Messages in this thread | | | Date | Fri, 21 Dec 2007 19:35:27 +1100 | From | Nigel Cunningham <> | Subject | Re: [PATCH 0/3 -mm] kexec jump -v8 |
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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
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