Re: Weird rtc interrupt rate
Dan Nelson <[email protected]>
| Newsgroups | gmane.os.freebsd.current,gmane.os.freebsd.devel.mobile |
|---|---|
| Message-ID | <[email protected]> |
In the last episode (Jun 22), Jeremie Le Hen said: > I have a Dell Latitude CPx laptop running FreeBSD 5.2-CURRENT. I > have been using FreeBSD on this laptop for a long time, and the > problem I'm going to describe also happened while it was running > 4.6-STABLE. > > Sometimes, when wathing at my processes using top(1), all CPU states > are 0.00. Since ps(1) shows the same behaviour, this is not a bug in > top(1). But when this problem happens (this seems to be completly > random), vmstat(8) shows a weird interrupt rate for rtc : > > # z6po:root# vmstat -i | sed -n '1p; /rtc/p;' > # interrupt total rate > # irq8: rtc 7584528 115 > > or, two hours later, while the computer was 100% idle : > > # z6po:tataz$ vmstat -i | sed -n '1p; /rtc/p;' > # interrupt total rate > # irq8: rtc 7584528 101 > > AFAIK, rtc interrupts rate should be something like 127 or 128. What > could make the rate being so unstable ? It's not unstable; it just stopped completely and the average is slowly falling. I had this happen to one of my servers a few weeks ago as well. You can determine exactly when it stopped by counting 7584528/128 ~= 59254 seconds forward from the time your system booted. Mine died after about a week of uptime, and I didn't see anything interesting in the logs. A reboot fixed it. -- Dan Nelson [email protected] _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "[email protected]"