Re: Strange sudden shutdown issue with CF app

Chris,

I'm happy to inform you that it seems that this was indeed the issue, I had lots of assemblies that were part of the project, some were 3rd party and others were because the project are devided in layers and every layer had its own dll, I've changed it that they should be devided only logical instead of phisical and pliminery results show that the issue is gone....!!!

Thanks again for your help....

Regards,
Shloma

"<ctacke/>" <ctacke[at]opennetcf[dot]com> wrote in message news:e0lBDoM8HHA.1444@xxxxxxxxxxxxxxxxxxxxxxx
How much virtual memory is available for the current process? That's what's going to trigger it, not physical memory. Phone devices are notoriously low on virtual memory right out of the box because the OEMs decide to put every little thing into its own DLL and then have 25 processes launched at boot.


--

Chris Tacke, Embedded MVP
OpenNETCF Consulting
Managed Code in an Embedded World
www.OpenNETCF.com



"Shloma Baum" <shlomabaum-spam@xxxxxxxxx> wrote in message news:e1ajNdM8HHA.3916@xxxxxxxxxxxxxxxxxxxxxxx
Chris,

Do you know if a WM_HIBERNATE would be sent even if there are lots of memory availible? the device has over 30 MB avalible and is still freaking out...

Regards,
Shloma

"<ctacke/>" <ctacke[at]opennetcf[dot]com> wrote in message news:uY9b0jL8HHA.5984@xxxxxxxxxxxxxxxxxxxxxxx
It's quite possible that other activity on the device is causing memory pressure and a WM_HIBERNATE message is then broadcast to all apps. Your app would receive that and do a GC.Collect and it may also be shut down by the OS. You can always handle the closing event to prevent that - an IMessageFilter is also an option for knowing when these events occur.


--

Chris Tacke, Embedded MVP
OpenNETCF Consulting
Managed Code in an Embedded World
www.OpenNETCF.com


"Shloma Baum" <shlomabaum-spam@xxxxxxxxx> wrote in message news:%23zbkp$J8HHA.5404@xxxxxxxxxxxxxxxxxxxxxxx
Hi,

We have created an app that basically connects to a web service gets data, then stores it locally on the device, and when a record needs to be modified/added the system first tries to connect the web server sees if its availible, if not then it stores in locally on the device until the connection comes back, now I noticed that if the device does not mess around with the data connection then the application sits nicely as long as its open, and never gets shut down (unless the system automatically shuts it down due to memory constraints).

However on devices that has a phone, and even more if the device is connected to an exchange server with push email and/or there are calls for a longer period of time, if you go back to the application afterword and while doing basically anything that worked before (before a lengthy call or so, don't know really what is causing but I've seen some indication that this might be the case) like a charm but now doing that same action will blow out the program, most of the times without any exception, and sometimes I would get NullReferenceException and the trace will show really basic internal trace, and everytime something else where the same action before worked just fine, and also note that those exceptions point no where to anything related to the connectivity of the device, but mostly front end stuff. But again most of the time I get no exception at all but just simply disappears.

It might be that there are some external native exception that is not being chought but am puzzled at where to start looking.

Hope someone might come up with some, as I'm puzzled and dont know where to focus on.

Regards and thanks in advance
Shloma






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