[rramadass]

Thanks for the hints. For one product that i had worked on, we had something like the above for runtime logging/debugging. A shared memory area (i.e. address range in Linux process space where shared libraries are loaded) at a fixed address was reserved via linker scripts with each process having its ring buffer at its own fixed offset. A separate reader process interacted with the CLI to provide comprehensive access to this data. It was all robust and worked quite well.

Unfortunately, these sorts of practical techniques are not known to many programmers and it would be nice if somebody (eg. you :-) were to list it on a website/book with some sample code for everybody's benefit.