If I try to get an IP address from my starting user mode linux image via dhcpcd from my host system (use dnsmasq for DHCP service) I get the following entries in my host syslog: Feb 13 13:40:47 n22 tun: Universal TUN/TAP device driver, 1.6 Feb 13 13:40:47 n22 tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com> Feb 13 13:40:47 n22 udevd-event[23222]: rename_netif: error changing netif name tap0 to netlink/tap0: Invalid argument Feb 13 13:40:48 n22 dnsmasq[4897]: DHCPDISCOVER(tap0) 2a:93:e5:15:4e:b9 Feb 13 13:40:48 n22 dnsmasq[4897]: DHCPOFFER(tap0) 192.168.0.50 2a:93:e5:15:4e:b9 Feb 13 13:40:51 n22 dnsmasq[4897]: DHCPDISCOVER(tap0) 2a:93:e5:15:4e:b9 Feb 13 13:40:51 n22 dnsmasq[4897]: DHCPOFFER(tap0) 192.168.0.50 2a:93:e5:15:4e:b9 Feb 13 13:40:54 n22 dnsmasq[4897]: DHCPDISCOVER(tap0) 2a:93:e5:15:4e:b9 Feb 13 13:40:54 n22 dnsmasq[4897]: DHCPOFFER(tap0) 192.168.0.50 2a:93:e5:15:4e:b9 Feb 13 13:40:57 n22 dnsmasq[4897]: DHCPDISCOVER(tap0) 2a:93:e5:15:4e:b9 B/c I don't use bridging for my UML system (the parameter eth0=tuntap,,2A:93:E5:15:4E:B9,192.168.0.254 together with a valid static IP address in /etc/conf.d/net inside of the UML works fine to establish a network connection) I don't really expect to get an IP address via DHCP but the error message should go away, isn't it ? Reproducible: Always tfoerste@n22 ~ $ emerge --info Portage 2.1.2-r9 (default-linux/x86/2006.1, gcc-3.4.6, glibc-2.5-r0, 2.6.19-gentoo-r5 i686) ================================================================= System uname: 2.6.19-gentoo-r5 i686 Intel(R) Pentium(R) M processor 1700MHz Gentoo Base System version 1.12.6 Timestamp of tree: Tue, 13 Feb 2007 07:50:01 +0000 ccache version 2.4 [enabled] dev-java/java-config: 1.3.7, 2.0.31 dev-lang/python: 2.4.3-r4 dev-python/pycrypto: 2.0.1-r5 dev-util/ccache: 2.4-r6 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: 1.3.14 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.17-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=pentium-m -fomit-frame-pointer -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/revdep-rebuild /etc/terminfo" CXXFLAGS="-O2 -march=pentium-m -fomit-frame-pointer -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig ccache distlocks metadata-transfer parallel-fetch sandbox sfperms strict" GENTOO_MIRRORS="http://pandemonium.tiscali.de/pub/gentoo/ http://85.25.128.62 http://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/ http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror/" LINGUAS="de en" 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" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.de.gentoo.org/gentoo-portage" USE="X aac acpi alsa apache2 arts asf berkdb bitmap-fonts bluetooth bzip2 cairo cddb clamav cli cracklib crypt css cups dlloader dri dvd dvdr dvdread exif fam fastbuild fortran gd gdbm gif gpm gtk gtk2 hdaps i8x0 iconv ipv6 isdnlog jai java javascript jimi jpeg libg++ logrotate madwifi mbox midi mikmod mmx mmxext mp3 mp4 mysql ncurses nls nptl nptlonly nsplugin opengl pam pcre pdf perl png ppds pppd python readline real reflection rtc samba session spl sse sse2 ssl subversion svg tcpd tiff truetype truetype-fonts type1-fonts unicode userlocales win32codecs x86 xml xorg xpm zlib" ALSA_CARDS="intel8x0 intel8x0m" 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 joystick evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="de en" USERLAND="GNU" VIDEO_CARDS="vga radeon" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, PORTAGE_RSYNC_EXTRA_OPTS
It seems only that udev tries to use that rule from 50-udev.rules on the netif create event: KERNEL=="tap*", NAME="netlink/%k" Perhaps we should jump over all rules from 50-udev.rules when SUBSYSTEM=="net". As that us just an ugly msg, it will be included in next version and not immediately create a new for this bug.
Does the error disappear if you comment the rule cited in comment #1 (in /etc/udev/rules.d/50-udev.rules)?
At least normal rules (from 50-udev.rules) are no longer executed for network devices with udev-106-r2. If that does not solve your bug, please reopen it.
