I cannot access localhost (100% package loss when pinging localhost or 127.0.0.1), while my internet connection over eth0 just works. During boot, the message 'Bringing lo up [ok]' appears without errors, but once I login to Gnome the localhost loopback seems to have disappeared. 'Ifconfig lo up' just gives me: "lo: unknown interface: No such device" (I did a strace on 'ping localhost', of which you can inspect the results here: http://forums.gentoo.org/viewtopic-p-2416461.html#2416461 ) I tried re-emerging different packages, and have compiled a new kernel (2.6.11-r9), but that doesn't seen to make a difference. Reproducible: Always Steps to Reproduce: 1. Start pc 2. Start terminal 3. Do 'ifconfig', 'ifconfig -a' and ifconfig lo up' Actual Results: marvin ~ # ifconfig eth0 Link encap:Ethernet HWaddr 00:0C:6E:C8:5C:EC inet addr:10.0.0.150 Bcast:10.0.0.255 Mask:255.255.255.0 UP BROADCAST NOTRAILERS RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2162 errors:0 dropped:0 overruns:0 frame:0 TX packets:2241 errors:1 dropped:0 overruns:0 carrier:1 collisions:0 txqueuelen:1000 RX bytes:1403406 (1.3 Mb) TX bytes:407350 (397.8 Kb) Interrupt:5 Base address:0x2000 marvin ~ # ifconfig -a eth0 Link encap:Ethernet HWaddr 00:0C:6E:C8:5C:EC inet addr:10.0.0.150 Bcast:10.0.0.255 Mask:255.255.255.0 UP BROADCAST NOTRAILERS RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2157 errors:0 dropped:0 overruns:0 frame:0 TX packets:2235 errors:1 dropped:0 overruns:0 carrier:1 collisions:0 txqueuelen:1000 RX bytes:1402693 (1.3 Mb) TX bytes:406926 (397.3 Kb) Interrupt:5 Base address:0x2000 eth1 Link encap:Ethernet HWaddr 00:26:54:13:0D:54 BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) Interrupt:11 Base address:0x9000 eth2 Link encap:UNSPEC HWaddr 00-E0-18-00-00-37-8D-4A-00-00-00-00-00-00-00-00 BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) sit0 Link encap:IPv6-in-IPv4 NOARP MTU:1480 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) usb_kings Link encap:Local Loopback LOOPBACK MTU:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) marvin ~ # ifconfig lo up lo: unknown interface: No such device marvin ~ # emerge info Portage 2.0.51.19 (default-linux/x86/2005.0, gcc-3.4.3, glibc-2.3.5-r0, 2.6.11-gentoo-r9 i686) ================================================================= System uname: 2.6.11-gentoo-r9 i686 AMD Athlon(tm) XP 2600+ Gentoo Base System version 1.4.16 Python: dev-lang/python-2.2.3-r1,dev-lang/python-2.3.5,dev-lang/python-2.4.1 [2.4.1 (#1, May 11 2005, 10:41:38)] dev-lang/python: 2.2.3-r1, 2.3.5, 2.4.1 sys-apps/sandbox: [Not Present] sys-devel/autoconf: 2.59-r6, 2.13 sys-devel/automake: 1.7.9-r1, 1.8.5-r3, 1.5, 1.4_p6, 1.6.3, 1.9.5 sys-devel/binutils: 2.15.92.0.2-r9 sys-devel/libtool: 1.5.14 virtual/os-headers: 2.6.8.1-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CFLAGS="-O2 -march=athlon-xp -fomit-frame-pointer" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.1/share/config /usr/kde/3.2/share/config /usr/kde/3.3/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/lib/mozilla/defaults/pref /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/ /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-O2 -march=athlon-xp -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs autoconfig ccache distlocks sandbox sfperms strict" GENTOO_MIRRORS="http://ftp.snt.utwente.nl/pub/os/linux/gentoo ftp://ftp.snt.utwente.nl/pub/os/linux/gentoo rsync://ftp.snt.utwente.nl/gentoo" LDFLAGS="-Wl,-O1" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage /usr/local/portage-gentopia" SYNC="rsync://rsync.nl.gentoo.org/gentoo-portage" USE="x86 3dnow X aalib alsa apm arts avi berkdb bitmap-fonts bluetooth bonobo crypt cups curl dvd dvdr eds emboss encode esd evo fam flac foomaticdb fortran gdbm gif gnome gnutls gphoto2 gpm gstreamer gtk gtk2 gtkhtml gtksharp hal imagemagick imlib ipv6 java jpeg junit kde ldap libg++ libwww mad mikmod mmx mono motif mozilla mp3 mpeg ncurses nls nptl nptlonly ogg oggvorbis opengl oss pam pdflib perl png ppds python qt quicktime radeon readline ruby scanner sdl slang spell sqlite ssl svga tcltk tcpd tetex tiff truetype truetype-fonts type1-fonts usb vorbis xine xml xml2 xmms xv zlib userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CBUILD, CTARGET, LANG, LC_ALL, LINGUAS
One addition: the usb_kings device that shows up under 'ifconfig -a' is my usb stick. Why did shows up there is beyond me, because it isn't plugged in.
what does `ls -l /etc/init.d/net.lo` show ? what happens if you do this: ifconfig lo 127.0.0.1 up ifconfig lo
(In reply to comment #2) > what does `ls -l /etc/init.d/net.lo` show ? > > what happens if you do this: > ifconfig lo 127.0.0.1 up > ifconfig lo Well: marvin ~ # ls -l /etc/init.d/net.lo -rwxr-xr-x 1 root root 512 Dec 17 10:56 /etc/init.d/net.lo marvin ~ # ifconfig lo 127.0.0.1 up SIOCSIFADDR: No such device lo: unknown interface: No such device lo: unknown interface: No such device marvin ~ # ifconfig lo lo: error fetching interface information: Device not found
chances are good your kernel is configured wrong then
Does /sys/class/net/lo/ exist?
(In reply to comment #5) > Does /sys/class/net/lo/ exist? No, it doesn't.
(In reply to comment #6) > (In reply to comment #5) > > Does /sys/class/net/lo/ exist? > > No, it doesn't. Anyway, I did some more testing with a more linux and gentoo savvy friend (icq support rulez). The following did work: ifconfig usb_kingston 127.0.0.1 up After that command, I can reach localhost again. Just pinging, and also managing cups via localhost:631 Now I'll try to figure out why this is happening and why lo just doesn't come up. Any pointers are welcome.
Ah- something is renaming lo to "usb_kingston". Probably udev or nameif - remove any customizations you have made.
(In reply to comment #8) > Ah- something is renaming lo to "usb_kingston". Probably udev or nameif - remove > any customizations you have made. I removed my local udev rules, rebooted, and now lo is up. So it must have been something related to that. I'll try to find the part of the rules that caused this and post it back here, in case someone else has the same issue in the future. fyi, this is what I had in 10-local.rules BUS="usb", SYSFS{serial}="L98040406292041500", SYSFS{manufacturer}="EPSON", NAME="%k", SYMLINK="printers/epson_stylus", GROUP="plugdev" BUS="usb", SYSFS{serial}="0831564033A0D1B3", SYSFS{manufacturer}="Kingston", SYSFS{product}="DataTraveler2.0", NAME="usb_kingston", SYMLINK="usbstorage/kingston_datatraveler", GROUP="plugdev" BUS="usb", SYSFS{serial}="000A27001013446F", SYSFS{manufacturer}="Apple", NAME=$ SYMLINK="ipod/shuffle", GROUP="plugdev"
closing
(In reply to comment #9) > (In reply to comment #8) > > Ah- something is renaming lo to "usb_kingston". Probably udev or nameif - remove > > any customizations you have made. > > I removed my local udev rules, rebooted, and now lo is up. > So it must have been something related to that. > > I'll try to find the part of the rules that caused this and post it back here, > in case someone else has the same issue in the future. fyi, this is what I had > in 10-local.rules > > BUS="usb", SYSFS{serial}="L98040406292041500", > SYSFS{manufacturer}="EPSON", NAME="%k", SYMLINK="printers/epson_stylus", > GROUP="plugdev" > BUS="usb", SYSFS{serial}="0831564033A0D1B3", > SYSFS{manufacturer}="Kingston", SYSFS{product}="DataTraveler2.0", > NAME="usb_kingston", SYMLINK="usbstorage/kingston_datatraveler", > GROUP="plugdev" > BUS="usb", SYSFS{serial}="000A27001013446F", SYSFS{manufacturer}="Apple", NAME=$ > SYMLINK="ipod/shuffle", GROUP="plugdev" > Since the Kingston rule is the only rule where I defined a NAME, and this NAME is the usb_kingston that showed up with an ifconfig, it must be related to that. Thanks for the help, dsd and SpanKY. :)
