AngryHatter
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Why is it unhealthy?
These are not NiCads.
What are my Android apps doing behind the scenes?
- Thread starter Natey2
- Start date
These are not NiCads.
- Thread Starter
- #32
No, I am an EE.Dude - obsessing much?
Out of 20 replies - 15 are you?
Enjoy a book, go see a show.
Good software engineers are meticulous to the point of obsession.
If you are a software engineer, maybe you can tell us how much memory is leaked by the unclosed cursors?
I see over 1K reads/views on this topic.
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(Among other things)
And I'll obsess about it in private until I have something to share.
600 of the views are yours.
How did you arrive at that?
Or is that (600) your EE estimate?
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- Thread Starter
- #33
Depends on charging circuitry.
Poorly designed chargers can damage Li-ion batteries.
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- Thread Starter
- #34
Unless someone/something deleted /system/app/SuperUser.apk (which manages su permission checking?).
I don't see that apk on my unrooted phone.
Does one install it manually during the rooting process?
Are there rooted users here without a SuperUser.apk?
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- Thread Starter
- #35
Another security alert:
There is a blur app that is dumping all my contacts to the logs when it does its sync.
Any app that has access to the logs can extract the email addresses (and spam them?).
03-05 09:14:32.102 D/BlurAASPA( 2982): got the accountsUpdated signal
03-05 09:14:32.102 D/BlurAASPA( 2982): Got the reference for Account {name=Phone, type=com.motorola.android.buacontactadapter}
03-05 09:14:32.117 D/BlurAASPA( 2982): Got the reference for Account {name=... , type=...}
[... and many other contacts...]
Sent from my DROIDX using DroidForums App
There is a blur app that is dumping all my contacts to the logs when it does its sync.
Any app that has access to the logs can extract the email addresses (and spam them?).
03-05 09:14:32.102 D/BlurAASPA( 2982): got the accountsUpdated signal
03-05 09:14:32.102 D/BlurAASPA( 2982): Got the reference for Account {name=Phone, type=com.motorola.android.buacontactadapter}
03-05 09:14:32.117 D/BlurAASPA( 2982): Got the reference for Account {name=... , type=...}
[... and many other contacts...]
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- Thread Starter
- #36
I see messages like:
04-23 07:48:58.963 I/LittleSister( 4599): onCellLocationChanged(): got cell location that isn't gsm, ignoring...
I have a Verizon CDMA phone, not GSM.
Why is it ignoring? Only GSM (AT&T Android phones) can make use of this?
Sent from my unrooted DroidX using DroidForums app
04-23 07:48:58.963 I/LittleSister( 4599): onCellLocationChanged(): got cell location that isn't gsm, ignoring...
I have a Verizon CDMA phone, not GSM.
Why is it ignoring? Only GSM (AT&T Android phones) can make use of this?
Sent from my unrooted DroidX using DroidForums app
More out there?
Is there more people out here like this guy? I would like to follow the posts of people investigating the apps we're downloading and advising of potential security risks. The post about apps posting contact info in open areas other apps could get at is scary :icon_eek:.
SOAP Box Warning:
The droid marketplace right now is like the wild frigg'n west. Yea apple closes their apps down and thats wrong, but they do it partially for just these reasons.
If it's going to be a free for all, as it should, there should be moderators finding stuff like this and warning us as well as the developers. Rebooting is a bad thing, we should demand and expect more out these apps, not memory leaks and bad references to missing files.
This has been the dream of Linux, BSD and true Unix pioneers for decades and I'm glad to see it hitting mainstream in this fashion, but it's up to all of us to contribute to it to make it work, like questioning what's really going on...
Is there more people out here like this guy? I would like to follow the posts of people investigating the apps we're downloading and advising of potential security risks. The post about apps posting contact info in open areas other apps could get at is scary :icon_eek:.
SOAP Box Warning:
The droid marketplace right now is like the wild frigg'n west. Yea apple closes their apps down and thats wrong, but they do it partially for just these reasons.
If it's going to be a free for all, as it should, there should be moderators finding stuff like this and warning us as well as the developers. Rebooting is a bad thing, we should demand and expect more out these apps, not memory leaks and bad references to missing files.
This has been the dream of Linux, BSD and true Unix pioneers for decades and I'm glad to see it hitting mainstream in this fashion, but it's up to all of us to contribute to it to make it work, like questioning what's really going on...
random190user44
Member
A few people seem to be implying that natey2 is some ocd software engineer, simply wasting his time. I don't think he is. He has a point saying that apps are placing sensitive data in unsecure areas of the phone. I've also witnessed my phone slowing down after being on for a really long time.
Natey2, you should see if other phones like ones from HTC or samsung do the same thing. I'm not sure if you've found motoblur or the android os itself to be the cause for the slow down.
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Natey2, you should see if other phones like ones from HTC or samsung do the same thing. I'm not sure if you've found motoblur or the android os itself to be the cause for the slow down.
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Hateslinger
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Lol. I'm with you.
Sent from my rooted Thunderbolt running VirusRom AirborneTB...It's Snappy.
nathan56989
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I just found out about this app. Does anyone know what this means because its consistently on the log.
D/ dalvikvm (2390): GC_EXTERNAL_ALLOC freed 20k 52% free 3151k/6535k
seems wierd that this is always a page full of the text im seeing.
Should I even worry?
D/ dalvikvm (2390): GC_EXTERNAL_ALLOC freed 20k 52% free 3151k/6535k
seems wierd that this is always a page full of the text im seeing.
Should I even worry?
Last edited:
- Thread Starter
- #42
dalvikvm is the Virtual Machine that runs on all Androids.
GC means Garbage Collect, which is what all Java and Android virtual machines do to reclaim memory to reuse.
Android phones do a lot of GCs, but excessive GCs indicate a problem and can slow down your phone.
It takes a fairly knowledgeable software engineer to distinguish between what is normal and what is excessive in a particular implemetation.
My GC messages are a little different in syntax:
04-26 07:17:44.148 D/dalvikvm( 1387): GC_EXTERNAL_ALLOC freed 4362 objects / 226976 bytes in 54ms
What phone and Android version are you using?
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nathan56989
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Wow I'm glad I know the definition of dalvik now.
Now to Natey2 who can read a post.
My phone is a Droid 1, using UD 3.3 and raidzero kernel.
It just seemed wierd to have a never ending list with each line saying the samething even when it refreshes. There are somethings that come up but they are few and far between. Every now and then my phone gets laggy and starts getting hot, and I was just wondering if this may have something to do with that.
- Thread Starter
- #44
The Droid1 has much less memory than the DroidX.
If both were running the same apps, I'd expect the Droid1 to do far more GCs than the DroidX.
One way to verify that things get worse over time is:
1. Reboot phone.
2. Count # of GCs in a given time period (2 hours?).
3. Continue a couple of days without restarting the phone.
4. Count # of GCs for a similar time period, and compare the difference.
Not an ideal way to verify, since many variables are introduced over the couple of days, but you get the idea...
GCs take CPU time, so excessive GCs WILL slow down the phone and drain battery.
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nathan56989
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I understand completely what you're saying. However I don't think I can't count the GCs as the list is always refreshing a new one. When I say always I mean always.
That being said let say I can count them and it does get worse with time. How in the world do I figure out what is causing this, and if thats possible how do I correct the issue. I'm assuming that if it does get excessive with time, it's probably caused by an app (correct me if I'm wrong) is the only fix to uninstall the app, or can something be done in setting to restrict that app from causing this?
I know there are a lot of what ifs. If this is too rediculous just tell me to forget it.
Thanks for your time.