On Mon, 2007-11-12 at 15:40 -0500, Alan Stern wrote: > On Tue, 13 Nov 2007, Benjamin Herrenschmidt wrote: > > > > > On Mon, 2007-11-12 at 17:32 +0100, Johannes Berg wrote: > > > > Looks good to me, +/- a couple of things: > > > > > > > > - We _REALLY_ want the freezer to be optional and not enabled by > > > > default on PowerPC. Maybe make it a compile option ? > > > > > > Well, Alan is going to tell you that USB will break. If we need > > > confirmation for that I can do the test he suggested to you or Paul a > > > while ago. > > > > Then USB is broken today on powermacs and need to be fixed. We had a > > clear agreement at KS this year that the freezer was at best a band-aid > > and that drivers -had- to be fixed to cope regardless. > > More accurately, freezing user tasks is at best a band-aid. However > some kernel threads do need to be frozen, and keeping the freezer > around for their use makes sense. It has less overhead -- I think > -- than adding new code to do the freezing in each of these threads. I remember fixing various issues so that khubd would be safe when non frozen (among other things) a while ago. Did you guys break it all again ? Ben. _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
