Date: Sat, 9 Jun 2007 12:57:13 -0700 (PDT) From: Matthew Dillon <dillon@apollo.backplane.com> To: Dmitry Morozovsky <marck@rinet.ru> Cc: freebsd-stable@freebsd.org, Ivan Voras <ivoras@fer.hr> Subject: Re: calcru: runtime went backwards, RELENG_6, SMP Message-ID: <200706091957.l59JvDWR026822@apollo.backplane.com> References: <20070606153542.Y76617@woozle.rinet.ru> <f46tmc$rgb$2@sea.gmane.org> <20070606231940.T91939@woozle.rinet.ru> <200706062127.l56LRYTe090137@apollo.backplane.com> <20070608111809.U97287@woozle.rinet.ru> <200706090809.l5989Mkj020033@apollo.backplane.com> <20070609163329.P4850@woozle.rinet.ru>
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:Well, I can of course shut the kernel up, but kernel time stability is still my
:concern. I run ntpd there and while sometimes it seems stable (well, sorta:
:drift are within several seconds...) there are cases of half-a-minute time
:steps.
:
:Sincerely,
:D.Marck [DM5020, MCK-RIPE, DM3-RIPN]
I think the only hope you have of getting the issue addressed is to
run FreeBSD current. If you can reproduce the time slips under current
the developers should be able to track the problem down and fix it. The
code is so different between those two releases that they are going to
have a hard time working the problem in FreeBSD-6.
If you don't want to do that, try forcing the timer to use the 8254
and see if that helps. You may also have to reduce the system tick
to ~100-200 hz.
-Matt
Matthew Dillon
<dillon@backplane.com>
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