Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1452310

Re: [PATCH][v6] PM / hibernate: Introduce test_resume mode for hibernation

Show all headers | View raw

On Thu, Jul 28, 2016 at 09:32:06PM +0200, Pavel Machek wrote:
> On Fri 2016-07-22 10:30:47, Chen Yu wrote:
> > test_resume mode is to verify if the snapshot data
> > written to swap device can be successfully restored
> > to memory. It is useful to ease the debugging process
> > on hibernation, since this mode can not only bypass
> > the BIOSes/bootloader, but also the system re-initialization.
> > 
> > To avoid the risk to break the filesystm on persistent storage,
> > this patch resumes the image with tasks frozen.
> > 
> > For example:
> > echo test_resume > /sys/power/disk
> > echo disk > /sys/power/state
> > 
> > 
> > Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> > Signed-off-by: Chen Yu <yu.c.chen@intel.com>
> 
> Acked-by: Pavel Machek <pavel@ucw.cz>
> 
> (And yes, I'd still like documentation patch for this, but that can be
> done in separate patch.)
>
Thanks! Will update the doc in another patch.
Yu 

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

Re: [PATCH][v6] PM / hibernate: Introduce test_resume mode for  hibernation Pavel Machek <pavel@ucw.cz> - 2016-07-28 21:40 +0200
  Re: [PATCH][v6] PM / hibernate: Introduce test_resume mode for  hibernation Chen Yu <yu.c.chen@intel.com> - 2016-07-29 10:20 +0200

csiph-web