On Tue, 2007-07-03 at 09:44 +0200, Oliver Neukum wrote: > Am Dienstag, 3. Juli 2007 schrieb Benjamin Herrenschmidt: > > So to summarize, the plan that makes things work with fuse is: > > > > - For STR, don't do the freezer thing. > > > > - For STD, don't sys_sync() after you froze > > > > There might be -other- issues, but that should get you through some of > > At the risk of repeating myself. Character device drivers are written > with the assumption that normal io and suspend/resume do not race > with each other due to the freezer. > What do you intend to do about that? Ugh ... "character devices" ... that's a pretty wide statement... there's lots of those and very different one from the other... Any sane device-driver will have to cope with being suspended in a "live" system. I've demonstrated multiple times in the past why this is necessary anyway, for things like dynamic power management, among others. The whole freezer thing is a hack job to avoid fixing drivers that need fixing. Unfortunately, I believe in that area, it's simply not sustainable. Besides, getting drivers to behave properly isn't very hard in most cases. Ben. _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
