I also noticed the following in /var/log/messages:
Apr 11 09:21:19 localhost kernel: warning: many lost ticks.
Apr 11 09:21:19 localhost kernel: Your time source seems to be instable
or some driver is hogging interupts
I'll bet this has something to do w/ the problem. (:-) Does anybody know
how to figure out what this is about?
(I have a vague memory of having seen the same problem w/ the SMP kernel
on a P4 w/ hyperthreading. On this system it was so bad that the whole
system would lock up. My AMD keeps chugging along, more or less.)
Regards,
Eric
Eric Mader wrote:
Hello,
I'm running kernel 2.6.11-1.1369_FC4smp on an AMD64 x2 system. A couple
of days ago I noticed that NTPD wasn't keep time very well. I did some
investigating and found out that the jitter from the time servers kept
going up and up - after an hour the jitter will be several seconds.
As an experiment, I tried running the non-smp kernel, and NTPD was able
to keep rock-solid sync. After more than an hour, the jitter was only a
few milliseconds.
I'm guessing that this points to some problem w/ the SMP kernel. Can
anybody confirm this, or suggest what else the problem might be?
My system:
ASUS A8V Delux
AMD Athlon 64 X2 4200+
1 GM memory (512 MB x 2)
WD1200JJ (w/ Windows XP x64)
WD400BB (w/ FC4)
NEC DVD RW 3520A
TDK CDRW 5200B
NVidia GeForce 6600 (ASUS brand)
Samsung SyncMaster 204T (connected through a DVI KVM)
USB Keyboard and mouse (connected through KVM)
Regards,
Eric Mader
