Umm, I'm no hardware guru, but memory clearing on reboot is pretty much a given. I've heard that you can freeze the memory immediately after reboot and forensically recover what was stored there, but it's more practical to put whatever data you need in a file on disk and have your loader read that file. That's what disks are for: non-volatile storage.
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Linux/Network-Security Engineer by Profession. OpenBSD user by choice.
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