>> So I suggested to have a kthread be pid == 1 for each new pid namespace. >> the kthread can do the killing of all tasks if needed and will die when >> the refcount on the pid namespace == 0. >> >> Would such a (rough) design be acceptable for mainline ? > > The case that preserves existing semantics requires us to be able to > run /sbin/init in a container. Therefore pid 1 should be a user space > process. /sbin/init can't run without being pid == 1. hmm ? need to check. When we have more of the pid namespace, it should be easier. > So I don't think a design that doesn't allow us to run /sbin/init as > in a container would be acceptable for mainline. I agree that user space is assuming that /sbin/init has pid == 1 but don't you think that's a strong assumption ? on the kernel side we have is_init() so it shouldn't be an issue. C. _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
