-transfer parallel-fetch sandbox sfperms strict userpriv usersandbox" GENTOO_MIRRORS="http://ftp.snt.utwente.nl/pub/os/linux/gentoo ftp://ftp.snt.utwente.nl/pub/os/linux/gentoo http://vlaai.snt.ipv6.utwente.nl/pub/os/linux/gentoo/ ftp://vlaai.snt.ipv6.utwente.nl/pub/os/linux/gentoo/ ftp://mirror.scarlet-internet.nl/pub/gentoo ftp://mirror.nutsmaas.nl/gentoo/ http://gentoo.mirror.intouch.nl/gentoo/" LINGUAS="nl en de" MAKEOPTS="-j1" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.nl.gentoo.org/gentoo-portage" USE="3dnow 3dnowext X aac acpi aim alsa amr apache2 apm audiofile avi bcmath berkdb bindist bitmap-fonts browserplugin bzip2 bzlib cairo calendar cdr cli cross crypt ctype cups curl curlwrappers dba dbus dedicated dga dio dri dvb dvd dvdr encode exif exo fam fastcgi ffmpeg fftw flac flash foomatic ftp gd ggi gif gnutls gphoto2 gstreamer gtk gtk2 hal hardened icq imagemagick imap imlib imlib2 ipv6 jabber jpeg kerberos ldap lesstif libwww lirc lm_sensors logrotate lzo mad maildir mcal memlimit mhash midi mikmod mime mmap mmx mng mozbranding mozilla mp3 mp4 mp4live mpeg msn ncurses netpbm nls nocd nodrm ogg oggvorbis openal opengl oscar pam panel-plugin pcre php pic png posix postgres ppds quicktime readline sasl scanner sdl session shared sharedmem simplexml slang slp snmp sockets speex spell sse ssl startup-notification svg szip tcpd theora thumbnail thunar-vfs tidy tiff tokenizer truetype truetype-fonts type1-fonts unicode usb v4l v4l2 vda vhosts videos vorbis wma wmf x86 xcomposite xinerama xml xml2 xmlrpc xorg xpm xv xvid yahoo zip zlib" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route share shm softvol" ELIBC="glibc" INPUT_DEVICES="evdev keyboard mouse" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="nl en de" LIRC_DEVICES="uirt2_raw" USERLAND="GNU" VIDEO_CARDS="radeon ati fglrx v4l" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, PORTAGE_RSYNC_EXTRA_OPTS
The x86 issue may be unrelated. It stays up for a few hours, whether someone's using it or not, and segfaults. A little bit more usefull crashinfo there gives: Wed Mar 7 02:59:17 :Listener created :0.0.0.0 port 23998 <snip> Wed Mar 7 04:23:09 :Program Context : src/p_log.c/oldfile Line 315 Wed Mar 7 04:23:09 :SEGMENT VIOLATION - Crashing drwxr-xr-x 2 psybnc psybnc 592 Mar 7 02:59 log/ and there is a psybnc.log.old with data, so that shouldn't be it either.
when you attach in gdb and it caches the segv, can you issue these commands as well: i r x/8i $pc x/8x $sp also try to run pysbnc under valgrind, if there's some memory corruption earlier, not in the code where the actual segfault occurs, then valgrind will have a better chance to catch it.
Is this still a problem with the newest version in portage?
tbh I haven't checked any of the new versions. I'll try it again and see what happens sometime next week or so.
No new info for several months, and I'm not able to reproduce it on my machine. I'm closing this, reopen if needed.
