Hi. On Friday 06 July 2007 19:09:43 Miklos Szeredi wrote: > > > > Moreover, if FUSE implements syncing, then the sync from within the freezer > > > > will almost certainly deadlock. > > > > > > Rafael, think positively: by the time fuse implements sync(), the > > > freezer will be long gone ;) > > > > Now you are entering really dangerous territory. > > If you can implement a meaningfull sync method, you must have dirty > > pages in the page cache. That means you are in the page freeing path > > of the vm. Then we are in real trouble. Don't even think about it. > > VM induced deadlocks are real nasty. I have thought about them a lot > already. Suspend shouldn't introduce any big surprises. Suspend isn't introducing the surprises. Fuse is. It creates the potential deadlocks simply by existing (this isn't suspend or hibernate specific). Nigel
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