Date: Wed, 14 Apr 2010 20:10:09 +0300 From: Andriy Gapon <avg@icyb.net.ua> To: Akephalos <akephalos.akephalos@gmail.com> Cc: Attilio Rao <attilio@freebsd.org>, freebsd-stable@freebsd.org Subject: Re: CPU problems after 8.0-STABLE update Message-ID: <4BC5F6F1.8040805@icyb.net.ua> In-Reply-To: <20100414194102.66a35582.akephalos.akephalos@gmail.com> References: <q2v1468a0871004032332kd654e4c6s8fbb72ed16f73f0@mail.gmail.com> <v2m3bbf2fe11004040928y3751bca5qfb2870c1fc03ad71@mail.gmail.com> <h2i1468a0871004060450t59c81e76t947f8dbbe268b058@mail.gmail.com> <y2q3bbf2fe11004060551i94582c86j211bf2baf96e6f14@mail.gmail.com> <20100408042958.21d99cea.akephalos.akephalos@gmail.com> <4BBD81B6.4000109@icyb.net.ua> <20100408150436.f08ccbea.akephalos.akephalos@gmail.com> <4BBDDB15.4080406@icyb.net.ua> <20100408154422.071e0904.akephalos.akephalos@gmail.com> <4BBDE420.2060003@icyb.net.ua> <20100408162149.1a5bb8c7.akephalos.akephalos@gmail.com> <4BBDF02C.4020909@icyb.net.ua> <20100410072103.7a216222.akephalos.akephalos@gmail.com> <4BC4DCF0.9010209@icyb.net.ua> <20100414162800.76c6aeac.akephalos.akephalos@gmail.com> <4BC5C599.2000802@icyb.net.ua> <20100414194102.66a35582.akephalos.akephalos@gmail.com>
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on 14/04/2010 19:41 Akephalos said the following: > > You won't believe this, Andriy! It didn't work (top, top -P) after I rebooted > my computer with that acpi option and machdep.lapic_allclocks explicitely set > to zero. _However_, by reasons unknown, my computer time is offseting randomly > and it happened that I saw my time showed as midnight, although it's seven in > the evening. /etc/rc.d/ntpdate onerestart - and voila! Top shows correctly. > Disabling all those options in loader.conf, the behavior is the same, top - and > therefore powerd work after starting ntpdate. Indeed, that almost sounds too good to be true :-) Couple of questions: 1. Could you please check in dmesg if hpet attaches normally now or still has an error? 2. Do you have to run ntpdate after each power-off or is everything OK after the first run? 3. Have you ever set time on this machine before (in BIOS, other OS, etc)? 4. Can you please double-check that lapic_allclocks is zero in kernel? You can run 'kgdb /boot/kernel/kernel /dev/mem' and then 'print lapic_allclocks' Thanks! -- Andriy Gapon
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