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Aquous
l33t
Joined: 08 Jan 2011
Posts: 700
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 Posted: Sat Mar 12, 2011 4:30 pm Post subject: devfs: waiting for udev... |
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Hi guys 
This has been bothering me for a while now.
Whenever I boot Gentoo I hit a 50 second delay while devfs is waiting for udev. If I, at this point, quickly plug in (or plug out if it's already plugged in) a USB device, my boot continues normally.
So it seems devfs is waiting for a notification of some sort from udev, which it never gets because nothing hardware-related is happening.
It may be important to mention that I downgraded this system from ~amd64 to amd64, and as a consequence I've had to keyword some packages which were simply undowngradeable. One of those is baselayout-2. If it matters, I am using the parallel job function it offers (meaning my init.d services start parallelly where possible instead of sequentially). I'm also using kernel 2.6.37 (I didn't want to downgrade, so I removed gentoo-sources from package.keywords but masked every version prior to 2.6.37 so I will be using the stable kernel once the next post-2.6.37 version hits arch).
System is AMD64 Intel i5 (Clarkdale) processor with a Gigabyte H55M-USB3 mobo running gentoo stable (NOT ~amd64).
| Code: | $ emerge -pv udev
These are the packages that would be merged, in order:
Calculating dependencies ... done!
[ebuild R ] sys-fs/udev-151-r4 USE="extras -devfs-compat -old-hd-rules (-selinux) -test" 0 kB
Total: 1 package (1 reinstall), Size of downloads: 0 kB |
(the extras useflag is not explicitly set but appears to be selected by default)
Any thoughts? |
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DONAHUE
Watchman
Joined: 09 Dec 2006
Posts: 7651
Location: Goose Creek SC
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| Posted: Sat Mar 12, 2011 5:19 pm Post subject: |
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http://www.kernel.org/doc/Documentation/ABI/removed/devfs says | Quote: | What: devfs
Date: July 2005 (scheduled), finally removed in kernel v2.6.18
Contact: Greg Kroah-Hartman <gregkh@suse.de>
Description:
devfs has been unmaintained for a number of years, has unfixable
races, contains a naming policy within the kernel that is
against the LSB, and can be replaced by using udev.
The files fs/devfs/*, include/linux/devfs_fs*.h were removed,
along with the assorted devfs function calls throughout the
kernel tree.
Users: |
you have emerged? | Quote: | ~ # emerge -s devfs
Searching...
[ Results for search key : devfs ]
[ Applications found : 1 ]
* sys-fs/devfsd [ Masked ]
Latest version available: 1.3.25-r9
Latest version installed: [ Not Installed ]
Size of files: 41 kB
Homepage: http://www.atnf.csiro.au/~rgooch/linux/
Description: Daemon for the Linux Device Filesystem
License: GPL-2 |
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Aquous
l33t
Joined: 08 Jan 2011
Posts: 700
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| Posted: Sat Mar 12, 2011 5:40 pm Post subject: |
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I don't think devfsd (which I do not have installed btw) has anything to do with /etc/init.d/devfs. The only contents of the latter are:
| Code: | #!/sbin/runscript
# Copyright (c) 2007-2008 Roy Marples <roy@marples.name>
# All rights reserved. Released under the 2-clause BSD license.
description="Mount system critical filesystems in /dev."
depend() {
use dev
keyword -prefix -vserver
}
start() {
# Mount required stuff as user may not have then in /etc/fstab
for x in \
"devpts /dev/pts 0755 ,gid=5,mode=0620 devpts" \
"tmpfs /dev/shm 1777 ,nodev shm" \
; do
set -- $x
grep -Eq "[[:space:]]+$1$" /proc/filesystems || continue
mountinfo -q $2 && continue
if [ ! -d $2 ]; then
mkdir -m $3 -p $2 >/dev/null 2>&1 || \
ewarn "Could not create $2!"
fi
if [ -d $2 ]; then
ebegin "Mounting $2"
if ! fstabinfo --mount $2; then
mount -n -t $1 -o noexec,nosuid$4 $5 $2
fi
eend $?
fi
done
return 0
} |
Also:
| Code: | $ equery b /etc/init.d/devfs
[ Searching for file(s) /etc/init.d/devfs in *... ]
sys-apps/openrc-0.7.0 (/etc/init.d/devfs) |
This service has been added to the boot runlevel ever since I installed Gentoo. |
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VoidMage
Watchman
Joined: 14 Oct 2006
Posts: 6196
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| Posted: Sat Mar 12, 2011 5:44 pm Post subject: |
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No, that was not the point.
The real problem was downgrade from baselayout2 to 1.
The upgrade was not trivial, the downgrade would be much harder.
On upgrade, ebuild did quite a few things, on downgrade, you're on your own.
Frankly, i.e. glibc explicitly disallows downgrade. While baselayout doesn't, in case of 1 -> 2 move, if you want to downgrade, you're just asking for trouble. |
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Aquous
l33t
Joined: 08 Jan 2011
Posts: 700
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| Posted: Sat Mar 12, 2011 5:54 pm Post subject: |
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I didn't downgrade baselayout. I'm on baselayout-2.
Steps I followed to downgrade glibc:
1. download binary version of desired glibc from tinderbox
2. use LDFLAGS and such to recompile @system against that glibc
3. add desired glibc to local overlay and remove downgrade check
4. downgrade glibc
5. emerge -e system && emerge -e world
Worked just fine and recompiled both @system and @world once more after that to be sure.
package.keywords contains:
| Code: | app-emulation/wine
app-emulation/vmware-workstation
app-emulation/vmware-tools
app-emulation/vmware-modules
x11-libs/libview
app-office/libreoffice
sys-apps/baselayout
x11-libs/libdrm
media-libs/mesa
x11-wm/compiz
x11-plugins/compiz-plugins-extra
gnome-extra/avant-window-navigator
gnome-extra/avant-window-navigator-extras
x11-plugins/screenlets
x11-apps/ccsm
app-editors/gedit-plugins
dev-python/compizconfig-python
x11-themes/oxygen-gtk |
Baselayout is there because I neither could nor wanted to downgrade it, the other packages are there for reasons not related to the downgrade process. |
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DONAHUE
Watchman
Joined: 09 Dec 2006
Posts: 7651
Location: Goose Creek SC
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| Posted: Sat Mar 12, 2011 6:25 pm Post subject: |
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sorry, I was looking for devfs in all the wrong places.
Takes a second here from mounting /sys to mounting /dev/shm on a fully ~amd64 system
| Quote: | emerge -pv udev
These are the packages that would be merged, in order:
Calculating dependencies... done!
[ebuild R ] sys-fs/udev-164-r1 USE="extras (-selinux) -test" |
no | Quote: | | -devfs-compat -old-hd-rules |
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Aquous
l33t
Joined: 08 Jan 2011
Posts: 700
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| Posted: Sat Mar 12, 2011 6:29 pm Post subject: |
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| DONAHUE wrote: | no | Quote: | | -devfs-compat -old-hd-rules |
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That's because your udev, being from ~arch, is newer than mine, which is from arch.
Hmm... I may try keywording udev to see whether that makes a difference. (it may be that I'm hitting a bug which is fixed in your version of udev) |
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Aquous
l33t
Joined: 08 Jan 2011
Posts: 700
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| Posted: Sat Mar 12, 2011 7:23 pm Post subject: |
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Keywording udev appears to have done the trick. Thanks for giving me that idea!  |
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DONAHUE
Watchman
Joined: 09 Dec 2006
Posts: 7651
Location: Goose Creek SC
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| Posted: Sat Mar 12, 2011 7:34 pm Post subject: |
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Well done. Wahoo!
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seenxu
n00b
Joined: 19 Oct 2009
Posts: 16
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| Posted: Tue Mar 22, 2011 11:52 am Post subject: |
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I am having the same problem, but still, no solution found yet, everytime I boot the system, have to wait 60s at "starting udevd" until the devfs timed out.
| Code: |
sys-kernel/gentoo-sources-2.6.38
sys-fs/udev-164-r2
sys-apps/openrc-0.8.0
$ rc-update show sysinit
dmesg | sysinit
udev | sysinit
devfs | sysinit
$ rc-update show boot
procfs | boot
swap | boot
mtab | boot
modules | boot
localmount | boot
fsck | boot
bootmisc | boot
urandom | boot
consolefont | boot
hostname | boot
root | boot
keymaps | boot
sysctl | boot
net.lo | boot
termencoding | boot
hwclock | boot
alsasound | boot
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optiluca
Guru
Joined: 16 Jan 2006
Posts: 551
Location: Rivergaro, Italy
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| Posted: Fri Aug 19, 2011 2:44 pm Post subject: |
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| seenxu wrote: | I am having the same problem, but still, no solution found yet, everytime I boot the system, have to wait 60s at "starting udevd" until the devfs timed out.
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Same issue over here, udev takes over 30 seconds to start, sometimes times out. In my case, plugging/unplugging devices makes no difference.
| Code: | rc-update show
alsasound | boot default
bluetooth | default
bootmisc | boot
consolefont | boot
consolekit | default
cupsd | default
dbus | default
devfs | sysinit
dmesg | sysinit
fsck | boot
gpsd | default
hdapsd | default
hdparm | default
hostname | boot
hwclock | boot
keymaps | boot
killprocs | shutdown
local | nonetwork
localmount | boot
microcode_ctl | default
modules | boot
mount-ro | shutdown
mtab | boot
mysql | default
net.lo | boot
netmount | default
ntpd | default
procfs | boot
root | boot
savecache | shutdown
shorewall | default
swap | boot
sysctl | boot
syslog-ng | default
termencoding | boot
udev | sysinit
udev-postmount | default
urandom | boot
vixie-cron | default
vnstatd | default
wicd | default
xdm | default |
| Code: | emerge --info
Portage 2.2.0_alpha51 (default/linux/amd64/10.0/desktop/kde, gcc-4.5.3, glibc-2.13-r4, 3.0.2-pf x86_64)
=================================================================
System uname: Linux-3.0.2-pf-x86_64-Intel-R-_Core-TM-_i7_CPU_Q_820_@_1.73GHz-with-gentoo-2.0.3
Timestamp of tree: Fri, 19 Aug 2011 08:00:01 +0000
app-shells/bash: 4.2_p10
dev-java/java-config: 2.1.11-r3
dev-lang/python: 2.7.2-r2
dev-util/cmake: 2.8.5-r2
dev-util/pkgconfig: 0.26
sys-apps/baselayout: 2.0.3
sys-apps/openrc: 0.8.3-r1
sys-apps/sandbox: 2.5
sys-devel/autoconf: 2.13, 2.68
sys-devel/automake: 1.9.6-r3, 1.10.3, 1.11.1-r1
sys-devel/binutils: 2.21.1
sys-devel/gcc: 4.5.3-r1
sys-devel/gcc-config: 1.4.1-r1
sys-devel/libtool: 2.4-r1
sys-devel/make: 3.82-r1
sys-kernel/linux-headers: 2.6.39 (virtual/os-headers)
sys-libs/glibc: 2.13-r4
Repositories: gentoo sunrise ikelos lcd-filtering benf bitcoin LOCAL
Installed sets:
ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="*"
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/gnupg/qualified.txt"
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-php5.2/ext-active/ /etc/php/apache2-php5.3/ext-active/ /etc/php/cgi-php5.2/ext-active/ /etc/php/cgi-php5.3/ext-active/ /etc/php/cli-php5.2/ext-active/ /etc/php/cli-php5.3/ext-active/ /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="/etc/portage/distfiles"
FEATURES="assume-digests binpkg-logs distlocks ebuild-locks fixlafiles fixpackages news parallel-fetch preserve-libs protect-owned sandbox sfperms splitdebug strict unknown-features-warn unmerge-logs unmerge-orphans userfetch"
FFLAGS=""
GENTOO_MIRRORS="http://mirror.qubenet.net/mirror/gentoo/ ftp://mirror.qubenet.net/mirror/gentoo/ http://mirror.bytemark.co.uk/gentoo/"
LANG="en_GB.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-O1"
LINGUAS="en_GB it"
MAKEOPTS="-j8"
PKGDIR="/etc/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="/var/lib/layman/sunrise /var/lib/layman/ikelos /var/lib/layman/lcd-filtering /var/lib/layman/benf /var/lib/layman/bitcoin /usr/local/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="X a52 aac acl acpi alsa amd64 amr apm avi bash-completion berkdb bluetooth branding bzip2 cairo caps cdaudio cdda cddb cdr chm cleartype cli consolekit cracklib crypt css cuda cups cxx dbus declarative dhcp dri dts dv dvb dvd dvdr dvdread editor emboss emovix encode exif faac faad fam fame fbcondecor fbsplash ffmpeg firefox flac foomaticdb fortran gcj gd gdbm gdu gif git glitz glx gphoto2 gpm gps gstreamer hdaps iconv id3tag ieee1394 imagemagick inotify ipod ipv6 it jack java java6 joystick jpeg kde kickoff kipi ladspa lastfm lcms ldap libnotify libsamplerate lm_sensors mad mbrola mikmod mmx mng modules mp2 mp3 mp4 mpeg mplayer msn mudflap multilib musicbrainz ncurses nls nptl nptlonly nsplugin nvidia ogg opengl openmp pam pango pcre pdf perl phonon plasma pmu png policykit ppds pppd python qt qt3support qt4 quicktime readline rtc samba scanner sdl semantic-desktop session skype slp smp snmp spell sse sse2 sse3 ssl ssse3 startup-notification subtitles subversion svg sysfs tcpd theora threads tiff truetype twolame udev unicode usb v4l v4l2 vdpau vorbis wicd wifi x264 xcomposite xine xinerama xml xorg xscreensaver xulrunner xv xvid zeroconf zlib" ALSA_CARDS="hda-intel" 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 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="braindump flow karbon kexi kpresenter krita tables words" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" 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 joystick synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en_GB it" PHP_TARGETS="php5-3 php5-2" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="nvidia" 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
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| Code: | sys-fs/udev
Available versions: 114 115-r1 119 124-r1 124-r2 141 (~)141-r1 146-r1!t 149 151-r4 164-r2 (~)171-r1 **9999 {acl action_modeswitch build debug (+)devfs-compat edd (-)extras floppy gudev hwdb introspection keymap old-hd-rules +rule_generator selinux test}
Installed versions: 171-r1(11:46:48 23/06/11)(acl extras gudev hwdb keymap rule_generator -action_modeswitch -build -debug -edd -floppy -introspection -selinux -test)
Homepage: http://www.kernel.org/pub/linux/utils/kernel/hotplug/udev.html
Description: Linux dynamic and persistent device naming support (aka userspace devfs)
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Bootchart output:
http://imagebin.org/168685
Does anyone have any ideas? 
_________________
# "Hmm, sounds like your system froze up."
# "I don't know why. It's about 80 degrees in here!"
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Kernel & Hardware
