On Fri, 2007-12-21 at 19:35 +1100, Nigel Cunningham wrote: > 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 memory range used by kexeced kernel is also the usable memory range in original kernel. Maybe should be: backup/restore memory used by both the original kernel and the kexeced kernel. My English is poor. > [...] > > > 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). This snapshot is not used for restore/resume. It is just used for debugging. You can check the system state with these snapshots. So I think it is useful even without recording filesystem changes. > [...] > > > - 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? I am not sure how useful is this. Maybe I can run a Redhat and a Debian on my machine and switch between them. Best Regards, Huang Ying _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
