> When global or container-init processes use CLONE_PARENT, they create a > multi-rooted process tree. I take this to be the real motivation for your change. But you don't mention it in the code comment. > + * Swapper process sets the handler for SIGCHLD to SIG_DFL. If init > + * creates a sibling and the sibling exits, the SIGCHLD is sent to > + * the swapper (since the swapper's handler for SIGCHLD is SIG_DFL). > + * But since the swapper does not reap its children, the zombie will > + * remain forever. So prevent init from using CLONE_PARENT. This would be fixed by having swapper set its SIGCHLD to SIG_IGN instead, so such children self-reap. That seems like the better fix for that. If you want to make this change because of container-init issues, I think you should just say so independent of this global-init case. Thanks, Roland _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
