Ever since upgrading from sys-fs/udev-104-r12 to sys-fs/udev-114 I've been unable to make LVM snapshots. I use snapshots to backup my Xen VMs from dom0, and have been doing so in this way for months. Since the update it seems almost all snapshot lvcreates "fail" like this: # /sbin/lvcreate -L2G --quiet -pr -s -n ${lv}_backup ${lv} LV vgxen/${lv}_backup in use: not deactivating Couldn't deactivate new snapshot. # lvscan | grep ${lv} ACTIVE '${lv}' [3.00 GB] inherit ACTIVE '${lv}_backup' [2.00 GB] inherit Annoyingly this is an "almost always" failure, sometimes the lvcreate works! The resultant LV when it fails is not a snapshot (as shown above), but appears to be a regular LV, naturally with no filesystem. Luckily for me this is a good thing, as the failure to mount the snapshot is caught preventing the backup from being screwed up. I'm seeing exactly the same problem on multiple servers, which have all had all config files updated, and udevd restarted separately as they can't be rebooted easily. This exact same problem has been seen by multiple distributions over the last year or so from my googling, so why Gentoo is only seeing it now is beyond me. A rather hackish stopgap "solution" which has worked for me is this: http://www.scalix.com/forums/viewtopic.php?p=34069#34069 Portage 2.1.3.9 (hardened/amd64/multilib, gcc-3.4.6, glibc-2.5-r4, 2.6.18-xen x86_64) ================================================================= System uname: 2.6.18-xen x86_64 Dual-Core AMD Opteron(tm) Processor 2214 Timestamp of tree: Thu, 20 Sep 2007 21:00:01 +0000 app-shells/bash: 3.2_p17 dev-lang/python: 2.4.4-r4 dev-python/pycrypto: 2.0.1-r6 sys-apps/baselayout: 1.12.9-r2 sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.61 sys-devel/automake: 1.10 sys-devel/binutils: 2.17-r1 sys-devel/gcc-config: 1.3.16 sys-devel/libtool: 1.5.24 virtual/os-headers: 2.6.21 ACCEPT_KEYWORDS="amd64" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=opteron -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /var/qmail/alias /var/qmail/control" CONFIG_PROTECT_MASK="/etc/env.d /etc/gconf /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-march=opteron -O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig buildpkg distlocks metadata-transfer parallel-fetch sandbox sfperms strict unmerge-orphans userfetch" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo" PKGDIR="/usr/portage/packages/opteron" 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 --filter=H_**/files/digest-*" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/portage/local/layman/xen" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="amd64 apache2 bash-completion berkdb cgi cjk cli cracklib crypt ctype curl expat extraengine fastbuild fastcgi force-cgi-redirect ftp gd gdbm gencertdaily gpm hardened hardenedphp hash hpn iconv idn imap ioemu iproute2 ipv6 justify memlimit midi mpm-worker mysql mysqli ncurses nls noauthcram nptl nptlonly pam pcre pdo perl pic posix postgres pygrub python readline reflection ruby screen session simplexml snmp soap sockets spell spl sqlite sse sse2 ssl status tcpd threads tidy tokenizer truetype unicode urandom xml xmlreader xmlrpc xmlwriter xorg xsl zip zlib" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route share shm softvol" ELIBC="glibc" INPUT_DEVICES="mouse keyboard" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, LINGUAS, MAKEOPTS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
*** This bug has been marked as a duplicate of bug 189404 ***
