Comment 1 for bug 185632

With the options "noapic" and "notsc" plus ntp-server the clock remains sync but with high cpu usage... look this:

  JOBID PARTITION NAME USER ST TIME NODES NODELIST(REASON)
    361 pnc Bet7_pon pnc R 1:08:07 4 teoria,teoria[1-3]
    360 testes teste1MA rodrigo R 1:59:50 2 teoria[5,8]
teoria9: Qui Jan 24 21:36:54 BRT 2008
teoria1: Qui Jan 24 21:36:54 BRT 2008
teoria2: Qui Jan 24 21:36:54 BRT 2008
teoria5: Qui Jan 24 21:36:54 BRT 2008
teoria3: Qui Jan 24 21:36:54 BRT 2008
teoria7: Qui Jan 24 21:36:54 BRT 2008
teoria4: Qui Jan 24 21:36:54 BRT 2008

-> teoria8: Qui Jan 24 20:26:36 BRT 2008 <-

teoria10: Qui Jan 24 21:36:55 BRT 2008
teoria6: Qui Jan 24 21:36:55 BRT 2008

After 2:00 hs the teoria8's clock delayed 1:10 hs!

rodrigo@teoria8:~$ ps aux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 4020 864 ? Ss 10:00 0:00 /sbin/init
root 2 0.0 0.0 0 0 ? S< 10:00 0:00 [kthreadd]
root 3 0.0 0.0 0 0 ? S< 10:00 0:00 [migration/0]
root 4 0.0 0.0 0 0 ? S< 10:00 0:00 [ksoftirqd/0]
root 5 0.0 0.0 0 0 ? S< 10:00 0:00 [watchdog/0]
root 6 0.0 0.0 0 0 ? S< 10:00 0:00 [migration/1]
root 7 0.0 0.0 0 0 ? S< 10:00 0:00 [ksoftirqd/1]
root 8 0.0 0.0 0 0 ? S< 10:00 0:00 [watchdog/1]
root 9 0.0 0.0 0 0 ? S< 10:00 0:00 [events/0]
root 10 0.0 0.0 0 0 ? S< 10:00 0:00 [events/1]
root 11 0.0 0.0 0 0 ? S< 10:00 0:00 [khelper]
root 45 0.0 0.0 0 0 ? S< 10:00 0:00 [kblockd/0]
root 46 0.0 0.0 0 0 ? S< 10:00 0:00 [kblockd/1]
root 49 0.0 0.0 0 0 ? S< 10:00 0:00 [kacpid]
root 50 0.0 0.0 0 0 ? S< 10:00 0:00 [kacpi_notify]
root 184 0.0 0.0 0 0 ? S< 10:00 0:00 [kseriod]
root 233 0.0 0.0 0 0 ? S 10:00 0:00 [pdflush]
root 234 0.0 0.0 0 0 ? S 10:00 0:00 [pdflush]
root 235 0.0 0.0 0 0 ? S< 10:00 0:00 [kswapd0]
root 279 0.0 0.0 0 0 ? S< 10:00 0:00 [aio/0]
root 280 0.0 0.0 0 0 ? S< 10:00 0:00 [aio/1]
root 1491 0.0 0.0 0 0 ? S< 10:00 0:00 [ksuspend_usbd]
root 1494 0.0 0.0 0 0 ? S< 10:00 0:00 [khubd]
root 1512 0.0 0.0 0 0 ? S< 10:00 0:00 [ata/0]
root 1515 0.0 0.0 0 0 ? S< 10:00 0:00 [ata/1]
root 1518 0.0 0.0 0 0 ? S< 10:00 0:00 [ata_aux]
root 1587 0.0 0.0 0 0 ? S< 10:00 0:00 [khpsbpkt]
root 1863 0.0 0.0 0 0 ? S< 10:00 0:00 [scsi_eh_0]
root 1864 0.0 0.0 0 0 ? S< 10:00 0:00 [scsi_eh_1]
root 2324 0.0 0.0 0 0 ? S< 10:00 0:00 [scsi_eh_2]
root 2325 0.0 0.0 0 0 ? S< 10:00 0:00 [scsi_eh_3]
root 2347 0.0 0.0 0 0 ? S< 10:00 0:00 [scsi_eh_4]
root 2348 0.0 0.0 0 0 ? S< 10:00 0:00 [scsi_eh_5]
root 2404 0.0 0.0 0 0 ? S< 10:00 0:00 [scsi_eh_6]
root 2405 0.0 0.0 0 0 ? S< 10:00 0:00 [scsi_eh_7]
root 2544 0.0 0.0 0 0 ? S< 10:00 0:00 [knodemgrd_0]
root 2722 0.0 0.0 0 0 ? S< 10:00 0:00 [kjournald]
root 2876 0.0 0.0 19168 960 ? S<s 10:00 0:01 /sbin/udevd --daemon
root 3410 0.0 0.0 0 0 ? S< 10:00 0:00 [kpsmoused]
daemon 3768 0.0 0.0 8084 576 ? S<s 10:00 0:00 /sbin/portmap
root 4016 0.0 0.0 0 0 ? S< 10:00 0:00 [rtl8187]
statd 4201 0.0 0.0 10208 800 ? S<s 10:01 0:00 /sbin/rpc.statd
root 4277 0.0 0.0 0 0 ? S< 10:01 0:00 [rpciod/0]
root 4278 0.0 0.0 0 0 ? S< 10:01 0:00 [rpciod/1]
root 4318 0.0 0.0 0 0 ? S 10:01 0:00 [lockd]
root 4451 0.0 0.0 0 0 ? S< 10:01 0:00 [kjournald]
root 4767 0.0 0.0 3864 588 tty4 Ss+ 10:01 0:00 /sbin/getty 38400 tty4
root 4768 0.0 0.0 3864 588 tty5 Ss+ 10:01 0:00 /sbin/getty 38400 tty5
root 4770 0.0 0.0 3864 588 tty2 Ss+ 10:01 0:00 /sbin/getty 38400 tty2
root 4773 0.0 0.0 3864 588 tty3 Ss+ 10:01 0:00 /sbin/getty 38400 tty3
root 4774 0.0 0.0 3864 592 tty1 Ss+ 10:01 0:00 /sbin/getty 38400 tty1
root 4775 0.0 0.0 3864 588 tty6 Ss+ 10:01 0:00 /sbin/getty 38400 tty6
syslog 4817 0.0 0.0 12296 780 ? Ss 10:01 0:00 /sbin/syslogd -u syslog
root 4837 0.0 0.0 8120 584 ? S 10:01 0:00 /bin/dd bs 1 if /proc/kmsg of /var/run/klogd/kmsg
klog 4840 0.0 0.0 6408 3100 ? Ss 10:01 0:00 /sbin/klogd -P /var/run/klogd/kmsg
root 4859 0.0 0.0 48908 1180 ? Ss 10:01 0:00 /usr/sbin/sshd
root 4902 0.0 0.0 55396 1356 ? Sl 10:01 0:00 /usr/sbin/ypbind
root 4921 0.0 0.0 32880 744 ? Ssl 10:01 0:0 [glusterfsd]
ntp 4958 0.0 0.0 19156 1288 ? Ss 10:01 0:00 /usr/sbin/ntpd -p /var/run/ntpd.pid -u 105:111 -g
daemon 4973 0.0 0.0 16432 428 ? Ss 10:01 0:00 /usr/sbin/atd
root 4984 0.0 0.0 20944 860 ? Ss 10:01 0:00 /usr/sbin/cron
root 5003 0.0 0.0 33200 2048 ? S 10:01 0:00 /usr/local/sbin/slurmd
root 8071 0.0 0.0 63892 2820 ? Ss 20:08 0:00 sshd: rodrigo [priv]
rodrigo 8074 0.0 0.0 64240 1760 ? S 20:08 0:00 sshd: rodrigo@notty
rodrigo 8076 166 14.4 3260880 585472 ? Rsl 20:08 29:39 /programas/g03/linda-exe/l914.exel 402653184 BetF7_ponte_com_1N.chk 1 /scratch/Ga
root 8161 0.0 0.0 63892 2856 ? Ss 20:26 0:00 sshd: rodrigo [priv]
rodrigo 8163 0.0 0.0 64240 1800 ? S 20:26 0:00 sshd: rodrigo@pts/0
rodrigo 8164 0.0 0.0 19376 2312 pts/0 Ss 20:26 0:00 -bash
rodrigo 8166 0.0 0.0 15064 1148 pts/0 R+ 20:26 0:00 ps aux

Ubuntu 7.10 functions perfectly.