Re: [RFC PATCH v3 for 4.15 08/24] Provide cpu_opv system call
From: Andi Kleen
Date: Mon Nov 20 2017 - 13:49:34 EST
> Having cpu_opv do a 4k memcpy allow it to handle scenarios where
> rseq fails to progress.
If anybody ever gets that right. It will be really hard to just
test such a path.
It also seems fairly theoretical to me. Do you even have a
test case where the normal path stops making forward progress?
-Andi