Date: Wed, 14 Apr 2010 00:06:56 +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: <4BC4DCF0.9010209@icyb.net.ua> In-Reply-To: <20100410072103.7a216222.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>
next in thread | previous in thread | raw e-mail | index | archive | help
on 10/04/2010 07:21 Akephalos said the following: > On Thu, 08 Apr 2010 18:03:08 +0300 Andriy Gapon <avg@icyb.net.ua> wrote: > >> Really shooting in the dark here: are there any BIOS options about HPET and >> RTC on this system? Can you try playing with them? >> >> -- Andriy Gapon > > I'm sorry for this late reply. I can't see any option like that in bios, > unfortunately, there are few options that can be changed. In case it was > forgotten, on the firs install (8.0 release version) it was all fine, I think > diffing or tracing the changes from there might point to a solution? That's pretty obvious: RTC was not used for stat clock in that version; later version did try to use RTC and now Attilio has reverted the logic back to not use RTC unless explicitly requested. What is not obvious is why your RTC doesn't work as expected. I have no answer to that. One thing that makes me suspicious is that HPET also doesn't seem to work on your system. One very very wild guess is that IRQ8 might be actually driven by HPET, not RTC. And our programming of HPET or RTC or both messes things up. It would be interesting to see if disabling HPET (acpi_hpet) changes anything: debug.acpi.disabled="hpet" -- Andriy Gapon
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4BC4DCF0.9010209>