lsof 4.81 seemts to be broken, compared to the previously working 4.80-r1. When invoked without arguments, it quietly exits without output. It does *not* crash however (run in gdb). This behaviour was verified by several people on gentoo-users. Reproducible: Always Steps to Reproduce: 1. emerge lsof-4.81 2. run lsof 3. no output? Actual Results: no output shown Expected Results: should have seen list of open file descriptors
(In reply to comment #0) In case it matters, this is on ~x86 but other users reported the same problem on x86_64 etc.
here a 'me too' on amd64. Portage 2.2_rc12 (default/linux/amd64/2008.0/desktop, gcc-4.3.2, glibc-2.8_p20080602-r0, 2.6.27.4r4 x86_64) ================================================================= System uname: Linux-2.6.27.4r4-x86_64-AMD_Athlon-tm-_64_X2_Dual_Core_Processor_6000+-with-glibc2.2.5 Timestamp of tree: Mon, 27 Oct 2008 15:30:09 +0000 ccache version 2.4 [enabled] app-shells/bash: 3.2_p39 dev-java/java-config: 1.3.7, 2.1.6-r1 dev-lang/python: 2.5.2-r8 dev-util/ccache: 2.4-r8 dev-util/cmake: 2.6.2 sys-apps/baselayout: 2.0.0 sys-apps/openrc: 0.3.0-r1 sys-apps/sandbox: 1.2.18.1-r3 sys-devel/autoconf: 2.13, 2.63 sys-devel/automake: 1.4_p6, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.1-r1 sys-devel/binutils: 2.18-r4 sys-devel/gcc-config: 1.4.0-r4 sys-devel/libtool: 2.2.6a virtual/os-headers: 2.6.27-r2 ACCEPT_KEYWORDS="amd64 ~amd64" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=k8 -O2 -msse3 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/kde/4.1/env /usr/kde/4.1/share/config /usr/kde/4.1/shutdown /usr/kde/4.2/env /usr/kde/4.2/share/config /usr/kde/4.2/shutdown /usr/kde/svn/env /usr/kde/svn/share/config /usr/kde/svn/shutdown /usr/share/config" 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/terminfo /etc/udev/rules.d" CXXFLAGS="-march=k8 -O2 -msse3 -pipe" DISTDIR="/var/portage/distfiles" FEATURES="autoconfig buildpkg candy ccache distlocks parallel-fetch preserve-libs protect-owned sandbox sfperms strict unmerge-orphans userfetch" GENTOO_MIRRORS="ftp://ftp.tu-clausthal.de/pub/linux/gentoo/" LANG="de_DE@euro" LC_ALL="de_DE@euro" LDFLAGS="-Wl,-O1" LINGUAS="de" MAKEOPTS="-j3" PKGDIR="/var/portage/packages" 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="/var/tmp" PORTDIR="/var/portage" PORTDIR_OVERLAY="/usr/local/portage/layman/kdesvn-portage /usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="3dnow 3dnowext 7zip S3TC X Xaw3d a52 aac acpi addbookmarks aiglx aim aio akode alias alsa altenburgcards amarok amd64 amr amrnb amrwb aotuv aqua_theme archive asf athena audiofile autoreplace avahi bash-completion berkdb binary-drivers bluetooth boost branding bzip2 cairo captury cdda cddb cdinstall cdparanoia cdr cdrom cdsound cegui clamav cli connectionstatus contactnotes cpudetection cracklib crypt css cups curl dbus depth32 dhcp dio divx dnd double-precision dpms dri dts dv dvb dvbplayer dvbsetup dvd dvdr dvdread eds emboss emerald emovix emul-linux-x86 encode evo exif exiv2 expat exscalibar extra-cardsets fame fasttrack ffmpeg fftw file filter_default filter_legacy filter_light firefox fits flac fontconfig foomaticdb fortran ftp gadu gammu gd gdbm gif gimp gimpprint glitz glut glx gnokii gnutella gpgme gpmhal hddtemp highlight history iconv icq icu id3 id3tag ieee1394 imagemagick inotify ipv6 irc irmc isdnlog jabber java javascript jce joystick jpeg jpeg2k kate kcal kde kdecards kdeenablefinal kdehiddenvisibility kdepim kdeprefix kdm kexi kipi lame lapack lcms lesstif libnotify libsamplerate libwww lirc lm_sensors logitech-mouse lzo lzw mad magic mailbox maildir maps matroska mbox mdnsresponder-compat metric midi mikmod mime mixer mjpeg mmap mmx mmxext mngmp3 mp4 mpeg mpeg2 mplayer msn mtp mudflap mule multilib musepack music nano-syntax ncursesneXt nepomuk net network newspr ngui nls no-old-linux nocd nosendmail nova nowin nowlistening npp nptl nptlonly nsplugin ntfs obex offensive ogg ogg123 ogm openexr opengl openmp oscarpam paste64 pch pcre pda pdf perl physfs pixmaps plasma player plugins png pnm posix ppds pppd python qt3 qt3support qt4 quicktime rar readline recode reflection reiser4 reiserfs remix resolvconf rogue rtc samba sametime sasl scanner scenarios schedule scsi sdl sdl-image sdl-sound sdlaudio sendfile server session slp smp sms sndfile sockets sounds spell spl sqlite sqlite3 srt sse sse-filters sse2 sse3 ssh ssl ssse3 startup-notification statistics stats stencil-buffer stroke subp subtitles svg sysfs sysvipc szip tcpd texteffect textures tga theora threads threadsafe tiff timidity tk tomsfastmath toolbar tools transcode translator truetype tv tv_check tv_combiner tv_pick_cgi type1 unicode unzip usb userlocales utempter v4l v4l2vcd videos visualization vorbis webdav webpresence wifi wireshark wmf wmp wxwindows x264 xanim xcb xcomposite xemacs xext xface xine xml xorg xosd xpm xrandr xrender xscreensaver xskatcards xv xvid xvmc yahoo yiff yv12 zip zlib zsh-completion zvbi" ALSA_CARDS="emu10k1" 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" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="de" LIRC_DEVICES="devinput" USERLAND="GNU" VIDEO_CARDS="vesa v4l fglrx radeon radeonhd" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
From the 4.81 man page: "In the absence of any options, lsof lists all open files belonging to all active processes." So either the man page wasn't updated or lsof is indeed broken. `lsof -u $USER' works fine.
Using strace it appears that both 4.80 and 4.81 are able to process /proc/meminfo and that 4.81 dies(?) on the next item -- a socket (namely /var/run/nscd/socket). Here's the end of the 4.81 strace and the comparable lines (plus a few) from 4.80's strace. FWIW, I'll also attach the 2 straces. ########## lsof_4.81 ########## open("/proc/meminfo", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f64876ca000 read(4, "MemTotal: 3920128 kB\nMemFree"..., 1024) = 630 close(4) = 0 munmap(0x7f64876ca000, 4096) = 0 close(5) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- close(6) = 0 rt_sigaction(SIGALRM, {0x410d70, [ALRM], SA_RESTORER|SA_RESTART, 0x7f64871a4430}, {SIG_DFL, [ALRM], SA_RESTORER|SA_RESTART, 0x7f64871a4430}, 8) = 0 alarm(5) = 0 wait4(-1, NULL, 0, NULL) = 15859 alarm(0) = 5 rt_sigaction(SIGALRM, {SIG_DFL, [ALRM], SA_RESTORER|SA_RESTART, 0x7f64871a4430}, {0x410d70, [ALRM], SA_RESTORER|SA_RESTART, 0x7f64871a4430}, 8) = 0 exit_group(0) = ? ########## lsof_4.80 ########## open("/proc/meminfo", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4b81f6b000 read(4, "MemTotal: 3920128 kB\nMemFree"..., 1024) = 630 close(4) = 0 munmap(0x7f4b81f6b000, 4096) = 0 * socket(PF_FILE, SOCK_STREAM, 0) = 4 * fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0 * connect(4, {sa_family=AF_FILE, path="/var/run/nscd/socket"...}, 110) = -1 ENOENT (No such file or directory) * close(4) = 0 * socket(PF_FILE, SOCK_STREAM, 0) = 4 * fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0 * connect(4, {sa_family=AF_FILE, path="/var/run/nscd/socket"...}, 110) = -1 ENOENT (No such file or directory) * close(4) = 0 ...[snip]... exit_group(0) = ?
Created attachment 170046 [details] strace of lsof-4.80
Created attachment 170048 [details] strace of lsof-4.81
Fixed in lsof-4.81-r1. There was an over-zealous rejection of open file listings when no options were specified on the command line and security was enabled. The upstream author pinned down the bug after I found out that enabling HASSECURITY and HASNOSOCKSECURITY triggered the bug.
