Re: [mailinglists] Strange Load Average patterns
Hi Rudolph,
that might very well be a problem with the kernel since you
still run a 2.2 kernel. any chance the system has IDE-Disks ?
i am using a syslog server and it was running a 2.2.20 kernel.
with this kernel the load was pretty high. after i upgraded to
2.4 kernel series the problem immediately disappeared.
the 2.2 kernel has a lot of CPU problems fixed in the 2.4 tree.
you should upgrade as well...
regards,
philipp
----- Original Message -----
From: "Rudolph van Graan" <rvg@ifoni.com>
To: <debian-security@lists.debian.org>
Sent: Thursday, May 08, 2003 7:33 PM
Subject: [mailinglists] Strange Load Average patterns
Hi again,
I'm struggling trying to get to the root of a possible problem with
woody or the kernel. One of my up to date production machines show a
very strange load average problem. Basically, the machine gradually
builds up to a high LA and then abruptly at 6:30 in the morning this
stops. It then builds up again, peaking just before 6:30 the next
morning. I've done all sorts of traces - most of them using top that
didn't show anything out of the ordinary. I've suspected that the
machine might be hacked, but scanning through all of the processes in
/proc, again nothing out of the ordinary. The only thing that I know is
that sysklogd restarts about that time in the morning. I've checked and
checked, and it definitely is not one of the user mode processes causing
this.
uname -a:
Linux newton 2.2.20 #1 Sat Apr 20 11:45:28 EST 2002 i686 unknown
$> dpkg --list | grep sysklog
ii sysklogd 1.4.1-10 System Logging Daemon
Any ideas?
Regards,
Rudolph van Graan
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