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