Messages in this thread | | | Subject | Re: [PATCH 0/2 -mm] kexec based hibernation -v5 | From | "Huang, Ying" <> | Date | Fri, 12 Oct 2007 11:19:32 +0800 |
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On Thu, 2007-10-11 at 12:17 +0200, Rafael J. Wysocki wrote: > On Thursday, 11 October 2007 04:13, Huang, Ying wrote: > > Kexec base hibernation has some potential advantages over uswsusp and > > TuxOnIce (suspend2). Some most obvious advantages are: > > Well, I have some doubts as far as the obviousness is concerned.
OK, I will remove the "obvious".
> > 1. The hibernation image size can exceed half of memory size easily. > > This is also possible with TuxOnIce.
I will add detail description about this. It is possible with TuxOnIce, and hard with u/swsusp.
> > > 2. The hibernation image can be written to and read from almost > > anywhere, such as USB disk, NFS. > > This is possible with uswsusp, at least in theory, probably with TuxOnIce too.
I will remove this.
> > 3. It is possible to eliminate freezer from kexec based hibernation > > implementation. > > This isn't true as long as we have not changed the handling of devices > (which is in the works, but will take time).
I know it has not been implemented yet. I just say that it is possible for khibernation and it is almost impossible for u/swsusp and TuxOnIce.
> > 4. Based on kexec/kdump implementation, the kernel code needed is > > less. > > Well, maybe. >
Best Regards, Huang Ying - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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