Hi Greg,
sorry, I lost the overview -- the KPTI 4.14, 4.9 and 4.4 patch set is diverging...
I am missing patches like
x86/pti: Switch to kernel CR3 at early in entry_SYSCALL_compat() x86/pti: Make sure the user/kernel PTEs match
in 4.9.
The first one was really important but the problem might be hidden now due to
x86/cpu, x86/pti: Do not enable PTI on AMD processors