This may be in another post, but I'm working on a Tungsten T5 and I get messages, like, but not entirely the same as:
MemoryMgr.c, Line:3721, NULL Handle
or
MemoryMgr.c, line:4725, Chunk under-locked
On the device, there is 8.5M free out of 63.8
To me it seems like there are memory issues...