Hi.

Huang, Ying wrote:

This patchset provides an enhancement to kexec/kdump. It implements
the following features:

- Backup/restore memory used both by the original kernel and the
  kexeced kernel.

Why the kexeced kernel as well?

[...]

The features of this patchset can be used as follow:

- Kernel/system debug through making system snapshot. You can make
  system snapshot, jump back, do some thing and make another system
  snapshot.

Are you somehow recording all the filesystem changes after the first
snapshot? If not, this is pointless (you'll end up with filesystem
corruption).

[...]

- Cooperative multi-kernel/system. With kexec jump, you can switch
  between several kernels/systems quickly without boot process except
  the first time. This appears like swap a whole kernel/system out/in.

How is this useful to the end user?

Regards,

Nigel