Re: removing refrigerator does not help with s2ram vs. fuse deadlocks (was Re: [linux-pm] Re: [PATCH] Remove process freezer from suspend to RAM pathway)

Matthew Garrett
2007-07-05T14:39:48Z

On Thu, Jul 05, 2007 at 04:41:39PM +0200, Rafael J. Wysocki wrote:
> On Thursday, 5 July 2007 16:26, Matthew Garrett wrote:
> > On Thu, Jul 05, 2007 at 04:28:11PM +0200, Rafael J. Wysocki wrote:
> > > On Thursday, 5 July 2007 15:57, Matthew Garrett wrote:
> > > > And also "Userland should not depend on userland services", which is
> > > > rather more of a problem.
> > >
> > > I think you're oversimplifying it, as far as FUSE is concerned.
> > >
> > > Namely, if there are two userland tasks, A and B, and B is uninterruptible,
> > > because A is blocked, then this is not a usual situation.
> >
> > Fuse is one case of it occuring, and if we end up with more userspace
> > drivers then the problem is only going to get worse.
>
> But this is a problem by itself, regardless of the freezer etc., no?

Why?
--
Matthew Garrett | mjg59@srcf.ucam.org