I've just upgraded udev to version 196-r1 (from udev-182-r3), and now it doesn't auto-load modules for my hardware (for example, ethernet and wifi). Previous version didn't have this problem. I'm running kernel 3.7.1-gentoo. emerge --info: Portage 2.2.0_alpha149 (default/linux/amd64/10.0/desktop, gcc-4.5.3, glibc-2.12.1, 3.7.1-gentoo x86_64) ================================================================= System uname: Linux-3.7.1-gentoo-x86_64-Intel-R-_Core-TM-2_Duo_CPU_P9600_@_2.53GHz-with-gentoo-2.1 Timestamp of tree: Mon, 24 Dec 2012 09:30:01 +0000 ld GNU ld (GNU Binutils) 2.21.1 distcc 3.1 x86_64-pc-linux-gnu [disabled] app-shells/bash: 4.2_p39-r1 dev-java/java-config: 2.1.11 dev-lang/python: 2.5.4-r4, 2.6.5-r3, 2.7.3-r2, 3.1.2-r4, 3.2.2 dev-util/cmake: 2.8.8-r2 dev-util/pkgconfig: 0.27.1 sys-apps/baselayout: 2.1-r1 sys-apps/openrc: 0.11.8 sys-apps/sandbox: 2.2 sys-devel/autoconf: 2.13, 2.68 sys-devel/automake: 1.7.9-r1, 1.8.5-r3, 1.9.6-r3, 1.10.3, 1.11.1 sys-devel/binutils: 2.21.1-r1 sys-devel/gcc: 4.2.4-r1, 4.3.5, 4.4.4-r1, 4.5.3-r1 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.2.10 sys-devel/make: 3.81-r2 sys-kernel/linux-headers: 3.6 (virtual/os-headers) sys-libs/glibc: 2.12.1 Repositories: gentoo rion lisp java-overlay local ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA AdobeFlash-10.1 AdobeFlash-10.3 dlj-1.1 Intel-SDP" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/openvpn/easy-rsa /var/lib/hsqldb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/splash /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" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs collision-protect 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 xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://mirror.yandex.ru/gentoo-distfiles http://distfiles.gentoo.org http://www.ibiblio.org/pub/Linux/distributions/gentoo" LANG="ru_RU.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --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/portage/local/layman/rion /usr/portage/local/layman/lisp /usr/portage/local/layman/java-overlay /usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="X a52 aac acl acpi alsa amd64 bbdb berkdb bluetooth branding bzip2 cairo cdda cdr cli consolekit cracklib crypt cups cxx dbus djvu dri dts dvd dvdr dvi emacs emboss encode exif fam firefox flac fortran gdbm gif gpg gpm gtk iconv idn imap ipv6 ithreads jingle jpeg kpathsea latex lcms ldap libnotify mad mbox mmx mng modules mp3 mp4 mpeg mudflap multilib ncurses nls nntp nodrm nptl ogg opengl openmp pam pango pcre pdf png policykit pop ppds pppd qt3support qt4 readline sbcl sdl session spell sqlite sse sse2 sse4_1 ssl ssse3 startup-notification svg system-sqlite tcpd theora threads tiff truetype udev udisks unicode upower usb v4l2 vim-syntax vorbis wifi wxwidgets x264 xattr xcb xft xml 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="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" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" DRACUT_MODULES="lvm mdraid" 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 synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="ru en" PHP_TARGETS="php5-3" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_6 python3_2" RUBY_TARGETS="ruby18 ruby19" USERLAND="GNU" VIDEO_CARDS="intel vesa fbdev" 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, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
More info about your system is required. The minimum is 'emerge -1pv sys-fs/udev'. A detail or two about your setup (i.e. are you using initramfs, is CONFIG_DEVTMPFS_MOUNT set, etc.) might matter too.
Thank you, the problem seems to be solved. For some strange reason on my system udev was merged with USE=-kmod (perhaps I did 'emerge --sync' before this use-flag was added).
