SMP weirdness in -CURRENT

[John Baldwin]

On Thursday 22 April 2004 04:51 pm, Eirik Oeverby wrote:
> Hi,
>
> I don't *have* anything on IRQ 20.
> Here's the output of vmstat -i after >2 days uptime:
>
> [root at ranger] ~# vmstat -i
> interrupt                          total       rate
> irq0: clk                       22888351         99
> irq1: atkbd0                       20530          0
> irq8: rtc                       29298041        128
> irq9: acpi0                         3902          0
> irq11: cbb0 cbb1+++               203530          0
> irq12: psm0                       117066          0
> irq13: npx0                            1          0
> irq14: ata0                       313747          1
> irq15: ata1                           46          0
> Total                           52845214        230
> [root at ranger] ~# uptime
> 10:50PM  up 2 days, 15:36, 5 users, load averages: 0.14, 0.14, 0.11
>
> Note that this is *without* the suggested loader.conf option.

Ok, this verifies that you aren't suffering from an interrupt storm at least.

> /Eirik
>
> John Baldwin wrote:
> > On Wednesday 21 April 2004 04:10 am, Eirik Oeverby wrote:
> >>Hi,
> >>
> >>Yes I'm using ACPI. I assume that without ACPI things wouldn't work
> >>overly well at all..?
> >>When was this fix committed? I have a fairly recent kernel, too, see
> >> below.
> >
> > do a 'vmstat -i' to see if you are getting an interrupt storm.  If you
> > have a very high count of interrupts on IRQ 20, add the
> > 'hw.acpi.force_sci_lo' option to loader.conf as the previous poster said.

-- 
John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org