After upgrading to =sys-apps/util-linux-2.15, it's impossible for me to mount more then 8 loop devices, loop being either iso or squashfs files. In order to mount more devices I tried the following (separately): - modprobe loop max_loop=64 - in /etc/modprobe.d/loop.conf I added options loop max_loop=20 and launch update-modules - compile loop in kernel and add max_loop=64 to my kernel boot parameters - change loop.c in kernel sources and changed nr = 8; to nr = 32: <------>} else { <------><------>nr = 32; <------><------>range = 1UL << (MINORBITS - part_shift); <------>} - manually created more loop devices with for i in $(seq 0 25); do mknod -m0660 /dev/loop$i b 7 $i; chown root.disk /dev/loop$i; done - tried gentoo kernels 2.6.28, all 2.6.29 and git 2.6.30 with the previous setups - for every step I did, I checked the nodes created in /dev (every time the number of automatically created devices was correct) and a reboot in order to check the changes. All the above steps failed, and when I tried to mount the 9th device I got "mount: could not find any free loop device". After reverting to sys-apps/util-linux-2.14.2, I can now mount again more then 8 devices. Reproducible: Always Steps to Reproduce: 1. upgrade to sys-apps/util-linux-2.15 2. try to mount more then 8 loop devices Actual Results: After the 8th mounted device an error occurs and the device is not mounted: mount: could not find any free loop device Expected Results: The correct number of loop devices should be mounted, depending on the parameters sent to loop module. The same thing happened as in my main OS in a virtual machine with only the minimal Gentoo installed and no USE flags: only "emerge --sync".
I used the same make.conf on both systems (real and virtual), but on the virtual one I removed all USE flags emerge --info Portage 2.2_rc33 (default/linux/amd64/2008.0/no-multilib, gcc-4.3.3, glibc-2.9_p20081201-r2, 2.6.29-gentoo-r4-nodebug x86_64) ================================================================= System uname: Linux-2.6.29-gentoo-r4-nodebug-x86_64-AMD_Athlon-tm-_64_X2_Dual_Core_Processor_5600+-with-gentoo-2.0.0 Timestamp of tree: Tue, 19 May 2009 11:30:01 +0000 app-shells/bash: 4.0_p24 dev-java/java-config: 2.1.7 dev-lang/python: 2.6.2 dev-util/cmake: 2.6.4 sys-apps/baselayout: 2.0.0 sys-apps/openrc: 0.4.3-r2 sys-apps/sandbox: 1.9 sys-devel/autoconf: 2.13, 2.63-r1 sys-devel/automake: 1.5, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.2 sys-devel/binutils: 2.19.1-r1 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.2.6a virtual/os-headers: 2.6.29 ACCEPT_KEYWORDS="amd64 ~amd64" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=athlon64 -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /var/lib/hsqldb" 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/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/splash /etc/terminfo /etc/udev/rules.d" CXXFLAGS="-march=athlon64 -O2 -pipe" DISTDIR="/media/Musica/Angela/distfiles" FEATURES="distlocks fixpackages metadata-transfer parallel-fetch preserve-libs protect-owned sandbox sfperms strict unmerge-orphans userfetch" GENTOO_MIRRORS=" ftp://ftp.roedu.net/pub/mirrors/gentoo.org/ http://ftp.roedu.net/pub/mirrors/gentoo.org/ http://mirrors.evolva.ro/gentoo/ ftp://mirrors.evolva.ro/gentoo/ http://ftp.romnet.org/gentoo/ ftp://ftp.romnet.org/gentoo/ ftp://distro.ibiblio.org/pub/linux/distributions/gentoo/ http://distro.ibiblio.org/pub/linux/distributions/gentoo/ ftp://ftp.ucsb.edu/pub/mirrors/linux/gentoo/ http://ftp.ucsb.edu/pub/mirrors/linux/gentoo/ ftp://ftp.tu-clausthal.de/pub/linux/gentoo/ ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror/ ftp://linux.rz.ruhr-uni-bochum.de/gentoo-mirror/ http://ftp.uni-erlangen.de/pub/mirrors/gentoo ftp://ftp.uni-erlangen.de/pub/mirrors/gentoo ftp://ftp.join.uni-muenster.de/pub/linux/distributions/gentoo ftp://ftp.wh2.tu-dresden.de/pub/mirrors/gentoo ftp://ftp.join.uni-muenster.de/pub/linux/distributions/gentoo http://mirrors.sec.informatik.tu-darmstadt.de/gentoo/ http://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/ ftp://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/ ftp://ftp.gentoo.mesh-solutions.com/gentoo/ ftp://pandemonium.tiscali.de/pub/gentoo/ http://gentoo.mneisen.org/ ftp://ftp.mneisen.org/gentoo " LANG="ro_RO.UTF-8" LC_ALL="ro_RO.UTF-8" LDFLAGS="-Wl,-O1" LINGUAS="en ro en_GB" MAKEOPTS="-j3" PKGDIR="/usr/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="/media/Musica/Angela" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/portage/local/x11 /usr/portage/local/kde-testing /usr/portage/local/cristi" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="3dnow 3dnowext 7zip X a52 aac aalib ac3 acl acpi aio akonadi alsa amd64 apache2 autoipd avahi bash-completion berkdb bittorrent bluetooth branding bzip2 cairo cdaudio cddb cdparanoia cdr chm cisco cli connection-sharing connectionstatus consolekit cracklib crypt css cups curl custom-optimization daap dbus dc1394 dhcp dirac disk-partition dri dvb dvd dvdr dvdread emovix encode exiv2 expat extensions extrafilters faac faad fam fame fbcondecor fbsplash ffmpeg flac fortran ftp fuse gdbm geoip gif gimp glib gnokii gphoto2 gpm graphviz gstreamer hal history htmlhandbook huro iconv id3tag ieee1394 imagemagick ipod ipv6 irc isdnlog jack java jingle jpeg kate kde kde4 kdeenablefinal kdehiddenvisibility kipi l7filter lame ldap libnotify libsamplerate libv4l2 libwww lirc live livecd lm_sensors lzo mad matroska mdnsresponder-compat midi mjpeg mmap mmx mmxext mp2 mp3 mp4 mpeg mudflap musepack musicbrainz mysql nat ncurses network networkmanager newspr nls nowlistening nptl nptlonly nsplugin ntfs nuv odbc offensive ogg openal opengl openmp pam pcre pdf perl php plasma png ppds pppd pulseaudio python qt4 quicktime radio rar rdesktop readline redland reflection rss rtc rtsp samba schroedinger sdl semantic-desktop session skins slang smartcard sndfile speex spell spl sqlite sse sse2 ssl startup-notification statistics svg symlink sysfs taglib tcpd teletext theora threads threadsafe thumbnail tiff timidity truetype tv_check tv_combiner tv_pick_cgi twolame unicode usb utils v4l v4l2 vcd visualization vnc vorbis wavpack webkit wma x264 xcb xcomposite xinerama xml xorg xscreensaver xv xvid yahoo yv12 zeroconf zip zlib zvbi" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" 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 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 proxy_connect proxy proxy_http" CAMERAS="*" ELIBC="glibc" INPUT_DEVICES="evdev keyboard mouse vmmouse virtualbox " KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en ro en_GB" LIRC_DEVICES="leadtek_0010" USERLAND="GNU" VIDEO_CARDS="fglrx fbdev radeon v4l vesa vga vmware radeonhd virtualbox " Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Looks, like this may be of interest: http://git.kernel.org/?p=utils/util-linux-ng/util-linux-ng.git;a=commit;h=72f6902e435612f848cbe9993ce6298da8af996c The comment there hints, that the real problem may lie within udev rules.
Perhaps the block in /lib/udev/rules.d/40-gentoo.rules with "old devfs path", referring to bug 195839 is an indirect cause.
A duplicate of bug 269264?
The difference is that I am unable to mount more devices, as the bug 269264 says: "by hand i can use 32 loop-devices!", even using the same util-linux version.
*** This bug has been marked as a duplicate of bug 269264 ***
