Date: Thu, 8 Apr 2004 17:15:50 -0700 (PDT) From: Nate Lawson <nate@root.org> To: "David E. Cross" <crossd@cs.rpi.edu> Cc: freebsd-acpi@freebsd.org Subject: Re: ACPI,SMP(?), and 5.2.1-RELEASE Message-ID: <20040408171316.U44332@root.org> In-Reply-To: <20040408141941.W45013@monica.cs.rpi.edu> References: <20040408141941.W45013@monica.cs.rpi.edu>
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On Thu, 8 Apr 2004, David E. Cross wrote:
> I recently upgraded my odl ASUS P2B-DS runnig BIOS version 1012 to
> 5.2.1-RELEASE (from 4.9.1) and noticed that the system is spending 50% of
> its time in interrupt while idle running any kernel (including GENERIC).
> When the system is booted without ACPI everything runs correctly and no
> interrupt load is observed.
Send the output of vmstat -i so I can see the interrupt load.
Try booting with:
hint.apic.0.disabled="1"
This is likely an APIC issue if this fixes it.
> Additionally on shutting down the kernel messages after disabling ACPI are
> completely mangled. Like 90% of the time on a "halt" the "System is
> halted\nSystem is safe to power down or press any key to reboot" is
> completely missing or mangled to the point of non recognition. When it is
> visible I sometimes see a message like "Stray irq 2", and recently I got
> "stray irq 20\n rq 20" (just to give an example of how things are
> mangled after ACPI shutdown). the "2" bit in the IRQ is consistent
> whenever I am able to observe it, however I don't have anything in dmesg
> on irq 2, 12, 20, 21, 22, or 23 (where the IRQs max out according to the
> IOAPIC line) and I cannot think of anything else that has "2" in the irq
> number. So why am I not getting stray IRQ errors earlier? Is there any
> way to tell on a running system which IRQ line is getting spammed and
> "why"?
>
> Any help on this would be greatly appreciated as I would like to run ACPI
> on this system so that I can do power offs for things like UPS-Battery
> failure, etc.
This also indicates an APIC problem. jhb@ has a patch that hopefully will
be committed to allow disabling irq src overrides. Just for kicks, also
reply with the output of "acpidump -t" on your system.
-Nate
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