[CRIU] Merged some code from criu-dev into master

[Pavel Emelyanov]

On 09/07/2016 02:23 PM, Laurent Dufour wrote:
> On 06/09/2016 18:38, Pavel Emelyanov wrote:
>> Hello,
>>
>> I've pulled some features that seem to work in criu-dev into master branch.
>>
>> Eugene, the code for shmem changes tracking conflicted with the lack of
>> lazy pages in master :) Would you please, check that I resolved it correctly.
>>
>> Dima, Laurent, the PMEM patches depended on c220f6da (sigframe: prepare macro 
>> helpers for two sigframes) which in turn sat in the x32 set, so I ported one
>> too. Would you also please check that I didn't break things.
> 
> Pavel,
> 
> I figured out what is going wrong here.
> 
> When porting the commit c220f6da (sigframe: prepare macro helpers for
> two sigframes), the call to restore_gpregs() in construct_sigframe() has
> been moved back to end of the function. So it is now called after
> sigreturn_prep_fpu_frame().
> 
> I applied the attached patch which move the call back to the beginning
> of the service as done in the original patch on criu-dev.
> I was able to run succesfully all the tests for ppc64 (except maps008
> which is still broken, and mnt_tracefs which is failing due to debugfs
> mount point), and some basic TM tests as well.

Applied to master :) Thanks A LOT, Laurent!

-- Pavel