Used nightly-81 Citra.
Not Error...

win10 x64
i7 6700
GTX 1080
Bleeding Edge Build 228 Error log.
[ 9.636248] Kernel.SVC <Warning> core\hle\svc.cpp:CreateThread:563: Newly created thread is allowed to be run in the SysCore, unimplemented.
Old Citra Bulid (12/1/2016) works.
(However, huge noise flows through the sound all the time.)

This is corelated to #2411
still happens in the latest nightly and canary
log.zip
still happens in the lastest nightly
citra_log.zip
Most helpful comment
still happens in the lastest nightly
citra_log.zip