Help solve SOD [wifi variant] with DroidWall

---

Last Update: 8/6/2011

Basis:
Wifi always on causes SOD. There are numerous anecdotal reports that setting wifi to be off with screen off reduces/stops SOD.

Plan:
Utilize DroidWall to limit wifi use by applications and find out which applications appear to be safe by selecting specific applications and seeing if SOD occurs.

Why:
Even though turning off wifi with screen off saves battery, some people would like their nook to be pushing/updating with wifi when it is in sleep, getting emails, messages, etc.

What you can do:
1) Download/Install DroidWall
2) Using WHITELIST, check off one or two applications that you utilize the most.
3) Turn _ON_ firewall
4) Update the rules whenever you add or remove apps.
5) Change your wifi setting to always on (advanced options under wifi settings * need to hit menu button to see this option in cm7)

Apps so far tested without problems:
Email (stock)
Improved Email
Dolphin HD 6.0
Epocrates
Market
Amazon Appstore

Possible SOD related App
Downloads, Media Storage, DRM Protected Content Storage, Download Manager (this is one heading in DroidWall)

Apps so far tested that _might_ cause SOD:
*from posts, possibly Latitude.

Testing
K9 Mail

RoadMap
Rom Manager
Netflix
Executive Assistant+

Please post your findings.

I will update this post as we get more information.

Thanks.

DroidWall did not solve it for me... in fact it wouldn't even run on my Nook.

It works for me. At first, I forgot to turn on the firewall, then I forgot to update rules when I changed things.

So far, I have the following for access to wifi:
Market
Appstore(amazon)
Dolphin Browser HD
Epocrates RX
Email
Improved Email

I just turned on Appstore and Market for the first time tonight, so I'm not sure how well it will do.

I use my nook all the time at work, probably turn it on from lockscreen sleep about 15-20 times over 10 hours, so if I don't get a SOD by the next day, I will put market and amazon appstore on the safe side.

Interesting development:

I got my 1st SOD today.

Please note my active programs at this time.

Please note that it occured after I started the combined service noted in the OP:

Downloads, Media Storage, DRM protected Content storage, Download Manager in the Droidwall options.

I will remove this option (which makes it impossible to update market aps for that matter) and see if the SOD doesn't happen for the next 3 days. The restart it and see if I get SOD again.

If this is the cause, then I should be able to show that SOD occurs with it active.

nm

10chars.

Using white list and only allow full-time wifi access to "linux kernel" and "apps running as root"

Never have more than one or two other apps besides these access to wifi when in sleep mode. I never allow gapps full-time wifi access and that goes double for market.
Where did this idea come from? *ducks and runs*

I do believe drm checks are screwing with the nook.


Sent from my NookColor using XDA Premium App

Just wanted to pop in and say thanks for the very useful testing.

Okay, update - I left the downloads/media store etc on the last 3 days and haven't had another SOD. So I'm not sure what to think about that. I will move forward and enable K-9mail today and see how things go over the next couple days.

here's my take on it: it has to do with the router, or some configuration of it.
I have a wrt54gs v1.1 at home and a wrt54g v4 at work, both running tomato software, both with Cox internet.
I get CONSISTENT SODs at work, as a side note the router is a also crashing for an unknown reason. the two don't happen at the same time. I've been trying to grab logs for weeks can't explain it or the fact the nook NEVER SODs at home.
the nook can run at home for days perfect, once at work it can SOD 6 times a day or more.

there has to be more going on than an errant app.

Originally Posted by Phatdawg

Last Update: 8/6/2011

Basis:
Wifi always on causes SOD. There are numerous anecdotal reports that setting wifi to be off with screen off reduces/stops SOD.

Can you clarify what you mean by "reduces/stops" ? Does it reduce it or does it stop it ?

Also, I've been away for awhile - is this the only SOD cause that is not fixed in the current CM7 nightlies code ?

Thanks !!