Restoring persistent application data from non-volatile memory after a system crash or system reboot

A semiconductor apparatus comprising:

• one or more substrates;
• and
• logic coupled to the one or more substrates, wherein the logic is implemented at least partly in one or more of configurable logic or fixed-functionality hardware logic, the logic coupled to the one or more substrates to:
• associate a unique identifier with an application;
• create an entry in a metadata table, wherein the metadata table is at a fixed location in a persistent system memory;
• populate the entry with the unique identifier, a user identifier, and a pointer to a root of a page table tree;
• and
• recover in-use data pages after a system crash, wherein the in-use data pages are recovered from the persistent system memory based on the metadata table and include application heap information and application stack information.

At least one non-transitory computer readable storage medium comprising a set of executable program instructions, which when executed by a computing system, cause the computing system to:

• associate a unique identifier with an application;
• create an entry in a metadata table, wherein the metadata table is at a fixed location in a persistent system memory;
• populate the entry with the unique identifier, a user identifier, and a pointer to a root of a page table tree;
• and
• recover in-use data pages after a system crash, wherein the in-use data pages are recovered from the persistent system memory based on the metadata table and include application heap information and application stack information.

A method comprising:

• associating a unique identifier with an application;
• creating an entry in a metadata table, wherein the metadata table is at a fixed location in a persistent system memory;
• populating the entry with the unique identifier, a user identifier, and a pointer to a root of a page table tree;
• and
• recovering in-use data pages after a system crash, wherein the in-use data pages are recovered from the persistent system memory based on the metadata table and include application heap information and application stack information.