Interrupt storm on acpi0 occurred after madt.c change
John Baldwin
jhb at FreeBSD.org
Fri Jan 30 11:18:21 PST 2004
On Friday 30 January 2004 11:40 am, Sangwoo Shim wrote:
> Hi.
> I've experienced interrupt storm on acpi0 after your v1.10 madt.c commit.
> (which is located at src/sys/i386/acpica/madt.c);
> What really makes me frustrating is this storm wasn't here before 1.10
> change, which is exactly stand against your commit log message. :-(
> I've recompiled kernel with v1.9 of madt.c and the problem didn't occur.
>
> I'm using ASUS P2B-D with two p3-650 processors.
> BIOS version is 1014 beta 3 (which is the last published one);
>
> My kernel config is stripped GENERIC, which includes
> option CPU_FASTER_5X86_FPU
> option CPU_ENABLE_SSE
> device acpi # Mine hangs with acpi loaded as module.
>
> Attached file is my acpidump -t -d output.
> Thanks.
Can you provide a dmesg? IRQ20 on your box is a PCI interrupt and PCI
interrupts are level/lo, not level/hi. To top it off, ACPI states that the
SCI is supposed to always be level/lo. You must have a very broken BIOS to
get a storm now.
--
John Baldwin <jhb at FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve" = http://www.FreeBSD.org
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