Hi Andrei, > This series introduces the PTRACE_O_ARM64_RAW_REGS option. If it is set, > PTRACE_GETREGSET returns values of all registers, and PTRACE_SETREGSET > allows to change any of them. thanks for picking this up. I meant to work on this, but unfortunately ran out of time to be able to push it through, so I'm glad you're working on it, since it does absolutely need to get fixed. Besides this issue, the other problem we ran into when trying to port our ptracer to aarch64 is that orig_x0 is not accessible through the ptrace interface on aarch64, which can cause tricky behavior around restarts. We managed to work around that in the end, but it's painful. If we're fixing the kernel here anyway, I'm wondering if we might want to address that as well while we're at it. Keno
