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From "Wayne Fisher (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (CB-587) CallbackServer.run() SocketException on ICS 4.0.4
Date Thu, 26 Jul 2012 18:09:34 GMT

     [ https://issues.apache.org/jira/browse/CB-587?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Wayne Fisher reopened CB-587:
-----------------------------


I had some difficulty reproducing the issue even when going back to the v1.7.0 example that
I first used.

Then I realized that the WIFI on my Xoom has been more stable lately (don't know why). Working
on the theory that it is related to WIFI stability, I was then able to reproduce the issue
using both the v1.7.0 and v2.0.0 example apps.

I reproduced it in two ways.

First, I started the example app and tapped on "Toggle Accelerometer" to be able to see the
live updating of the accelerometer readings. Then I used the settings app to turn off WIFI.
Eclipse then caught the SocketException and the accelerometer readings stopped being updated.
I then let the app run and let the exception occur and crash the thread and the accelerometer
data remained frozen.

Second, with WIFI back on, I restarted the app and started the accelerometer again. I then
took my Xoom outside and walked away from my access point until it lost the network connection.
The accelerometer data stopped updating around the same time as the WIFI connection was lost.
Bringing the Xoom back in and view the LogCat, I saw the SocketException in the log.

So, it appears that the issue is related to the loss of the WIFI connection.

An interesting thing I noticed though, is that it is not all dead. The compass reading continues
to update even after the SocketException has occurred.

                
> CallbackServer.run()  SocketException on ICS 4.0.4
> --------------------------------------------------
>
>                 Key: CB-587
>                 URL: https://issues.apache.org/jira/browse/CB-587
>             Project: Apache Cordova
>          Issue Type: Bug
>          Components: Android
>    Affects Versions: 1.4.0, 1.7.0
>         Environment: Motorola Xoom ICS 4.0.4.
> PhoneGap 1.7.0rc1 example application.
>            Reporter: Wayne Fisher
>            Assignee: Joe Bowser
>            Priority: Minor
>             Fix For: 2.1.0
>
>         Attachments: log.txt
>
>
> I have recently started to see SocketExceptions from CallbackServer.run() on my Motorola
Xoom. I don't know exactly when it started, but it would appear to line up with the update
of the Xoom to ICS 4.0.4 that occurred a couple of weeks (or so) ago. I don't recall seeing
it on the previous version of ICS (4.0.3?).
> The exception information from LogCat follows:
> {quote}
> 04-26 15:57:58.730: W/System.err(10655): java.net.SocketException: sendto failed: ETIMEDOUT
(Connection timed out)
> 04-26 15:57:58.730: W/System.err(10655): 	at libcore.io.IoBridge.maybeThrowAfterSendto(IoBridge.java:496)
> 04-26 15:57:58.730: W/System.err(10655): 	at libcore.io.IoBridge.sendto(IoBridge.java:465)
> 04-26 15:57:58.740: W/System.err(10655): 	at java.net.PlainSocketImpl.write(PlainSocketImpl.java:507)
> 04-26 15:57:58.740: W/System.err(10655): 	at java.net.PlainSocketImpl.access$100(PlainSocketImpl.java:46)
> 04-26 15:57:58.740: W/System.err(10655): 	at java.net.PlainSocketImpl$PlainSocketOutputStream.write(PlainSocketImpl.java:269)
> 04-26 15:57:58.740: W/System.err(10655): 	at java.io.OutputStream.write(OutputStream.java:82)
> 04-26 15:57:58.740: W/System.err(10655): 	at java.io.DataOutputStream.writeBytes(DataOutputStream.java:156)
> 04-26 15:57:58.740: W/System.err(10655): 	at org.apache.cordova.CallbackServer.run(CallbackServer.java:275)
> 04-26 15:57:58.740: W/System.err(10655): 	at java.lang.Thread.run(Thread.java:856)
> 04-26 15:57:58.740: W/System.err(10655): Caused by: libcore.io.ErrnoException: sendto
failed: ETIMEDOUT (Connection timed out)
> 04-26 15:57:58.740: W/System.err(10655): 	at libcore.io.Posix.sendtoBytes(Native Method)
> 04-26 15:57:58.750: W/System.err(10655): 	at libcore.io.Posix.sendto(Posix.java:146)
> 04-26 15:57:58.750: W/System.err(10655): 	at libcore.io.BlockGuardOs.sendto(BlockGuardOs.java:177)
> 04-26 15:57:58.750: W/System.err(10655): 	at libcore.io.IoBridge.sendto(IoBridge.java:463)
> 04-26 15:57:58.750: W/System.err(10655): 	... 7 more
> {quote}
> This may be related to another issue that I have noticed with ICS 4.0.4 which is that
it drops the WIFI connection a lot.  It drops it *WAY* more frequently than the previous version
did even with "Keep Wi-Fi on during sleep" set to "Always".
> My app is based on PhoneGap v1.4.0. I see this exception with my app on the Xoom. I have
not seen it on my Samsung Galaxy S with 2.3.3 on it.
> The LogCat information above is from the 1.7.0rc1. For this test I simply created a new
Android application in Eclipse using the Android example code as is. The exception happens
even without interacting with the example app. Just leave it sit there and eventually... boom.

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