Using sys-apps/portage-2.2_rc61 I've just had a seldom problem with portage. I had 3 emerge-processes running each using the '-j' option (up to -j8) on an 8 core AMD64 machine. One of these (binary emerge of more than 400 packages) failed with Traceback (most recent call last): File "/usr/bin/emerge", line 42, in <module> retval = emerge_main() File "/usr/lib64/portage/pym/_emerge/main.py", line 1535, in emerge_main myopts, myaction, myfiles, spinner) File "/usr/lib64/portage/pym/_emerge/actions.py", line 428, in action_build retval = mergetask.merge() File "/usr/lib64/portage/pym/_emerge/Scheduler.py", line 840, in merge rval = self._merge() File "/usr/lib64/portage/pym/_emerge/Scheduler.py", line 1148, in _merge self._main_loop() File "/usr/lib64/portage/pym/_emerge/Scheduler.py", line 1288, in _main_loop self._poll_loop() File "/usr/lib64/portage/pym/_emerge/PollScheduler.py", line 125, in _poll_loop f, event = self._next_poll_event() File "/usr/lib64/portage/pym/_emerge/PollScheduler.py", line 115, in _next_poll_event self._poll(timeout) File "/usr/lib64/portage/pym/_emerge/Scheduler.py", line 276, in _poll self._schedule() File "/usr/lib64/portage/pym/_emerge/PollScheduler.py", line 43, in _schedule return self._schedule_tasks() File "/usr/lib64/portage/pym/_emerge/Scheduler.py", line 1317, in _schedule_tasks if q.schedule(): File "/usr/lib64/portage/pym/_emerge/SequentialTaskQueue.py", line 56, in schedule task.start() File "/usr/lib64/portage/pym/_emerge/AsynchronousTask.py", line 24, in start self._start() File "/usr/lib64/portage/pym/_emerge/MergeListItem.py", line 104, in _start self._start_task(binpkg, self._default_final_exit) File "/usr/lib64/portage/pym/_emerge/CompositeTask.py", line 119, in _start_task task.start() File "/usr/lib64/portage/pym/_emerge/AsynchronousTask.py", line 24, in start self._start() File "/usr/lib64/portage/pym/_emerge/Binpkg.py", line 98, in _start self._prefetch_exit(prefetcher) File "/usr/lib64/portage/pym/_emerge/Binpkg.py", line 105, in _prefetch_exit self._build_dir.lock() File "/usr/lib64/portage/pym/_emerge/EbuildBuildDir.py", line 53, in lock catdir_lock = portage.locks.lockdir(catdir) File "/usr/lib64/portage/pym/portage/locks.py", line 32, in lockdir return lockfile(mydir,wantnewlockfile=1) File "/usr/lib64/portage/pym/portage/locks.py", line 129, in lockfile fcntl.lockf(myfd, fcntl.LOCK_EX) IOError: [Errno 35] Resource deadlock avoided Reproducible: Couldn't Reproduce emerge --info Portage 2.2_rc61 (default/linux/amd64/10.0/desktop, gcc-4.4.2, glibc-2.11-r1, 2.6.32-gentoo-r1 x86_64) ================================================================= System uname: Linux-2.6.32-gentoo-r1-x86_64-Quad-Core_AMD_Opteron-tm-_Processor_2356-with-gentoo-2.0.1 Timestamp of tree: Thu, 28 Jan 2010 11:20:01 +0000 ccache version 2.4 [disabled] app-shells/bash: 4.0_p35 dev-java/java-config: 1.3.7-r1, 2.1.10 dev-lang/python: 2.6.4 dev-python/pycrypto: 2.1.0 dev-util/ccache: 2.4-r8 dev-util/cmake: 2.8.0 sys-apps/baselayout: 2.0.1 sys-apps/openrc: 0.6.0 sys-apps/sandbox: 2.2 sys-devel/autoconf: 2.13, 2.65 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.3, 1.11.1 sys-devel/binutils: 2.20 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.2.6b virtual/os-headers: 2.6.30-r1 ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-mtune=native -O2 -pipe" CHOST="x86_64-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/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/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="-mtune=native -O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests buildpkg distlocks fixpackages news parallel-fetch preserve-libs protect-owned sandbox sfperms splitdebug strict unmerge-logs unmerge-orphans userfetch" GENTOO_MIRRORS="ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo " LDFLAGS="-Wl,-O1" LINGUAS="en de" MAKEOPTS="-j8" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" 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 /usr/local/portage/layman/java-overlay" SYNC="rsync://rsync.informatik.RWTH-Aachen.de/gentoo-portage" USE="3dnow 3dnowext 3dnowprefetch X a52 aac acl acpi amd64 atm avahi berkdb branding bzip2 cairo cdr cli consolekit cracklib crypt cups cxx dbus dri dts dvd dvdr eds emboss encode evo fam firefox flac fortran gdbm gif gimp gnome gpm gstreamer gtk gtk2 hal iconv ipv6 jpeg kde lcms libnotify mad mikmod mmx mmxext mng modules mp3 mp4 mpeg mudflap multilib ncurses nls nptl nptlonly ogg opengl openmp pam pcre pdf perl png ppds pppd python qt qt3support qt4 quicktime readline reflection sdl session spell spl sqlite sqlite3 sse sse2 sse3 sse4a ssl startup-notification svg sysfs tcl tcpd threads thunar tiff tk truetype unicode usb vorbis x264 xml xorg xulrunner xv xvid zlib" 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="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 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" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en de" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="nv nvidia" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LANG, LC_ALL, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
This is now more than 5 years old without any further reports of this trouble. User also reported he was unable to reproduce at the time. Please re-open if this issue re-surfaces.