[CRIU] ppc64le criu auxv problems

[Adrian Reber]

I have problems building CRIU on ppc64le and running the binary on
different kernel versions. This is from the standpoint of providing a
distribution package. I want to build criu on a 3.10 kernel and have the
same binary run on 4.1x.y

The problem with ppc64le is that the following test tells me that there
is something wrong:

############## Test zdtm/static/cmdlinenv00 FAIL at result check ###############
Test output: ================================
06:02:02.188:    30: old cmdline: ./cmdlinenv00
06:02:02.188:    30: old environ: RHTS_OPTION_COMPAT_SERVICE=
06:02:02.300:    30: new cmdline: ./cmdlinenv00
06:02:02.300:    30: new environ: RHTS_OPTION_COMPAT_SERVICE=
06:02:02.300:    30: FAIL: cmdlinenv00.c:116: auxv corrupted on restore (errno = 11 (Resource temporarily unavailable))


which is correct and kind of related to:

    commit c10e0d215412edac55e941f57cc4ba80422968dd
    Author: Gianfranco Costamagna <costamagnagianfranco at yahoo.it>
    Date:   Wed Jul 5 12:50:07 2017 +0200
    
        Fix ppc64el build failure, by not redefining AT_VECTOR_SIZE_ARCH


CRIU hardcodes it to 6 and newer kernels set it to 14. So if I compile
my CRIU package on an older kernel it is set to 6. If I run the same RPM
on a newer kernel I get the failure from above as it does not match the
compile time values any more. Any ideas how to solve this during
runtime?

		Adrian