VMachine-Host:: rtc: lost some interrupts at 512Hz.
For our VMachine-Hosts I used Debian Etch (as usual for linux systems). Linux kernel: 2.6.18-4-686
Quit fast I run into some problems with the rtc-interrupt. My syslog-file did contain nearly only these messages:
Jun 30 06:17:01 fakename kernel: rtc: lost some interrupts at 512Hz.
Jun 30 06:17:32 fakename last message repeated 1513 times
Also the hole screen was filled with the message “rtc: lost some interrupts at 512Hz”.
Well, actually I could ignore these messages because the VMachines run without problems. Except that the time ticked too slow (Daily ntp update, at midday the clock was about an hour behind the real time). But this could be fixed with hourly ntp updates. This was my temporary solution.
I found the final solution rather by the way (the first VMachine-Host was installed by my boss and he installed Sidux (after knoppix, kanotix, pclinux he prefers now sidux), there didn’t occour a problem like that). It seems that those two kernel images/modules are a little bit different (not only the version).
Solution: Get the newest sidux kernel (I use 2.6.20.1-slh-smp-2), the modules and headers.
Source:
www.sidux.com
www.vmware.com
You can also try putting host.useFastClock = “FALSE” in /etc/vmware/config
That makes the anoiying message go away… Im nor comfortable with VMware server running over Debian etch r2 anymore, after making the error go away by disabling the rtc, im having problems with my hosted vms networking, when doing apt-get install or even update…