[CRIU] [PATCH] net: Don't fail if there is no ip dump data

[Cyrill Gorcunov]

On Thu, Mar 21, 2013 at 02:18:04PM +0400, Pavel Emelyanov wrote:
> On 03/21/2013 02:03 PM, Cyrill Gorcunov wrote:
> > On Thu, Mar 21, 2013 at 01:37:30PM +0400, Pavel Emelyanov wrote:
> >> On 03/21/2013 10:11 AM, Cyrill Gorcunov wrote:
> >>> If we met empy file just continue execution.
> >>
> >> Why is that correct?
> > 
> > If there is no say route information (everything net related
> > is down, including lo) i presume the ip dump will be empty,
> 
> Do you presume, or have checked this?

While working on cpt2 I've not yet addressed a problem of conversion
of net related data, thus I wrote "stub" empty files for that and
found if this situation happens the crtools can't bootstrap because it
tries to run ip tool with no data provided and fails (while with this
patch crtools passes and continue trying restore the program).

Why do we assume that routing/ifaddr/link information will be _always_
present on any machine?