[CRIU] crash when restoring with current git master?

[Tycho Andersen]

On Fri, Apr 24, 2015 at 09:15:46PM +0300, Cyrill Gorcunov wrote:
> On Fri, Apr 24, 2015 at 11:53:41AM -0600, Tycho Andersen wrote:
> > Hi all,
> > 
> > When doing a c/r of lxc containers (vivid host, vivid container), I'm
> > getting a crash sometimes. It looks like something is dying in the
> > restorer blob:
> > 
> > http://paste.ubuntu.com/10880188/
> > 
> > Has anyone seen this? Any idea what's causing it?
> 
> Didn't see like this before. But definitely something goes bad in cgroups at least
> 
>  | (00.084962)    333: Error (files-reg.c:1055): File sys/fs/cgroup/perf_event/lxc/u2-30/cgroup.procs has bad size 17 (expect 11)
> 
> someone write another task there?

Ah, whoops. I missed this somehow in the log. That's probably what's
happening. Note that criu hangs on this error; the attached patch
fixes the hang.

Tycho
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