Okay, I see: refcnt is incremented in KSPGetPC().

On Thu, Mar 29, 2012 at 1:12 PM, Jed Brown <jedbrown@mcs.anl.gov> wrote:

And refct is decremented from 2 to 1.

On Mar 29, 2012 12:04 PM, "Dmitry Karpeev" <karpeev@mcs.anl.gov> wrote:
Are you sure this is correct?
KSPDestroy(&eksp) will still call PCDestroy() on subpc:
Dmitry.

On Thu, Mar 29, 2012 at 12:54 PM, Jed Brown <jedbrown@mcs.anl.gov> wrote:
On Thu, Mar 29, 2012 at 10:45, Dmitry Karpeev <karpeev@mcs.anl.gov> wrote:

And the corresponding update to make GAMG stop leaking this PC.