On Wed, Apr 09, 2014 at 11:47:16AM +0530, Krishan Berwal wrote: > root at dc:/criu-1.2# criu check > Error (tun.c:67): No proper support for tun dump/restore: File descriptor > in bad state OK, so your kernel doesn't support c/r for TUN devices. This is not critical if the programs you're dumping not using tun/tap.