Quick search here revealed lotsa similar problems, but no real resolution. All reported on emulator and fix might be available by upgrading emulator SDK.
I get the error on the 3510i phone. More I use the connections, more likely the error is to happen.
HTTP post to the server is simple. Reply is a PNG, that is shown via createImage. After doing this couple of times, phone splashes the "Global root overflow" (gray screen of death ;-)
Last HTTP post however told that there's for instance 110KB of free memory(obtained from Runtime class).
At least on emulator the reply from server was in chunked mode, application/octet-stream and no content length, so the routine fell to read one byte at a time until finished. And still that fatal error occasionally.
Is there any way of telling what overflowed( native heap)?
Might the 7650 error on dynamic createImage() and images not being destructed be on 3510i also?
Can it be caught somehow? Any ideas on debugging / isolating the problem?
Too bad it shows only in physical device, not in emulator. And also in conjunction with HTTP i/o (as it seems). Otherwise I could try to post debug info to the server ;-)
Extensive runs on emulator (varous phone makes) reveal nothing fatal. Everything works ok. Also on 3410 I never got that error :-(