the client has a nfs share, the server is not more available, the client gone hang at shutdown : * Failed to simply unmount filesystems * Unmounting network filesystems (retry #1) ... i have wait here 5 min but nothing happend so i try press ESC, ENTER, [Ctrl+Alt+ENTF] to force it, no success, i have to cold-reset the box :/ Gentoo Base System version 1.12.0_pre10 Portage 2.0.53_rc7 (default-linux/x86/2005.0, gcc-3.4.4, glibc-2.3.5-r3, 2.6.14-reiser4-r2 i686) ================================================================= System uname: 2.6.14-reiser4-r2 i686 AMD Athlon(TM) XP 2500+ ccache version 2.4 [enabled] dev-lang/python: 2.4.2 sys-apps/sandbox: 1.2.13 sys-devel/autoconf: 2.13, 2.59-r7 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r1 sys-devel/binutils: 2.16.1 sys-devel/libtool: 1.5.20-r1 virtual/os-headers: 2.6.11-r3 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-march=athlon-xp -pipe -O2 -fomit-frame-pointer" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d" CXXFLAGS="-march=athlon-xp -pipe -O2 -fomit-frame-pointer" DISTDIR="/portage/distfiles" FEATURES="autoconfig ccache distlocks sandbox sfperms strict" GENTOO_MIRRORS="*cut*" LANG="de_DE@euro" LINGUAS="de" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 3dnow 3dnowext X alsa apm arts audiofile avi berkdb bitmap-fonts bzip2 cdr crypt cups curl dvd eds emboss encode esd ethereal exif expat fam ffmpeg flac foomaticdb fortran gdbm gif glut gphoto2 gpm gstreamer gtk2 hal idn imagemagick imap imlib ipv6 java jpeg kde lcms libg++ libwww mad mbox mikmod mng motif mp3 mpeg ncurses nls nptl nptlonly ogg oggvorbis opengl oss pam pcre pdflib perl png python qt quicktime readline scanner sdl spell ssl svga tcpd tiff truetype truetype-fonts type1-fonts udev usb userlocales vorbis xine xml2 xmms xv xvid zlib linguas_de userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET, LC_ALL, LDFLAGS
thats probably because of the options you used to mount the nfs file system ... i dont know how much we should really try to compensate for this ...
/etc/fstab mbox:/home /mnt/mbox/home nfs noauto then mounted it with : mount mbox:/home the source of the procedure at the unmount point : * Failed to simply unmount filesystems * Unmounting network filesystems (retry #1) ... should be checked cause its looks like it was stuck there, (loop hangs same where ?) maybe ask the user : Ignore and continue without unmouting the nfs (Y/N) ?, and count a timer 0:59..., after 'Y' pressed or timer reach 0:00 continue the shutdown, to make sure the box gone get pass this point and get shutdowned/restared
it isnt a matter of the init scripts getting hung up, the `umount` call itself gets hung up in the kernel and with the options you specified to mount the nfs drive, there isnt anyway to kill it until the nfs server starts responding again the only thing we could do would be to fork all the calls to `umount` and then do some sleeps and see if the process exited yet all in all, kind of ugly
ok i have take a look at the avaible nfs mount options and found a solution option "soft" This option allows the kernel to time out if the nfs server is not responding for some time. The time can be specified with timeo=time. This option might be useful if your nfs server sometimes doesn't respond or will be rebooted while some process tries to get a file from the server. Usually it just causes lots of trouble thx for point me to the mount options Solved
