On Saturday, 28 April 2007 20:32, David Lang wrote: > On Sat, 28 Apr 2007, Pavel Machek wrote: > > >> > >> We freeze user space processes for the reasons that you have quoted above. > >> > >> Why we freeze kernel threads in there too is a good question, but not for > >> me to > >> answer. I don't know. Pavel should know, I think. > > > > We do not want kernel threads running: > > > > a) they may hold some locks and deadlock suspend > > > > b) they may do some writes to disk, leading to corruption > > > > We could solve a) by carefully auditing suspend lock usage to make > > sure deadlocks are impossible even with kernel threads running. > > remember that we are doing suspend-to-disk, after we do the snapshot we will > be > doing a shutdown. that should simplify the locking issues
That's assuming that we won't need to cancel the hibernation. Greetings, Rafael - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
