Preserving guest memory across kexec
Preserving guest memory across kexec
Posted May 21, 2022 12:37 UTC (Sat) by mb (subscriber, #50428)In reply to: Preserving guest memory across kexec by developer122
Parent article: Preserving guest memory across kexec
Yes. Processes have lots of kernel state that's not easily retained across reboots. That's basically what checkpoint/restore solves.
If you don't want to access the disk, then the only additional thing needed would be a ramdisk that survives reboots where the checkpoints are stored. Such a ramdisk sounds way easier to implement than reinventing checkpoint/restore just for the kexec case.
If you don't want to access the disk, then the only additional thing needed would be a ramdisk that survives reboots where the checkpoints are stored. Such a ramdisk sounds way easier to implement than reinventing checkpoint/restore just for the kexec case.