lkml.org 
[lkml]   [2007]   [Sep]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [linux-pm] [RFC][PATCH 0/2 -mm] kexec based hibernation -v3
From
Date
On Fri, 2007-09-21 at 10:43 +0200, Stefan Rompf wrote:
> Am Donnerstag, 20. September 2007 07:34 schrieb Huang, Ying:
>
> > The hibernation procedure with the patch set is as follow:
> >
> > 1. Boot a kernel A
> >
> > 2. Work under kernel A
> >
> > 3. Kexec another kernel B (crash dump enabled) in kernel A.
>
> From a short glance over current Linus' arch/i386/kernel/machine_kexec.c,
> memory for the crash dump kernel B still needs to be reserved statically when
> booting A.
>
> This is one of the biggest issues with kexec based hibernation. For the
> typical notebook user, it is totally unacceptable to reserve 16 megabytes of
> memory just to be able to suspend to disk. And given the fact that current
> distribution kernels are quite modular and require early module loading, even
> more memory might be needed.
>
> IMHO, a plan how to fix this must exist or the concept of kexec based
> hibernation is a waste of time.

This issue has been resolved. The implementation method details in
another mail with title as follow:

[RFC][PATCH 1/2 -mm] kexec based hibernation -v3: kexec jump

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/

\
 
 \ /
  Last update: 2007-09-21 10:47    [W:1.423 / U:0.028 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site