> Can we use existing backend pstore ram driver (fs/pstore/ram.c) for DDR > instead of SRAM ?
The expectation for pstore is that the system will go through a reset when it crashes. Most systems do not preserve DDR contents across reset. > Was the current driver written only to support persistant RAM like SRAM > or it can accept further change Linux is in a constant state of change :-) > to support DDR, If we have a mechanism to copy stored data from DDR to > external device after the crash. See above about DDR contents. But if you have a platform that does preserve DDR contents until your "mechanism" can copy the pstore buffer, then post a patch. -Tony