Bug 477240 – sys-apps/systemd-205: first "df -h" run after reboot takes long time to show

• Product: Gentoo Linux
• Status: RESOLVED WORKSFORME

[Description Pacho Ramos 2013-07-17 19:23:48 UTC]

I don't know why, but running "df -h" after reboot now takes a long time to show anything, also shows to errors:
$ LC_ALL=C df -h
df: '/sys/fs/cgroup/openrc': No such file or directory
df: '/run/user/1001/gvfs': Transport endpoint is not connected
Filesystem      Size  Used Avail Use% Mounted on
rootfs          197G  100G   87G  54% /
/dev/sda5       197G  100G   87G  54% /
devtmpfs        2.9G     0  2.9G   0% /dev
tmpfs           2.9G  1.1M  2.9G   1% /run
cgroup_root     2.9G     0  2.9G   0% /sys/fs/cgroup
shm             2.9G  2.2M  2.9G   1% /dev/shm
tmpfs           2.9G     0  2.9G   0% /var/tmp/portage
/dev/sda8       500M  402M   99M  81% /usr/portage
/dev/sda6       207G  183G   14G  94% /home
/dev/sda9       398M  363M   36M  92% /home/pacho/gentoo-x86


Reproducible: Always




$ emerge --info
Portage 2.1.12.13 (default/linux/amd64/13.0/desktop/gnome, gcc-4.6.3, glibc-2.15-r3, 3.9.9-gentoo x86_64)
=================================================================
System uname: Linux-3.9.9-gentoo-x86_64-Intel-R-_Core-TM-_i5-2410M_CPU_@_2.30GHz-with-gentoo-2.2
KiB Mem:     6007620 total,    265048 free
KiB Swap:    5140476 total,   5140308 free
Timestamp of tree: Sun, 14 Jul 2013 20:30:01 +0000
ld GNU ld (GNU Binutils) 2.23.1
ccache version 3.1.9 [enabled]
app-shells/bash:          4.2_p45
dev-java/java-config:     2.1.12-r1
dev-lang/python:          2.7.5, 3.2.5-r1
dev-util/ccache:          3.1.9
dev-util/cmake:           2.8.10.2-r2
dev-util/pkgconfig:       0.28
sys-apps/baselayout:      2.2
sys-apps/openrc:          9999
sys-apps/sandbox:         2.6-r1
sys-devel/autoconf:       2.13, 2.69
sys-devel/automake:       1.10.3, 1.11.6, 1.12.6
sys-devel/binutils:       2.23.1
sys-devel/gcc:            4.6.3, 4.7.2-r1
sys-devel/gcc-config:     1.7.3
sys-devel/libtool:        2.4-r1
sys-devel/make:           3.82-r4
sys-kernel/linux-headers: 3.7 (virtual/os-headers)
sys-libs/glibc:           2.15-r3
Repositories: gentoo bumblebee local
ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -pipe -march=native"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt /usr/share/openvpn/easy-rsa /var/bind /var/lib/hsqldb"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /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="-O2 -pipe -march=native"
DISTDIR="/usr/distfiles"
EMERGE_DEFAULT_OPTS="--quiet-build=n --autounmask-write"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs ccache config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync multilib-strict news parallel-fetch preserve-libs protect-owned sandbox sfperms sign split-log strict test test-fail-continue unknown-features-warn unmerge-logs unmerge-orphans userfetch xattr"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://ftp.heanet.ie/pub/gentoo/"
LANG="es_ES.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,--hash-style=gnu"
MAKEOPTS="-j5"
PKGDIR="/usr/local/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/bumblebee /usr/local/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="X a52 aac acl acpi alsa amd64 applet avx avx256 bash-completion berkdb bluetooth branding bzip2 cairo cdda cddb cdr cli colord consolekit cracklib crypt cups cvs cxx dbus djvu dri dts dvd dvdr dvi eds emboss enchant encode evo exif fam fat ffmpeg firefox flac fortran fuse gdbm gif gnome gnome-keyring gnome-online-accounts gpm gstreamer gtk gtk3 gtkstyle http iconv infinality introspection irc jabber jpeg kpathsea latex lcms ldap libnotify libsecret libvisual lyx mad mms mmx mmxext mng modules mono monolithic-build mp3 mp4 mpeg mudflap multilib musicbrainz nautilus ncurses network-cron networkmanager nls nptl ntfs ntp numa nvidia ogg opengl openmp optimized-qmake pam pango pch pdf png policykit ppds pulseaudio qt3support readline reiserfs scanner sdl session smp sna socialweb spell sse sse2 sse3 sse4 sse4_1 ssl ssse3 startup-notification svg systemd t1lib tcpd test theora threads tiff truetype udev udisks unicode upnp-av upower usb v4l vaapi vala vcd vdpau vorbis wifi wxwidgets x264 xattr xcb xfs xml xv xvid youtube zlib" ABI_X86="64" ALSA_CARDS="hda-intel" 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 author" 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 synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="es es_ES en_US" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-4" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_2" RUBY_TARGETS="ruby19 ruby18" USERLAND="GNU" VIDEO_CARDS="fbdev nvidia vesa intel i915 i965" 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, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON

[Comment 1 Mike Gilbert 2013-07-17 20:19:32 UTC]

Do you have /etc/mtab symlinked to /proc/self/mounts? If not, you probably have stale entries there.

[Comment 2 Pacho Ramos 2013-07-17 20:28:25 UTC]

(In reply to Mike Gilbert from comment #1)
> Do you have /etc/mtab symlinked to /proc/self/mounts? If not, you probably
> have stale entries there.

Yeah, that is the case. What should I do? Create a link (upstream suggests that but looks to cause other problems... even if I don't know if upstream knows that it causes problems) or edit /etc/mtab manually?

Thanks :)

[Comment 3 Mike Gilbert 2013-07-17 23:09:54 UTC]

I just went with the symlink; I haven't noticed any problems, but I don't have any user or nfs mounts.

[Comment 4 Pacho Ramos 2013-07-20 09:40:28 UTC]

Yes, this is caused by missing symlink. Where is the doc about that supposed problems that appear with the symlink? I would suggest people to make the symlink (as opposite to current docs that looks to suggest it's optional and causes less problems)

Thanks

[Comment 5 Mike Gilbert 2013-07-20 23:35:34 UTC]

(In reply to Pacho Ramos from comment #4)

My point of reference was our own wiki page.

http://wiki.gentoo.org/wiki/Systemd#.2Fetc.2Fmtab_symlink

I don't know where the upstream recommendation is documented.

[Comment 6 Pacho Ramos 2013-07-21 06:53:28 UTC]

Upstream recommendation is shown on every boot if you don't have the link 

jul 14 01:12:18 belkin4 systemd[1]: /etc/mtab is not a symlink or not pointing to /proc/self/mounts. This is not supported anymore. Please make sure to replace this file by a symlink to avoid incorrect or misleading mount(8) output

[Comment 7 Pacho Ramos 2013-07-24 18:02:23 UTC]

I have added a note:
http://wiki.gentoo.org/wiki/Systemd#.2Fetc.2Fmtab_symlink

[Comment 8 Pacho Ramos 2013-10-18 17:13:07 UTC]

I think we cannot do much more  in systemd side -> we show warnings from ebuild, also the guide explains the issues...