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Bug 154847 - Tap driver ip configuration fails on 1 st attempts; succeeds thereafter
Summary: Tap driver ip configuration fails on 1 st attempts; succeeds thereafter
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] baselayout (show other bugs)
Hardware: All Linux
: High normal (vote)
Assignee: Gentoo's Team for Core System packages
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2006-11-11 15:33 UTC by Christopher Byrne
Modified: 2007-01-10 12:24 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---


Attachments
Bring interfaces up earlier (x,678 bytes, patch)
2006-11-13 08:26 UTC, Roy Marples (RETIRED)
Details | Diff

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Description Christopher Byrne 2006-11-11 15:33:06 UTC
User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0
Build Identifier: 

When the init scripts (net.tap0) attempts to create the tap device (mark it
persistent), it succeeds; but fails to configure the IP. However, 2nd a future
attempts succeeds (because the 1st attempt created the tap device already and
didn't destroy it after it failed.)
If the tap device is created beforehand (either manually, or from the previous
failure), the script will succeed in configuring the tap device.


Reproducible: Always

Steps to Reproduce:
Just run the net.tap0 script for the first time, or after deleting it manually
(mark it nonpersistent). Scripts are using openvpn to create/destroy the tap
device, and iproute2 to configure the interface.
Actual Results:  
net.tap0 fails to configure the interface
In addition, a successful stop of net.tap0 does not destroy the tap device (but
it does unconfigure the interface) but not for the same reason as bug 154509 (as
this is using openvpn, not tunctl). That's why the script works after the first
failure - the tap device wasn't destroyed.

Expected Results:  
net.tap0 successfully configures the interface on startup, and properly destroys
the tap device on stop. 

Gentoo Base System version 1.12.6
Portage 2.1.1-r1 (default-linux/x86/2006.1, gcc-4.1.1, glibc-2.4-r4,
2.6.18-gentoo-r2 i686)
=================================================================
System uname: 2.6.18-gentoo-r2 i686 AMD Athlon(tm) XP 2000+
Last Sync: Sat, 11 Nov 2006 04:30:01 +0000
app-admin/eselect-compiler: [Not Present]
dev-java/java-config: [Not Present]
dev-lang/python:     2.4.3-r4
dev-python/pycrypto: 2.0.1-r5
dev-util/ccache:     [Not Present]
dev-util/confcache:  [Not Present]
sys-apps/sandbox:    1.2.17
sys-devel/autoconf:  2.13, 2.60
sys-devel/automake:  1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2
sys-devel/binutils:  2.16.1-r3
sys-devel/gcc-config: 1.3.13-r4
sys-devel/libtool:   1.5.22
virtual/os-headers:  2.6.17-r1
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-march=athlon-xp -O2 -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc"
CONFIG_PROTECT_MASK="/etc/env.d /etc/gconf /etc/revdep-rebuild /etc/terminfo"
CXXFLAGS="-march=athlon-xp -O2 -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoconfig buildpkg distlocks metadata-transfer sandbox sfperms strict"
GENTOO_MIRRORS="http://distfiles.gentoo.org
http://distro.ibiblio.org/pub/linux/distributions/gentoo"
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.gentoo.org/gentoo-portage"
USE="x86 3dnow 3dnowext acl berkdb bitmap-fonts bzip2 caps cli cracklib crypt
cups dbus dlloader dri dvd dvdread elibc_glibc fam fortran gdbm gnutls gpm iconv
input_devices_evdev input_devices_keyboard input_devices_mouse ipv6 isdnlog
kernel_linux libg++ logrotate mmx mmxext ncurses nls nptl nptlonly pam pcre perl
ppds pppd python readline reflection samba session spl sse ssl tcpd
truetype-fonts type1-fonts udev unicode userland_GNU video_cards_apm
video_cards_ark video_cards_ati video_cards_chips video_cards_cirrus
video_cards_cyrix video_cards_dummy video_cards_fbdev video_cards_glint
video_cards_i128 video_cards_i740 video_cards_i810 video_cards_imstt
video_cards_mga video_cards_neomagic video_cards_nsc video_cards_nv
video_cards_rendition video_cards_s3 video_cards_s3virge video_cards_savage
video_cards_siliconmotion video_cards_sis video_cards_sisusb video_cards_tdfx
video_cards_tga video_cards_trident video_cards_tseng video_cards_v4l
video_cards_vesa video_cards_vga video_cards_via video_cards_vmware
video_cards_voodoo xorg zlib"
Unset:  CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS,
LINGUAS, MAKEOPTS, PORTAGE_RSYNC_EXTRA_OPTS
Comment 1 Roy Marples (RETIRED) gentoo-dev 2006-11-13 08:26:03 UTC
Created attachment 101841 [details, diff]
Bring interfaces up earlier

Try this patch please
Comment 2 Christopher Byrne 2006-11-13 20:59:38 UTC
The patch doesn't work, it still can't configure the interface unless the tap device is created beforehand, and it still doesn't destroy the tap interface on stop. But now when the scripts fails to start it no longer leaves the unconfigured tap device behind (so now it ALWAYS fails when you start it). 
Comment 3 Roy Marples (RETIRED) gentoo-dev 2007-01-10 12:24:39 UTC
This should be fixed in baselayout-1.13.0_alpha11. Re-open if you disagree.