Kernel 4.15 lost set_robust_list support on POWER 9

[Mauricio Faria de Oliveira]

On 02/05/2018 11:06 PM, Nicholas Piggin wrote:
> Does this help?
> 
> powerpc/64s/radix: allocate guard-PID for kernel contexts at boot

Yes, the test-case passes:

     # strace -e set_robust_list -f ./test
     set_robust_list(0x7fff8d453910, 24)     = 0
     +++ exited with 0 +++

     # uname -r
     4.15.0.guardpid

Thanks!

cheers,
Mauricio