Date: Thu, 01 Mar 2012 10:57:47 +0200 From: Andriy Gapon <avg@FreeBSD.org> To: Kevin Oberman <kob6558@gmail.com> Cc: FreeBSD current <freebsd-current@FreeBSD.org>, John Baldwin <jhb@FreeBSD.org> Subject: Re: revisiting tunables under Safe Mode menu option Message-ID: <4F4F3A0B.6010605@FreeBSD.org> In-Reply-To: <CAN6yY1u4AmF36Xf_ZgyC3Yxk43F9Mae_p1wbi2KTOPkrpyw5yA@mail.gmail.com> References: <4F26CC5A.2070501@FreeBSD.org> <4F4B5ED3.5090508@FreeBSD.org> <65B1891F-9079-4948-BF37-8A50B4E85071@samsco.org> <4F4C0600.2000903@FreeBSD.org> <3BA1B476-ED05-4E8E-8DFA-0B06EFB48867@samsco.org> <CAN6yY1s%2BOfTZjjWMmPm5WzVfB7O_CaJc7th_qLZ8Ej1FhBA7=w@mail.gmail.com> <4F4DF4BD.4040208@FreeBSD.org> <CAN6yY1u4AmF36Xf_ZgyC3Yxk43F9Mae_p1wbi2KTOPkrpyw5yA@mail.gmail.com>
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on 01/03/2012 03:07 Kevin Oberman said the following: > I disabled APIC with a tunable (hint.apic.0.disabled=1). The T43 has > no BIOS setting to turn it off. > > I have some time and still have the computer and it is up and running > 9-Stable. In theory, I am retired, but still work part-time job at > Lawrence Berkeley and have a contract with another university that > will end sin a few weeks. I should be able to spend some time looking > at it, but I may be tied up with those at times. > > I am NOT a programmer any more. My last kernel hacking was done in > assembly on a VAX (or, maybe and Alpha) running VMS about 25 years > ago. If you want me to help, I'll try, but I'll probably need detailed > instructions and, since the system is owned by the U.S. government, I > can't allow others to access it. I think that obtaining verbose boot logs for both cases would be a nice start. If you can't get the log as a text (e.g. via serial console) for the APIC case, then a series of digital camera screenshots would be fine too. P.S. Here seems to be a dmesg of FreeBSD 7 successfully booting on T43 with APIC enabled: http://www.4ucode.com/Study/Topic/1091620 -- Andriy Gapon
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