Bug 496332 – dev-util/meld - meld: ImportError: This platform lacks a functioning sem_open implementation, therefore, the required synchronization primitives needed will not function, see issue 3770.

• Status: RESOLVED DUPLICATE of bug 496328
• Product: Gentoo Linux

[Description Joseph 2013-12-29 00:28:22 UTC]

I just upgraded my system and "meld" as well.
I'm using "cfg-update -u" to compare files that did change utilizing meld

When I try to compare two file as root using meld I get: 

meld /etc/ddclient/ddclient.conf /etc/ddclient/._cfg0000_ddclient.conf
Traceback (most recent call last):
  File "/usr/bin/meld", line 154, in <module>
    main()
  File "/usr/bin/meld", line 136, in main
    import meld.meldapp
  File "/usr/lib64/meld/meld/meldapp.py", line 218, in <module>
    import filediff
  File "/usr/lib64/meld/meld/filediff.py", line 60, in <module>
    process_pool = multiprocessing.Pool(None, init_worker, maxtasksperchild=1)
  File "/usr/lib64/python2.7/multiprocessing/__init__.py", line 232, in Pool
    return Pool(processes, initializer, initargs, maxtasksperchild)
  File "/usr/lib64/python2.7/multiprocessing/pool.py", line 138, in __init__
    self._setup_queues()
  File "/usr/lib64/python2.7/multiprocessing/pool.py", line 232, in _setup_queues
    from .queues import SimpleQueue
  File "/usr/lib64/python2.7/multiprocessing/queues.py", line 48, in <module>
    from multiprocessing.synchronize import Lock, BoundedSemaphore, Semaphore, Condition
  File "/usr/lib64/python2.7/multiprocessing/synchronize.py", line 59, in <module>
    " function, see issue 3770.")
ImportError: This platform lacks a functioning sem_open implementation, therefore, the required synchronization primitives needed will not function, see issue 3770.

Both versions: 1.7.0 and 1.8.2 producing the same results

Reproducible: Always




Portage 2.2.7 (default/linux/amd64/13.0/desktop, gcc-4.7.3, glibc-2.16.0, 3.10.7-gentoo-r1 x86_64)
=================================================================
System uname: Linux-3.10.7-gentoo-r1-x86_64-AMD_FX-tm-8150_Eight-Core_Processor-with-gentoo-2.2
KiB Mem:     8093580 total,   6321828 free
KiB Swap:    8757244 total,   8757244 free
Timestamp of tree: Mon, 23 Dec 2013 17:00:01 +0000
ld GNU ld (GNU Binutils) 2.23.2
app-shells/bash:          4.2_p45
dev-java/java-config:     2.1.12-r1
dev-lang/python:          2.7.5-r3, 3.1.5-r1, 3.3.2-r2
dev-util/cmake:           2.8.11.2
dev-util/pkgconfig:       0.28
sys-apps/baselayout:      2.2
sys-apps/openrc:          0.12.4
sys-apps/sandbox:         2.6-r1
sys-devel/autoconf:       2.13, 2.69
sys-devel/automake:       1.11.6, 1.13.4
sys-devel/binutils:       2.23.2
sys-devel/gcc:            4.5.4, 4.7.3-r1
sys-devel/gcc-config:     1.7.3
sys-devel/libtool:        2.4.2
sys-devel/make:           3.82-r4
sys-kernel/linux-headers: 3.9 (virtual/os-headers)
sys-libs/glibc:           2.16.0
Repositories: gentoo x-portage
ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="* -@EULA googleearth PUEL dlj-1.1 Oracle-BCLA-JavaSE"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=native -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/lib64/fax /usr/share/gnupg/qualified.txt /var/spool/fax/etc"
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/apache2-php5.5/ext-active/ /etc/php/cgi-php5.3/ext-active/ /etc/php/cgi-php5.5/ext-active/ /etc/php/cli-php5.3/ext-active/ /etc/php/cli-php5.5/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="-march=native -O2 -pipe"
DISTDIR="/usr/portage/distfiles"
EMERGE_DEFAULT_OPTS="--autounmask-write=y --keep-going --with-bdeps=y"
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 userpriv usersandbox usersync"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://mirror.csclub.uwaterloo.ca/gentoo-distfiles/ http://gentoo.osuosl.org/ ftp://mirror.csclub.uwaterloo.ca/gentoo-distfiles/ http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror/ ftp://linux.rz.ruhr-uni-bochum.de/gentoo-mirror/ ftp://ftp.spline.inf.fu-berlin.de/mirrors/gentoo/ http://ftp.spline.inf.fu-berlin.de/mirrors/gentoo/"
LANG="en_US.UTF-8"
LC_ALL="en_US.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j9 --load-average=8"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-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/local/portage"
SYNC="rsync://10.0.0.103/gentoo-portage"
USE="X a52 aac acpi alsa amd64 apache2 bluetooth branding bzip2 cairo cdda cdr cgi cleartype cli consolekit consolkit corefonts cracklib crypt cups cxx dbus dri dts dvd dvdr emboss encode exif fam firefox flac foomaticdb fortran gdbm gif gimp gimpprint gpm gtk iconv ipv6 java jpeg kpathsea lcms ldap libnotify lock mad mmx mng modules mp3 mp4 mpeg mudflap multilib mysql ncurses nls nptl ogg opengl openmp pam pango pcre pdf png policykit ppds qt3support readline scanner sdl session spell sse sse2 ssl startup-notification svg tcpd tetexspell thunar tiff truetype type1 udev udisks unicode upower usb vorbis wxwidgets x264 xcb xml xv xvid zlib" 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" 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 author" 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 ublox ubx" INPUT_DEVICES="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-3 php5-4" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_3" RUBY_TARGETS="ruby19 ruby18" SANE_BACKENDS="epson2" USERLAND="GNU" VIDEO_CARDS="nvidia nouveau" 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, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON

[Comment 1 Rafał Mużyło 2013-12-29 04:55:20 UTC]

This seems to be a dupe of bug 496328.

[Comment 2 Joseph 2013-12-29 06:35:25 UTC]

I dig out meld-1.6.0 from attic and it is working correctly.
medl-1.7.0 and 1.8.2 don't work.

[Comment 3 Jeroen Roovers (RETIRED) 2013-12-30 01:00:57 UTC]

*** This bug has been marked as a duplicate of bug 484774 ***

[Comment 4 Joseph 2013-12-30 03:46:40 UTC]

(In reply to Jeroen Roovers from comment #3)
> 
> *** This bug has been marked as a duplicate of bug 484774 ***

It is easy to make a problem duplicate of a bug (484774) that is mark Invalid and close it off.
But the problem still persist and it is real.

[Comment 5 Pacho Ramos 2013-12-30 10:45:10 UTC]

Looks more similar to bug 496328 indeed

*** This bug has been marked as a duplicate of bug 496328 ***