Date: Wed, 10 Dec 2003 12:18:24 +0200 From: Andy Fawcett <andy@athame.co.uk> To: Nate Lawson <nate@root.org> Cc: current@freebsd.org Subject: Re: PATCH - acpica-20031203 Message-ID: <200312101218.25117.andy@athame.co.uk> In-Reply-To: <20031209093848.W42685@root.org> References: <20031208094524.A38857@root.org> <200312091329.15490.andy@athame.co.uk> <20031209093848.W42685@root.org>
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On Tuesday 09 December 2003 7:44 pm, Nate Lawson wrote: > On Tue, 9 Dec 2003, Andy Fawcett wrote: > > On Monday 08 December 2003 19:47, Nate Lawson wrote: > > > I've built and run the latest ACPI-CA dist and it looks pretty > > > good. It has a lot of fixes from FreeBSD as well as Linux. > > > Please give it a try and let me know if it gives you any new > > > problems. > > > > > > http://www.root.org/~nate/freebsd/acpica-20031203.diff.gz > > The about patch has been committed, along with some other related > changes. Please cvsup to today and test again. I will do that later, please see below first. > > I've just installed 5.2-CURRENT (post -BETA branching) to my Asus > > P2B-DS based system, and I am seeing slow performance. Looking at > > the output of "ps -axu" I can see massive amounts of Interrupt > > activity (removed VSZ and RSS fields to save space): > > > > USER PID %CPU %MEM TT STAT STARTED TIME COMMAND > > root 30 95.3 0.0 ?? RL 1:08PM 4:11.77 (irq20: acpi0) > > root 12 53.9 0.0 ?? RL 1:08PM 5:08.86 (idle: cpu0) > > root 11 50.0 0.0 ?? RL 1:08PM 4:28.89 (idle: cpu1) > > > > # uname -a > > FreeBSD nobby.int.athame.co.uk 5.2-CURRENT FreeBSD 5.2-CURRENT #2: > > Mon Dec 8 21:32:07 EET 2003 > > root@nobby.int.athame.co.uk:/usr/obj/usr/ src/sys/NOBBY i386 > > > > This happens both before and after installing the 20031203 > > patchset. > > Since you have this problem after applying the patch, cvsuping > probably won't help. Indeed. > > The box was previously running 5.1R with no apparent problems. > > > > From dmesg: > > acpi0: Overriding SCI Interrupt from IRQ 9 to IRQ 20 > > > > I've read through as much of the -current archives as possible, but > > I can't see anything that helps me diagnose the problem. > > The issue is likely that you have a broken BIOS. It's quite possible, the BIOS on this system (while being the latest available from Asus) is not very recent. > Before 5.2, we > didn't use the APIC on non-SMP boxes. Now we use it if it's > available. I didn't quite understand this, since my box _is_ SMP... > Try this in loader.conf to disable APIC irq routing: > > hint.apic.0.disabled=1 That has removed the spurious interrupt problem from my system. I'll do some more experimenting later, and provide some feedback if I find anything out. Thanks, Andy -- Andy Fawcett | andy@athame.co.uk | tap@kde.org "In an open world without walls and fences, | tap@lspace.org we wouldn't need Windows and Gates." -- anon | tap@fruitsalad.org
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