I'm using ntpd - on a 64-bit system. Everything seems to work fine (except the polling interval first increases from 64 to 128 and maybe to 256 but then goes back to 64. That is not necessarily abnormal.) The output of "ntpdc -c loopinfo" is a bit odd after a while: offset: 0.002014 s frequency: 95.548 ppm poll adjust: 4294967266 watchdog timer: 226 s "poll adjust" seems to have a signed/unsigned problem. When I start/restart ntpd I get normal values (0, 6, 12...) but after a while I get that large number. I'm not sure if this affects the actual operation of ntpd or is only a cosmetic issue. Reproducible: Always
What version of ntp are you using? How long time does ntpd have to run before you see this problem? Please also post your emerge --info. I have just tested against a ntpd (net-misc/ntp-4.2.4-r1) that have been running for about 55 days and it gives normal output. jonas@obelix ~ $ ntpdc -c loopinfo offset: 0.000546 s frequency: -2.077 ppm poll adjust: 30 watchdog timer: 316 s Portage 2.1.2.7 (default-linux/amd64/2006.1, gcc-4.1.2, glibc-2.5-r2, 2.6.19-gentoo-r5 x86_64) ================================================================= System uname: 2.6.19-gentoo-r5 x86_64 AMD Athlon(tm) 64 Processor 3700+ Gentoo Base System release 1.12.9 Timestamp of tree: Fri, 01 Jun 2007 21:30:01 +0000 ccache version 2.4 [enabled] dev-java/java-config: 1.3.7, 2.0.32 dev-lang/python: 2.4.4-r4 dev-python/pycrypto: 2.0.1-r5 dev-util/ccache: 2.4-r7 sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.61 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10 sys-devel/binutils: 2.16.1-r3 sys-devel/gcc-config: 1.3.16 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.17-r2 ACCEPT_KEYWORDS="amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=athlon64 -O3 -pipe -fomit-frame-pointer" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-march=athlon64 -O3 -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="ccache collision-protect distlocks metadata-transfer multilib-strict sandbox sfperms strict test" GENTOO_MIRRORS="ftp://gentoo.mirror.web4u.cz/ http://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/ ftp://pandemonium.tiscali.de/pub/gentoo/ http://gentoo.mirror.web4u.cz/ http://mirrors.sec.informatik.tu-darmstadt.de/gentoo/" LC_ALL="en_DK.utf8" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" 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" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="amd64 apache2 berkdb bitmap-fonts cli cracklib crypt cups dri fortran gdbm gpm iconv imap isdnlog jpeg libg++ midi mudflap mysql ncurses nls nptl nptlonly openmp pam pcre perl png ppds pppd python readline reflection session spl ssl tcpd test truetype-fonts type1-fonts unicode xml xorg zlib" 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 mulaw multi null plug rate route share shm softvol" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU" VIDEO_CARDS="apm ark chips cirrus cyrix dummy fbdev glint i128 i810 mach64 mga neomagic nv r128 radeon rendition s3 s3virge savage siliconmotion sis sisusb tdfx tga trident tseng v4l vesa vga via vmware voodoo" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LDFLAGS, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY
You only see it if ntpd thinks the polling interval should be lowered. If you have very good network and very good time source you won't see it most likely ever. I OC quite a bit and that might cause more drifting to my computer clock. Do you ever see a negative 'poll adjust' value? If you don't then you might see the problem if you tried with worse time sources. Im using ntpd 4.2.4p0. And it really seems that this is only cosmetic issue - but still a bug. Ntpd seems to work flawlessly AFAICS. If noone responds I can try to see the sources myself to see if this is just a problem with signedness or something. Portage 2.1.2.7 (default-linux/amd64/2007.0/desktop, gcc-4.1.2, glibc-2.5-r3, 2.6.21.2 x86_64) ================================================================= System uname: 2.6.21.2 x86_64 Intel(R) Core(TM)2 CPU 6400 @ 2.13GHz Gentoo Base System release 1.12.9 Timestamp of tree: Thu, 28 Jun 2007 09:50:01 +0000 dev-lang/python: 2.4.4-r4 dev-python/pycrypto: 2.0.1-r5 sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.61 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10 sys-devel/binutils: 2.17 sys-devel/gcc-config: 1.3.16 sys-devel/libtool: 1.5.23b virtual/os-headers: 2.6.17-r2 ACCEPT_KEYWORDS="amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -march=nocona -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/share/X11/xkb /usr/share/config" CONFIG_PROTECT_MASK="/etc/env.d /etc/gconf /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-O2 -march=nocona -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="distlocks metadata-transfer parallel-fetch sandbox sfperms strict" GENTOO_MIRRORS="ftp://trumpetti.atm.tut.fi/gentoo/ " LANG="en_US.UTF-8" LC_ALL="en_US.UTF-8" MAKEOPTS="-j3" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --de lete --delete-after --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --fil ter=H_**/files/digest-*" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://trumpetti.atm.tut.fi/gentoo-portage" USE="X aac acl acpi alsa amd64 berkdb bitmap-fonts bzip2 cairo cdr cli cracklib crypt cups dbus dri dvd d vdr dvdread eds emboss encode evo fam firefox flac fortran gdbm gif gpm gstreamer hal iconv isdnlog jpeg kerberos libg++ mad midi mikmod mmx mp3 mpeg mudflap ncurses nls nptl nptlonly ogg opengl openmp pam pcre pdf perl png pppd python qt3 qt3support qt4 quicktime readline reflection sdl session spell spl sse sse2 ssl svg tcpd theora tiff truetype truetype-fonts type1-fonts unicode vorbis xml xorg xv zlib" ALSA_CARDS ="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hd a-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adp cm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mu law multi null plug rate route share shm softvol" ELIBC="glibc" INPUT_DEVICES="keyboard evdev" KERNEL="li nux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU" V IDEO_CARDS="nvidia" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LDFLAGS, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_ FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY
I tried to find the problem and basically found it. I reported it upstream: https://support.ntp.org/bugs/show_bug.cgi?id=886
this will be fixed in the next version, thanks for reporting this upstream !
