I miss /dev/loop-control and /dev/mapper/control. They are not created anymore after upgrading from 1.10-r2 to 3.1.2. So loop.ko or dm_mod.ko are not loaded at first use of losetup/dmsetup like before. workaround is manually loading look.ko / dm_mod.ko before. no custom udev-rules in use. both times the same losetup-version (util-linux) and the same kernel is in use. before with 1.10-r2: root @ localhost ~ $ LOOPDEV_DEBUG=yes losetup /dev/loop7 /tmp/xx loopdev: [0xbfd0d474]: init: ignore ioctls loopdev: [0xbfd0d474]: init: loop-control detected loopdev: [0xbfd0d474]: /dev/loop7 name assigned loopdev: [0xbfd0d474]: add_device 7 loopdev: [0xbfd0d474]: add_device done [rc=-1] loopdev: [0xbfd0d474]: set backing file=/.layer23/mnt/readwrite/tmp/xx loopdev: [0xbfd0d474]: device setup requested loopdev: [0xbfd0d474]: setup: backing file open: OK loopdev: [0xbfd0d474]: open /dev/loop7 [rw]: Success loopdev: [0xbfd0d474]: setup: device open: OK loopdev: [0xbfd0d474]: setup: LOOP_SET_FD: OK loopdev: [0xbfd0d474]: setup: LOOP_SET_STATUS64: OK loopdev: [0xbfd0d474]: setup success [rc=0] loopdev: [0xbfd0d474]: de-initialize loopdev: [0xbfd0d474]: closing old open fd loopdev: [0xbfd0d474]: iter: de-initialize now with 3.1.2: loopdev: [0xbfe7d704]: init: ignore ioctls loopdev: [0xbfe7d704]: /dev/loop7 name assigned loopdev: [0xbfe7d704]: add_device done [rc=-38] loopdev: [0xbfe7d704]: set backing file=/.layer23/mnt/readwrite/tmp/xx loopdev: [0xbfe7d704]: device setup requested loopdev: [0xbfe7d704]: setup: backing file open: OK loopdev: [0xbfe7d704]: open /dev/loop7 [rw]: No such file or directory loopdev: [0xbfe7d704]: setup failed [rc=-2] loopdev: [0xbfe7d704]: open /dev/loop7 [rw]: No such file or directory losetup: /dev/loop7: failed to set up loop device: No such file or directory loopdev: [0xbfe7d704]: de-initialize loopdev: [0xbfe7d704]: iter: de-initialize ( no events shown using udevadm monitor) Perhaps v3.1.2 needs additional kernel features, but portage does not complain current kernel-configuration before emerging. Reproducible: Always Portage 2.2.20 (python 2.7.9-final-0, default/linux/x86/13.0, gcc-4.8.4, glibc-2.20-r2, 3.12.21-jason-bare-i686-1403781919 i686) ================================================================= System uname: Linux-3.12.21-jason-bare-i686-1403781919-i686-Intel-R-_Xeon-R-_CPU_5160_@_3.00GHz-with-gentoo-2.2 KiB Mem: 3374184 total, 1123940 free KiB Swap: 0 total, 0 free Timestamp of repository gentoo: Sat, 18 Jul 2015 11:00:01 +0000 sh bash 4.3_p33-r2 ld GNU ld (Gentoo 2.24 p1.4) 2.24 app-shells/bash: 4.3_p33-r2::gentoo dev-lang/perl: 5.20.2::gentoo dev-lang/python: 2.7.9-r1::gentoo dev-util/cmake: 3.2.2::gentoo dev-util/pkgconfig: 0.28-r2::gentoo sys-apps/baselayout: 2.2::gentoo sys-apps/openrc: 0.17::gentoo sys-apps/sandbox: 2.6-r1::gentoo sys-devel/autoconf: 2.69::gentoo sys-devel/automake: 1.11.6-r1::gentoo, 1.13.4::gentoo, 1.14.1::gentoo, 1.15::gentoo sys-devel/binutils: 2.24-r3::gentoo sys-devel/gcc: 4.8.4::gentoo sys-devel/gcc-config: 1.7.3::gentoo sys-devel/libtool: 2.4.6::gentoo sys-devel/make: 4.1-r1::gentoo sys-kernel/linux-headers: 3.18::gentoo (virtual/os-headers) sys-libs/glibc: 2.20-r2::gentoo Repositories: gentoo location: /var/db/portage sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 layer23 location: /dat/local/share/portage masters: gentoo priority: 0 ACCEPT_KEYWORDS="x86" ACCEPT_LICENSE="* -@EULA" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=i686 -fomit-frame-pointer -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /var/bind" CONFIG_PROTECT_MASK="/etc/* /etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.6/ext-active/ /etc/php/cgi-php5.6/ext-active/ /etc/php/cli-php5.6/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-O2 -march=i686 -fomit-frame-pointer -pipe" DISTDIR="/tmp" FCFLAGS="-O2 -march=i686 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync" FFLAGS="-O2 -march=i686 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="C" LC_ALL="de_DE.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j5" PKGDIR="/tmp" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" USE="alsa berkdb bzip2 cli cxx dri fortran gd iconv imap jpeg mbox modules mysql ncurses nptl openmp pam pcre perl png readline sasl session ssl syslog tcpd tiff truetype unicode x86 xml zlib" ABI_X86="32" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1 emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="actions alias auth_basic auth_digest filter authn_default authn_file authz_default authz_groupfile authz_host authz_owner authz_user cgi deflate dumpio dav dav_fs dir env expires headers include info log_config mime mime_magic proxy proxy_balancer proxy_connect proxy_http rewrite setenvif so status userdir unique_id vhost_alias" APACHE2_MPMS="itk" 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 ublox ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" NGINX_MODULES_HTTP="access auth_basic charset dav fastcgi geo gzip limit_req lua map proxy rewrite ssl stub_status" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python_2_7" PYTHON_TARGETS="python2_7" QEMU_SOFTMMU_TARGETS="i386" RUBY_TARGETS="ruby19 ruby20" USERLAND="GNU" VIDEO_CARDS="fbdev glint intel mach64 mga nouveau nv r128 radeon savage sis tdfx trident vesa via vmware dummy v4l" 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, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
(In reply to Nico Rittner from comment #0) > I miss /dev/loop-control and /dev/mapper/control. They are not created > anymore after upgrading from 1.10-r2 to 3.1.2. So loop.ko or dm_mod.ko are > not loaded at first use of losetup/dmsetup like before. workaround is > manually loading look.ko / dm_mod.ko before. no custom udev-rules in use. > both times the same losetup-version (util-linux) and the same kernel is in > use. > This is probably due to the modprobe to kmod switchover. That happened between eudev-2.1.1 and eudev-3.0. Can you test if 2.1.1 worked and 3.0 doesn't? If you don't have time to work on this, can you give me steps to reproduce (I get what you're saying, but the devil is in the details!)
I have a hunch. Could you provide the output of the following commands? rc-update kmod static-nodes --format=tmpfiles
below it is. this guide https://wiki.gentoo.org/wiki/Udev/Upgrade_Guide#udev_204_to_208 refers to the missing dev-nodes, but the change i did is from 216 to 220 (according "udevd --version", seems to be the udev version eudev is based on). just found out that the output of "kmod static-nodes --format=tmpfiles" is written to /run/tmpfiles.d/kmod.conf in kmod-static-nodes but "nobody" seem to read/interprete this file, which contains all information to create the dev-nodes. Who should do so ? Thanks. root @ gw-a.edu / # rc-update binfmt | boot bootmisc | boot devfs | sysinit dmesg | sysinit fsck | boot hostname | boot hwclock | boot keymaps | boot killprocs | shutdown kmod-static-nodes | sysinit local | default localmount | boot loopback | boot modules | boot mount-ro | shutdown mtab | boot netmount | default procfs | boot root | boot savecache | shutdown swap | boot swapfiles | boot sysctl | boot sysfs | sysinit termencoding | boot tmpfiles.dev | sysinit tmpfiles.setup | boot udev | sysinit urandom | boot root @ gw-a.edu ~ $ kmod static-nodes --format=tmpfiles d /dev/cpu 0755 - - - c! /dev/cpu/microcode 0600 - - - 10:184 c! /dev/fuse 0600 - - - 10:229 c! /dev/cuse 0600 - - - 10:203 c! /dev/loop-control 0600 - - - 10:237 d /dev/net 0755 - - - c! /dev/net/tun 0600 - - - 10:200 c! /dev/ppp 0600 - - - 108:0 d /dev/mapper 0755 - - - c! /dev/mapper/control 0600 - - - 10:236 c! /dev/vhost-net 0600 - - - 10:238 d /dev/snd 0755 - - - c! /dev/snd/timer 0600 - - - 116:33 d /dev/snd 0755 - - - c! /dev/snd/seq 0600 - - - 116:1
aah, /lib/rc/sh/tmpfiles.sh seems to do this job. at least it should. will survey.
(In reply to Nico Rittner from comment #4) > aah, /lib/rc/sh/tmpfiles.sh seems to do this job. at least it should. will > survey. In openrc that should be taken care of in sysinit runlevel by tmpfiles.dev (which you have listed there). tmpfiles.setup might also help with this but I don't know the specific details of how this works anymore..
Could you provide the output of these commands? cat /run/tmpfiles.d/kmod.conf ls -l /usr/lib/tmpfiles.d ls -l /run/tmpfiles.d ls -l /etc/tmpfiles.d
hi and sorry for delayed reply. here it is: - cat /run/tmpfiles.d/kmod.conf: (exists but is empty) - /usr/lib/tmpfiles.d and /etc/tmpfiles.d do not exist - /run/tmpfiles.d has kmod.conf (above) since /lib/modules/${KERNEL_VERSION}/modules.devname was also empty (only comment on 1st line) i decided to go back to a previous kernel-build, and the missing device nodes are back again now. i did the change of the kernel (actual same cfg) the same day as new eudev appeared in portage and suspected eudev as cause. will investigate what happened to my kernel-config. since eudev seems not to be the cause here i think we can close this issue. thanks for your support.
Upon reflection a kernel problem rather than an eudev problem. Thank you Nico.
