On Fri, Dec 8, 2023 at 2:22 AM Hou Tao <houtao@xxxxxxxxxxxxxxx> wrote: > > + /* Wait for any running non-sleepable and sleepable BPF programs to > + * complete, so that userspace, when we return to it, knows that all > + * programs that could be running use the new map value. which could be forever... and the user space task doing simple map update will never know why it got stuck in syscall waiting... forever... synchronous waiting for tasks_trace is never an option.
