Messages in this thread | | | Date | Wed, 4 Aug 2010 16:53:37 -0700 (PDT) | From | david@lang ... | Subject | Re: Attempted summary of suspend-blockers LKML thread |
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On Thu, 5 Aug 2010, Rafael J. Wysocki wrote:
> On Thursday, August 05, 2010, david@lang.hm wrote: >> >> My proposal would never freeze a subset of processes. >> >> what my proposal: >> >> only consider the activity of a subset of processes when deciding if we >> should suspend or not. If the decision is to suspend, freeze everything. > > That alone doesn't allow you to handle the race Matthew was referring to > (ie. wakeup event happening right after you've decided to suspend). > > A mechanism of making a decision alone is not sufficient, you also need a > mechanism to avoid races between wakeup events and suspend process. >
I thought you just posted that there was a new feature that would be able to abort the suspend and so that race was closed.
David Lang
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