You could use the kernel dumper, but you would have to implement a disk 
writer.

services/system/doc/kdumper.txt
services/kdumper
utils/k/kdserver
lib/kdutil

Darren Dukes wrote:
> Is it possible to dump all physical attached DRAM memory to some persistent storage?
>
> I'm wondering how to get around gathering lots of different process state (internal and external) in a system with 
hundreds of QNX processes executing during some hard failure that results in one process requesting a system restart.
>
> We have many GB of Hard disk space available to dump DRAM content to, but I'm not sure how we would go about dumping 
4GB of DRAM to it in a fashion that would be retrievable and usable for offline analysis (loading cores for various 
processes) after restart.
>
> Has this been solved before?
>
> Thanks
>   Darren
>
> _______________________________________________
> OSTech
> http://community.qnx.com/sf/go/post23149
>
>