On Tue, Apr 21, 2020 at 01:28:31PM +0200, Oleg Nesterov wrote: > On 04/21, Oleg Nesterov wrote: > > > > The corner case is release_task() when the last exiting sub-thread sends > > a signal on behalf of its ->group_leader, and at this point all the tsk's > > pid pointers are NULL, that is why "force" can be falsely "true". > > Or do_notify_parent() can be called by debugger from the parent namespace, > in this case "force" can be falsely "true" too. That's an interesting scenario to think about as well. Cross-pid-namespace interactions are fun... That's why the cross-pid-namespace-signal sending aspects we discussed a while back on-list though pretty nice to have at some point are somewhat scary. Christian _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/containers
