lkml.org 
[lkml]   [2004]   [Apr]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: Two problems after upgrade tto 2.4.26
From
Date
On Fri, 2004-04-23 at 04:22, Martin Knoblauch wrote:

Re: keyboard/mouse instability with ACPI enabled starting in 2.4.26

> >Does /proc/interrupts show any acpi events?
> >Did it in 2.4.23?
> >
> Len,
>
> some ACPI Interrupts:
>
> cat /proc/interrupts
> CPU0
> 0: 31464 XT-PIC timer
> 1: 570 XT-PIC keyboard
> 2: 0 XT-PIC cascade
> 3: 5 XT-PIC HiSax
> 8: 2 XT-PIC rtc
> 9: 1197 XT-PIC acpi
> 10: 1695 XT-PIC eth0, usb-uhci, Texas Instruments
> PCI1420, Texas Instruments PCI1420 (#2)
> 12: 5460 XT-PIC PS/2 Mouse
> 14: 18052 XT-PIC ide0
> 15: 11 XT-PIC ide1

kill acpid and
# cat /proc/acpi/event
to see what the events are.
We we are working on a GPE issue related to spurious
ACPI interrupts right now, but I'd actually expect
2.4.26 to get _fewer_ acpi interrupts than 2.4.25, not more.

Re: fan running more
it would be interesting if you notice a temperature difference
between the releases in /proc/acpi/thermal...

eg.
cat /proc/acpi/thermal_zone/THRM/temperature
temperature: 37 C


FAN isn't always controlled by ACPI. If it is, you'll see it
in the dmesg like this:
ACPI: Power Resource [PFAN] (off)
In either case, it may be that we're running hotter (say idle
isn't working right), or we're running the fan more often by mistake.

For idle, you can compare the /proc/acpi/processor/CPU0/power
file in the two releases to see if one release is getting into
a deeper power-saving state than the other.

Eg, this centrino box isn't getting into C3 because USB is active.

cat /proc/acpi/processor/CPU0/power
active state: C2
default state: C1
bus master activity: ffffffff
states:
C1: promotion[C2] demotion[--] latency[000]
usage[00000010]
*C2: promotion[C3] demotion[C1] latency[001]
usage[00370077]
C3: promotion[--] demotion[C2] latency[085]
usage[00000000]


cheers,
-Len


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:02    [W:1.077 / U:0.004 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site