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SubjectRe: EC interrupt mode by default breaks power button and lid button
* Yu, Luming <luming.yu@intel.com> [2006-02-07 13:33]:
> >> Please don't revert that patch, and test kernel parameter ec_intr=0
> >
> >Yes, boot option ec_initr=0 helps power/lid buttons. (Tested with
> >yesterdays newest kernel from linus' tree.)
>
> Any difference with ec_initr=1 with this kernel ?

No. Neither powerbutton nor lidbutton works with ec_initr=1.

> If pressing power button, can you see acpi interrupt increases?

Where do I find this? Do you mean interrupt 9 "IO-APIC-edge acpi" in
/proc/interrupts?

With ec_initr=1 I don't see that interrupt 9 increases.

--- tmp/ec1/interrupts 2006-02-07 14:31:54.000000000 +0100
+++ tmp/ec1/interrupts-after-powerbutton 2006-02-07 14:33:07.000000000 +0100
@@ -1,10 +1,10 @@
CPU0
- 0: 42181 IO-APIC-edge timer
- 1: 446 IO-APIC-edge i8042
+ 0: 60423 IO-APIC-edge timer
+ 1: 676 IO-APIC-edge i8042
2: 0 XT-PIC cascade
9: 1 IO-APIC-edge acpi
- 12: 2177 IO-APIC-edge i8042
- 14: 6494 IO-APIC-edge ide0
+ 12: 3221 IO-APIC-edge i8042
+ 14: 6547 IO-APIC-edge ide0
16: 0 IO-APIC-level uhci_hcd:usb5, i915@pci:0000:00:02.0
17: 1 IO-APIC-level Intel ICH6, ipw2200
18: 0 IO-APIC-level uhci_hcd:usb4
@@ -12,6 +12,6 @@
20: 0 IO-APIC-level yenta, Intel ICH6 Modem
23: 0 IO-APIC-level ehci_hcd:usb1, uhci_hcd:usb2
NMI: 0
-LOC: 42140
+LOC: 60383
ERR: 0
MIS: 0

With ec_initr=1 /proc/acpi/button/lid/LID0/state seems to work sane:

gps@medusa:~$ cat /proc/acpi/button/lid/LID0/state # lid opened
state: open
gps@medusa:~$ sleep 5 && cat /proc/acpi/button/lid/LID0/state # closing lid quicker than 5 seconds
state: closed

With ec_initr=0 (and acpid *stopped*) I see interrupt 9 increases.

--- tmp/ec0/acpid-off/interrupts 2006-02-07 14:40:55.000000000 +0100
+++ tmp/ec0/acpid-off/interrupts-after-powerbutton 2006-02-07 14:42:13.000000000 +0100
@@ -1,10 +1,10 @@
CPU0
- 0: 27910 IO-APIC-edge timer
- 1: 375 IO-APIC-edge i8042
+ 0: 47228 IO-APIC-edge timer
+ 1: 599 IO-APIC-edge i8042
2: 0 XT-PIC cascade
- 9: 27 IO-APIC-edge acpi
- 12: 755 IO-APIC-edge i8042
- 14: 6259 IO-APIC-edge ide0
+ 9: 28 IO-APIC-edge acpi
+ 12: 2105 IO-APIC-edge i8042
+ 14: 6465 IO-APIC-edge ide0
16: 0 IO-APIC-level uhci_hcd:usb5, i915@pci:0000:00:02.0
17: 1 IO-APIC-level Intel ICH6, ipw2200
18: 0 IO-APIC-level uhci_hcd:usb4
@@ -12,6 +12,6 @@
20: 0 IO-APIC-level yenta, Intel ICH6 Modem
23: 0 IO-APIC-level ehci_hcd:usb1, uhci_hcd:usb2
NMI: 0
-LOC: 27872
+LOC: 47191
ERR: 0
MIS: 0
With ec_initr=0 and acpid *started* I see this change in /var/log/acpid

--- tmp/ec0/acpid-after-boot 2006-02-07 14:20:21.000000000 +0100
+++ tmp/ec0/acpid-after-powerbutton-and-lid-switch 2006-02-07 15:01:50.000000000 +0100
@@ -327,3 +327,20 @@
[Tue Feb 7 14:13:41 2006] exiting
[Tue Feb 7 14:18:44 2006] starting up
[Tue Feb 7 14:18:44 2006] 8 rules loaded
+[Tue Feb 7 14:20:25 2006] received event "button/power PWRF 00000080 00000001"
+[Tue Feb 7 14:20:25 2006] executing action "/etc/acpi/actions/my_powerbtn.sh"
+[Tue Feb 7 14:20:25 2006] BEGIN HANDLER MESSAGES
+[Tue Feb 7 14:20:37 2006] END HANDLER MESSAGES
+[Tue Feb 7 14:20:37 2006] action exited with status 0
+[Tue Feb 7 14:20:37 2006] completed event "button/power PWRF 00000080 00000001"
+[Tue Feb 7 14:23:20 2006] received event "button/lid LID0 00000080 00000001"
+[Tue Feb 7 14:23:20 2006] executing action "/etc/acpi/actions/lm_lid.sh button/lid LID0 00000080 00000001"
+[Tue Feb 7 14:23:20 2006] BEGIN HANDLER MESSAGES
+[Tue Feb 7 14:23:20 2006] END HANDLER MESSAGES
+[Tue Feb 7 14:23:20 2006] action exited with status 0
+[Tue Feb 7 14:23:20 2006] executing action "/etc/acpi/actions/my_lid.sh button/lid LID0 00000080 00000001"
+[Tue Feb 7 14:23:20 2006] BEGIN HANDLER MESSAGES
+[Tue Feb 7 14:24:27 2006] END HANDLER MESSAGES
+[Tue Feb 7 14:24:27 2006] action exited with status 0
+[Tue Feb 7 14:24:27 2006] completed event "button/lid LID0 00000080 00000001"
Hope this helps
-- Gerhard
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