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Old 01-18-2013, 04:26 AM   #1
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Thumbs down (PW) USBNetwork slows down active content ??
Weirdest thing I found so far on my 5.3.1 PW: When usbnetwork is on (had it set to auto, and on all the time over usb) active content gets really slow and unresponsive. The longer I use it the slower it gets. Particularly this one active content does that: Solitaire Collection (Kindle Edition). First thought, meh, badly programmed. But then I checked it out on my KT with 5.3.2 (non jailbroke still) and it was fine. Back to PW and disabled usbnetwork - now it doesn't have any more speed problems. So I deactivated the auto-switch, so that USBNetwork is off until I use it. Will check if it gets better with 5.3.3 and usbsetwork on.

Any explanation what would cause that?
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Old 01-18-2013, 07:38 AM   #2
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Originally Posted by DuckieTigger View Post
Weirdest thing I found so far on my 5.3.1 PW: When usbnetwork is on (had it set to auto, and on all the time over usb) active content gets really slow and unresponsive. The longer I use it the slower it gets. Particularly this one active content does that: Solitaire Collection (Kindle Edition). First thought, meh, badly programmed. But then I checked it out on my KT with 5.3.2 (non jailbroke still) and it was fine. Back to PW and disabled usbnetwork - now it doesn't have any more speed problems. So I deactivated the auto-switch, so that USBNetwork is off until I use it. Will check if it gets better with 5.3.3 and usbsetwork on.

Any explanation what would cause that?
That will take a bit of skill to check since you need a way to run commands that does not use USBnetworking.

The serial port connections for the Kpw are posted (and in the index pages). The thread I started also has a link to the Kpw teardown process.

It takes a very steady hand to solder to the contact pads and a 1.8 volt, low voltage serial to USB adapter.

That gives you access to the operator's console of the OS.
From which you can run applications (such as ps and top) that will tell you what is eating up the CPU resources in both cases.
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Old 01-18-2013, 07:44 AM   #3
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Ahh, thank you. Makes sense that it is hard to check while it is off USBNetworking. Since the slowdown is only noticeable when it is turned on (even not in use) I will see what I can find. Thought maybe it is a known problem with USBNetwork - can't really think of any reason why that would be.
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Old 01-18-2013, 07:45 AM   #4
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^ what knc1 said. It does seem very weird indeed. An alternative, which doesn't need serial access, could be to write a startup script (or cronjob) which periodically runs something like "free", "ps" etc., and logs them to a file.

Plus, of course, you could check the logfiles for oddities (possibly with ;debugOn, too).
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Old 01-18-2013, 09:21 AM   #5
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Yes - it does sound strange. It must be interacting with something else.

ixtab's scripting suggestion might be able to catch what is happening.
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Old 01-18-2013, 10:31 AM   #6
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Small update: Even without usb network on, it managed to crash really good. It said - an error occured in your application, kindle will restart in 5 sec. I made a screenshot of that, and it flashed, so hopefully that evidence is there later. Funny enough after the restart it appears to work now. Now testing what I need to do to make it crash again.

Might be completely unrelated to USB Network.

Already tried other active content, used CM, JBPatch, opened and read some in a book. Enabled USB Network again. Nada, that game still plays fine.



Yeah, I want it to work, but I would like to know what it, the Kindle or me is doing wrong.
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Old 01-18-2013, 11:22 AM   #7
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read your crash log.

/mnt/us/developer/<thing>/work/crash.log

will tell you why.
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Old 01-18-2013, 11:32 AM   #8
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Quote:
Originally Posted by twobob View Post
read your crash log.

/mnt/us/developer/<thing>/work/crash.log

will tell you why.
Not necessarily. The Kindles do all sorts of crazy stuff all by themselves
Generally, looking at the showlog output is more promising, but of course, it's worth taking a look at the dev crash logs too.
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Old 01-18-2013, 12:32 PM   #9
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It only says memory in critical state and heap memory low. And once a User interface call took longer than 5000ms.

crash.log:
Spoiler:
Code:
--------------------------------------------------------------------------------
[1/18/13 9:00 AM] Solitaire Collection (v. 1.1)

java.lang.OutOfMemoryError: [I
	at java.awt.image.DataBufferInt.<init>(Unknown Source)
	at java.awt.image.BufferedImage.<init>(Unknown Source)
	at java.awt.image.BufferedImage$1.newBufferedImage(Unknown Source)
	at java.awt.AGUIGraphicsConfiguration.createCompatibleImage(Unknown Source)
	at com.oak.solitaire.Images.getImage(Images.java:122)
	at com.oak.solitaire.Images.get(Images.java:150)
	at com.oak.solitaire.Images.getGameHeader(Images.java:190)
	at com.oak.solitaire.GameTable.<init>(GameTable.java:232)
	at com.oak.gametables.Klondike.<init>(Klondike.java:24)
	at com.oak.solitaire.GameDesc.makeGameTable(GameDesc.java:54)
	at com.oak.solitaire.Solitaire.showGameTable(Solitaire.java:111)
	at com.oak.solitaire.Solitaire.showGameTable(Solitaire.java:104)
	at com.oak.solitaire.MainMenu.showGameTable(MainMenu.java:119)
	at com.oak.solitaire.MainMenu.selectGame(MainMenu.java:111)
	at com.oak.solitaire.MainMenu.mousePressed(MainMenu.java:93)
	at java.awt.Component.processMouseEvent(Compiled Method)(Unknown Source)
	at java.awt.Component.processEvent(Compiled Method)(Unknown Source)
	at java.awt.Container.processEvent(Compiled Method)(Unknown Source)
	at java.awt.Component.dispatchEventImpl(Compiled Method)(Unknown Source)
	at java.awt.Component.dispatchEvent(Compiled Method)(Unknown Source)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Compiled Method)(Unknown Source)
	at java.awt.LightweightDispatcher.processMouseEvent(Compiled Method)(Unknown Source)
	at java.awt.LightweightDispatcher.dispatchEvent(Compiled Method)(Unknown Source)
	at java.awt.Window.dispatchEventImpl(Compiled Method)(Unknown Source)
	at java.awt.Component.dispatchEvent(Compiled Method)(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Compiled Method)(Unknown Source)
	at java.awt.EventQueueProxy.dispatchEvent(Compiled Method)(Unknown Source)
	at java.awt.AGUIEventDispatchThread.pumpOneEventForHierarchy(Compiled Method)(Unknown Source)
	at java.awt.AGUIEventDispatchThread.pumpEventsForHierarchy(Compiled Method)(Unknown Source)
	at java.awt.AGUIEventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)
	at java.lang.Thread.startup(Compiled Method)(Unknown Source)

--------------------------------------------------------------------------------
[1/18/13 9:26 AM] Solitaire Collection (v. 1.1)

User interface call took longer than 5000ms.

--------------------------------------------------------------------------------
[1/18/13 9:26 AM] Solitaire Collection (v. 1.1)

Memory usage is in a critical state. Memory used is 76,920 KB

--------------------------------------------------------------------------------
[1/18/13 9:28 AM] Solitaire Collection (v. 1.1)

The application is frozen because an event on the event dispatch thread is hung.

--------------------------------------------------------------------------------
[1/18/13 9:33 AM] Solitaire Collection (v. 1.1)

Memory usage is in a critical state. Memory used is 71,708 KB

--------------------------------------------------------------------------------
[1/18/13 9:36 AM] Solitaire Collection (v. 1.1)

Memory usage is in a critical state. Memory used is 71,732 KB

--------------------------------------------------------------------------------
[1/18/13 9:54 AM] Solitaire Collection (v. 1.1)

Heap memory is low: 3% is free.

--------------------------------------------------------------------------------
[1/18/13 9:54 AM] Solitaire Collection (v. 1.1)

Heap memory is low: 2% is free.

--------------------------------------------------------------------------------
[1/18/13 10:00 AM] Solitaire Collection (v. 1.1)

Memory usage is in a critical state. Memory used is 72,384 KB

--------------------------------------------------------------------------------
[1/18/13 10:01 AM] Solitaire Collection (v. 1.1)

Memory usage is in a critical state. Memory used is 72,536 KB

--------------------------------------------------------------------------------
[1/18/13 10:03 AM] Solitaire Collection (v. 1.1)

Memory usage is in a critical state. Memory used is 72,068 KB

--------------------------------------------------------------------------------
[1/18/13 10:05 AM] Solitaire Collection (v. 1.1)

Memory usage is in a critical state. Memory used is 72,128 KB

--------------------------------------------------------------------------------
[1/18/13 10:05 AM] Solitaire Collection (v. 1.1)

Heap memory is low: 1% is free.

--------------------------------------------------------------------------------
[1/18/13 10:06 AM] Solitaire Collection (v. 1.1)

Heap memory is low: 1% is free.

--------------------------------------------------------------------------------
[1/18/13 10:07 AM] Solitaire Collection (v. 1.1)

Memory usage is in a critical state. Memory used is 74,480 KB

--------------------------------------------------------------------------------
[1/18/13 10:23 AM] Solitaire Collection (v. 1.1)

Memory usage is in a critical state. Memory used is 73,556 KB

--------------------------------------------------------------------------------
[1/18/13 10:24 AM] Solitaire Collection (v. 1.1)

Memory usage is in a critical state. Memory used is 75,028 KB

--------------------------------------------------------------------------------
[1/18/13 10:26 AM] Solitaire Collection (v. 1.1)

Memory usage is in a critical state. Memory used is 74,272 KB

debug.log:
Spoiler:
Code:
2013-01-18 09:37:37,792 - 
2013-01-18 09:37:37,795 - com.oak.solitaire.MenuCard.updateLabel(MenuCard.java:58)
2013-01-18 09:37:37,796 - com.oak.solitaire.MainMenu.updateLabel(MainMenu.java:134)
2013-01-18 09:37:37,797 - com.oak.solitaire.GameTable.gameOver(GameTable.java:224)
2013-01-18 09:37:37,798 - com.oak.solitaire.GameTable.dropCursorStack(Compiled Method)(GameTable.java:506)
2013-01-18 09:37:37,798 - com.oak.solitaire.GameTable.dropCursorStack(GameTable.java:542)
2013-01-18 09:37:37,799 - com.oak.solitaire.GameTable.selectFoundation(GameTable.java:2417)
2013-01-18 09:37:37,800 - com.oak.gametables.Klondike.gameMousePressed(Klondike.java:254)
2013-01-18 09:37:37,800 - com.oak.solitaire.GameTable.mousePressed(GameTable.java:310)
2013-01-18 09:37:37,801 - java.awt.Component.processMouseEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,802 - java.awt.Component.processEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,802 - java.awt.Container.processEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,803 - java.awt.Component.dispatchEventImpl(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,804 - java.awt.Component.dispatchEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,804 - java.awt.LightweightDispatcher.retargetMouseEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,805 - java.awt.LightweightDispatcher.processMouseEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,806 - java.awt.LightweightDispatcher.dispatchEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,806 - java.awt.Window.dispatchEventImpl(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,807 - java.awt.Component.dispatchEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,808 - java.awt.EventQueue.dispatchEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,808 - java.awt.EventQueueProxy.dispatchEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,809 - java.awt.AGUIEventDispatchThread.pumpOneEventForHierarchy(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,810 - java.awt.AGUIEventDispatchThread.pumpEventsForHierarchy(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,810 - java.awt.AGUIEventDispatchThread.pumpEvents(Unknown Source)
2013-01-18 09:37:37,811 - java.awt.EventDispatchThread.pumpEvents(Unknown Source)
2013-01-18 09:37:37,812 - java.awt.EventDispatchThread.run(Unknown Source)
2013-01-18 09:37:37,812 - java.lang.Thread.startup(Unknown Source)
2013-01-18 09:37:37,813 - 
2013-01-18 09:37:37,815 - com.oak.solitaire.MenuCard.updateLabel(MenuCard.java:58)
2013-01-18 09:37:37,815 - com.oak.solitaire.MainMenu.updateLabel(MainMenu.java:134)
2013-01-18 09:37:37,816 - com.oak.solitaire.GameTable.gameOver(GameTable.java:224)
2013-01-18 09:37:37,817 - com.oak.solitaire.GameTable.dropCursorStack(Compiled Method)(GameTable.java:506)
2013-01-18 09:37:37,817 - com.oak.solitaire.GameTable.dropCursorStack(GameTable.java:542)
2013-01-18 09:37:37,818 - com.oak.solitaire.GameTable.selectFoundation(GameTable.java:2417)
2013-01-18 09:37:37,819 - com.oak.gametables.Klondike.gameMousePressed(Klondike.java:254)
2013-01-18 09:37:37,819 - com.oak.solitaire.GameTable.mousePressed(GameTable.java:310)
2013-01-18 09:37:37,820 - java.awt.Component.processMouseEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,821 - java.awt.Component.processEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,822 - java.awt.Container.processEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,822 - java.awt.Component.dispatchEventImpl(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,823 - java.awt.Component.dispatchEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,824 - java.awt.LightweightDispatcher.retargetMouseEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,824 - java.awt.LightweightDispatcher.processMouseEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,825 - java.awt.LightweightDispatcher.dispatchEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,826 - java.awt.Window.dispatchEventImpl(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,826 - java.awt.Component.dispatchEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,827 - java.awt.EventQueue.dispatchEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,828 - java.awt.EventQueueProxy.dispatchEvent(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,828 - java.awt.AGUIEventDispatchThread.pumpOneEventForHierarchy(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,829 - java.awt.AGUIEventDispatchThread.pumpEventsForHierarchy(Compiled Method)(Unknown Source)
2013-01-18 09:37:37,830 - java.awt.AGUIEventDispatchThread.pumpEvents(Unknown Source)
2013-01-18 09:37:37,830 - java.awt.EventDispatchThread.pumpEvents(Unknown Source)
2013-01-18 09:37:37,831 - java.awt.EventDispatchThread.run(Unknown Source)
2013-01-18 09:37:37,832 - java.lang.Thread.startup(Unknown Source)

Not really helpful, but maybe some java expert can see something. Is there any classes that JBPatch might have done something to?
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Old 01-18-2013, 01:09 PM   #10
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Your Kindle is simply out of memory.

PS: And no, JBPatch doesn't just randomly break things.
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Old 01-18-2013, 02:14 PM   #11
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Yep, USBNetwork only starts a telnetd/sshd than sits there doing nothing if no-one is connecting/ed, so, except eating 2 to 4MB of RAM, it shouldn't cause any issue... .
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Old 01-18-2013, 03:24 PM   #12
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Kung-Fu. Hard work over time to accomplish skill. A painter can have kung-fu... The musician can have kung-fu, or the poet who paints pictures with words and makes emperors weep. This, too, is kung-fu. Formless, nameless, the true master dwells within. Only you can free him.
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Old 01-18-2013, 06:04 PM   #13
DuckieTigger
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Join Date: Dec 2011
Device: Kindle Paperwhite
Thank you for the help. Maybe the Kindle simply runs out of memory (doh ). Could swap help? Almost tempted to try out with a loopback image in /mnt/us and see if /bin/swapon and /bin/swapoff might be a good idea to call on demand - e.g. start it, run the app that is crashing all the time, afterwards turn back off.

Unless there really is a memory leak, and no amount of virtual ram will help.
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