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Openmoko Bug #2270: Spurious ar6000_wow interrupts wake up the GTA02

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Openmoko Bug #2270: Spurious ar6000_wow interrupts wake up the GTA02

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#2270: Spurious ar6000_wow interrupts wake up the GTA02
-----------------------------+----------------------------------------------
Reporter: budfive | Owner: openmoko-kernel
Type: defect | Status: new
Priority: normal | Milestone:
Component: System Software | Version: unspecified
Severity: normal | Keywords:
Haspatch: 0 | Blockedby:
Estimated: | Patchreview:
Blocking: | Reproducible:
-----------------------------+----------------------------------------------
For the last month or so, my GTA02 often receives a wake-on-wireless
interrupt from the ar6000 even though the ar6000 is supposed to be off.
This wakes up the phone unnecessarily. The interrupts appear in dmesg as
"ar6000_wow interrupt", and based on those messages it seems that they
occur in spurts of about 20-30 interrupts with an average of 0.07 seconds
between each one.

I'm running the latest kernel right now
(d9a7be9aab65cd86981d60806041ac11fe514277), but it's been hapenning for a
while now. I can easily disable this behavior by disabling the request_irq
call in mach-gta02.c, but I shouldn't have to do that.

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Ticket URL: <https://docs.openmoko.org/trac/ticket/2270>
docs.openmoko.org <http://docs.openmoko.org/trac/>
openmoko trac

Openmoko Public Trac

Re: Openmoko Bug #2270: Spurious ar6000_wow interrupts wake up the GTA02

Reply Threaded

Jan de Haan

Re: Openmoko Bug #2270: Spurious ar6000_wow interrupts wake up the GTA02

Reply Threaded

Openmoko Public Trac wrote:

#2270: Spurious ar6000_wow interrupts wake up the GTA02
-----------------------------+----------------------------------------------
Reporter: budfive | Owner: openmoko-kernel
Type: defect | Status: new
Priority: normal | Milestone:
Component: System Software | Version: unspecified
Severity: normal | Keywords:
Haspatch: 0 | Blockedby:
Estimated: | Patchreview:
Blocking: | Reproducible:
-----------------------------+----------------------------------------------

Comment(by PaulFertser):

Is it still reproducible?

--
Ticket URL: <https://docs.openmoko.org/trac/ticket/2270#comment:1>
docs.openmoko.org <http://docs.openmoko.org/trac/>
openmoko trac

Hi,

yes, this is still reproducible on :

root@om-gta02 ~ $ uname -a
Linux om-gta02 2.6.29-rc3 #1 PREEMPT Tue Sep 1 23:03:59 CEST 2009 armv4tl unknown
root@om-gta02 ~ $ opkg search /boot/uImage-2.6.29-rc3
kernel-image-2.6.29-rc3 - 2.6.29-oe11+gitr119844+a3587e4ed77974adfb057af261aaeea4022018e8-r3.5 - /boot/uImage-2.6.29-rc3
root@om-gta02 ~ $

Sincerely,

Jan de Haan.

Paul Fertser

Re: Openmoko Bug #2270: Spurious ar6000_wow interrupts wake up the GTA02

Reply Threaded

Jan de Haan <[hidden email]> writes:
>> #2270: Spurious ar6000_wow interrupts wake up the GTA02
...
>> Is it still reproducible?
...

>> Ticket URL: <https://docs.openmoko.org/trac/ticket/2270#comment:1>
>
> yes, this is still reproducible on :
>
> root@om-gta02 ~ $ uname -a
> Linux om-gta02 2.6.29-rc3 #1 PREEMPT Tue Sep 1 23:03:59 CEST 2009 armv4tl
> unknown
> root@om-gta02 ~ $ opkg search /boot/uImage-2.6.29-rc3
> kernel-image-2.6.29-rc3 -
> 2.6.29-oe11+gitr119844+a3587e4ed77974adfb057af261aaeea4022018e8-r3.5 -
> /boot/uImage-2.6.29-rc3

Well, how often is "often"? Do you have dmesg logs for that? How do
you ensure the wifi is turned off?

But well, i think there's a possibility for this line to be floating
and triggering wakeup unnecessarily, but then it's strange it happens
only on few devices.

--
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