undefined instruction d5380001

Hello,

I am running 4.13.3 on rockchip 3328 platform(aarch64) with glibc 2.26
and see the following at booting:

[   11.152061] modprobe[93]: undefined instruction: pc=0000ffff8ca48ff4
[   11.152707] Code: d503201f 8a180320 92750001 365ffc20 (d5380001)
[   11.154347] modprobe[94]: undefined instruction: pc=0000ffff94243ff4
[   11.154991] Code: d503201f 8a180320 92750001 365ffc20 (d5380001)
[   11.157070] modprobe[97]: undefined instruction: pc=0000ffff839a0ff4
[   11.157715] Code: d503201f 8a180320 92750001 365ffc20 (d5380001)
[   11.159265] modprobe[98]: undefined instruction: pc=0000ffffb0591ff4
[   11.159908] Code: d503201f 8a180320 92750001 365ffc20 (d5380001)

As far as I understand d5380001 should be emulated in cpufeature.c but
it is not. What could be wrong here?



-- 
With best regards,
Matwey V. Kornilov