Date: Tue, 30 May 2006 21:02:53 -0300 From: "Ricardo Nabinger Sanchez" <rnsanchez@gmail.com> To: freebsd-current@freebsd.org Subject: weird swi4:clock misbehavior after fire saver goes in Message-ID: <52b3de6f0605301702x6627846ap89c8b3ac3cc29cb4@mail.gmail.com>
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Hello, After upgrading a somewhat low-end machine to -CURRENT, I noticed a misbehavior of a system thread, "swi4: clock". What happens: after some time, its cpu usage went from ~0.1% to ~62%, without reducing afterwards (in case it was just a peak usage) until rebooting. In a first moment, I thought this was due to something related to "make buildworld" or "portupgrade -a" (which could last for 4 days if there are *many* fat ports to update, like firefox), but this morning the system thread gone crazy without anything happening in the system -- except for the fire saver. When in 5-STABLE or 6-STABLE it went "only" up to ~20% of cpu usage. The machine is up for 9 hours, I did lots of compilations and plenty of network traffic, and the 'swi4: clock' thread is behaving nicely (0.00 to 0.2% of cpu usage). I configured the machine to not enable the screensaver. I'm not completely sure, but I don't remember this behavior happening if there was a X session running with the terminal "pointing" to it, instead of a tty. Details about the machine: rnsanchez@camelo:~% uname -a FreeBSD camelo.lan.box 7.0-CURRENT FreeBSD 7.0-CURRENT #1: Fri May 26 17:29:30 BRT 2006 root@camelo.lan.box:/home/cvsup/obj/home/cvsup/src/sys/CAMELO i386 kernconf <http://rnsanchez.wait4.org/FreeBSD/CAMELO.txt>; pciconf -lv <http://rnsanchez.wait4.org/FreeBSD/pciconf.txt>; dmesg <http://rnsanchez.wait4.org/FreeBSD/dmesg.txt>; sysctl -a <http://rnsanchez.wait4.org/FreeBSD/sysctl.txt>; I'd be glad to provide additional information, just tell me what you need :) Regards, and thanks in advance. -- Ricardo Nabinger Sanchez GNU/Linux #140696 [http://counter.li.org] Slackware Linux + FreeBSD
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