Date: Sat, 19 Jul 2008 17:03:08 -0400 From: "Alexandre \"Sunny\" Kovalenko" <gaijin.k@gmail.com> To: Giorgos Keramidas <keramida@freebsd.org> Cc: freebsd-current@freebsd.org Subject: Re: Broken APIC on my laptop or bug in FreeBSD? Message-ID: <1216501388.971.6.camel@RabbitsDen> In-Reply-To: <87prpcjrsk.fsf@kobe.laptop> References: <87prpcjrsk.fsf@kobe.laptop>
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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. -- Alexandre "Sunny" Kovalenko (Олександр Коваленко)
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