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CodAv
Apprentice
Joined: 09 May 2004
Posts: 170
Location: Essen, Germany
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 Posted: Mon Jan 31, 2005 1:08 pm Post subject: System extremely busy every 3 hours |
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I've searched around in the forums, and found topics about slocate running on a daily basis to update its database. I've already checked my crontab and the cron folders, but nothing there.
My problem is, the lockups occur regularly every 3 hours. Then, the CPU (Athlon64 3000+) is completely busy (I can't even type in any terminal or move the mouse pointer in Xorg!) and there is hard disk activity all the time. Sometimes, it finishes after about 10 minutes, but sometimes it locks up for two hours, just to begin again an hour later.
Because I'm not able to type in any terminal, I can't determine which process causes this activity.
Does someone has any clue what process can cause such a heavy load on the system?  |
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Cintra
Advocate
Joined: 03 Apr 2004
Posts: 2111
Location: Norway
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| Posted: Mon Jan 31, 2005 1:28 pm Post subject: |
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Are you connected to the net at that time?
If so, are you running a firewall app like guarddog?
What's in messages?
It might be an idea to install sys-apps/smartmontools
"control and monitor storage systems using the Self-Monitoring, Analysis and Reporting Technology System (S.M.A.R.T.)" could be you have something really weird with a disk..
mvh
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CodAv
Apprentice
Joined: 09 May 2004
Posts: 170
Location: Essen, Germany
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| Posted: Mon Jan 31, 2005 1:35 pm Post subject: |
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Yes, via another Linux router. SSH is normally disabled on my machine, so I do not suspect that anyone has cracked my machine, since my passwords are not easy to guess (the important ones also contain special characters) and my world is up to date. This also happens if there is no active network connection (neither LAN or WLAN).
/var/log/messages contains the following entries made during the last busy period (13:05 to about 14:10 german time):
| Code: | Jan 31 13:00:02 codav-mobile /usr/sbin/cron[22761]: (root) CMD (rm -f /var/spool/cron/lastrun/cron.hourly)
Jan 31 13:00:02 codav-mobile /usr/sbin/cron[22762]: (root) CMD (test -x /usr/sbin/run-crons && /usr/sbin/run-crons )
Jan 31 13:12:17 codav-mobile /usr/sbin/cron[22908]: (root) CMD (test -x /usr/sbin/run-crons && /usr/sbin/run-crons )
Jan 31 13:24:21 codav-mobile sshd[22906]: Did not receive identification string from ::ffff:172.16.3.12
Jan 31 13:25:55 codav-mobile /usr/sbin/cron[22915]: (root) CMD (test -x /usr/sbin/run-crons && /usr/sbin/run-crons )
Jan 31 13:33:01 codav-mobile /usr/sbin/cron[22926]: (root) CMD (test -x /usr/sbin/run-crons && /usr/sbin/run-crons )
Jan 31 13:43:50 codav-mobile /usr/sbin/cron[22944]: (root) CMD (test -x /usr/sbin/run-crons && /usr/sbin/run-crons )
Jan 31 13:51:47 codav-mobile /usr/sbin/cron[22956]: (root) CMD (test -x /usr/sbin/run-crons && /usr/sbin/run-crons )
Jan 31 14:03:06 codav-mobile /usr/sbin/cron[22971]: (root) CMD (rm -f /var/spool/cron/lastrun/cron.hourly)
Jan 31 14:03:06 codav-mobile /usr/sbin/cron[22970]: (root) CMD (test -x /usr/sbin/run-crons && /usr/sbin/run-crons )
Jan 31 14:05:07 codav-mobile oom-killer: gfp_mask=0x1d2
Jan 31 14:05:07 codav-mobile DMA per-cpu:
Jan 31 14:05:07 codav-mobile cpu 0 hot: low 2, high 6, batch 1
Jan 31 14:05:07 codav-mobile cpu 0 cold: low 0, high 2, batch 1
Jan 31 14:05:07 codav-mobile Normal per-cpu:
Jan 31 14:05:07 codav-mobile cpu 0 hot: low 32, high 96, batch 16
Jan 31 14:05:07 codav-mobile cpu 0 cold: low 0, high 32, batch 16
Jan 31 14:05:07 codav-mobile HighMem per-cpu: empty
Jan 31 14:05:07 codav-mobile
Jan 31 14:05:07 codav-mobile Free pages: 3160kB (0kB HighMem)
Jan 31 14:05:07 codav-mobile Active:118825 inactive:399 dirty:0 writeback:0 unstable:0 free:790 slab:4450 mapped:118740 pagetables:532
Jan 31 14:05:07 codav-mobile DMA free:88kB min:88kB low:108kB high:132kB active:10168kB inactive:0kB present:16384kB pages_scanned:60535 al
l_unreclaimable? yes
Jan 31 14:05:07 codav-mobile protections[]: 0 0 0
Jan 31 14:05:07 codav-mobile Normal free:3072kB min:2800kB low:3500kB high:4200kB active:465132kB inactive:1596kB present:506816kB pages_sc
anned:0 all_unreclaimable? no
Jan 31 14:05:07 codav-mobile protections[]: 0 0 0
Jan 31 14:05:07 codav-mobile HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unrecl
aimable? no
Jan 31 14:05:07 codav-mobile protections[]: 0 0 0
Jan 31 14:05:07 codav-mobile DMA: 0*4kB 1*8kB 1*16kB 0*32kB 1*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 88kB
Jan 31 14:05:07 codav-mobile Normal: 64*4kB 8*8kB 0*16kB 0*32kB 1*64kB 1*128kB 0*256kB 1*512kB 0*1024kB 1*2048kB 0*4096kB = 3072kB
Jan 31 14:05:07 codav-mobile HighMem: empty
Jan 31 14:05:07 codav-mobile Swap cache: add 0, delete 0, find 0/0, race 0+0
Jan 31 14:05:07 codav-mobile Out of Memory: Killed process 13617 (kopete).
Jan 31 14:05:07 codav-mobile Out of Memory: Killed process 13629 (kopete).
Jan 31 14:05:07 codav-mobile Out of Memory: Killed process 13634 (kopete).
Jan 31 14:05:07 codav-mobile Out of Memory: Killed process 13635 (kopete).
Jan 31 14:05:07 codav-mobile Out of Memory: Killed process 13636 (kopete).
Jan 31 14:07:21 codav-mobile sshd[22967]: fatal: Timeout before authentication for ::ffff:172.16.3.12
Jan 31 14:09:34 codav-mobile su[23454]: PAM pam_putenv: delete non-existent entry; REMOTEHOST
Jan 31 14:09:34 codav-mobile PAM-env[23454]: Unknown PAM_ITEM: <DISPLAY>
Jan 31 14:09:34 codav-mobile su[23454]: PAM pam_putenv: delete non-existent entry; DISPLAY
Jan 31 14:09:34 codav-mobile PAM-env[23454]: Unknown PAM_ITEM: <XAUTHORITY>
Jan 31 14:09:34 codav-mobile su[23454]: PAM pam_putenv: delete non-existent entry; XAUTHORITY
Jan 31 14:09:34 codav-mobile su(pam_unix)[23454]: session opened for user root by (uid=1000)
Jan 31 14:09:34 codav-mobile su[23454]: PAM pam_putenv: delete non-existent entry; REMOTEHOST
Jan 31 14:09:34 codav-mobile PAM-env[23454]: Unknown PAM_ITEM: <DISPLAY>
Jan 31 14:09:34 codav-mobile su[23454]: PAM pam_putenv: delete non-existent entry; DISPLAY
Jan 31 14:09:34 codav-mobile PAM-env[23454]: Unknown PAM_ITEM: <XAUTHORITY>
Jan 31 14:09:34 codav-mobile su[23454]: PAM pam_putenv: delete non-existent entry; XAUTHORITY
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I tried to access the machine via SSH from my PC, but just received timeouts as seen in the log.
Last edited by CodAv on Mon Jan 31, 2005 1:43 pm; edited 2 times in total |
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vonhelmet
l33t
Joined: 06 Apr 2004
Posts: 770
Location: Somewhere in a school
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| Posted: Mon Jan 31, 2005 1:41 pm Post subject: |
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Check /var/log/messages or the equivalent log depending on your logger, to see what it says around the time of the spikes in activity.
EDIT: Thanks...
Check your cron.hourly directory. Is slocate set to run every hour or every few hours?
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CodAv
Apprentice
Joined: 09 May 2004
Posts: 170
Location: Essen, Germany
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| Posted: Mon Jan 31, 2005 1:43 pm Post subject: |
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Edited my post the same time as your post was made ^^ see above  |
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Cintra
Advocate
Joined: 03 Apr 2004
Posts: 2111
Location: Norway
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| Posted: Mon Jan 31, 2005 5:04 pm Post subject: |
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| CodAv wrote: | | Edited my post the same time as your post was made ^^ see above |
are you running kde? if so K > system > Kcron > root and see if you have more tasks there than you thought!
mvh
_________________
"I am not bound to please thee with my answers" W.S. |
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CodAv
Apprentice
Joined: 09 May 2004
Posts: 170
Location: Essen, Germany
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| Posted: Fri Feb 04, 2005 4:07 pm Post subject: |
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Nope, there are no cronjobs for any user except the cron.daily, cron. weekly etc, but these folders don't contain any scripts to run :-/
I'm suspecting pdflush to be the source of evil, since many others have problems with it, too. Will investigate this further... |
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