Date: Sun, 20 Jul 2008 01:31:34 +0300 From: Giorgos Keramidas <keramida@ceid.upatras.gr> To: "Alexandre \"Sunny\" Kovalenko" <gaijin.k@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: Broken APIC on my laptop or bug in FreeBSD? Message-ID: <87od4t5wvt.fsf@kobe.laptop> In-Reply-To: <1216501388.971.6.camel@RabbitsDen> (Alexandre Kovalenko's message of "Sat, 19 Jul 2008 17:03:08 -0400") References: <87prpcjrsk.fsf@kobe.laptop> <1216501388.971.6.camel@RabbitsDen>
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On Sat, 19 Jul 2008 17:03:08 -0400, "Alexandre \"Sunny\" Kovalenko" <gaijin.k@gmail.com> wrote: > On Thu, 2008-07-17 at 21:20 +0300, Giorgos Keramidas wrote: >> I recently had to replace my dead laptop, and I bought a replacement >> relatively fast, but something is broken with APIC on this one. >> >> FreeSBIE 2.0.1 (based on 6.2-RELEASE) seems to automatically disable the >> APIC, using hint.apic.0.disabled="1", so I didn't realize APIC failed to >> work properly until I dump(8) and restore(8)'d my backup to the new >> laptop. >> >> After booting with the APIC enabled, I found out that: >> >> * In single user mode, after `boot -sv', I can keep working without >> any major slow down. >> >> * When I exit single user mode, and a few of the rc.d startup scripts >> run, the laptop becomes progressively slower, and eventually crawls >> to an unusable state. I can almost complete logging in as `root' in >> ttyv0 but only if I keep furiously moving the mouse around. If I >> don't move the mouse at all, the typed characters may never actually >> appear on ttyv0. >> > Are you by any chance using cx_lowest="C3" (or "LOW") in your rc.conf? I > have seen these symptoms (including mouse inducement of the typed > characters) when cpu0 on my laptop went to C3. Nowadays I have C3 on > cpu1 and C2 on cpu0 and life is good. Then again, I am running RELENG_7 > (which AFAICR was 7-CURRENT at the time), so YMMV. --
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