I'm running a stable (x86) system and have recently switched to profile 2007.0-desktop. Several default USE flags have changed, and so I re-emerged the affected packages. Now it seems that all applications that use libXrender imnedialtely crash when started. xclock is probably the easiest example. I have already tried to solve the problem by re-emerging all packages that xclock depends on via "emerge --emptytree xclock" but xclock still crashes. Reproducible: Always Steps to Reproduce: just run xclock Actual Results: Segmentation fault Expected Results: xclock should not crash # etc-update Scanning Configuration files... Exiting: Nothing left to do; exiting. :) # emerge --ask --verbose --update --deep world These are the packages that would be merged, in order: Calculating world dependencies... done! Total: 0 packages, Size of downloads: 0 kB Nothing to merge; would you like to auto-clean packages? [Yes/No] >>> Auto-cleaning packages... >>> No outdated packages were found on your system. * GNU info directory index is up-to-date. # emerge --ask --verbose --update --deep --newuse world These are the packages that would be merged, in order: Calculating world dependencies... done! Total: 0 packages, Size of downloads: 0 kB Nothing to merge; would you like to auto-clean packages? [Yes/No] >>> Auto-cleaning packages... >>> No outdated packages were found on your system. * GNU info directory index is up-to-date. # emerge --ask --verbose --depclean *** WARNING *** Depclean may break link level dependencies. Thus, it is *** WARNING *** recommended to use a tool such as `revdep-rebuild` (from *** WARNING *** app-portage/gentoolkit) in order to detect such breakage. *** WARNING *** *** WARNING *** Also study the list of packages to be cleaned for any obvious *** WARNING *** mistakes. Packages that are part of the world set will always *** WARNING *** be kept. They can be manually added to this set with *** WARNING *** `emerge --noreplace <atom>`. Packages that are listed in *** WARNING *** package.provided (see portage(5)) will be removed by *** WARNING *** depclean, even if they are part of the world set. *** WARNING *** *** WARNING *** As a safety measure, depclean will not remove any packages *** WARNING *** unless *all* required dependencies have been resolved. As a *** WARNING *** consequence, it is often necessary to run *** WARNING *** `emerge --update --newuse --deep world` prior to depclean. Calculating dependencies... done! Packages installed: 1315 Packages in world: 803 Packages in system: 56 Unique package names: 1315 Required packages: 1315 Number removed: 0 * GNU info directory index is up-to-date. # revdep-rebuild -- --ask Configuring search environment for revdep-rebuild Checking reverse dependencies... Packages containing binaries and libraries broken by a package update will be emerged. Collecting system binaries and libraries... done. (/root/.revdep-rebuild.1_files) Collecting complete LD_LIBRARY_PATH... done. (/root/.revdep-rebuild.2_ldpath) Checking dynamic linking consistency... done. (/root/.revdep-rebuild.3_rebuild) Assigning files to ebuilds... Nothing to rebuild Evaluating package order... done. (/root/.revdep-rebuild.5_order) Dynamic linking on your system is consistent... All done.
# emerge --info Portage 2.1.2.2 (default-linux/x86/2007.0/desktop, gcc-4.1.1, glibc-2.5-r2, 2.6.20.11n i686) ================================================================= System uname: 2.6.20.11n i686 AMD Athlon(tm) XP 1600+ Gentoo Base System release 1.12.9 Timestamp of tree: Thu, 10 May 2007 19:29:01 +0000 distcc 2.18.3 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disabled] ccache version 2.4 [enabled] dev-java/java-config: 1.3.7, 2.0.31-r5 dev-lang/python: 2.3.5-r3, 2.4.4 dev-python/pycrypto: 2.0.1-r5 dev-util/ccache: 2.4-r7 sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.61 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: 1.3.16 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.17-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-march=athlon-xp -O2 -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config" CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/java-config/vms/ /etc/php/apache1-php5/ext-active/ /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/terminfo /etc/texmf/web2c" CXXFLAGS="-march=athlon-xp -O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="buildpkg ccache distlocks metadata-transfer sandbox sfperms strict userpriv usersandbox" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo" LANG="de_DE@euro" LINGUAS="de" MAKEOPTS="-j2" 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 --filter=H_**/files/digest-*" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="X acl acpi alsa apache2 arts bash-completion berkdb bitmap-fonts bzip2 cairo cdr cli cracklib crypt cups dbus dri dvd dvdr dvdread eds emboss encode esd evo fam firefox flac fortran gdbm gif gnome gstreamer gtk hal iconv ipv6 isdnlog java jpeg kde kerberos ldap libg++ mad midi mikmod mp3 mpeg mysql ncurses nls nptl nptlonly ogg opengl oss pam pcre pdf perl png postgres pppd python qt3 qt3support qt4 quicktime readline reflection samba sdl session spell spl sqlite ssl svg tcpd tiff truetype truetype-fonts type1-fonts unicode vorbis win32codecs x86 xml xorg xv zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1 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 mulaw multi null plug rate route share shm softvol" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="de" USERLAND="GNU" VIDEO_CARDS="apm ark ati chips cirrus cyrix dummy fbdev glint i128 i740 i810 imstt mga neomagic nsc nv rendition s3 s3virge savage siliconmotion sis sisusb tdfx tga trident tseng v4l vesa vga via vmware voodoo" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, LDFLAGS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
When I run xclock through gdb I get $ gdb xclock GNU gdb 6.6 Copyright (C) 2006 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i686-pc-linux-gnu"... (no debugging symbols found) Using host libthread_db library "/lib/libthread_db.so.1". (gdb) run Starting program: /usr/bin/xclock (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) Program received signal SIGSEGV, Segmentation fault. 0xb7dc5789 in XftDrawSrcPicture () from /usr/lib/libXft.so.2 (gdb) quit The program is running. Exit anyway? (y or n) y
When I run pidgin through gdb I get $ gdb pidgin GNU gdb 6.6 Copyright (C) 2006 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i686-pc-linux-gnu"... (no debugging symbols found) Using host libthread_db library "/lib/libthread_db.so.1". (gdb) run Starting program: /usr/bin/pidgin (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) [Thread debugging using libthread_db enabled] [New Thread -1221089088 (LWP 20664)] Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -1221089088 (LWP 20664)] 0xb74695b9 in XRenderCreatePicture () from /usr/lib/libXrender.so.1 (gdb) (gdb) quit The program is running. Exit anyway? (y or n) y
Sorry, but this gdb output is not useful. See http://www.gentoo.org/proj/en/qa/backtraces.xml on hints how to produce a more useful one.
OK, I have added "-ggdb" to my CFLAGS and "splitdebug" to FEATURES. After that I've issued the following commands: emerge --emptytree system emerge --emptytree --oneshot xclock Here comes the requested backtrace: $ gdb /usr/bin/xclock GNU gdb 6.6 Copyright (C) 2006 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i686-pc-linux-gnu"... Using host libthread_db library "/lib/libthread_db.so.1". (gdb) run Starting program: /usr/bin/xclock Program received signal SIGSEGV, Segmentation fault. 0xb7d26789 in XftDrawSrcPicture (draw=0x8071ae0, color=0x8066a84) at xftdraw.c:354 354 xftdraw.c: No such file or directory. in xftdraw.c (gdb) bt #0 0xb7d26789 in XftDrawSrcPicture (draw=0x8071ae0, color=0x8066a84) at xftdraw.c:354 #1 0x0804ac13 in RenderPrepare (w=0x8066620, color=0x8066a84) at Clock.c:769 #2 0x0804b595 in DrawClockFace (w=0x8066620) at Clock.c:995 #3 0x0804be2a in clock_tic (client_data=0x8066620, id=0x0) at Clock.c:1407 #4 0xb7d6d263 in SendExposureEvent (event=0xbffaf2fc, widget=0x8066620, pd=0x805e534) at Event.c:1120 #5 0xb7d6d727 in XtDispatchEventToWidget (widget=0x8066620, event=0xbffaf2fc) at Event.c:1020 #6 0xb7d6dddf in _XtDefaultDispatcher (event=0xbffaf2fc) at Event.c:1335 #7 0xb7d6ce3a in XtDispatchEvent (event=0xbffaf2fc) at Event.c:1415 #8 0xb7d6cfd4 in XtAppMainLoop (app=0x8055a70) at Event.c:1552 #9 0x0804d376 in main (argc=134543934, argv=0x0) at xclock.c:211 #10 0xb7b0883c in __libc_start_main (main=0x804d0a0 <main>, argc=1, ubp_av=0xbffaf464, init=0x804d530 <__libc_csu_init>, fini=0x804d520 <__libc_csu_fini>, rtld_fini=0xb7f35ee0 <_dl_fini>, stack_end=0xbffaf45c) at libc-start.c:238 #11 0x08049b61 in _start () (gdb) quit The program is running. Exit anyway? (y or n) y
Have you tried 'revdep-rebuild'? When you rebuilt, did you disable ccache?
revdep-rebuild says "Dynamic linking on your system is consistent." So I don't know which libraries need to be rebuilt let alone the correct rebuild sequence. I have already tried emerge -e system emerge -e xlock but that hasn't solved the problem. My system ist headless and I'm running a VNC server (net-misc/vnc-4.1.2-r2) instead. Because of that I have also tried emerge -e vnc but this hasn't solved the problem either. All those apps that immediately crash inside the vnc session work fine when run with X11 forwarding.
I didn't disable ccache but cleared the entire cache prior to starting the rebuild process.
It have now figured out that the problem seems to be related to the colour depth of the vnc session. When I stick to a depth of 16 bits (instead of 24 bits), my apps no longer crash. Though I'm glad that I have found a workaround to my problem, I still consider this a bug because vnc sessions with a colour depth of 24 bits have worked ever since.
Hello, I have the same problems. I also tried to run vncserver with depth 16bit and it works.
Hi, can either of you still reproduce this bug with newer versions of the libraries and of vnc? Please don't hesitate to reopen this bug if you can still reproduce this on an updated system. Thanks
