I have a weird problem.
I cannot reboot my Debian Etch Server and one core shows as using 100% CPU but nothing appears to be using it????
I have tried kill -9 and killall via htop on the nbd mount and poweroff and shutdown commands but gett nothing.
I also killed a number of other processes but no joy.
Anyone have any ideas? I just want to reboot it..... never had this happen before on Debian.
Disable the tree-view in htop (F5 I think) to get a proper sorting.
the non-tree view looked identical but rearranged the list.
Here is ps aux instead
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 6124 680 ? Ss Oct07 0:00 init [2]
root 2 0.0 0.0 0 0 ? S Oct07 0:00 [migration/0]
root 3 0.0 0.0 0 0 ? SN Oct07 0:00 [ksoftirqd/0]
root 4 0.0 0.0 0 0 ? S Oct07 0:00 [watchdog/0]
root 5 0.0 0.0 0 0 ? S Oct07 0:00 [migration/1]
root 6 0.0 0.0 0 0 ? SN Oct07 0:00 [ksoftirqd/1]
root 7 0.0 0.0 0 0 ? S Oct07 0:00 [watchdog/1]
root 8 0.0 0.0 0 0 ? S< Oct07 0:00 [events/0]
root 9 0.0 0.0 0 0 ? S< Oct07 0:00 [events/1]
root 10 0.0 0.0 0 0 ? S< Oct07 0:00 [khelper]
root 11 0.0 0.0 0 0 ? S< Oct07 0:00 [kthread]
root 16 0.0 0.0 0 0 ? S< Oct07 0:00 [kblockd/0]
root 17 0.0 0.0 0 0 ? S< Oct07 0:00 [kblockd/1]
root 18 0.0 0.0 0 0 ? S< Oct07 0:00 [kacpid]
root 116 0.0 0.0 0 0 ? S< Oct07 0:00 [khubd]
root 118 0.0 0.0 0 0 ? S< Oct07 0:00 [kseriod]
root 169 0.0 0.0 0 0 ? S< Oct07 0:17 [kswapd0]
root 170 0.0 0.0 0 0 ? S< Oct07 0:00 [aio/0]
root 171 0.0 0.0 0 0 ? S< Oct07 0:00 [aio/1]
root 689 0.0 0.0 0 0 ? S< Oct07 0:00 [ata/0]
root 690 0.0 0.0 0 0 ? S< Oct07 0:00 [ata/1]
root 691 0.0 0.0 0 0 ? S< Oct07 0:00 [ata_aux]
root 744 0.0 0.0 0 0 ? S< Oct07 0:00 [scsi_eh_0]
root 745 0.0 0.0 0 0 ? S< Oct07 0:00 [scsi_eh_1]
root 970 0.0 0.0 0 0 ? D< Oct07 0:21 [kjournald]
root 1491 0.0 0.0 0 0 ? S< Oct07 0:00 [kedac]
root 1735 0.0 0.0 0 0 ? S< Oct07 0:00 [kmirrord]
root 2025 0.0 0.0 3728 592 ? Ss Oct07 0:00 /sbin/syslogd
root 2031 0.0 0.0 2656 412 ? Ss Oct07 0:00 /sbin/klogd -x
root 2127 0.0 0.0 25840 1236 ? Ss Oct07 0:00 /usr/sbin/sshd
ntp 2154 0.0 0.0 14080 1472 ? Ss Oct07 0:00 /usr/sbin/ntpd -p /var/run/ntpd.pid -u 101:103 -g
root 2164 0.0 0.0 11496 804 ? Ss Oct07 0:00 /usr/sbin/cron
root 2239 0.0 0.0 2652 536 tty1 Ss+ Oct07 0:00 /sbin/getty 38400 tty1
root 2240 0.0 0.0 2656 540 tty2 Ss+ Oct07 0:00 /sbin/getty 38400 tty2
root 2241 0.0 0.0 2656 540 tty3 Ss+ Oct07 0:00 /sbin/getty 38400 tty3
root 2242 0.0 0.0 2656 540 tty4 Ss+ Oct07 0:00 /sbin/getty 38400 tty4
root 2243 0.0 0.0 2656 540 tty5 Ss+ Oct07 0:00 /sbin/getty 38400 tty5
root 2244 0.0 0.0 2656 540 tty6 Ss+ Oct07 0:00 /sbin/getty 38400 tty6
root 3104 0.0 0.0 0 0 ? S 11:54 0:01 [pdflush]
root 3202 0.0 0.0 0 0 ? S 13:56 0:00 [pdflush]
root 3549 0.0 0.0 11664 908 ? DN 21:20 0:00 mount /dev/nb0 /mnt/
root 3580 0.0 0.0 11664 908 ? D 21:25 0:00 mount /dev/nb0 /mnt/
root 3591 0.0 0.0 6960 724 ? D 21:28 0:00 shutdown -r 0 w
root 3700 0.0 0.0 2508 356 ? D 21:48 0:00 reboot -f
root 3722 0.0 0.0 2508 320 ? D 21:54 0:00 rmmod -f nbd
root 3737 0.0 0.0 6956 716 ? D 22:02 0:00 shutdown -r 0 w
root 3739 0.0 0.0 36792 2724 ? Ss 22:03 0:00 sshd: root@pts/5
root 3741 0.0 0.0 11548 1992 pts/5 Ss 22:03 0:00 -bash
root 3750 0.0 0.0 9656 1056 pts/5 R+ 22:30 0:00 ps aux
Hello try also command
init 6
eventually
sync ; shutdown -r now
Regarding core utilization, are you sure, that you are using the right kernel version???
Please correct me, if I am wrong, but I suppose that default kernel is not aware more than one core, maybe you should use SMP kernel version.
Bruss