Re: [linux-pm] [PATCH] Remove process freezer from suspend to RAM pathway

[Matthew Garrett <mjg59@srcf.ucam.org>]

On Tue, Jul 03, 2007 at 03:54:55PM -0400, Alan Stern wrote:
> On Tue, 3 Jul 2007, Matthew Garrett wrote:
> > There's nothing wrong with it as such, it's just that our implementation 
> > appears to suck in a myriad of small ways that keep cropping up and 
> > biting people. Even without the sys_sync(), freezing processes results 
> > in the suspend failing because syslog is stuck in D state and won't go 
> > into the refrigerator.
> 
> Okay, I can believe that.  The proper response then is to fix the 
> freezer, not eliminate it.  Has the syslog problem been reported on 
> linux-pm?  I don't recall hearing of it before.

See the start of this thread. It's just not clear what the freezer buys 
us - removing it gets rid of a load of subtle issues and complexity, and 
turns system suspend into something that looks more like runtime 
suspend (which might then encourage people to get runtime suspend 
right...)

-- 
Matthew Garrett | mjg59@srcf.ucam.org