[lkml]   [2009]   [Mar]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [RFC][PATCH 8/8] check files for checkpointability
On Mon, 2009-03-02 at 09:59 -0600, Nathan Lynch wrote:
> On Mon, 2 Mar 2009 07:37:54 -0600
> "Serge E. Hallyn" <> wrote:
> > So on a practical note, Ingo's scheme appears to be paying off. In
> > order for any program's files_struct to be checkpointable right now,
> > it must be statically compiled, else (I assume) looks up
> > /proc/$$/status. So since proc is not checkpointable, the result
> > is irreversibly non-checkpointable.
> >
> > So... does it make sense to mark proc as checkpointable? Do we
> > reasonably assume that the same procfile will be available at
> > restart?
> With respect to /proc/$x/* where $x is the pid the restarted task wants,
> is that not a chicken-and-egg problem?

Do you mean that we have to go look into /proc to figure out which task
we want before we can checkpoint it? That makes the process *doing* the
checkpoint uncheckpointable, but no the process being examined.

Anyway, I'll fix /proc. It is pretty important.

-- Dave

 \ /
  Last update: 2009-03-02 17:31    [W:0.081 / U:13.152 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site