Date: Tue, 22 Jun 2004 13:09:21 +0200 From: Jeremie Le Hen <jeremie.le-hen@epita.fr> To: freebsd-current@freebsd.org Cc: freebsd-mobile@freebsd.org Subject: Weird rtc interrupt rate Message-ID: <20040622110921.GA9281@rocco.epita.fr>
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Hi,
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 ?
(I'm not a kernel nor hardware guru, so I may have forget to give
revelant informations. Please ask me if you want more informations.)
Regards,
--
Jeremie LE HEN aka TtZ/TataZ jeremie.le-hen@epita.fr
ttz@epita.fr
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