After upgrading to nfs-utils-1.0.6-r6 the other day, my nfs-server started to experienced hard lockups (magic-SysRq fails -- hard reset or power cycle required) several minutes after any clients accessed an NFS share. Usually I was using Rhythmbox at the time. No useful information appeared to have been left in any log files after rebooting. After downgrading back to 1.0.6-r5 the lockups have stopped. Reproducible: Always Steps to Reproduce: 1. 2. 3. please daemons # emerge info Portage 2.0.51-r8 (default-linux/x86/2004.3, gcc-3.4.3, glibc-2.3.4.20041102-r0, 2.6.9-gentoo-r3 i686) ================================================================= System uname: 2.6.9-gentoo-r3 i686 AMD Athlon(tm) MP 2000+ Gentoo Base System version 1.6.7 Python: dev-lang/python-2.2.3-r5,dev-lang/python-2.3.4 [2.3.4 (#1, Aug 20 2004, 19:09:18)] ccache version 2.3 [enabled] dev-lang/python: 2.2.3-r5, 2.3.4 sys-devel/autoconf: 2.59-r6, 2.13 sys-devel/automake: 1.8.5-r2, 1.5, 1.4_p6, 1.6.3, 1.7.9, 1.9.3 sys-devel/binutils: 2.15.91.0.2, 2.15.94.0.1 sys-devel/libtool: 1.5.2-r7 virtual/os-headers: 2.6.8.1-r1 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CFLAGS="-march=athlon-mp -O3 -fweb -ftracer -ffast-math -pipe -fomit-frame-pointer" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.3/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3/share/config /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/ /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=athlon-mp -O3 -fweb -ftracer -ffast-math -pipe -fomit-frame-pointer -fvisibility-inlines-hidden" DISTDIR="/usr/local/portage/distfiles" FEATURES="autoaddcvs autoconfig ccache distlocks fixpackages nodoc noinfo sandbox sfperms" GENTOO_MIRRORS="ftp:///ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/ http://gentoo.binarycompass.org http://gentoo.ccccom.com http://gentoo.llarian.net/ ftp://mirrors.sec.informatik.tu-darmstadt.de/gentoo/" MAKEOPTS="-j4" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/usr/local/portage" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage/ebuilds" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="3dnow 3dnowex M X aac aalib aim alsa apache2 arts artswrappersuid atlas avi ba-completion berkdb bitmap-fonts blas bootspla bzlib cddb cdparanoia cdr crypt cscope cups curl curlwrappers dga directfb divx4linux djbfft dmx dnd dv dvd encode erandom f77 faac faad fam fbcon ffmpeg fftw flac foomaticdb fortran freetype gd gdbm ggi gif gimpprint gnome gnuplot gphoto2 gpm gs gstreamer gtk gtk2 gtkhtml hal imagemagick imap imlib imlib2 ithreads java javascript jikes jp2 jpeg jpeg2k kde lapack lcmslibg++ live lmtp lzo lzw lzw-tiff mad mikmod mmx mmx2 mng mozdomi moznocompose moznoirc moznomail mozsvg mozxmlterm mp3 mpeg mpeg4 mplayer ncurses netcdf network nls no-old-linux nptl nptlonly nvidiaodbc offensive oggvorbis opengl oss pam passfile pcap pcre pdflib perl pic plotutils png ppds python qt qtmt quicktime readline real recode rtc samba sdl slang snmp spell sqlite sse sse2 ssl stencil-buffer svg svga tcpd tetex threads tiff transcode truetype type1 usb wmf x86 xanim xine xml xml2 xv xvid xvmc yahoo zlib"
Argh, the lockups persist, just on a longer time scale, even if NFS is not mounted. I will have to figure out more what the root cause of this is.