On Wed, 7 Nov 2018 17:44:44 +0100 Oleg Nesterov <o...@redhat.com> wrote:
> To me PT_IN_SYSCALL_STOP makes no real sense, but I won't argue. > > At least I'd ask to not abuse task->ptrace. ptrace_report_syscall() can clear > ->ptrace_message on exit if we really want PTRACE_GET_SYSCALL_INFO to fail > after > that. I really would not like to rely on ->ptrace_message remaining empty; this looks too fragile.